Re: [Elecraft] K3: DRM listening?
On Fri, 11 Dec 2009 13:07:31 -0800, Lyle Johnson wrote: >In general, DRM decoders expect a receiver IF of 12 kHz and a bandwidth >of up to 20 kHz. The K3 can provide neither without modification. I'm confused. What "20 kHz bandwidth" are we talking about? The output of the detector? Are you saying that the IF in a DRM-compatible RX has a center frequency of 12kHz, and that the detector has to look at that 12 kHz IF? >Some DRM modes are narrower and can be accommodated if the FM roofing >filter (nominal 13 kHz) is installed. But getting the IF output to the >DRM decoder still requires modifications to the K3. Like what? 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
On Fri, 11 Dec 2009 13:58:05 -0800 (PST), Bill W4ZV wrote: >I'm not sure who said 3 dB was the minimum detectable by a listener but I >believe it's incorrect. 1 dB "roughly matched the smallest attenuation >detectable to an average listener". Yes. I'm a member of the Acoustical Society and work in pro audio, so I've had to learn a LOT about these things. BUT -- that 1 dB that's the smallest change noticable by the average listener for sounds NOT in the presence of noise or other interfering signals. Add some noise that's close in level to the desired signal (or even stronger than the desired signal), and a 1 dB change becomes more obvious. For sounds with NO interfering noise, it takes a change of nearly 10 dB to be perceived as twice (or half) as loud. What really matters in communications circuits is signal to noise ratio. The poorer the signal to noise ratio, a dB or two becomes more important. John said: >Many many times i have just turned down the drive to produce 200 watts and >I have not had one station comment that my signal has dropped. That's because of a combination of two factors 1) Your signal was likely well above the noise 2) the change in LOUDNESS of your signal was eliminated by the AGC in the other guy's RX. I'm a member of a very competitive contest club. Our guys will do a lot to maximize their signals and their RX. I use RG11 to feed dipoles to save a dB of loss. I use hard line for the long run to my SteppIR to save 2 dB. I work to get antennas up a bit higher to get me over the ridge to the east, boosting my signal another dB or two. I have Beverages to hear a bit better. All of these little improvements combine to let me hear about 6dB better and transmit 2- 3dB louder. I recently put up a tower and beam, giving me about 6dB on the higher bands. Each of these changes has contributed a bit, and over tiem, my QSO rates have improved a lot. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Assembly Tools
Don, Thanks for the pointer to the XG2 -- yes, that is what I was trying to think of. About them being optional, I did see that but I was curious as to what what gains by the "precise adjustments". If the default settings give you a fully working K3, what is being done by those who are making precise adjustments? phil On Dec 11, 2009, at 10:29 PM, Don Wilhelm wrote: > Phil, > > Note that those are optional - not required, but they are useful if one wants > to do the precise adjustments - the default settings will give you a fully > working K3. > > The Elecraft XG2 has a 50 uV output level, look at the Mini Kits. > > 73, > Don W3FPR > > Phil Hystad wrote: >> The K3 Assembly guide says that you would need a accurate power meter >> measuring 1 mW to 5 W. Also, a signal generator calibrated 50 microVolts >> output at 20 or 40 meters. I have a signal generator that goes up to 5 MHz >> but I am pretty certain that the voltage adjust does not go down to 50 >> microVolts (it is pretty cheap). >> >> So, where does one get these things. >> >> I thought I remember someone telling me that there was a signal generator >> kit for generating the test signals needed for K3 assembly but I just can >> grab enough of that memory to do anything with it. >> >> Also, these tools are marked optional. Why are they optional and if they >> are useful for a particular purpose why would it not be a required tool to >> achieve the best of whatever they are being used for. >> >> __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Assembly Tools
Phil, Note that those are optional - not required, but they are useful if one wants to do the precise adjustments - the default settings will give you a fully working K3. The Elecraft XG2 has a 50 uV output level, look at the Mini Kits. 73, Don W3FPR Phil Hystad wrote: > The K3 Assembly guide says that you would need a accurate power meter > measuring 1 mW to 5 W. Also, a signal generator calibrated 50 microVolts > output at 20 or 40 meters. I have a signal generator that goes up to 5 MHz > but I am pretty certain that the voltage adjust does not go down to 50 > microVolts (it is pretty cheap). > > So, where does one get these things. > > I thought I remember someone telling me that there was a signal generator kit > for generating the test signals needed for K3 assembly but I just can grab > enough of that memory to do anything with it. > > Also, these tools are marked optional. Why are they optional and if they are > useful for a particular purpose why would it not be a required tool to > achieve the best of whatever they are being used for. > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] unable to extract files to update K3 using Win 7
More information on my problem. The problem is something with the way I have the computer set. I finally was able to get download to the K3 by using my other computer. I downloaded the zip file to my other computer (also Win 7) and then extracted the files. Everything worked as it should. I then copied the folder to a flash drive. Once that was complete, I put the flash drive in the computer I have the K3 hooked up to and copied the file to the temp file on the desktop. K3 utility worked fine and I updated the radio. Does anybody have an idea of what I am doing wrong or set wrong that will not allow me to down load the zip file or even to extract them if I copy the zip file from my one computer to the one I want it on? I am the only user of both, so I assume I am the administrator; If not, on the one computer, I have no idea how to make myself the administrator. Have tried re-boot of computer and that did not help either. Dick K8ZTT __ Information from ESET NOD32 Antivirus, version of virus signature database 4680 (20091211) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] unable to extract files to update K3 using Win 7
Dick, Since Windows 7 can open the files in the Zip Folder, have you tried selecting all the files IN the folder for download? Your problem description seems to indicate that Win7 is only downloading the folder and not its contents. 73, Don W3FPR Dick Williams wrote: > HELP!! > > I am having a heck of a problem with Windows 7 in trying to download and > extract the k3fw3r68 zip file to update my K3. It must be a Win 7 issue > because I did not have the problem with XP > > First problem is I cannot not even download it to a folder. I go to the FTP > website, click on the zip file and that opens up the File download window. > Then I click on SAVE, that gives me the save as window with the file name > k3fw3r68. For lack of a better place, I just tried to save it to COMPUTER/ > Local Disk C:, I click on SAVE and it runs through the save routine, and > the window closes (does not stay open to ask me if I want to OPEN or OPEN > FOLDER); but when I check on local Disk C, there is no folder there. > > Can't even save the darn file to a flash drive. > > On my other computer, I was able to save the file to flash drive and then > transfer it to the computer I am running the K3 on. > > However when I try and extract the files (unzip) I have no luck at all. > > What am I doing wrong with Windows 7? > > Dick K8ZTT > > > __ Information from ESET NOD32 Antivirus, version of virus signature > database 4680 (20091211) __ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.709 / Virus Database: 270.14.103/2558 - Release Date: 12/11/09 > 05:06:00 > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Assembly Tools
The K3 Assembly guide says that you would need a accurate power meter measuring 1 mW to 5 W. Also, a signal generator calibrated 50 microVolts output at 20 or 40 meters. I have a signal generator that goes up to 5 MHz but I am pretty certain that the voltage adjust does not go down to 50 microVolts (it is pretty cheap). So, where does one get these things. I thought I remember someone telling me that there was a signal generator kit for generating the test signals needed for K3 assembly but I just can grab enough of that memory to do anything with it. Also, these tools are marked optional. Why are they optional and if they are useful for a particular purpose why would it not be a required tool to achieve the best of whatever they are being used for. Thanks, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] unable to extract files to update K3 using Win 7
Additional information: I was able to download the zip file to a flash drive on my other computer. Transferred it to a folder I called TEMP and placed it on the desktop. It is k3fw3r68.zip and has a size of 470 KBs. When I right click on the file and then click on Extract All, I have a new window that says to select a destination and extract files. The default destination is the temp folder. When I click on EXTRACT, it goes through the motions and I have a new folder created called FILE FOLDER, but there is nothing in it! Thus the problem, the files I need are not being extracted. Any help would be appreciated. Thanks Dick K8ZTT __ Information from ESET NOD32 Antivirus, version of virus signature database 4680 (20091211) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] unable to extract files to update K3 using Win 7
HELP!! I am having a heck of a problem with Windows 7 in trying to download and extract the k3fw3r68 zip file to update my K3. It must be a Win 7 issue because I did not have the problem with XP First problem is I cannot not even download it to a folder. I go to the FTP website, click on the zip file and that opens up the File download window. Then I click on SAVE, that gives me the save as window with the file name k3fw3r68. For lack of a better place, I just tried to save it to COMPUTER/ Local Disk C:, I click on SAVE and it runs through the save routine, and the window closes (does not stay open to ask me if I want to OPEN or OPEN FOLDER); but when I check on local Disk C, there is no folder there. Can't even save the darn file to a flash drive. On my other computer, I was able to save the file to flash drive and then transfer it to the computer I am running the K3 on. However when I try and extract the files (unzip) I have no luck at all. What am I doing wrong with Windows 7? Dick K8ZTT __ Information from ESET NOD32 Antivirus, version of virus signature database 4680 (20091211) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 locked up, ERR KEY in display
Hi Eric, >From the K3 operating manual Display error = "ERR KEY": Problem - Attempt to key the transmitter or activate PTT during power-on Troubleshooting steps: Usually caused by an external device shorting KEY or PTT to ground; disconnect such devices until they're initialized properly. Also see CONFIG:PTT-KEY. If necessary, try removing the KIO3 module or its digital I/O daughter board. Check to see if your key is closed, or PTT is shorted or external software has RTS or DTR set to PTT the rig. Hope this helps, Frank - W6NEK - Original Message - From: "eric norris" To: Sent: Friday, December 11, 2009 8:22 PM Subject: [Elecraft] K3 locked up, ERR KEY in display My K3 is locking up and displaying ERR KEY in VFO B. It would not even respond to pressing the POWER button, I had to disconnect the power. After several power cycles it seems to be responding. WHAT UP WID DAT? 73, Eric WD6DBM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 locked up, ERR KEY in display
My K3 is locking up and displaying ERR KEY in VFO B. It would not even respond to pressing the POWER button, I had to disconnect the power. After several power cycles it seems to be responding. WHAT UP WID DAT? 73, Eric WD6DBM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Saving a new Config setting
Once you have moved to the desired setting, tap the menu switch. Dick, K6KR Sent from my iPhone On Dec 11, 2009, at 5:28 PM, Mike Weir wrote: > > Good evening all, > I have been looking through the manual to find out how to save a > config change. I was wanting to activate the KXVA3 so far I > understand that you hold the Menu button to get to the config I > then turn VFO B to KXV3 menu now what do you press or turn to enable > the KXV3 and then what button is pressed to save this new > setting.I figure it is very plain in the manual but just can't > seem to find it. > Mike > VE3WDM > > _ > Ready. Set. Get a great deal on Windows 7. See fantastic deals on > Windows 7 now > http://go.microsoft.com/?linkid=9691818 > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Saving a new Config setting
Good evening all, I have been looking through the manual to find out how to save a config change. I was wanting to activate the KXVA3 so far I understand that you hold the Menu button to get to the config I then turn VFO B to KXV3 menu now what do you press or turn to enable the KXV3 and then what button is pressed to save this new setting.I figure it is very plain in the manual but just can't seem to find it. Mike VE3WDM _ Ready. Set. Get a great deal on Windows 7. See fantastic deals on Windows 7 now http://go.microsoft.com/?linkid=9691818 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Selling QRP K2
Selling one of my three K2's on ebay. Here's the item number: Item number: 270499100011 73, Bill K9YEQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 utility program
The K3 Utility filter configuration dialog helps you to completely set up filter bandwidth, offset, gain, rx filter select by mode, and Tx filter select by mode. There is a screen shot in K3 Utility Help that shows this. Dick, K6KR Sent from my iPhone On Dec 11, 2009, at 4:20 PM, Mike Weir wrote: > > Good evening all > I am about to set the K3 up using the K3 utility program. To > configure the filters of which I have the Stock 2.7 khz 5 pole > crystal filter, inrad 500 400 and 250 filters. Does the utility take > you through all the steps that are in the manual on page 46 > (bandwidth, frequency offset and transmit crystal selection) or do I > have to go back and forth from the k3 utility to the manual for > complete filter setup? > Mike > VE3WDM > > _ > Windows Live: Make it easier for your friends to see what you’re up > to on Facebook. > http://go.microsoft.com/?linkid=9691816 > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 utility program
