Re: [Elecraft] Interesting Stuff At Dayton
David Yarnes wrote: Hi All, Something that I saw at Dayton may be of interest to Elecraft owners--particularly K3, and possibly K2 folks. Jay Bromley and I visited with Larry Phipps at his booth for a while. Larry has several very innovative items that he sells, including probably the most unique wattmeter/SWR meter you can find anywhere (the LP-100A). What caught our attention was Larry's new panadapter for the K3. He's contemplating doing one for the K2 as well. Anyway, this new gadget (I hope I don't offend Larry by calling it a gadget) is very impressive. You should really go to his website to get the full details, but believe me, it is really a slick piece of engineering. I'm not fully familiar with the Icom bandscope on it's higher end rigs, but I think this product from Larry will rival or exceed what you find there. Additionally, it really constitutes a 2nd receiver, which opens up all sorts of possibilities. For example, maybe if you get this accessory you really don't get enough more with the Elecraft 2nd RX Can't really say that for sure, but it's pretty clear that Larry has something that might give one pause as to whether or not they need something over and above that. Anyway, the demo Larry gave us was most impressive. I suggest you keep one eye on his website for more details. In any event, the panadapter is fairly reasonable, and is available in either kit form or fully assembled. Larry says building it is not very difficult or time consuming. By all means, check all of this out. It appears to me that it would be a second receiver only with the aid of a PC, sound card and SDR software. What I would like to see is an external bandscope that does not require a computer. Either it would be completely self contained, or it would use an inexpensive portable LCD TV for its display. Perhaps Elecraft will come up with something like this in the future? - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/Interesting-Stuff-At-Dayton-tp17308788p17313629.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] a real bandscope
If u would like a real bandscope with a completely real time oscilloscope-like trace (as well as a xmas tree), get the SM-220 or SM-230 from Kenwood. Probably no longer made, they mate with the TS-950 and its juniors and really work even when u are turning the tuning knob. Likely Kenwood lovers will not part with theirs, so gud luck on finding one. No computer needed at all. This OLD TECHNOLOGY remains superior to anything I've seen in the new market today. Too bad it must mate with such a medium-performing rcvr. 73 Charles Harpole [EMAIL PROTECTED] Date: Mon, 19 May 2008 01:39:57 -0700 From: [EMAIL PROTECTED] To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Interesting Stuff At Dayton David Yarnes wrote: Hi All, Something that I saw at Dayton may be of interest to Elecraft owners--particularly K3, and possibly K2 folks. Jay Bromley and I visited with Larry Phipps at his booth for a while. Larry has several very innovative items that he sells, including probably the most unique wattmeter/SWR meter you can find anywhere (the LP-100A). What caught our attention was Larry's new panadapter for the K3. He's contemplating doing one for the K2 as well. Anyway, this new gadget (I hope I don't offend Larry by calling it a gadget) is very impressive. You should really go to his website to get the full details, but believe me, it is really a slick piece of engineering. I'm not fully familiar with the Icom bandscope on it's higher end rigs, but I think this product from Larry will rival or exceed what you find there. Additionally, it really constitutes a 2nd receiver, which opens up all sorts of possibilities. For example, maybe if you get this accessory you really don't get enough more with the Elecraft 2nd RX Can't really say that for sure, but it's pretty clear that Larry has something that might give one pause as to whether or not they need something over and above that. Anyway, the demo Larry gave us was most impressive. I suggest you keep one eye on his website for more details. In any event, the panadapter is fairly reasonable, and is available in either kit form or fully assembled. Larry says building it is not very difficult or time consuming. By all means, check all of this out. It appears to me that it would be a second receiver only with the aid of a PC, sound card and SDR software. What I would like to see is an external bandscope that does not require a computer. Either it would be completely self contained, or it would use an inexpensive portable LCD TV for its display. Perhaps Elecraft will come up with something like this in the future? - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/Interesting-Stuff-At-Dayton-tp17308788p17313629.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Help with cheap headset and K2
hi Bill, I have tried a Plantronics Computer Headset in the past with my K2. I made an adapter like you did but with the internal 5V bias. Audio reports were worse than with the dynamic Kenwood microphone I used before. I tried this special microphone because G4ILO recommended it on his homepage. (http://www.g4ilo.com/k2_headset.html). I had hoped that I could make better use of the VOX in the K2, but it was not good enough for my low voice. In the meantime I connected it to the K3 and listened to myself and now I know why the reports were bad. The frequency response of the microphone is not good for this purpose. In the K3 I could compensate it with the equalizer, but together with the K2 you are probably lost. Now I am waiting for the Sennheiser PC 150 now, maybe this is better. My usual headset is the Heil Proset with HC5 element. The reason why I am looking for an alternative is the weight of the Heil headset and the earpads make a pressure on the arms of my glasses and this hurts after some time. 73! de Werner OE9FWV On 18 May 2008 at 16:06, nz0t wrote: Just for grins I bought a cheap Cyber Acoustics computer headset to use with my K3 when it arrives. Others have said they got good reports with their K3 and this headset which uses an electret mic and a 3.5MM stereo mini plug. Not wanting to cut off the plug which fits into the back of the K3 I made up an adapter for my K2 using an inline stereo jack, an 8 pin mike plug and a 9 volt battery through a 5K resistor to power the mic. My K2 is wired for the Kenwood mics and I don't want to power the mic from the rig. I wired the grounds to the base of the plug, 9V DC through the 5K resistor to the middle and the mic positive to the tip. It works but my reports with the K2 have not been very good. I also made up an adapter for my Drake TR7 and reports on that rig are fine. Am I doing something wrong with the K2? I know little about electret mics and maybe I am using too much voltage or the wrong resistor. Any help would be greatly appreciated. If I can't get it to work the headset was only about $15 shipped so no big deal. -- Genetic Engineering Splits Scientists PGP-Key: http://www.qsl.net/oe9fwv/furlan.asc Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KX-1 20 Meter Deafness
Mike, While my pride as a builder says, No way! you are probably right and I'll probably have to rebuild that board. To paraphrase a quote: We hates it Mr. Baggins... Regards, kurtt Kurt Pawlikowski, AKA WB9FMC The Pinrod Corporation [EMAIL PROTECTED] (773) 284-9500 http://pinrod.com Mike wrote: Kurt, For what it's worth, when I built my KX-1 I had very similar problems. I wound up sending a pic of my LPF board to Don, who spotted the slightest hint of enamel insulation in one of the toroid solder joints. I had to look at it 4 times before I could even see it. Anyway, I wound up pretty much rebuilding that board and it was fine after that. It's *very* finicky. -- 73, Mike, KC0KBC -- Original message -- From: Kurt Pawlikowski [EMAIL PROTECTED] Don, I'll check the LPF board closely. As far as whether the signal increase, I believe it does. Since, when I touch it, signals I an hearing on my other receiver become apparent in the KX-1 also. And, I believe the XG-2 signal is increasing (only by ear). I say that because the increase is very noticeable: From, Is it there? to I have to turn it down. Which is quite a jump (probably 9dB). Anyway, I'll look it over more closely (maybe rebuild that board) and report back. Thanks. Regards, kurtt Kurt Pawlikowski, AKA WB9FMC The Pinrod Corporation [EMAIL PROTECTED] (773) 284-9500 http://pinrod.com Don Wilhelm wrote: Kurt, From all you have said, I would believe that the problem is in the KXB3080 low pass filter. While I agree that your continuity test indicates no apparent problem with the toroid lead tinning, check all the connections to be certain there is a bit of solder on both sides of the board - if not, view that connection with suspicion. Make certain there is no contact with the green wire from L2 to the lower connection of the red wire. The green wire must wrap around to the back side of the LPF board and can inadvertently contact the #4 termination of the wire for the red winding. The best LPF testing is visual - look for any suspicious solder connections. Yes, you will see a 17 MHz cutoff on the LPF if you measure it without regard to disconnecting it from the rest of the circuit and failing to properly terminate the filter (it is not 50 ohms at the PA transistor side, but I have not ever calculated the proper termination). Perhaps it is helpful if I tell you that the green winding is the only active portion on 40, 30 and 20 meters. The red