On Sat, Dec 12, 2009 at 2:20 AM, Mike Weir wrote: > > Good evening all > I am about to set the K3 up using the K3 utility program. To configure the > filters of which I have the Stock 2.7 khz 5 pole crystal filter, inrad 500 > 400 and 250 filters. Does the utility take you through all the steps that are > in the manual on page 46 (bandwidth, frequency offset and transmit crystal > selection) or do I have to go back and forth from the k3 utility to the > manual for complete filter setup? Not really sure what you mean by "go back and forth...", but the K3 Utility presents a form where you specify all of the filter parameters for the filters in either the main or sub receiver, then submit it to the K3. It's quite straightforward. ~Iain / N6ML __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 utility program
Good evening all I am about to set the K3 up using the K3 utility program. To configure the filters of which I have the Stock 2.7 khz 5 pole crystal filter, inrad 500 400 and 250 filters. Does the utility take you through all the steps that are in the manual on page 46 (bandwidth, frequency offset and transmit crystal selection) or do I have to go back and forth from the k3 utility to the manual for complete filter setup? Mike VE3WDM _ Windows Live: Make it easier for your friends to see what you’re up to on Facebook. http://go.microsoft.com/?linkid=9691816 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 'EO' command proposal modification
EO * (EchO; GET/SET) GET format: EO; RESP format: EO-; are hex values from -. When sent to the radio via the serial port, returns what was sent as a response, followed by '-'. If initiated from a macro, the '-' is omitted. Can be used in a front-panel macro to send a hex value to accessories which might be passively listening on the ACC serial port. Given this, one could envision peripherals attached in a passive way to the ACC port that can be informed of front-panel switch actions, or perform actions initiated by logging programs that are connected to the radio via the RS-232 port. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Duncan, Yep, I would be instantly poor...again...(:-)) Gary VK4FD --Original Message-- From: Duncan Carter Sender: elecraft-boun...@mailman.qth.net To: Merv Schweigert Cc: Elecraft Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m Sent: Dec 12, 2009 6:34 AM I'd prefer to see the long delayed Elecraft 500 to 1000 watt amplifiers that have been delayed, apparently because of the intense development of the K3 which hopefully is nearing an end. An amplifier with QSK, an internal tuner comparable to the K3 tuner, and integrated with the K3 with Elecraft's quality and attention to detail would cause money to leap straight from my bank account's to Elecraft's bank account. 73, Dunc, W5DC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Sent via BlackBerry® from Telstra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] RE: K3 Memory Management
Make that +4 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of rfenab...@gmail.com Sent: Friday, December 11, 2009 7:12 PM To: n...@nf4l.com Cc: Elecraft Subject: Re: [Elecraft] [K3] RE: K3 Memory Management Make that +3 Memory storage IS essential Gary VK4FD Sent via BlackBerryR from Telstra -Original Message- From: Mike Date: Fri, 11 Dec 2009 10:22:59 To: w4grj Cc: Subject: Re: [Elecraft] [K3] RE: K3 Memory Management +1 vote for. Mike NF4L w4grj wrote: > Wayne, > > > > The main function needed is to be able to build a database on the computer > with all needed memories, mode, etc. then write (upload) to the K3. Also, be > able to read the K3 memories and store in the computer. > > > > Hope this helps. > > Jack > > W4GRJ > > > > > > From: wayne burdick [via Elecraft] > [mailto:ml-node+4143185-509526...@n2.nabble.com] > Sent: Wednesday, December 09, 2009 8:34 PM > To: w4grj > Subject: Re: [Elecraft] K3 Memory Management > > > > Hi Greg, > > We'll be adding this function to our "K3 Utility" program at some > point. We'd be happy to get your input on it. > > 73, > Wayne > N6KR > > On Dec 9, 2009, at 5:24 PM, w4grj wrote: > > > >> I am brand new K3 owner, unless I have missed something in all my >> research, >> cannot find a program to manage memory via the PC. I surely hope I >> am wrong, >> currently using a TS-480, the Kenwood utility is simple and does a >> great job >> of running the radio via the PC including uploading & downloading >> memory >> with associated parameters. >> >> Is there a similiar program available for the K3? >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.426 / Virus Database: 270.14.102/2556 - Release Date: 12/11/09 19:37:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Me too, me too, me too... More competition... Dang..(:-)) Gary VK4FD Sent via BlackBerry® from Telstra -Original Message- From: Julius Fazekas n2wn Date: Fri, 11 Dec 2009 08:14:05 To: Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m Dang! Competition ;o) Craig D. Smith wrote: > > I want one too > >... Craig AC0DS > > <> Wondering if anyone has a suggestion of a solid state amp or "pushing" > the K3 > <> PA to obtain 150 watts out on 160m? > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3#1875 -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4152136.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Help with CAT control with K3 using CW Skimmer
Forgot the subject in my earlier post of a few minutes ago... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] (no subject)
As we age the brain (or at least mine) gets confused so easy..the love of my life (my K3) works flawlessly in CAT with HRD using Elecraft's serial/USB cable. CW Skimmer also works flawlessly (using 3KHZ mode) but I cannot get the CAT side of CW Skimmer to cooperate. I am using a laptop (and Vista) which does not have a serial port, thus the USB. Within CW Skimmer's settings I experimented with all of the COM port settings and on COM 3 I can get the frequency bar to "light up" but neither display the frequency nor control the rig. Am I missing something, is there a workaround...anybody help! Thanks, Larry VE3LR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] RE: K3 Memory Management
Make that +3 Memory storage IS essential Gary VK4FD Sent via BlackBerry® from Telstra -Original Message- From: Mike Date: Fri, 11 Dec 2009 10:22:59 To: w4grj Cc: Subject: Re: [Elecraft] [K3] RE: K3 Memory Management +1 vote for. Mike NF4L w4grj wrote: > Wayne, > > > > The main function needed is to be able to build a database on the computer > with all needed memories, mode, etc. then write (upload) to the K3. Also, be > able to read the K3 memories and store in the computer. > > > > Hope this helps. > > Jack > > W4GRJ > > > > > > From: wayne burdick [via Elecraft] > [mailto:ml-node+4143185-509526...@n2.nabble.com] > Sent: Wednesday, December 09, 2009 8:34 PM > To: w4grj > Subject: Re: [Elecraft] K3 Memory Management > > > > Hi Greg, > > We'll be adding this function to our "K3 Utility" program at some > point. We'd be happy to get your input on it. > > 73, > Wayne > N6KR > > On Dec 9, 2009, at 5:24 PM, w4grj wrote: > > > >> I am brand new K3 owner, unless I have missed something in all my >> research, >> cannot find a program to manage memory via the PC. I surely hope I >> am wrong, >> currently using a TS-480, the Kenwood utility is simple and does a >> great job >> of running the radio via the PC including uploading & downloading >> memory >> with associated parameters. >> >> Is there a similiar program available for the K3? >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Hi Brian, Was that in QEX? I seem to recall an article about this in the past couple of years. You are right all I wish to use it for is CW. I know at least a few of the responders understand what I am trying to do and why. LP categories in 160m contests allow power levels to 150 watts. Most of the time 150 watts would buy one nothing, but it is worth having just a touch more umph if the conditions are marginal on the other end. I can't squeeze anything more significant out of my Tx antenna, if I was lucky maybe 1/2 db... maybe. something under $300 in the way of a simple amp IS worth trying and may have been enough to have added 3 multipliers during ARRL160 because those guys couldn't quite pull me out. There's no downside to trying it. Thanks for all the thoughtful answers. Don't think I'll mess with the K3 PA and I don't want to move into the HP category :o) 73, Julius n2wn Brian Moran wrote: > > On 160, you could try a class-E amplifier; you're probably not going to > use anything but CW. > > > --- On Fri, 12/11/09, Edward Dickinson, III > wrote: > >> From: Edward Dickinson, III >> Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m >> To: elecraft@mailman.qth.net >> Date: Friday, December 11, 2009, 9:55 AM >> >> I am reminded of the recent sale item from Elecraft. >> The 2010 ARRL Handbook >> is to have a 250 Watt HF amp design in it. One ought >> to be able to drop the >> K3 output appropriately to drive it to 150 Watts. >> >> >> 73, >> >> Dick - KA5KKT >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3#1875 -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4154474.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RJ-11 connector on bottom of the Front Panel
Bruce, I do not recall any Elecraft response saying "no it can't" - my recollection the response has been more like "not at this time". There have been hints that it could be used for future accessories, but nothing has been brought forward yet. Yes, it is currently used for factory production testing. Now, if some ambitious K3 owner would comb through the schematic to identify the function of all the signals that appear on this connector and develop some device that serves a useful function without breaking the K3 or restricting the K3 function, I am certain it would be welcomed. As far as an Elecraft announcement of some accessory that uses this connector, I guess we will have to wait and see - the development resources at Elecraft are limited, and we do not know what the development priority list contains. 73, Don W3FPR Bruce McLaughlin wrote: > I have frequently read that the jack in question is strictly for factory > production testing and has no use beyond that purpose. I know that in the > past folks have speculated that perhaps it could be used for an external > keyboard or some other accessory. Unfortunately, the Elecraft response has > always been no it can't. Beyond that, it is a mystery. > > Bruce-W8FU > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
At 03:55 PM 12/11/2009 -0700, you wrote: >Is it really necessary to continue this thread? My inbox is seeing entirely >too much drivel like this thread and others on this reflector. > >Bob W6TR Hi I think this is one of the more interesting threads it is certainly on a par with (with due respect) "K3 Diversity use with QRN" or "ethernet to serial converter" hi hi Besides I delete 90% of the postings and keep those of particular interest to me for future reference goes fast hi. I believe it goes to the heart of some basic Amateur Radio philosophies ... the philosophies of power, competition, and achievement. Certainly not drivel. Personally I am a rag chewer and radio experimenter... I guess I don't have that competitive gene hi hi I have an academic interest in getting the most out of the least ... so I enjoy the thread as far as technical suggestions on how to eek out additional power ... but no interest in breaking into the pileup that for me is an academic interest ...(I usually don't operate on week-ends as there might be a contest hi hi) although I do receive satisfaction in completing a weak signal contact. I notice that the boots were for 160m and I think I know why. Most operators use some sort of vertical antenna which by definition will have a high level of background noise. the problem with weak signal operation on 160m is this background noise. Even if the signal could be raised 3 db over the noise you will have such a headache you won't last too long hi hi. The answer is to use a separate receive antenna not to raise the received signal strength ... but to increase the ratio of signal to noise. Completing a QSO is a 2 way street. I believe the radio should have provision for a receive only antenna as well as noise reduction circuits. I believe I have improved my 160m weak signal operations more through improving my station receiving capabilities than increasing power. Certainly the efforts bring greater rewards. Just as a sidelight ... I always enjoyed 160m from way back when I used to call in to an early morning net ... shortly after milking time almost all the participants were farmers. Everyone operated AM back then hi hi ... and i used a Heathkit DX-100 AM transmitter and a military BC348 ? receiver. The equipment has changed but the fun remains. Jim, VE3CI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] PSK31
Thanks to all out there who suggested choices for PSK decode on my Power PC Mac. R Thorpe KD6LAZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RJ-11 connector on bottom of the Front Panel
I have frequently read that the jack in question is strictly for factory production testing and has no use beyond that purpose. I know that in the past folks have speculated that perhaps it could be used for an external keyboard or some other accessory. Unfortunately, the Elecraft response has always been no it can't. Beyond that, it is a mystery. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian Moran Sent: Thursday, December 10, 2009 5:50 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] RJ-11 connector on bottom of the Front Panel What signals are available on the RJ-11 connector on the bottom of the front panel? I see some lines on the schematic that indicate the data bus is available. Can the signals on the RJ-11 be controlled via macros, or can I cause a front-panel button to put something on those control lines without otherwise performing an in-radio operation? I have an external switching matrix for listening antennas that I'd like to control via the front-panel; I theorize that I could build something that snoops the data bus via the RJ11 and then use M1-M4 to control which RX antenna I'm listening to Brian N9ADG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m [END of thread]
Let's end this thread. :-) 73, Eric Elecraft Moderator __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FS K2
K2 built and works superbly - with manual, 160-10 meters - SSB and CW, 15 watt model with MH-2 mic, KIO2 for RS-232 serial remote control, and DC power cord. Mint condition. $750.00 plus UPS shipping to 50 states - certified check or money order. w...@arrl.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KX1] KX1 ATU problem