winding is used for 80 meters and SWB band below about 6 MHz only. Caution: The sensitivity of the KX1 is not as great on 20 meters as it is on 30 or 40 meters. Bringing a finger (or antenna) close to T2 or many of the receiver tuned circuits after the LPF will normally result in an increase in receiver total output, but that is actually an increase in broadband noise - under careful measurement conditions, the desired signal strength will not increase even though the overall noise level does. Spectrogram will show that is true. 73, Don W3FPR Kurt Pawlikowski wrote: Hi, First, thanks for reading. Hopefully, it won't be boring for those lucky K3 guys and gals... CONFIGURATION KX-1, 3080 upgrade. ATU currently removed and antenna jumper installed for testing.Using XG-2 as a signal source. I have confirmed the XG-2 seems to be working about as expected with another receiver (about S-10 at 50uv and S-0 (but still in the speakers) at 1uv). SYMPTOM With normal operation, receive levels appear normal on 80 and 40 (I can make contacts), but the XG2 is not peaking the KX-1's meter (I used the XG-2 to calibrate the meter). 20 meters has always seemed deaf to me. I don't remember how well the XG-2 was received on 20 when I calibrated it. Here's the real kicker: On 20 meters, with the XG-2 attached, I hear *no* volume difference between 50 and 1uv (which means the KX-1's receiver is picking up the signal by proximity, not through the antenna connection). If I touch the RX antenna connection almost anywhere between the low-pass filter and the input of the Rx Mixer (U6, pin 1), 20 meters comes way up (from nothing to receiving moderately weak signals and noise). Touching the RX antenna line on 80 and 40 appears to have little or no affect. Output power on 20 meters does not register full power, but I'm not sure if this is a calibration problem as I don't have an accurate power meter. Also, when I couple a grid dip meter into the RX, when tuned to 30 or 20 meters, I get a marked dip just at about 17 MHz. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page:
RE: [Elecraft] Interesting Stuff At Dayton
What I am in the process of doing is putting together the Softrock receiver, and lashing it up to a micro ITX formfactor PC. They are very small, and have the ability to use a 12V DC power input. Do a search on car computers, and there is a ton of stuff there. Mate it with an old LCD monitor that is small, or they make 6-8 inch monitors that are expensive. With this arrangement, the scope would be about the Size of any other kind of scope, and could still be used as a shack PC for rig control, logging, etc. Mike AI4NS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of G4ILO Sent: Monday, May 19, 2008 3:40 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Interesting Stuff At Dayton David Yarnes wrote: Hi All, Something that I saw at Dayton may be of interest to Elecraft owners--particularly K3, and possibly K2 folks. Jay Bromley and I visited with Larry Phipps at his booth for a while. Larry has several very innovative items that he sells, including probably the most unique wattmeter/SWR meter you can find anywhere (the LP-100A). What caught our attention was Larry's new panadapter for the K3. He's contemplating doing one for the K2 as well. Anyway, this new gadget (I hope I don't offend Larry by calling it a gadget) is very impressive. You should really go to his website to get the full details, but believe me, it is really a slick piece of engineering. I'm not fully familiar with the Icom bandscope on it's higher end rigs, but I think this product from Larry will rival or exceed what you find there. Additionally, it really constitutes a 2nd receiver, which opens up all sorts of possibilities. For example, maybe if you get this accessory you really don't get enough more with the Elecraft 2nd RX Can't really say that for sure, but it's pretty clear that Larry has something that might give one pause as to whether or not they need something over and above that. Anyway, the demo Larry gave us was most impressive. I suggest you keep one eye on his website for more details. In any event, the panadapter is fairly reasonable, and is available in either kit form or fully assembled. Larry says building it is not very difficult or time consuming. By all means, check all of this out. It appears to me that it would be a second receiver only with the aid of a PC, sound card and SDR software. What I would like to see is an external bandscope that does not require a computer. Either it would be completely self contained, or it would use an inexpensive portable LCD TV for its display. Perhaps Elecraft will come up with something like this in the future? - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/Interesting-Stuff-At-Dayton-tp17308788p17313629.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.20/1453 - Release Date: 5/18/2008 9:31 AM No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.20/1453 - Release Date: 5/18/2008 9:31 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Interesting Stuff At Dayton
Additionally, it really constitutes a 2nd receiver, which l sorts of possibilities. ... well ... it is a 2nd receiver for any signal that is available to it from the K3's IF. That means only signals that make it through the passband filter. Mark AD5SS On Sun, May 18, 2008 at 5:56 PM, [EMAIL PROTECTED] wrote: Hi All, Something that I saw at Dayton may be of interest to Elecraft owners--particularly K3, and possibly K2 folks. Jay Bromley and I visited with Larry Phipps at his booth for a while. Larry has several very innovative items that he sells, including probably the most unique wattmeter/SWR meter you can find anywhere (the LP-100A). What caught our attention was Larry's new panadapter for the K3. He's contemplating doing one for the K2 as well. Anyway, this new gadget (I hope I don't offend Larry by calling it a gadget) is very impressive. You should really go to his website to get the full details, but believe me, it is really a slick piece of engineering. I'm not fully familiar with the Icom bandscope on it's higher end rigs, but I think this product from Larry will rival or exceed what you find there. opens up al Additionally, it really constitutes a 2nd receiver, which l sorts of possibilities. For example, maybe if you get this accessory you really don't get enough more with the Elecraft 2nd RX Can't really say that for sure, but it's pretty clear that Larry has something that might give one pause as to whether or not they need something over and above that. Anyway, the demo Larry gave us was most impressive. I suggest you keep one eye on his website for more details. In any event, the panadapter is fairly reasonable, and is available in either kit form or fully assembled. Larry says building it is not very difficult or time consuming. By all means, check all of this out. Dave W7AQK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
A really really good bandscope can be had through using the SDR-IQ from RFSpace connected to the IF output of the K3. It can also record 180kHz worth of the band. Non-computer based methods are also possible, but the computer realisation is so much more versatile. The SDR-IQ software can interface directly to the K3 RS232, so you can point and click when something interesting appears on the bandscope and centre it in the K3 IF. Ah yes, and this is a bandscope that can demodulate too, all modes. Regarding Dayton and the Elecraft stand It was nice to see everyone there. There was quite a crush around Wayne and Eric whenever I passed by. They looked like they were enjoying themselves too. It was good to see the second rx working and the nice features of the firmware associated with it. I found out several interesting things about their future plans too, including the plans for a keyboard and variable bandwidth filters. Unfortunately I forgot to ask about the prospects for a linear amplifier once the K3 project settles down. Mike -- View this message in context: http://www.nabble.com/Interesting-Stuff-At-Dayton-tp17308788p17316665.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
After experiencing a few RTTY QSO's over the weekend (yes - I was on RTTY) I think I'm in need of the 1500 watt beauty as a matter of extreme urgency! I saw it in the flesh in 2005 and have been drooling over the keyboards ever since. Simon Brown, HB9DRV -- From: AD6XY - Mike [EMAIL PROTECTED] Unfortunately I forgot to ask about the prospects for a linear amplifier once the K3 project settles down. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Interesting Stuff at Dayton
AD5SS penned it is a 2nd receiver for any signal that is available to it from the K3's IF. That means only signals that make it through the passband filter. Au contrare - K3's IF output is shown on the schematics to clearly be taken before the crystal filters. 73, Barry N1EU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - Setup After Firmware Upgrade
What setup is required after firmware upgrade? Say 1.88 to 1.96b. Should we do the Low and High TX Gain Calibration? What else? Joe N9VX K3 #841 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RTTY filter for K3