Luke, I believe 6.3 W is the maximum that is displayed by the KX1 (that often is the power level indicated when I am calibrating the tuner wattmeter for an SWR=2.0 with my 100 ohm dummy load attached. So what 6.3 W indicated usually means is that you are trying to operate into an open circuit or a very high impedance. Think about what changes may have occurred to your antenna on 30 meters since the last time you checked - are you using the same length feedline? (as one example of how a change can easily creep in). I doubt it is the tuner. You can check the tuner by tuning into a dummy load - try that and see if it works, and if so, take a critical look at your antenna. 73, Don W3FPR KD0FIN wrote: > Well I figured out my problem (operator error). The ATU was in Calibrate mode > and not Tune mode. So it is working now. However, when I try to tune 30m the > power jumps straight to 6.3W (!) and doesn't fluctuate like the power > reading does on other bands (40m jumps from around 4.6-5.1 watts with a 12v > supply) Not to mention that the ATU gives me a somewhat poor SWR (1:2.8) on > 30m even when it used to match relatively well (<1:2). I don't currently use > 30m so it's not a big deal to me but something doesn't seem right...? > > Luke <>< KD0FIN > > > > KD0FIN wrote: > >> So I just installed the KXB3080 and completed the 2 resistor "power mod" >> but now my ATU doesn't seem to be working. It gives me power and SWR >> reading when I use the "tune" function but I don't hear the relays >> clicking and it isn't matching anything anymore. It might be unrelated but >> also it seems to be very hard to find signals as well. I could hear a >> couple faint ones on 80m but everything else seemed dead. The radio was >> working as normally as I could tell after installing the KXB3080, and I >> don't think I could have screwed up the the 2 resistors enough to cause >> any problems? >> >> > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.709 / Virus Database: 270.14.103/2558 - Release Date: 12/11/09 > 05:06:00 > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Ant Tuner Issue with RTTY
bearcat wrote: > > I use an external tuner with my K3. When I put the K3 in FSK mode to tune > all is well. Then I operate CW or SSB and all is well. Then if I QSY and > need to tune again when I switch the K3 back to FSK all I get is a low > tone > and no output. If I switch to PSK on the K3 then back to FSK all is well > again. Has anyone else seen this issue? > That sounds like a variation on the issue some of us digimode users reported a couple of months back. It was fixed soon after. Are you using the latest firmware? - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-Ant-Tuner-Issue-with-RTTY-tp4154289p4154395.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3-Ant Tuner Issue with RTTY
I use an external tuner with my K3. When I put the K3 in FSK mode to tune all is well. Then I operate CW or SSB and all is well. Then if I QSY and need to tune again when I switch the K3 back to FSK all I get is a low tone and no output. If I switch to PSK on the K3 then back to FSK all is well again. Has anyone else seen this issue? Rich K3RWN #3300 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
At 09:53 AM 12/11/2009 -1000, you wrote: >A good article on the value of a DB is an old timer in QST I think it was, >Station design for DX >I guarantee you that if you improve your station by 1Db or more you will >tell the difference, have done it and it works. A whole new layer of DX >opens up for every DB you can find. >I see comments all the time that lossy feedlines or matching or this and >that >only costs a couple DB and you cant hear that. Amen I dont hear you in >the pile ups. I bet the number of weak signal contacts have increased ... not because of increased power or improved receivers ... but because of the online service of QRZ.com hi hi I wonder how many DB they add. Many stations know my name and qth before I send it! Jim, VE3CI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Is it really necessary to continue this thread? My inbox is seeing entirely too much drivel like this thread and others on this reflector. Bob W6TR - Original Message - From: "Joe Subich, W4TV" To: "'Ignacy'" ; Sent: Friday, December 11, 2009 3:09 PM Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m > >> 2SC2782 is rated at 80W min each at 175 MHz so getting 150W >> from two on 1.8 MHz should be peanuts; the main reason why >> they are restricted to 110W in K3 is linearity (across bands) >> + component ratings. At higher power, the efficiency can be >> higher and thus K3 may actually run cooler! > > Don't try it ... with 12W max available from the LPA, the pair > of 2SC2782 are already working very near maximum gain at 100 W > output when the other losses are considered. > > The 2SC2782 shows 6.4 dB gain 1t 12.5V ... (12W drive, 80W Out). > Derating the gross output by 1 dB for circuit losses in the LPF > and T/R switch and 1 dB for linearity purposes, the net output > is right at the K3's 110 W maximum output. > > If you really must have 200/250 W output, build an external > amplifier using two MRF-150 instead of the four used in > Motorola Engineering Bulletin 103 by Helge Granberg. See: > http://www.ab4oj.com/dl/eb104.pdf > > In addition to the added power output, operating with a 48V > power supply provides improved IMD (-33 dB @ 150 W) and gain > (>20 dB). > > 73, > > ... Joe, W4TV > > >> -Original Message- >> From: elecraft-boun...@mailman.qth.net >> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ignacy >> Sent: Friday, December 11, 2009 4:06 PM >> To: elecraft@mailman.qth.net >> Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m >> >> >> >> Those who believe in authority and that God punishes >> tinkerers, PLEASE SKIP this message. >> >> 2SC2782 is rated at 80W min each at 175 MHz so getting 150W >> from two on 1.8 MHz should be peanuts; the main reason why >> they are restricted to 110W in K3 is linearity (across bands) >> + component ratings. At higher power, the efficiency can be >> higher and thus K3 may actually run cooler! >> >> So how to get 150W out of K3? >> >> 1. ALC would not let it. It needs to be fooled, e.g., by >> changing a divider in the SWR unit to indicate 100W when it is 150W. >> >> 2. At 150W the output impedance would not be 50 Ohm; it would >> be 35-40 Ohm with extra impedance added by LPF, which are >> designed for 50 Ohm. You need a manual tuner that you will >> tune for max power, not min SWR. If higher SWR causes power >> fold up, the SWR circuit needs to fooled again. >> >> 3. The radio would take more amps, say 30A, and the fuse may >> go out. If so, change the fuse or reduce the power so that >> the fuse is not tripping. >> >> Is it worth it, I am not sure. In contests, the extra power >> may make a real difference. >> >> Would Wayne and Eric approve? Never officially! >> Would K3 be ruined? I doubt it. >> Would I do it if I wanted to win a 160m contest in LP >> category and had no other alternatives? Perhaps on CW but >> never on SSB due to high IMD. >> >> >> Corresponding story >> Many years ago a power supply for IC-735 broke and the spare >> one was for 5A max. Tuned for min SWR the power was 5 W. >> Tuning for max power out generated 25W. >> Later, I tried the same trick with IC-7000. It was 5 W no >> matter what the tuning because of strong power folding under >> high SWR. Not sure what K3 would do. But there is a >> possibility that one can get 10-20W more just by tuning for >> max power out. >> >> Ignacy >> >> >> >> Julius Fazekas n2wn wrote: >> > >> > Wondering if anyone has a suggestion of a solid state amp >> or "pushing" >> > the K3 PA to obtain 150 watts out on 160m? >> > >> > A kit or HB would be fine... >> > >> > 73, >> > Julius >> > n2wn >> > >> >> -- >> View this message in context: >> http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153762.html >> Sent from the [K3] mailing list archive at Nabble.com. >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.h
Re: [Elecraft] [K3] 150 watt "boots" for 160m
> I can't find any reference to this amp after searching. Can > you provide a link? That'd provide 750W from a 15W K2 http://www.radio-ham.eu/ 73, ... Joe, W4TV > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of > Reinaldo Leandro > Sent: Friday, December 11, 2009 5:10 PM > To: n...@aiko.com > Cc: elecraft@mailman.qth.net > Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m > > > > > Reinaldo Leandro wrote: > > The > > Expert 1KA Italian amplifier with solid state finals needs only 20 > > watts drive for 1000 watts out. In fact, you must be very > careful not > > to > overdrive > > those amplifiers > > > > I can't find any reference to this amp after searching. Can > you provide > a link? That'd provide 750W from a 15W K2 > > 73, Ross N4RP > > -- > FCC Section 97.313(a) "At all times, an amateur station must > use the minimum > transmitter power necessary to carry out the desired communications." > > Here is the link to the company: > > http://www.radio-ham.eu/Expert1K-FA.htm > > The amplifier is distributed in NA by Steppir: > http://www.steppir.com/ > > It specify: - High power gain (16 dB) > > A review was published in the September QST. > > I have been using the amplifier for the last 12 months to my entire > satisfaction, in fact displacing the two other amps with > 3CX800A7 tubes. It > occupies almost the same space as the K3 and switch two > radios for a poor > guy SO2R. > I made a typo mistake stating 20 watts instead of 29 that is > typically my > case. On the K3 for tuning purposes I limit the output when > pressing tune to > 20 watts. > > > > 73 > > Reinaldo, YV5AMH > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Ron D'Eau Claire wrote: > > Quite right Bill, in an audio laboratory or perhaps in a very quiet > telephone circuit. > > But radio communications is different according to what I learned in > school, > lo' these many years past. Over half a century ago most radio > communications > engineers began using 3 dB (2:1 power ratio) as the minimum change in a > signal level that would normally be just discernable to the listener, > considering typical band noise and QSB. That was based in actual > on-the-air > observations by a great many operators over time. > Ron I cited the reference for the 1 dB definition. Please provide the same for your 3 dB number. 160 meters is a very good audio laboratory IMHO. It quickly separates those who can hear from those who cannot. 73, Bill -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4154204.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] One point eight dee bee
I forgot to say one thing. I'll try to say it quickly. This might help those of us that are still skeptical about hearing a 1.8 dB change. Forget about the cost of doing this for the moment; I'm only talking about the effort right now. If you knew for a fact that you had a 1.8 dB loss somewhere in your shack that could be reduced to 0 dB just by replacing or changing something, would you do it? Or would you say, "Naw, they can't hear 1.8 dB anyway, so I won't bother. I'll just leave the loss in the system." If you answered the latter, then I have a followup question: If you knew for a fact that you had two separate and unrelated things, each of which had a 1.8 dB loss, would you leave them as is, or replace them? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KX1] KX1 ATU problem
Is it possible that you upgraded the firmware when you added the KXB3080? If so, the menu entries are set to default, and that means it is set to ATU CAL - check the menu. 73, Don W3FPR KD0FIN wrote: > So I just installed the KXB3080 and completed the 2 resistor "power mod" but > now my ATU doesn't seem to be working. It gives me power and SWR reading > when I use the "tune" function but I don't hear the relays clicking and it > isn't matching anything anymore. It might be unrelated but also it seems to > be very hard to find signals as well. I could hear a couple faint ones on > 80m but everything else seemed dead. The radio was working as normally as I > could tell after installing the KXB3080, and I don't think I could have > screwed up the the 2 resistors enough to cause any problems? > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.709 / Virus Database: 270.14.103/2558 - Release Date: 12/11/09 > 05:06:00 > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] One point eight dee bee
Just for the record, 150 watts is actually closer to 1.8 dB over 100 watts. But
regardless, it is interesting to consider what it would take to realize this
increase on 160 meters.
The movers and shakers on this reflector have eloquently made the case that 1.8
dB really does make a difference at the other end of your transmitted signal. A
few hours ago I would have poo-poohed this, but who am I to disagree with
the folks that really know? I'm now convinced, so let's proceed on the
assumption that 1.8 dB is not only audible, but worth the effort.
I started thinking about where the typical ham could pick up 1.8 dB of extra CW
transmit signal strength on 160. By "typical"-- and I may be using the wrong
word here-- I mean the ham on an average city lot, surrounded by neighbors,
power lines, and at least somewhat mindful of aesthetics.
a. An antenna with 1.8 dB greater directivity in the direction desired.
b. 1.8 dB less antenna feedline loss.
c. 1.8 dB more power.
Let's take these one at a time.
a. According to my definition of 'typical' above, our ham doesn't have the
luxury of putting up very effective 160 m transmtting antennas. A vertical may
be out of the question due to the danger of falling into power lines. He very
likely is using something like an inverted L with a few radials that can be
placed on a small lot, or maybe even a sloper. Given the space constraints,
what could he possibly do to gain 1.8 dB? Very likely nothing-- not rearranging
the antenna, nor increasing it's size, nor increasing the ground system. He
can't increase the size of the antenna any more because of obstructions and
neighbors, nor can he lay down more radials due to driveways, patios, and
garages. If he is using a horizontal antenna (dipole, loop, etc.) then he
should try to go to a vertical of some sort like an inverted L. That may give
him 1.8 dB or more right there.
There have been some replies to the effect that arrays, Beverages, and other
arrangements can achieve the desired increase, but of course these are all out
of the question for the city lot-confined ham.
b. If our ham is feeding an antenna with RG-8 grade coax, his matched feedline
attenuation is around 0.26 dB / 100 feet at 1.8 MHz (ARRL Antenna Book, 17th
edition, p. 24-16). Unless his run is 700 feet -- unlikely on a city lot-- he
is not going to realize 1.8 dB of gain just by changing his feedline, even if
he goes to open-wire ("600 ohm") type line.
(If the SWR on the line is high then there may be some action he could take to
find a better place to feed the antenna that gives him a better match, in order
to reduce the mismatched line loss, and so a benefit would be seen at a line
length less that 700 feet. 700 feet in the previous example was considering
matched line loss only.)
c. That leaves increasing power output as his only probable recourse.