Using a excessively narrow filter on RTTY is a balancing act. If the bandwidth is too narrow the tones tend to become smeared - the transitions become less easy to detect (in other words, the eye begins to close). However, narrowing the bandwidth also reduces the amount of QRM/QRN making it through the filter and to the decoder/detector. How about using a Nyquist filter? A Nyquist filter is one that results in no inter-symbol interference. One of the difficulties with RTTY is that the tone spacings are so wide. For a 45 baud FSK signal, a shift of about 30 Hz would minimize the occupied bandwidth and have no intersymbol interference. But standard practice is to use 170 Hz or 200 Hz shift. [ 200 Hz Shift is about right for 300 baud FSK, which is what we used (and why we used it) for HF packet some 25 years ago. And optimized it for common 400 Hz to 500 Hz wide CW crystal filters of that era. ] Thus, the rise of the dual tone filter (K3) and its work-alikes in various radios and demodulators, with fairly tight filters around each tone to pass it along with its significant sidebands. But the overall IF passband still needs to be wide enough to pass both tones and their sidebands. I imagine you can observe all of this on your P1. Some RTTY decoders take advantage of the tone separation and actually employ a pair of detectors, one for each tone, and use the outputs differentially to get some protection from selective fading. 170 Hz spacing is probably too close for such protection -- 850 Hz spacing would be better, but that requires an even wider IF passband... Some soundcard-based RTTY programs support really narrow shifts, but such signals are not often heard at this QTH. Maybe it is because everyone is listening and no one is calling CQ? Enjoy! Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - Setup After Firmware Upgrade
What setup is required after firmware upgrade? Say 1.88 to 1.96b. In general, check the release notes to see what's been changed. Controls or settings related to those functions might need to be altered, and in any event should be verified. In this case, MIC GAIN and VOX GAIN are probably going to be different than what you were using before. 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] WA3WSJ's PA AT QRP Hike
I've been trying to hike my next PA AT Section, but the weather has been wet and damp here. Looks like Thursday through Sunday will be nice weather here in Pennsylvania so I'm planning my next hike. I only have four more Appalachian Trail Hikes left to do and then I'll finish off PA! So listen for Kangaroo Ed, WA3WSJ hiking the AT and playing QRP. If the contest has 40m (7.030) and 20m (14.060) all tied up, look for WA3WSJ on 30m around 10.116 mhz +- qrm. I'll be using my Pimped Out KX1 and my Black Widow Vertical without a pole on the AT. Hope to hear many familiar calls while I'm out on the AT. Date: 5/22 - 5/25 Time: mornings ~ 8am-9am evenings 7pm-9pm Call: WA3WSJ QTH: PA AT near Carlisle, PA Bands: 14.060, 7.030 10.116mhz p.s. I'll be sending out my special Kangaroo Ed AT QSL Card to all who work me. Look at it on the link below. http://wa3wsj.homestead.com/index.html Life is Short So Enjoy 72, Kangaroo Ed, WA3WSJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3-Wiki
I would think it appropriate for this community to upload the K3 manuals into some Wiki and edit them as a group, always keeping it current. It would be better if there was a way to preserve formatting with photos etc, so that all one would need to do is print it to have an up to date manual. I don't know if a Wiki can do this. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 Date: Sun, 18 May 2008 13:23:53 -0700 (PDT) From: Don Rasmussen [EMAIL PROTECTED] Subject: [Elecraft] K3 - New firmware To: elecraft@mailman.qth.net elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=iso-8859-1 Since the original K3 manual was printed, many important new setups have been added to the K3 firmware that are shown and described in separate documents. There is now a wiki page that contains the cumulative options to date. Each setup option can be expanded on by users of the K3 reflector. Have a comment to make, or a helpful suggestion about any specific K3 CONFIG setting? Click on the word EDIT above the setting you can help with, then key in your callsign and your info. For example, I added a comment about the AGC-F config setting, see http://www.zerobeat.net/mediawiki/index.php/Firmware_-_revision_1.96_documen ted#AGC-F Here is the main page: http://www.zerobeat.net/mediawiki/index.php/Firmware_-_revision_1.96_documen ted The page is open for user edit at this time, please give it a look, add some expertise if you have experience with any setup and the specific results of changing the values. t u .. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