Note that I *assumed* at the outset that it was *worth* the financial
investment if 1.8 dB could be found somewhere. Of late there have been many
comments about whether it is worth the money to invest into a particular
station upgrade. But how do you place a price on 1.8 dB when your options are
extremely limited? Still, each ham must decide whether it's worth the money,
even if it is the only option when it comes to squeezing every available dB out
of a station.
Thank you for tolerating this long post. Don't forget to cut it way down if you
reply.
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Re: [Elecraft] [K3] 150 watt "boots" for 160m
Quite right Bill, in an audio laboratory or perhaps in a very quiet telephone circuit. But radio communications is different according to what I learned in school, lo' these many years past. Over half a century ago most radio communications engineers began using 3 dB (2:1 power ratio) as the minimum change in a signal level that would normally be just discernable to the listener, considering typical band noise and QSB. That was based in actual on-the-air observations by a great many operators over time. When considering changing my power level, I never consider it worthwhile to change less than 3 dB and more typically 6 to 10 dB as the minimum worth bothering with (e.g. shifting from a K2/10 at 10-15 watts CW to a K2/100 was a just worthwhile shift). When I was much younger and more "innocent" I used to scramble for each little watt, exulting in running 30 watts instead of 20 watts from a 6L6, for example, or tweaking my 6146 rig to run 90 instead of 75 watts and feeling sure that made a big difference. It sure seemed to produce more results from calls. But, looking back over logs over time, it was clearly an illusion.. That's when I acquired the sign that still hangs over my desk to remind me that "Believing is Seeing". So I don't argue with people who want to make what is a quantifiable silly choice. Instead I say, "If you want to do it and you believe it's worth it, do it." I'm no different. After all, we humans make most of our choices based on emotion and then we use rational logic to justify the choice. Ron AC7AC -Original Message- >From 100 to 150, for 1.7 dB, when Bell Laboratories research (with huge capital investment and telephone maintenance dollars on the line) determined that 3 dB was the signal strength change discernment for most people? I'm not sure who said 3 dB was the minimum detectable by a listener but I believe it's incorrect. 1 dB "roughly matched the smallest attenuation detectable to an average listener". (see below) "The decibel originates from methods used to quantify reductions in audio levels in telephone circuits. These losses were originally measured in units of Miles of Standard Cable (MSC), where 1 MSC corresponded to the loss of power over a 1 mile (approximately 1.6 km) length of standard telephone cable at a frequency of 5000 radians per second (795.8 Hz) and roughly matched the smallest attenuation detectable to an average listener. Standard telephone cable was defined as "a cable having uniformly distributed resistances of 88 ohms per loop mile and uniformly distributed shunt capacitance of .054 microfarad per mile" (approximately 19 gauge)." http://en.wikipedia.org/wiki/Decibel#History 73, Bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: DRM listening?
Could the 8.215MHz output from the IF OUT jack be fed to a simple mixer with a 8.203 or 8.227MHz crystal to provide a 12kHz i.f.? I have used this method very successfully on the Sangean ATS-803A and Lowe HF-225 receivers with both DReaM v.1.6.1cvs and DRM Software Radio v2.0.38 programs. But this was by converting the 455kHz i.f. to 12kHz. David G3DMP In a recent message, Lyle Johnson writes > >In general, DRM decoders expect a receiver IF of 12 kHz and a bandwidth >of up to 20 kHz. The K3 can provide neither without modification. > >Some DRM modes are narrower and can be accommodated if the FM roofing >filter (nominal 13 kHz) is installed. But getting the IF output to the >DRM decoder still requires modifications to the K3. > >Some DRM decoders are free, others require a licensing fee. > >WinDRM is different, being a mode designed for Amateur radio use, >primarily for digital voice but also for file transfer. -- David G4DMP Leeds, England, UK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Reinaldo Leandro wrote: > The > Expert 1KA Italian amplifier with solid state finals needs only 20 watts > drive for 1000 watts out. In fact, you must be very careful not to overdrive > those amplifiers > I can't find any reference to this amp after searching. Can you provide a link? That'd provide 750W from a 15W K2 73, Ross N4RP -- FCC Section 97.313(a) "At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications." Here is the link to the company: http://www.radio-ham.eu/Expert1K-FA.htm The amplifier is distributed in NA by Steppir: http://www.steppir.com/ It specify: - High power gain (16 dB) A review was published in the September QST. I have been using the amplifier for the last 12 months to my entire satisfaction, in fact displacing the two other amps with 3CX800A7 tubes. It occupies almost the same space as the K3 and switch two radios for a poor guy SO2R. I made a typo mistake stating 20 watts instead of 29 that is typically my case. On the K3 for tuning purposes I limit the output when pressing tune to 20 watts. 73 Reinaldo, YV5AMH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
> 2SC2782 is rated at 80W min each at 175 MHz so getting 150W > from two on 1.8 MHz should be peanuts; the main reason why > they are restricted to 110W in K3 is linearity (across bands) > + component ratings. At higher power, the efficiency can be > higher and thus K3 may actually run cooler! Don't try it ... with 12W max available from the LPA, the pair of 2SC2782 are already working very near maximum gain at 100 W output when the other losses are considered. The 2SC2782 shows 6.4 dB gain 1t 12.5V ... (12W drive, 80W Out). Derating the gross output by 1 dB for circuit losses in the LPF and T/R switch and 1 dB for linearity purposes, the net output is right at the K3's 110 W maximum output. If you really must have 200/250 W output, build an external amplifier using two MRF-150 instead of the four used in Motorola Engineering Bulletin 103 by Helge Granberg. See: http://www.ab4oj.com/dl/eb104.pdf In addition to the added power output, operating with a 48V power supply provides improved IMD (-33 dB @ 150 W) and gain (>20 dB). 73, ... Joe, W4TV > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ignacy > Sent: Friday, December 11, 2009 4:06 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m > > > > Those who believe in authority and that God punishes > tinkerers, PLEASE SKIP this message. > > 2SC2782 is rated at 80W min each at 175 MHz so getting 150W > from two on 1.8 MHz should be peanuts; the main reason why > they are restricted to 110W in K3 is linearity (across bands) > + component ratings. At higher power, the efficiency can be > higher and thus K3 may actually run cooler! > > So how to get 150W out of K3? > > 1. ALC would not let it. It needs to be fooled, e.g., by > changing a divider in the SWR unit to indicate 100W when it is 150W. > > 2. At 150W the output impedance would not be 50 Ohm; it would > be 35-40 Ohm with extra impedance added by LPF, which are > designed for 50 Ohm. You need a manual tuner that you will > tune for max power, not min SWR. If higher SWR causes power > fold up, the SWR circuit needs to fooled again. > > 3. The radio would take more amps, say 30A, and the fuse may > go out. If so, change the fuse or reduce the power so that > the fuse is not tripping. > > Is it worth it, I am not sure. In contests, the extra power > may make a real difference. > > Would Wayne and Eric approve? Never officially! > Would K3 be ruined? I doubt it. > Would I do it if I wanted to win a 160m contest in LP > category and had no other alternatives? Perhaps on CW but > never on SSB due to high IMD. > > > Corresponding story > Many years ago a power supply for IC-735 broke and the spare > one was for 5A max. Tuned for min SWR the power was 5 W. > Tuning for max power out generated 25W. > Later, I tried the same trick with IC-7000. It was 5 W no > matter what the tuning because of strong power folding under > high SWR. Not sure what K3 would do. But there is a > possibility that one can get 10-20W more just by tuning for > max power out. > > Ignacy > > > > Julius Fazekas n2wn wrote: > > > > Wondering if anyone has a suggestion of a solid state amp > or "pushing" > > the K3 PA to obtain 150 watts out on 160m? > > > > A kit or HB would be fine... > > > > 73, > > Julius > > n2wn > > > > -- > View this message in context: > http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153762.html > Sent from the [K3] mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] RE: K3 Memory Management
Back in the 80's I wrote myself a database app which dumped memories out of my radio (a JRC receiver), let me add/change, sort by frequency, mode, type (broadcast, ham, maritime, aero, etc.) and load them back into the radio, grouping them into banks (all SWBC starting at channel 1, ham at channel 51, marine at channel 101, or whatever I wanted). Was a very useful utility app for organizing what was then an unheard of number of memory channels for an amateur product (200). Would love to have something like that for the K3. Did it all in Hypercard on a Mac SE/30 -- 16 MHz 68030 chip, 9" b&w monitor, 4mb RAM (@$125/mb!), 40mb drive... Ahh, nostalgia. 73, Paul WW2PT On Dec 11, 2009, at 8:27 AM, w4grj wrote: > Wayne, > > The main function needed is to be able to build a database on the > computer > with all needed memories, mode, etc. then write (upload) to the K3. > Also, be > able to read the K3 memories and store in the computer. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Introdution.
I know you will enjoy the K3, David. I hope to work you from North Carolina; it would be a new country for me! 73 de NE4W __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Beta Firmware Rev. 3.68: Changes applicable to AGC OFF
K3 beta-test firmware revision 3.68 (with DSP rev. 2.49) is now available. This revision primarily affects those who turn AGC off. In the previous beta release (3.66), the new AF output protection feature was a bit too aggressive in the AGC OFF case, causing the audio output to occasionally become muted. The threshold has been moved up so that this shouldn't happen. If you turn AGC OFF, you should also set up the AF limiter (CONFIG:AF LIM). (This limiter has no effect when AGC is on.) Recommended values are 18-24. Some experimentation will be necessary due to differences in headphones and user preference. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Since the K3 (like virtually all current rigs) has fixed-tuned output filters, the match to the finals (and so the efficiency) will degrade as you go beyond the output power (and so impedance) for which they were designed. That means more current demand, more heating and perhaps new final transistors at regular intervals, Hi! Linearity will suffer which causes hard keying - perhaps even "clicks" - on CW and higher IMD in any mode using SSB: voice, data, etc. Of course, you can redesign the output filters as needed, but the basic limitation of linearity at higher power from a low-voltage (13VDC) transistor is a tough one. Low voltage results in a very low and difficult-to-handle output impedance from the finals at higher output powers. It's the reason 13VDC rigs typically don't exceed at 100 watts. Higher power rigs normally use a higher voltage on the transistors - frequently 50 VDC - and so have a higher output impedance. Of course that adds the weight and complexity of an internal DC-DC converter to supply the higher voltage to the finals. Bottom line, I'd expect 150 watts is 'do-able' but at considerable expense and redesign effort to produce a clean signal, all for an improvement that *may* be just discernable on a very good S-meter in one QSO out of a thousand. Ron AC7AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
>From 100 to 150, for 1.7 dB, when Bell Laboratories research (with huge capital investment and telephone maintenance dollars on the line) determined that 3 dB was the signal strength change discernment for most people? I'm not sure who said 3 dB was the minimum detectable by a listener but I believe it's incorrect. 1 dB "roughly matched the smallest attenuation detectable to an average listener". (see below) "The decibel originates from methods used to quantify reductions in audio levels in telephone circuits. These losses were originally measured in units of Miles of Standard Cable (MSC), where 1 MSC corresponded to the loss of power over a 1 mile (approximately 1.6 km) length of standard telephone cable at a frequency of 5000 radians per second (795.8 Hz) and roughly matched the smallest attenuation detectable to an average listener. Standard telephone cable was defined as "a cable having uniformly distributed resistances of 88 ohms per loop mile and uniformly distributed shunt capacitance of .054 microfarad per mile" (approximately 19 gauge)." http://en.wikipedia.org/wiki/Decibel#History 73, Bill -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4154008.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] Using K3 with Healthkit SB-220
Hello all: I just recently purchased a SB-220 amp. I would appreciate any tips from other users that would help me with this setup. I'm most interested in what K3 settings (power, etc.) are used during tuning. This is likely NOT a general interest topic, so PLEASE feel free to contact me directly. 73, Jed AD7KG K3 #2826 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Diversity use with QRN
Thanks to all for the feedback! Really much appreciated. Hope to test it soon 73, Jorge CX6VM/CW5W -Mensaje original- De: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] En nombre de Bill W4ZV Enviado el: Viernes, 11 de Diciembre de 2009 06:33 p.m. Para: elecraft@mailman.qth.net Asunto: Re: [Elecraft] K3 Diversity use with QRN David Cutter wrote: > > I have a "QRM Eliminator" by SEM (a UK firm long gone) awaiting repair and > I > wondered how best to use this in conjunction with diversity. It is a > phasing unit requiring another small (probably vertical) antenna to pick > up > local QRN, which is theoretically cancelled using its 3 controls. I > think > there are other similar products on the market. I'm thinking to combine > this with another rx antenna which would then feed the rx port of the > second > rx on the K3. It needs a little thought. > > David > G3UNA > I'm doing something similar. I have a pair of identical Beverages 887' long at 40 degrees azimuth. They're spaced ~1/8 wl apart and staggered ~1/4 wl. I'm feeding both to a MFJ-1025 Noise/Signal Phasing box. The forward lobe is relatively insensitive to phase shifting but you can steer a null to the rearand sides to reduce QRM or QRN by 20-25 dB from a specific direction. I use this as one input to my K3 in diversity and either a RX 4SQ or my transmit antenna for my other diversity antenna. W8JI has a webpage below with a number of useful mods to the 1025: http://www.w8ji.com/mfj-1025_1026.htm The 1025 works reasonably well for this but I'll soon replace it with the DXE NCC-1 which has a better front end and less internal noise. 73, Bill -- View this message in context: http://n2.nabble.com/K3-Diversity-use-with-QRN-tp4153111p4153609.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.426 / Virus Database: 270.14.98/2552 - Release Date: 12/08/09 07:34:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Memories
I'd think it would depend to a large extent what properties Elecraft exposes. 73, Mike NF4L David Fleming wrote: > I'm working on software that will create and store an unlimited number of > computer-based memories. I'm currently saving only Frequency and Mode. What > other parameters should be included in each 'Memory'?? > > tnx, > > David, W4SMT > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: DRM listening?