Charles Harpole wrote: If u would like a real bandscope with a completely real time oscilloscope-like trace (as well as a xmas tree), get the SM-220 or SM-230 from Kenwood. Probably no longer made, they mate with the TS-950 and its juniors and really work even when u are turning the tuning knob. Likely Kenwood lovers will not part with theirs, so gud luck on finding one. No computer needed at all. This OLD TECHNOLOGY remains superior to anything I've seen in the new market today. Too bad it must mate with such a medium-performing rcvr. I have to disagree. I had one, and the bandwidth of the filter used is so wide that it's impossible to distinguish cw signals a few kHz apart. It definitely does not provide the kind of display found, for example, on newer ICOM rigs. I too would like a standalone panadapter (bandscope, whatever) that does not require a computer, but I don't miss the Kenwood unit. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft at Dayton
You can always drive a linear amp with a QRP signal, but under FCC rules, producing more than 480 watts out with 15W in is prohibited for a type-accepted amplifier (15 db gain). Of course! Too much blood in my caffeine stream. But if there were, say, a convenient attenuator pad that could be bypassed by a motivated amateur... err, why not just build up another KPA-100 and leave it with the KPA800? No reason, really, aside from cost (which might pale in comparison to the KPA800!) Mostly, I guess, I hope that any such amp will be as well integrated with the K2 as the K3. 73 de chris K6DBG -- View this message in context: http://www.nabble.com/K3---New-firmware-tp17307418p17317662.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
I must agree Vic. That Kenwood SM-2xx is a total joke. There is no way to use it for finding signals. How one could consider it superior is beyond me. And yes...I had one...worthless. Steve Ellington [EMAIL PROTECTED] - Original Message - From: Vic K2VCO [EMAIL PROTECTED] To: Elecraft Reflector elecraft@mailman.qth.net Sent: Monday, May 19, 2008 11:10 AM Subject: Re: [Elecraft] a real bandscope Charles Harpole wrote: If u would like a real bandscope with a completely real time oscilloscope-like trace (as well as a xmas tree), get the SM-220 or SM-230 from Kenwood. Probably no longer made, they mate with the TS-950 and its juniors and really work even when u are turning the tuning knob. Likely Kenwood lovers will not part with theirs, so gud luck on finding one. No computer needed at all. This OLD TECHNOLOGY remains superior to anything I've seen in the new market today. Too bad it must mate with such a medium-performing rcvr. I have to disagree. I had one, and the bandwidth of the filter used is so wide that it's impossible to distinguish cw signals a few kHz apart. It definitely does not provide the kind of display found, for example, on newer ICOM rigs. I too would like a standalone panadapter (bandscope, whatever) that does not require a computer, but I don't miss the Kenwood unit. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.23.21/1454 - Release Date: 5/19/2008 7:44 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft at Dayton
Date: Mon, 19 May 2008 08:13:09 -0700 (PDT) From: Chris Kantarjiev K6DBG [EMAIL PROTECTED] You can always drive a linear amp with a QRP signal, but under FCC rules, producing more than 480 watts out with 15W in is prohibited for a type-accepted amplifier (15 db gain). Of course! Too much blood in my caffeine stream. But if there were, say, a convenient attenuator pad that could be bypassed by a motivated amateur... IIRC, easily modified was in the older rules, but that seems to only apply to CB coverage now. err, why not just build up another KPA-100 and leave it with the KPA800? No reason, really, aside from cost (which might pale in comparison to the KPA800!) Yep. I suspect the KPA100 is really necessary, though, since it's got filtering approriate for that level of output power and I think there might be a problem with just amplifying the QRP level signal to real QRO, without adding the extra filtering. I suspect other know the details on this better than I. Mostly, I guess, I hope that any such amp will be as well integrated with the K2 as the K3. Note that the KPA800/1500 was first shown with the K2, and was closely integrated at that time. Rumor: I've heard that the amp worked really well mostly, but there was a problem that caused much failure of the expensive power devices. 73, doug ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