> Some DRM modes are narrower and can be accommodated if the FM roofing > filter (nominal 13 kHz) is installed. But getting the IF output to the > DRM decoder still requires modifications to the K3. DRM decoding with the K3 is easy with the SDR-IQ together with SpectraVue, VAC and DReaM software. I set SpectraVue to an 11 kHz passband, engage VAC and start listening to DRM. Been using it that way for the past several months with excellent results. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m - the competitive edge
Hi Lee Thats why FT2000's, Icom 7800s, 7700's and most of the 200 watt radios are selling so well to contesters and Dx'ers, even with a much poorer receiver than the K3. The importance of a 200 watt radio for many who run older style high drive amps is a deal breaker. Who is going to rebuild their old 4-1000 amps just for a new radio when you need more drive? I certainly would not. I would go out and buy a 200 watt radio. I know many DX'ers who are running FT1000D's who want to buy a K3 but wont because it does not have 200 watts of output. If 200 watts was not important I wonder why Yaesu keeps on producing radios with 200 watts of output power if they were not popular? When the new FT5000 is released its going to be one of the best selling radios because it may have a good receiver and it has 200 watts of output power. For this reason alone it will be a huge hit. I hear many many big gun stations now running 200 watts just casual dx,ing because the results are impressive enough not to need the AMP. 200 watts makes you loud enough to the point where you dont need the amp. 200 watts on CW is perfect even on the low bands when you want to work a few stations before going off to work. Very convenient! I run a old worn out Drake L4b which puts out 800 watts. Many many times i have just turned down the drive to produce 200 watts and I have not had one station comment that my signal has dropped. It looks like every new radio now will have 200 watts of output, and why not? High voltage FETs are cheap readily available, there is no excuse anymore for having 12 volt PA transistors in any high performance radio. John --- On Fri, 12/11/09, Lee Buller wrote: > From: Lee Buller > Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m - the competitive edge > To: "Elecraft Reflector" > Date: Friday, December 11, 2009, 12:04 PM > > This may be true and probably is...but as one other fellow > said1 DB is the difference between hear or not. > Now...in contesting...that is pointsor even a multipler > which could be many more points per contest. So, I > appreciate the comment here...is is the competitive edge > that is driving this thread. > > Lee K0WA > > > > > --- On Fri, 12/11/09, Guy Olinger K2AV > wrote: > > From: Guy Olinger K2AV > Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m > To: "elecraft" > Date: Friday, December 11, 2009, 1:11 PM > > >From 100 to 150, for 1.7 dB, when Bell Laboratories > research (with > huge capital investment and telephone maintenance dollars > on the line) > determined that 3 dB was the signal strength change > discernment for > most people? > > It's amazing how these slim changes hold on with hams and > spend their > money, when tons of research demonstrates the difference is > not > perceived. We FEEL GOOD running 150 instead of 100, running > 1500 > instead of 1200. Never hear it on the other end. > > The REAL TX dB is between our ears, when to transmit, where > to > transmit and what to transmit. They who have the full 27 db > allocation > there can work the pileups QRP. > > 73, Guy. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Guy, Two db does indeed make a difference no matter what you or the Bell Labs results say, and that's why the search for an extra db or two continues for anyone interesting in contesting or DXing in noisy conditions. A couple of years ago I generated some audio files to demonstrate exactly that. I recorded some scratchy band noise from 80m and mixed it with computer-generated CW of varying levels. Down at the noise level, even one db was perceptible and two db made a functional improvement. In a CW contest or in a pileup that could make a significant difference, although I'll admit that two db may not make enough difference for SSB (I also never tried it). I promised Pete I would clean up the audio files and send them to him for inclusion in the Contest Wikipedia ... I'm very delinquent on that but will try to do so within the next two or three weeks. Whether ANY increase in signal strength is worth the money required to achieve it is purely a function of the station owner and his objectives. For some folks, spending an extra $1K to $6K to get 12 db from an amplifier is not worth it. Others have obviously spent ten times that amount on towers and antennas to pick up just a few db. 73, Dave AB7E Guy Olinger K2AV wrote: > Let me get this right. You are looking for reassurance that money you > haven't spent will be well spent upping 100 to 150 watts. Perhaps > there is some part of you that doesn't believe it, or you would have > done it already? Maybe you should listen to the skeptic there. > > Well, if you do go spend it, your banker thanks you, your suppliers > thank you, but your operating savvy will dictate your success far more > than the extra watts. I can make a much better case for "the economy > needs it" than the far end. > > The Bell research DID involve accumulated noise and distortion on > multiple circuits switched in series to make longer circuits, and how > much then-manual maintenance could be needed based on customer's > perceptions of circuits. Multi-megabucks of expense per year riding > on it when gas was a nickel a gallon. So before you folks go > dismissing it > > The trick at a given ham station is the accumulation of a little here > and a little there, and yet. Eliminating loss at a half dozen places, > and size of feedline, gain of antenna, etc can ad up to dB's noone > argues about. > > 73, Guy. > > > On Fri, Dec 11, 2009 at 3:22 PM, Julius Fazekas n2wn > wrote: > >> Thanks Frank! >> 73 >> Julius Fazekas >> N2WN >> >> Tennessee Contest Group >> http://www.k4ro.net/tcg/index.html >> http://groups.google.com/group/tcg1?hl=en >> >> Tennessee QSO Party >> http://www.tnqp.org/ >> >> Elecraft K2/100 #4455 >> Elecraft K3/100 #366 >> Elecraft K3/100 #1875 >> >> >> --- On Fri, 12/11/09, w4nhj [via Elecraft] >> wrote: >> >> >>> From: w4nhj [via Elecraft] >>> Subject: Re: 150 watt "boots" for 160m >>> To: "Julius Fazekas n2wn" >>> Date: Friday, December 11, 2009, 2:30 PM >>> >>> >>> Communications Concepts can help. >>> www.communication-concepts.com/ >>> >>> >>> Frank - W4NHJ >>> >>> >>> >>> Julius >>> Fazekas n2wn wrote: >>> Wondering if anyone has a >>> suggestion of a solid state amp or "pushing" the >>> K3 PA to obtain 150 watts out on 160m? >>> >>> >>> A kit or HB would be fine... >>> >>> >>> 73, >>> >>> Julius >>> >>> n2wn >>> >>> >>> >>> >>> >>> >>> View message @ >>> http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153253.html >>> >>> >>> To unsubscribe from 150 watt "boots" for 160m, click >>> here. >>> >>> >>> >>> >> - >> Julius Fazekas >> N2WN >> >> Tennessee Contest Group >> http://www.k4ro.net/tcg/index.html >> >> Tennessee QSO Party >> http://www.tnqp.org/ >> >> Elecraft K2/100 #4455 >> Elecraft K3/100 #366 >> Elecraft K3#1875 >> -- >> View this message in context: >> http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153559.html >> Sent from the [K3] mailing list archive at Nabble.com. >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate
Re: [Elecraft] K3: DRM listening?
In general, DRM decoders expect a receiver IF of 12 kHz and a bandwidth of up to 20 kHz. The K3 can provide neither without modification. Some DRM modes are narrower and can be accommodated if the FM roofing filter (nominal 13 kHz) is installed. But getting the IF output to the DRM decoder still requires modifications to the K3. Some DRM decoders are free, others require a licensing fee. WinDRM is different, being a mode designed for Amateur radio use, primarily for digital voice but also for file transfer. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Those who believe in authority and that God punishes tinkerers, PLEASE SKIP this message. 2SC2782 is rated at 80W min each at 175 MHz so getting 150W from two on 1.8 MHz should be peanuts; the main reason why they are restricted to 110W in K3 is linearity (across bands) + component ratings. At higher power, the efficiency can be higher and thus K3 may actually run cooler! So how to get 150W out of K3? 1. ALC would not let it. It needs to be fooled, e.g., by changing a divider in the SWR unit to indicate 100W when it is 150W. 2. At 150W the output impedance would not be 50 Ohm; it would be 35-40 Ohm with extra impedance added by LPF, which are designed for 50 Ohm. You need a manual tuner that you will tune for max power, not min SWR. If higher SWR causes power fold up, the SWR circuit needs to fooled again. 3. The radio would take more amps, say 30A, and the fuse may go out. If so, change the fuse or reduce the power so that the fuse is not tripping. Is it worth it, I am not sure. In contests, the extra power may make a real difference. Would Wayne and Eric approve? Never officially! Would K3 be ruined? I doubt it. Would I do it if I wanted to win a 160m contest in LP category and had no other alternatives? Perhaps on CW but never on SSB due to high IMD. Corresponding story Many years ago a power supply for IC-735 broke and the spare one was for 5A max. Tuned for min SWR the power was 5 W. Tuning for max power out generated 25W. Later, I tried the same trick with IC-7000. It was 5 W no matter what the tuning because of strong power folding under high SWR. Not sure what K3 would do. But there is a possibility that one can get 10-20W more just by tuning for max power out. Ignacy Julius Fazekas n2wn wrote: > > Wondering if anyone has a suggestion of a solid state amp or "pushing" the > K3 PA to obtain 150 watts out on 160m? > > A kit or HB would be fine... > > 73, > Julius > n2wn > -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153762.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Help with K3 ports for CW Skimmer CAT
Larry, VE3LR wrote: > > Thanks for the reply Julian (I am a frequent visitor to your site so I > feel like I already know you!).for some reason the moderator bounced > my posting saying I wasn't registered, which I am. > Anyhow, I am curious if you know the answer to this...I have HRD shut > down, would this still affect CW Skimmer's ability to "perform" CAT? > Nope. In fact Skimmer like any other program would have trouble connecting to the K3 while HRD or anything else was running, unless you were running a serial port splitter like VSPE or LP-Bridge which I feel sure you're not. Either you've got the wrong settings or Skimmer doesn't like your USB to serial adapter. I can't think of any other explanation. It certainly would be worth trying LP-Bridge as that would (or at least should - I don't use HRD or LP-Bridge so I've never tried it) let you use Skimmer and HRD at the same time, which I imagine would be quite useful. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/Help-with-K3-ports-for-CW-Skimmer-CAT-tp4151121p4153706.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: DRM listening?