On 19, May 2008, at 10:10, Vic K2VCO wrote: Charles Harpole wrote: If u would like a real bandscope with a completely real time oscilloscope-like trace (as well as a xmas tree), get the SM-220 or SM-230 from Kenwood. Probably no longer made, they mate with the TS-950 and its juniors and really work even when u are turning the tuning knob. Likely Kenwood lovers will not part with theirs, so gud luck on finding one. No computer needed at all. This OLD TECHNOLOGY remains superior to anything I've seen in the new market today. Too bad it must mate with such a medium-performing rcvr. I have to disagree. I had one, and the bandwidth of the filter used is so wide that it's impossible to distinguish cw signals a few kHz apart. It definitely does not provide the kind of display found, for example, on newer ICOM rigs. I too would like a standalone panadapter (bandscope, whatever) that does not require a computer, but I don't miss the Kenwood unit. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco Count me in on a stand alone spectrum display, a small black box with a VGA connector. I don't want to be tethered to a computer though. I agree on the SM230/220, had them both and neither on holds a candle to the Icom bandscope, for receiving Dale, K9VUJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft at Dayton
Doug Faunt N6TQS +1-510-655-8604 wrote: Note that the KPA800/1500 was first shown with the K2, and was closely integrated at that time. It would work well with the K2, but it was designed to work with other popular rigs from ICOM, Yaesu, Kenwood, etc. as well. It is not 'closely integrated' in the way that the KPA100 is! Rumor: I've heard that the amp worked really well mostly, but there was a problem that caused much failure of the expensive power devices. I asked Eric specifically why the amplifiers were delayed. Did they meet IMD goals? He said that there was only one reason: the K3. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
On Mon, 19 May 2008 10:37:38 -0500, you wrote: [snip] Count me in on a stand alone spectrum display, a small black box with a VGA connector. I don't want to be tethered to a computer though. I agree on the SM230/220, had them both and neither on holds a candle to the Icom bandscope, for receiving Dale, K9VUJ Yes, I'd rather have a stand alone also, but not at the price of over 1k buck! The KWD SM-230 was a good scope in it's day but it is 30 year old technology. I have one and still use it for the other things it does. Tom, N5GE - SWOT 3537 - Grid EM12jq Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT - Kenwood 'scopes
Good or not, they were / are very popular. I've sold four of 'em on eBay ... spirited bidding. All went off-shore. 73! Ken Kopp - K0PP [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Interesting Stuff at Dayton
Au contrare - K3's IF output is shown on the schematics to clearly be taken before the crystal filters. Maybe I should have said, 'bandpass filters'? I checked before I wrote the message and knew that the IF pickup is before the roofing filters. ...sorry for any confusion Mark AD5SS On Mon, May 19, 2008 at 8:18 AM, Barry N1EU [EMAIL PROTECTED] wrote: AD5SS penned it is a 2nd receiver for any signal that is available to it from the K3's IF. That means only signals that make it through the passband filter. Au contrare - K3's IF output is shown on the schematics to clearly be taken before the crystal filters. 73, Barry N1EU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
Well, I have my LP-PAN on order and can't wait to receive it. I ordered mine assembled so I may have to wait a couple of weeks more for it. I don't mind being tethered to a computer while operating. Truth is I have become so dependent on my logging program (HRD), QRZ.com, DX cluster, etc. that I can't imagine operating without one. I even bring a wireless laptop when operating outside on nice days in the summer. And if band activity is low, I can spend the lulls browsing my forums and mailing lists. From what I hear, the LP-PAN should be second to no other pan adapter and the ability to use it as a 2nd receiver is very attractive, too. I am quite excited at the prospect of adding a DRM decoder behind it (BC DRM - not the narrow band ham version), although there are ruminations that DRM is a dud in the marketplace and may disappear. Knut - AB2TC Tom Childers, N5GE wrote: On Mon, 19 May 2008 10:37:38 -0500, you wrote: [snip] Count me in on a stand alone spectrum display, a small black box with a VGA connector. I don't want to be tethered to a computer though. I agree on the SM230/220, had them both and neither on holds a candle to the Icom bandscope, for receiving Dale, K9VUJ Yes, I'd rather have a stand alone also, but not at the price of over 1k buck! snip -- View this message in context: http://www.nabble.com/Interesting-Stuff-At-Dayton-tp17308788p17322273.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 in Aquitaine
Factory built ordered 16 November. Katiegram 22 April, 1.8kHz filter and KRX3 on back order. Arrived Samazan 10.33 this morning via Santa Cruz, San Jose, Louisville KY, Köln (Cologne), Marseille, Bordeaux and Carbon Blanc. Another K3 in France - and I'm a bit closer to WAUPS... 73, Pete Connors F5VNB/G4PLZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: will sidetone ever go from 300 to 1000 by 10 Hz increments?