I am not sure if the 13kHz FM filter is wide enough, but if it is, your suggestion should work. I didn't have the FM filter at the time. I think PowerSDR allows 15kHz for its DRM mode and it may have less group delay distortion than the crystal filter. The decoder is finicky. Knut - AB2TC Jim Brown-10 wrote: > > On Fri, 11 Dec 2009 12:25:40 -0800 (PST), ab2tc wrote: > >> As you can guess from >>my description, it's also quite a few programs that all have to be set up >>correctly, none of them being really simple. > > Some of the programs you mention would appear to be un-necessary. If the > DRM > decoder will work with detected analog audio, all should be needed is a > feed > from the K3 line output to the computer sound card. That requires nothing > more > than a simple 2-wire cable. Or is there more that I'm missing? > > 73, > > Jim K9YC > > > -- View this message in context: http://n2.nabble.com/K3-DRM-listening-tp4152458p4153702.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Let me get this right. You are looking for reassurance that money you haven't spent will be well spent upping 100 to 150 watts. Perhaps there is some part of you that doesn't believe it, or you would have done it already? Maybe you should listen to the skeptic there. Well, if you do go spend it, your banker thanks you, your suppliers thank you, but your operating savvy will dictate your success far more than the extra watts. I can make a much better case for "the economy needs it" than the far end. The Bell research DID involve accumulated noise and distortion on multiple circuits switched in series to make longer circuits, and how much then-manual maintenance could be needed based on customer's perceptions of circuits. Multi-megabucks of expense per year riding on it when gas was a nickel a gallon. So before you folks go dismissing it The trick at a given ham station is the accumulation of a little here and a little there, and yet. Eliminating loss at a half dozen places, and size of feedline, gain of antenna, etc can ad up to dB's noone argues about. 73, Guy. On Fri, Dec 11, 2009 at 3:22 PM, Julius Fazekas n2wn wrote: > > Thanks Frank! > 73 > Julius Fazekas > N2WN > > Tennessee Contest Group > http://www.k4ro.net/tcg/index.html > http://groups.google.com/group/tcg1?hl=en > > Tennessee QSO Party > http://www.tnqp.org/ > > Elecraft K2/100 #4455 > Elecraft K3/100 #366 > Elecraft K3/100 #1875 > > > --- On Fri, 12/11/09, w4nhj [via Elecraft] > wrote: > >> From: w4nhj [via Elecraft] >> Subject: Re: 150 watt "boots" for 160m >> To: "Julius Fazekas n2wn" >> Date: Friday, December 11, 2009, 2:30 PM >> >> >> Communications Concepts can help. >> www.communication-concepts.com/ >> >> >> Frank - W4NHJ >> >> >> >> Julius >> Fazekas n2wn wrote: >> Wondering if anyone has a >> suggestion of a solid state amp or "pushing" the >> K3 PA to obtain 150 watts out on 160m? >> >> >> A kit or HB would be fine... >> >> >> 73, >> >> Julius >> >> n2wn >> >> >> >> >> >> >> View message @ >> http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153253.html >> >> >> To unsubscribe from 150 watt "boots" for 160m, click >> here. >> >> >> > > > - > Julius Fazekas > N2WN > > Tennessee Contest Group > http://www.k4ro.net/tcg/index.html > > Tennessee QSO Party > http://www.tnqp.org/ > > Elecraft K2/100 #4455 > Elecraft K3/100 #366 > Elecraft K3 #1875 > -- > View this message in context: > http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153559.html > Sent from the [K3] mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
-Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Julius Fazekas n2wn Sent: Friday, December 11, 2009 11:14 To: elecraft@mailman.qth.net Subject: [Elecraft] [K3] 150 watt "boots" for 160m Wondering if anyone has a suggestion of a solid state amp or "pushing" the K3 PA to obtain 150 watts out on 160m? A kit or HB would be fine... 73, Julius n2wn The only reason known to ask for such power increase will be to excite a power amplifier using 3-500Z or similar to full legal output. A Henry 3KA with 100 watts drive under the best of circumstances will not deliver more 1200 watts. On the other hand, new amplifiers with ceramic tubes like 3CX1500A7 or Alpha 87 with 3CX800A7 will deliver 1500 watts with only 45-50 watts drive. The Expert 1KA Italian amplifier with solid state finals needs only 20 watts drive for 1000 watts out. In fact, you must be very careful not to overdrive those amplifiers 73 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Vic K2VCO wrote: > > Guy Olinger K2AV wrote: >>>From 100 to 150, for 1.7 dB, when Bell Laboratories research (with >> huge capital investment and telephone maintenance dollars on the line) >> determined that 3 dB was the signal strength change discernment for >> most people? >> >> It's amazing how these slim changes hold on with hams and spend their >> money, when tons of research demonstrates the difference is not >> perceived. We FEEL GOOD running 150 instead of 100, running 1500 >> instead of 1200. Never hear it on the other end. > > We hear this over and over, but it is very misleading. It's true that if > you have a good > readable signal, a difference of a db or two is not noticeable. But when > the signal is > right at the noise level or QSBing in and out of it, even one db makes a > difference. As > N2WN said, it can be the difference between "?" and "N2?" -- or even > between the guy CQing > again and "?". > I agree with Vic. You'll never notice the difference when a signal is -73 dBm or -72 dBm, ~55 dB above the noise floor, but at or below the noise floor, you'll definitely notice it. Case in point from the real world today was JT1CO on 160 this morning. There were many more folks listening than actually hearing. I bet many of those who could not hear would have given anything for another dB or two of S/N (either from better receive antennas or transmit power at the other end). 73, Bill -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153675.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: DRM listening?
On Fri, 11 Dec 2009 12:25:40 -0800 (PST), ab2tc wrote: > As you can guess from >my description, it's also quite a few programs that all have to be set up >correctly, none of them being really simple. Some of the programs you mention would appear to be un-necessary. If the DRM decoder will work with detected analog audio, all should be needed is a feed from the K3 line output to the computer sound card. That requires nothing more than a simple 2-wire cable. Or is there more that I'm missing? 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
I'd prefer to see the long delayed Elecraft 500 to 1000 watt amplifiers that have been delayed, apparently because of the intense development of the K3 which hopefully is nearing an end. An amplifier with QSK, an internal tuner comparable to the K3 tuner, and integrated with the K3 with Elecraft's quality and attention to detail would cause money to leap straight from my bank account's to Elecraft's bank account. 73, Dunc, W5DC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Diversity use with QRN
David Cutter wrote: > > I have a "QRM Eliminator" by SEM (a UK firm long gone) awaiting repair and > I > wondered how best to use this in conjunction with diversity. It is a > phasing unit requiring another small (probably vertical) antenna to pick > up > local QRN, which is theoretically cancelled using its 3 controls. I > think > there are other similar products on the market. I'm thinking to combine > this with another rx antenna which would then feed the rx port of the > second > rx on the K3. It needs a little thought. > > David > G3UNA > I'm doing something similar. I have a pair of identical Beverages 887' long at 40 degrees azimuth. They're spaced ~1/8 wl apart and staggered ~1/4 wl. I'm feeding both to a MFJ-1025 Noise/Signal Phasing box. The forward lobe is relatively insensitive to phase shifting but you can steer a null to the rearand sides to reduce QRM or QRN by 20-25 dB from a specific direction. I use this as one input to my K3 in diversity and either a RX 4SQ or my transmit antenna for my other diversity antenna. W8JI has a webpage below with a number of useful mods to the 1025: http://www.w8ji.com/mfj-1025_1026.htm The 1025 works reasonably well for this but I'll soon replace it with the DXE NCC-1 which has a better front end and less internal noise. 73, Bill -- View this message in context: http://n2.nabble.com/K3-Diversity-use-with-QRN-tp4153111p4153609.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: DRM listening?
Hi, Yes, I have been using the K3, LP-Pan, PowerSDR, Virtual Audio Cable and a free decoder program called Dream. It was quite a while ago and the experience wasn't that great. The slightest fade and the decoder would lose the signal. Also, there are precious few DRM transmitters that can be heard in North America. The future of DRM is pretty murky. As you can guess from my description, it's also quite a few programs that all have to be set up correctly, none of them being really simple. AB2TC - Knut Brian Machesney wrote: > > Now that I'm enjoying SWLing again, I'd like to try to "decode" Digital > Radio Mondiale. Has anyone succeeded in doing this without buying a > purpose-built DRM receiver? > > -- > 73 -- Brian -- K1LI > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > -- View this message in context: http://n2.nabble.com/K3-DRM-listening-tp4152458p4153569.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Thanks Frank! 73 Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html http://groups.google.com/group/tcg1?hl=en Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3/100 #1875 --- On Fri, 12/11/09, w4nhj [via Elecraft] wrote: > From: w4nhj [via Elecraft] > Subject: Re: 150 watt "boots" for 160m > To: "Julius Fazekas n2wn" > Date: Friday, December 11, 2009, 2:30 PM > > > Communications Concepts can help. > www.communication-concepts.com/ > > > Frank - W4NHJ > > > > Julius > Fazekas n2wn wrote: > Wondering if anyone has a > suggestion of a solid state amp or "pushing" the > K3 PA to obtain 150 watts out on 160m? > > > A kit or HB would be fine... > > > 73, > > Julius > > n2wn > > > > > > > View message @ > http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153253.html > > > To unsubscribe from 150 watt "boots" for 160m, click > here. > > > - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3#1875 -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153559.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m - Tubes
Tubes! We don't need no stinkin' Tubes! I always thougt the Elecraft Reflector was almost like a homebrew reflector. I for one, am getting back into tube technology ... refurbishing older equipment. It is is quite fun and delightful. Also, I can slop solder and smell smoke. The Drake 2B is sweet So, with that said...how about 4 X 807s Let see...100ma each ... that would be 400 ma at 600 volts...240 watts input65% efficient156 watts. Close enoough. Lee - K0WA :>) Hi Lee, Yes, kinda reluctant to juice the radio, no need to fry the PA. I was thinking well under $700 hihi. Thought I had seen some 200W kits offered a while back but couldn't find them again. They may not go as low as 160 either. Trying to stay away from tubes since I got rid of most of my related junk. We'll see, if nothing sounds viable without a headache, I'll stick with what I have... Happy Holidays and see ya on the bands! 73, Julius Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html http://groups.google.com/group/tcg1?hl=en Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3/100 #1875 --- On Fri, 12/11/09, Lee Buller wrote: > From: Lee Buller > Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m > To: "Julius Fazekas n2wn" > Date: Friday, December 11, 2009, 12:52 PM > > In all seriousness > > I don't think I would "juice" the K3 to get > 150 watts out. Some did that with the K2 but I am a > little reluctant to do that with a $2K+ rig. > > Of course your mileage may varybut find a cheap > amp. Like an AL80A. You can get them for around > 700 dollars on Ebay. I did that ran the amp at > 150 watts in the NAQP contests But, then they > changed the rule to 100 watts. > > Or find an old HW101...jack the voltage up on the plates > and screensdrive it hard and you might make the 6146s > produce 150 watts for a contest. There is a gentleman > somewhere on the net that has done that. > > Of course...your definition of cheap may be different that > mine. > > Lee > K0WA > > > In our > day and age it seems that Common Sense is in short supply. > If you don't have any Common Sense - get some Common > Sense and use it. If you can't find any Common Sense, > ask for help from somebody who has some Common Sense. Is > Common Sense divine? > > Common Sense is the image of the Creator expressing > revealed truth in my mind. - J. Wolf > > > > --- On Fri, 12/11/09, Julius Fazekas n2wn > wrote: > > From: Julius Fazekas n2wn > Subject: [Elecraft] [K3] 150 watt "boots" for > 160m > To: elecraft@mailman.qth.net > Date: Friday, December 11, 2009, 9:44 AM > > > Wondering if anyone has a suggestion of a solid state amp > or "pushing" the K3 > PA to obtain 150 watts out on 160m? > > A kit or HB > would be fine... > > 73, > Julius > n2wn > > - > Julius Fazekas > N2WN > > Tennessee Contest Group > http://www.k4ro.net/tcg/index.html > > Tennessee QSO Party > http://www.tnqp.org/ > > Elecraft K2/100 #4455 > Elecraft K3/100 #366 > Elecraft K3 #1875 > -- > View this message in context: > http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4151943.html > Sent from the [K3] mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Fw: [K3] 150 watt "boots" for 160m
1.7 dB of extra bullets when you are going to a gunfight (contest, dx pile-ups, weak signal dxing) could make a difference. It will not make much if you are just going Sunday afternoon plinking (rag chewing). Lots of contesters and dxers spend many dB of extra money to get 1.7 dB of improvement in tx or rx - let me know what you find out, Julius - I need more drive for my AL-1200. Neill - Original Message - From: "Guy Olinger K2AV" To: "elecraft" Sent: Friday, December 11, 2009 2:11 PM Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m > >From 100 to 150, for 1.7 dB, when Bell Laboratories research (with > huge capital investment and telephone maintenance dollars on the line) > determined that 3 dB was the signal strength change discernment for > most people? > > It's amazing how these slim changes hold on with hams and spend their > money, when tons of research demonstrates the difference is not > perceived. We FEEL GOOD running 150 instead of 100, running 1500 > instead of 1200. Never hear it on the other end. > > The REAL TX dB is between our ears, when to transmit, where to > transmit and what to transmit. They who have the full 27 db allocation > there can work the pileups QRP. > > 73, Guy. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
On 160, you could try a class-E amplifier; you're probably not going to use anything but CW. --- On Fri, 12/11/09, Edward Dickinson, III wrote: > From: Edward Dickinson, III > Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m > To: elecraft@mailman.qth.net > Date: Friday, December 11, 2009, 9:55 AM > > I am reminded of the recent sale item from Elecraft. > The 2010 ARRL Handbook > is to have a 250 Watt HF amp design in it. One ought > to be able to drop the > K3 output appropriately to drive it to 150 Watts. > > > 73, > > Dick - KA5KKT > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m - the competitive edge
This may be true and probably is...but as one other fellow said1 DB is the difference between hear or not. Now...in contesting...that is pointsor even a multipler which could be many more points per contest. So, I appreciate the comment here...is is the competitive edge that is driving this thread. Lee K0WA --- On Fri, 12/11/09, Guy Olinger K2AV wrote: From: Guy Olinger K2AV Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m To: "elecraft" Date: Friday, December 11, 2009, 1:11 PM >From 100 to 150, for 1.7 dB, when Bell Laboratories research (with huge capital investment and telephone maintenance dollars on the line) determined that 3 dB was the signal strength change discernment for most people? It's amazing how these slim changes hold on with hams and spend their money, when tons of research demonstrates the difference is not perceived. We FEEL GOOD running 150 instead of 100, running 1500 instead of 1200. Never hear it on the other end. The REAL TX dB is between our ears, when to transmit, where to transmit and what to transmit. They who have the full 27 db allocation there can work the pileups QRP. 73, Guy. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Diversity use with QRN
I have a "QRM Eliminator" by SEM (a UK firm long gone) awaiting repair and I wondered how best to use this in conjunction with diversity. It is a phasing unit requiring another small (probably vertical) antenna to pick up local QRN, which is theoretically cancelled using its 3 controls. I think there are other similar products on the market. I'm thinking to combine this with another rx antenna which would then feed the rx port of the second rx on the K3. It needs a little thought. David G3UNA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
A good article on the value of a DB is an old timer in QST I think it was, Station design for DX I guarantee you that if you improve your station by 1Db or more you will tell the difference, have done it and it works. A whole new layer of DX opens up for every DB you can find. I see comments all the time that lossy feedlines or matching or this and that only costs a couple DB and you cant hear that. Amen I dont hear you in the pile ups. There is an audiophile site somewhere on the web that lets you adjust volume in DB steps, you may be quite surprised at what your ear can detect in DB changes. If a Db or two makes no difference than buying a K3 that has better specs by a DB or so should also make no difference. I encourage others to not worry about loss of a few DB, makes for more DX for those who do. Merv KH7C > Guy Olinger K2AV wrote: > >> >From 100 to 150, for 1.7 dB, when Bell Laboratories research (with >> huge capital investment and telephone maintenance dollars on the line) >> determined that 3 dB was the signal strength change discernment for >> most people? >> >> It's amazing how these slim changes hold on with hams and spend their >> money, when tons of research demonstrates the difference is not >> perceived. We FEEL GOOD running 150 instead of 100, running 1500 >> instead of 1200. Never hear it on the other end. >> > > We hear this over and over, but it is very misleading. It's true that if you > have a good > readable signal, a difference of a db or two is not noticeable. But when the > signal is > right at the noise level or QSBing in and out of it, even one db makes a > difference. As > N2WN said, it can be the difference between "?" and "N2?" -- or even between > the guy CQing > again and "?". > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PSK31
I will second (er, fourth...?) the props for CocoaModem. I still opt for Windows for my digital activities simply because I have an old Dell box that I was able to dedicate to the task and I just love HRD/ DM780 as a complete package for logging, rig control and digital ops. But I downloaded CocoaModem to give it a try and upon launching it for the first time I found it decoding PSK31 signals 100% equal to DM780 without even connecting it to the Mac -- it was picking up the audio from my speakers through the mic input and matching DM780 output word for word! Also: if you have a newer Intel-based Mac, you might consider running HRD/DM780 or any other Windows digital modes app on the Mac using Parallels or VMWare Fusion. I had HRD/DM780 running on my MacBook Pro under Parallels and it worked perfectly. I only opted for a dedicated PC because, A) I had one available, and B) my MacBook Pro is my work machine and I don't want it tied up during the day for non-wealth generating purposes. 73, Paul WW2PT On Dec 11, 2009, at 11:42 AM, Richard Thorpe wrote: > I'm using "MultiMode" with my Mac and K3 to decode PSK31. I cannot > get enough level out of the "stereo out" on the K3 to get a good > decode, even though I adjust in software on the K3. What am I doing > wrong? The Mackintosh platform is limited when it comes to radio > software. Are there any other choices? > > R Thorpe KD6LAZ > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Guy Olinger K2AV wrote: >>From 100 to 150, for 1.7 dB, when Bell Laboratories research (with > huge capital investment and telephone maintenance dollars on the line) > determined that 3 dB was the signal strength change discernment for > most people? > > It's amazing how these slim changes hold on with hams and spend their > money, when tons of research demonstrates the difference is not > perceived. We FEEL GOOD running 150 instead of 100, running 1500 > instead of 1200. Never hear it on the other end. We hear this over and over, but it is very misleading. It's true that if you have a good readable signal, a difference of a db or two is not noticeable. But when the signal is right at the noise level or QSBing in and out of it, even one db makes a difference. As N2WN said, it can be the difference between "?" and "N2?" -- or even between the guy CQing again and "?". -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
Communications Concepts can help. www.communication-concepts.com/ Frank - W4NHJ Julius Fazekas n2wn wrote: > > Wondering if anyone has a suggestion of a solid state amp or "pushing" the > K3 PA to obtain 150 watts out on 160m? > > A kit or HB would be fine... > > 73, > Julius > n2wn > -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4153253.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PSK31
Hi Richard, Others have already mentioned cocoaModem. Fldigi also runs on the Mac. Fldigi supports a few less commonly used modes that cocoaModem doesn't (Olivia, MT-63, Thor, Throb). cocoaModem supports HF-FAX and SITOR-B reception which fldigi doesn't. I find Fldigi easier to use for day-to-day QSOs. I think cocoaModem sometimes does a better job decoding weak signals. Fldigi doesn't look very "Mac-like" since it's a port of a Linux application, whereas cocoaModem is a native Cocoa app and so looks right at home on the Mac. Give both a try and see which one you prefer. http://www.w1hkj.com/Fldigi.html 73 -- Joe KB8AP On Dec 11, 2009, at 9:42 AM, Richard Thorpe wrote: > The Mackintosh platform is limited when it comes to radio > software. Are there any other choices? > > R Thorpe KD6LAZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Is the K2 old technology?
Paul... I have owned a K2 for about three years now. It replaced an FT990. Is is fully loaded [NB, SSB, DSP & AMP]. I'm not an expert on "state of the art," but do have some subjective comments. It's a great little rig. I'm completely pleased with it. I bought it specifically for its performance and the "build it yourself" mojo. Even if I never used it, the fun of building it was super. I tinker around with it constantly, which, aside from menu programing in the K3, one can't really do with the K3 at the hardware level. It clearly doesn't have lots of the bells and whistles of the K3, and if such is important to you, or you have some specific need/interest, then the K3 may be what you want. But, the raw receiver in the K2 is almost as good as it gets; the general operation is certainly acceptable; and, with add-ons it pretty much does whatever I ask it to do. I'd buy a K3 if money were no object, but for me the investment of another $2K plus wouldn't result in a corresponding increment in performance. Hope you find the right choice for you. Either way, Elecraft is the company of choice, and in that respect you won't/can't go wrong with either rig. Happy Holidays. ...robert Paul Huff wrote: > I think that I have finally saved up enough money to purchase my long-desired > K2. But there are two thoughts that cause me to hesitate: > > First, is the K2 "long in the tooth"? Am I spending a significant amount of > money on technology that is on it's way to being obsolete? > > Second, I will only be able to purchase a basic K2 and plan on adding the > extras to it over the next couple of years. Will Elecraft still be offering > those products for that length of time? > > I guess that I will ask that 2nd question directly to Elecraft, but any > opinions > on the first question would be appreciated. > > Thanks in advance and 73, > Paul - N8XMS > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- Robert G. Strickland, PhD, ABPH - KE2WY rc...@verizon.net Syracuse, New York, USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
>From 100 to 150, for 1.7 dB, when Bell Laboratories research (with huge capital investment and telephone maintenance dollars on the line) determined that 3 dB was the signal strength change discernment for most people? It's amazing how these slim changes hold on with hams and spend their money, when tons of research demonstrates the difference is not perceived. We FEEL GOOD running 150 instead of 100, running 1500 instead of 1200. Never hear it on the other end. The REAL TX dB is between our ears, when to transmit, where to transmit and what to transmit. They who have the full 27 db allocation there can work the pileups QRP. 73, Guy. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Diversity use with QRN
Jorge, When there is QRN I find that Beverage is the best antenna to use, even though the Inverted-L is better at times. Having both available is great. I have configured the inner knob AF control of the K3 to control BOTH receivers and the outer AF knob to control the audio balance between the main and sub receivers. This can be set up with one of the CONFG settings. So if you are in the diversity mode and one receiver sounds better, you can turn the balance control to get audio to the receiver with the best signal. Or if you want to only use the main receiver and antenna, simply tap the SUB button to quickly get out of the diversity mode. This morning on 160M I heard and worked R1FJM for country #212 with 100 Watts. The combination of the NE/SW Beverage and the Inverted-L made for Q5 copy as the signal faded up and down between my ears with the K3 in the diversity mode. I also heard JT1CO for the first time on the Topband but could only copy Chak on the Inverted-L. I plan to add a N/S Beverage to my collection of antennas. I hope that this helps answer your question. 73 de Rich - K1HTV = = = Date: Fri, 11 Dec 2009 11:45:15 -0200 From: "Jorge Diez - CX6VM" Subject: Re: [Elecraft] K3 in diversity mode To: Message-ID: <002701ca7a68$2e6726e0$8b3574...@jorge@adinet.com.uy> Content-Type: text/plain;charset="us-ascii" Hello, I read very positive information about diversity mode, that you can use two different polarization antennas to better performance, or just the TX antenna and a beverage, right? But I have a doubt. What is the field experience when using the main TX antenna and a beverage and you have a high QRN? Still useful the diversity mode or just is better to RX ONLY in the beverage? Thanks! 73, Jorge __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PSK31
You should be able to increase the input gain in your soundcard in order to make Multimode decode correctly. The K3 has more than adequate level even with Line Out = 10 to drive most quality soundcards at input gain around 50%. In any case, cocoaModem is a much superior digital application - and it's free. The author is among the few who really understand the behavior of digital signals on HF/MF paths. See: http://homepage.mac.com/chen/w7ay/cocoaModem/index.html 73, ... Joe, W4TV > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Thorpe > Sent: Friday, December 11, 2009 12:42 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] PSK31 > > > I'm using "MultiMode" with my Mac and K3 to decode PSK31. I cannot > get enough level out of the "stereo out" on the K3 to get a good > decode, even though I adjust in software on the K3. What am I doing > wrong? The Mackintosh platform is limited when it comes to radio > software. Are there any other choices? > > R Thorpe KD6LAZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KX1] KX1 ATU problem
Well I figured out my problem (operator error). The ATU was in Calibrate mode and not Tune mode. So it is working now. However, when I try to tune 30m the power jumps straight to 6.3W (!) and doesn't fluctuate like the power reading does on other bands (40m jumps from around 4.6-5.1 watts with a 12v supply) Not to mention that the ATU gives me a somewhat poor SWR (1:2.8) on 30m even when it used to match relatively well (<1:2). I don't currently use 30m so it's not a big deal to me but something doesn't seem right...? Luke <>< KD0FIN KD0FIN wrote: > > So I just installed the KXB3080 and completed the 2 resistor "power mod" > but now my ATU doesn't seem to be working. It gives me power and SWR > reading when I use the "tune" function but I don't hear the relays > clicking and it isn't matching anything anymore. It might be unrelated but > also it seems to be very hard to find signals as well. I could hear a > couple faint ones on 80m but everything else seemed dead. The radio was > working as normally as I could tell after installing the KXB3080, and I > don't think I could have screwed up the the 2 resistors enough to cause > any problems? > -- View this message in context: http://n2.nabble.com/KX1-ATU-problem-tp4149575p4152762.html Sent from the [KX1] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PSK31
I'll second that! Cocoamodem is the best decoder solution out there IMO.. David, W4SMT --- On Fri, 12/11/09, WA6L wrote: > From: WA6L > Subject: Re: [Elecraft] PSK31 > To: elecraft@mailman.qth.net > Date: Friday, December 11, 2009, 12:53 PM > > > Though I am not sure it will solve your problem, you may > want to try > Cocoamodem software. IMHO it is superior to MultiMode > and is free. > > http://homepage.mac.com/chen/w7ay/cocoaModem/index.html > > > > > I'm using "MultiMode" with my Mac and K3 to decode > PSK31. I cannot > get enough level out of the "stereo out" on the K3 to get a > good > decode, even though I adjust in software on the K3. > What am I doing > wrong? The Mackintosh platform is limited when it > comes to radio > software. Are there any other choices? > > R Thorpe KD6LAZ > > -- > View this message in context: > http://n2.nabble.com/PSK31-tp4152628p4152682.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
I am reminded of the recent sale item from Elecraft. The 2010 ARRL Handbook is to have a 250 Watt HF amp design in it. One ought to be able to drop the K3 output appropriately to drive it to 150 Watts. 73, Dick - KA5KKT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PSK31
Though I am not sure it will solve your problem, you may want to try Cocoamodem software. IMHO it is superior to MultiMode and is free. http://homepage.mac.com/chen/w7ay/cocoaModem/index.html I'm using "MultiMode" with my Mac and K3 to decode PSK31. I cannot get enough level out of the "stereo out" on the K3 to get a good decode, even though I adjust in software on the K3. What am I doing wrong? The Mackintosh platform is limited when it comes to radio software. Are there any other choices? R Thorpe KD6LAZ -- View this message in context: http://n2.nabble.com/PSK31-tp4152628p4152682.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
In all seriousness I don't think I would "juice" the K3 to get 150 watts out. Some did that with the K2 but I am a little reluctant to do that with a $2K+ rig. Of course your mileage may varybut find a cheap amp. Like an AL80A. You can get them for around 700 dollars on Ebay. I did that ran the amp at 150 watts in the NAQP contests But, then they changed the rule to 100 watts. Or find an old HW101...jack the voltage up on the plates and screensdrive it hard and you might make the 6146s produce 150 watts for a contest. There is a gentleman somewhere on the net that has done that. Of course...your definition of cheap may be different that mine. Lee K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - J. Wolf --- On Fri, 12/11/09, Julius Fazekas n2wn wrote: From: Julius Fazekas n2wn Subject: [Elecraft] [K3] 150 watt "boots" for 160m To: elecraft@mailman.qth.net Date: Friday, December 11, 2009, 9:44 AM Wondering if anyone has a suggestion of a solid state amp or "pushing" the K3 PA to obtain 150 watts out on 160m? A kit or HB would be fine... 73, Julius n2wn - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3 #1875 -- View this message in context: http://n2.nabble.com/150-watt-boots-for-160m-tp4151943p4151943.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] PSK31
I'm using "MultiMode" with my Mac and K3 to decode PSK31. I cannot get enough level out of the "stereo out" on the K3 to get a good decode, even though I adjust in software on the K3. What am I doing wrong? The Mackintosh platform is limited when it comes to radio software. Are there any other choices? R Thorpe KD6LAZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] W2 Questions
Jack, At $700 I will stick with my W7ZOI power meter with its 40 dB power tap and my Tandem Match! I have calibration data that Bob Friess provided on my Power meter from 1 MHz to 500 MHz (and ham band intervals in between). The Tandem Match tracks that data quite well in its basic metering, but is limited to 30 MHz with the couplers available. I really like the Tandem Match for general purposes, but the parallax from the analog meters must be taken into consideration too (op amp accuracy is a great thing indeed, nothing like analog computers using precision resistors - but then I am partly "old school"). That is certainly good enough to give me +/- 5% power measurement accuracy from 1 MHz to 500 MHz, and that is more than I require at the moment. The world of Power measurement is getting better, but it still is not down to really precise accuracy, no matter what the instrument. Thanks for the information. Perhaps one day when the ham budget allows and I have a purpose for it, I will make the investment. 73, Don W3FPR Jack Smith wrote: > Don: > > All I've done is read the spec sheet, but Minicircuits has a > relatively new sensitive termination wattmeter with USB interface for > a quite reasonable price, at least by Agilent standards. > http://www.minicircuits.com/pdfs/PWR-6G+.pdf -- it's a "virtual" > instrument as it consists of the sensor and a USB port to plug into > your computer. At $700, it isn't much more than you might pay for a > single used Agilent sensor in decent shape and calibration. > > Depending on frequency and power range, the "typical" error runs from > +/- 0.1 db to +/- 0.35 dB. power range from -30 to +20 dBm, frequency > range 1 MHz - 6 GHz. > > If I didn't already have a 437B and 8481A and 8482A sensors, I would > give the Minicircuits product serious consideration. > > Jack K8ZOA > > > Don Wilhelm wrote: >> Phil, >> >> The W2 wattmeter is similar in its detector accuracy to the Tandem >> Match (by John Grebenkemper KI6WX) in that its accuracy depends on >> matching the detector diodes with the compensation diodes. >> The "Gold Standard" of power measuring devices is the HP436A >> wattmeter, and it has a stated accuracy of +/-0.05 dB. That amounts >> to a +/-1.16% accuracy - you are not going to get much better than >> that lab instrument in an amateur grade instrument. >> The Tandem Match that KI6WX built tracks the HP436A within +/- 0.5 dB >> over a range of 10 mW to 100W (your 11.2% error), and also tracks the >> HP436A within +/-0.1 dB over a 1W to 100W range for a 2.33 % difference. >> >> Power measurement is tough on accuracy as expressed in percentage. >> Most ham grade wattmeters specify 20% of full scale. The Tandem >> Match and the W2 wattmeter are percentages of actual readings. >> >> Since power is normally best expressed in dB (because the apparent >> signal strength is related in dB), a specification of 0.5 dB is not >> bad at all. >> BTW - I believe that is the accuracy of the power reported using the >> PC link. The resolution of the LED scale is not adequate to indicate >> the degree of precision available. >> >> The directional coupler will have frequency dependencies as well as >> accuracy implications. >> >> 73, >> Don W3FPR >> >> Phil Hystad wrote: >> >>> A few questions about the W2 meter: >>> >>> 1. The posted accuracy is +- 0.5 dB which I calculate as about +- >>> 12 %. Is this full scale accuracy and if so is half scale possibly >>> more accurate or is this the most accurate the meter is likely to >>> be. I am not even sure if it makes a difference for full scale or >>> half scale for a digital meter so that part of my question may be moot. >>> >>> 2. What does it take to achieve an accuracy better then 5 % (for >>> example), and is it possible to achieve an accuracy of 1 % or >>> better? I am curious as to where the money needs to be spent in >>> achieving such accuracy. Is it in the directional coupler? >>> >>> 3. I am thinking that the company that can build the best receiver >>> on the market (the K3) can also build the best meter. So, would >>> Elecraft principles consider a future super-accurate, best on the >>> planet, amateur radio RF/SWR power meter? Oh, I think a current >>> meter would be cool too. >>> >>> And, I know that having meter accuracy is of little importance in >>> ham radio but there is some kind of deep seated quirk in me that >>> wants accuracy just for the heck of it. Certainly 5 % is >>> achievable, right? >>> >>> 73, >>> phil, K7PEH >>> >>> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> > -
[Elecraft] [KX1] KX1 ATU problem
So I just installed the KXB3080 and completed the 2 resistor "power mod" but now my ATU doesn't seem to be working. It gives me power and SWR reading when I use the "tune" function but I don't hear the relays clicking and it isn't matching anything anymore. It might be unrelated but also it seems to be very hard to find signals as well. I could hear a couple faint ones on 80m but everything else seemed dead. The radio was working as normally as I could tell after installing the KXB3080, and I don't think I could have screwed up the the 2 resistors enough to cause any problems? -- View this message in context: http://n2.nabble.com/KX1-ATU-problem-tp4149575p4149575.html Sent from the [KX1] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KX1] wanted: KXB30
Still looking for the KXB30?. auric...@yaho.com Casey-3 wrote: > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > -- View this message in context: http://n2.nabble.com/wanted-KXB30-tp3803665p4149564.html Sent from the [KX1] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 150 watt "boots" for 160m
>> >> Wondering if anyone has a suggestion of a solid state amp or "pushing" >> the K3 PA to obtain 150 watts out on 160m? Why can't you just hook up 120 volts AC as your power source instead of that puny little 12 volts DC thing. Not only would you get 10 times the voltage which according to Ohm's Law gives you 100 times the power (thus, legal limit plus) but you also are using 60 Hz AC. Thus, you already have a kick start on that RF frequency. Why start out at DC when you can do so much better with AC. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3: DRM listening?
Now that I'm enjoying SWLing again, I'd like to try to "decode" Digital Radio Mondiale. Has anyone succeeded in doing this without buying a purpose-built DRM receiver? -- 73 -- Brian -- K1LI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Introdution.
Hello all, my name is David Quental, calls CT1DRB, OK8RB, CU3HQ and now T6AG. Some days ago I bought a new K3 to me, however just next April will see it. At that time I will assemble. Now I am in Afghanistan using call T6AG, it seems for states propagation is not so good and due to diferent localtimes it is not easy to have qso's with states. Anyway, I will be here until April and for sure they will have enough time to work States. Best regards and till next email. T6AG David Quental __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [MM] W2 Questions [pending firmware changes and software applications]
Very interesting, indeed! To all worrying about power consumption of the W2 (when connected to the K3's 12 V output), it hardly ever reaches 500 mA with LED brightness set to maximum - and some 100 mA when set to minimum (which IMHO is more than bright enough). We'll be making a number of improvements to W2 firmware in future releases (starting in January). Firmware updates are very easy to do on the W2, and the required serial cable is supplied. - Richard - HB9ANM -- View this message in context: http://n2.nabble.com/Re-W2-Questions-pending-firmware-changes-and-software-applications-tp4143406p4152397.html Sent from the [MM] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Memories
Agree with having a Label field with each memory location -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lance Collister Sent: Friday, December 11, 2009 11:45 AM To: df...@yahoo.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Memories David Fleming wrote: > I'm working on software that will create and store an unlimited number of > computer-based memories. I'm currently saving only Frequency and Mode. What > other parameters should be included in each 'Memory'?? > > tnx, > > David, W4SMT __ > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email list: > http://www.qsl.net/donate.html > > Hello David, For those of us who use the K3 on 6m, we want to be able to scan frequencies below 6m for "propagation indicators". It would be very helpful to be able to enter in 100 or more "beacon" frequencies from an EXCEL spreadsheet or some other data base into your program so that an updated and ordered list of frequencies could be added easily to the K3. The only other information besides frequency and mode that we would need would be a text field to identify each of the frequencies (ie "ZL Video", "SA Pager", etc.) GL!! VY 73, Lance -- Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX) P.O. Box 73 Frenchtown, MT 59834 USA QTH: DN27UB TEL: (406) 626-5728 URL: http://www.bigskyspaces.com/w7gj 2m DXCC #11, 6m DXCC #815 Interested in 6m EME? Ask me about subscribing to the Magic Band EME email! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.426 / Virus Database: 270.14.102/2556 - Release Date: 12/11/09 10:06:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] K3 Demo in NH
I am interested in buying a K3 but I would really like to test a K3 out before I commit to a purchase. I was wondering if there any K3 owners in NH that wouldn't showing me a demonstration of the radio and maybe operate it for a few minutes. I have read all of the reviews and specifications and I think it is time to see the radio in person. Please email me if you can help me. my email address is natesmallnos...@hotmail.com without the NOSPAM. Thank you, Nate -- View this message in context: http://n2.nabble.com/K3-Demo-in-NH-tp4152335p4152335.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Memories
David Fleming wrote: > I'm working on software that will create and store an unlimited number of > computer-based memories. I'm currently saving only Frequency and Mode. What > other parameters should be included in each 'Memory'?? > > tnx, > > David, W4SMT __ > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email list: > http://www.qsl.net/donate.html > > Hello David, For those of us who use the K3 on 6m, we want to be able to scan frequencies below 6m for "propagation indicators". It would be very helpful to be able to enter in 100 or more "beacon" frequencies from an EXCEL spreadsheet or some other data base into your program so that an updated and ordered list of frequencies could be added easily to the K3. The only other information besides frequency and mode that we would need would be a text field to identify each of the frequencies (ie "ZL Video", "SA Pager", etc.) GL!! VY 73, Lance -- Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX) P.O. Box 73 Frenchtown, MT 59834 USA QTH: DN27UB TEL: (406) 626-5728 URL: http://www.bigskyspaces.com/w7gj 2m DXCC #11, 6m DXCC #815 Interested in 6m EME? Ask me about subscribing to the Magic Band EME email! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Ethernet to Serial Converter
On Thu, 10 Dec 2009 19:00:52 -0800, Lyle Johnson wrote: >See < URL:http://new.remoterig.com/en/index.htm > >Their solution includes data and audio over Ethernet. They also mention >support for CW. K6VVA has been using this product for his remote base on a remote mountaintop for contesting for several months. He's been quite pleased, at least up to now. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Memories
I probably should point out that KComm has a feature called "Shortcuts" that allow you to save the current frequency and mode in a list on the right. You can then execute (recall) any shortcut with a double-click. It doesn't save the power level, but as each shortcut is stored as a sequence of K3 software control commands you can easily edit it to add a PC command, e.g. PC0401; would set the power to 40W. You can also edit the names of the shortcuts, change the order, export groups of shortcuts to a file, import them from a file. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/Memories-tp4151972p4152177.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