Can Lyle or someone tell me if there are plans to have the sidetone run from 300 to 1000 by 10 Hz increments in some future firmware version? Is there some basic reason it can't be done? I note that page 9 of the K3 Owners Manual C1 says that the sidetone is adjustable from 300 to 1000 Hz. Is that / will that be / so? Sorry for the nonsense below. I wrote before thinking. Actually, a serial number specifying one of the 15 different pitches in the range from 300 to 1000 Hz by 50 Hz increments can be saved in ONE four-bit register (2 to the 4th = 16). And a serial number specifying one of the 71 different pitches in the range from 300 to 1000 by 10 Hz increments can be saved, with lots of room to spare, in TWO four-bit registers (2 to the 8th = 256). So at worst, the storage used would be one byte, not nine. *** Incorrect information posted earlier is: I wonder if the problem here is memory register space. From 300 to 1000 with 50 Hz increments would be 15 different pitches, just shy of two bytes of memory space to record. The same range with 10 Hz increments, it would be 71 different pitches, requiring nine bytes of memory space to record. 73, Oliver Johns W6ODJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: stay away from these frequencies
According to the scrolling banner on the CQ Magazine home page, the Chinese are using 7050, 7060, and 14270 for disaster communication. It is urged to stay clear of these frequencies. I don't know if this is accurate or not, but why take a chance? If this was already posted here, sorry for the duplicate posting. de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: K3: will sidetone ever go from 300 to 1000 by 10 Hz increments?
On May 19, 2008, at 11:08 AM, O. Johns wrote: Can Lyle or someone tell me if there are plans to have the sidetone run from 300 to 1000 by 10 Hz increments in some future firmware version? Is there some basic reason it can't be done? I note that page 9 of the K3 Owners Manual C1 says that the sidetone is adjustable from 300 to 1000 Hz. Is that / will that be / so? This can be done, but not in the near term because of more pressing firmware needs. I'll be looking at this when I look at changing the DSP control granularity to 10 Hz. 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] OT: stay away from these frequencies
Yes. From the ARRL Newsletter: On Monday, May 12 at 0628 UTC, a magnitude 7.8 earthquake hit Sichuan, China. The Chinese Radio Sports Association, the Chinese IARU Member-Society, has designated the following frequencies for emergency services involved in the rescue: 14.270, 7.050 and 7.060 MHz. The ARRL encourages US amateurs to be aware of the emergency operations on those three frequencies. More at http://www.arrl.org/news/stories/2008/05/13/10095/ Ron AC7AC -Original Message- According to the scrolling banner on the CQ Magazine home page, the Chinese are using 7050, 7060, and 14270 for disaster communication. It is urged to stay clear of these frequencies. I don't know if this is accurate or not, but why take a chance? If this was already posted here, sorry for the duplicate posting. de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: stay away from these frequencies
really important to know this. I'll have to aim my rhombic the other way now Steve Ellington [EMAIL PROTECTED] - Original Message - From: Ron D'Eau Claire [EMAIL PROTECTED] To: 'Elecraft Reflector' elecraft@mailman.qth.net Sent: Monday, May 19, 2008 3:00 PM Subject: RE: [Elecraft] OT: stay away from these frequencies Yes. From the ARRL Newsletter: On Monday, May 12 at 0628 UTC, a magnitude 7.8 earthquake hit Sichuan, China. The Chinese Radio Sports Association, the Chinese IARU Member-Society, has designated the following frequencies for emergency services involved in the rescue: 14.270, 7.050 and 7.060 MHz. The ARRL encourages US amateurs to be aware of the emergency operations on those three frequencies. More at http://www.arrl.org/news/stories/2008/05/13/10095/ Ron AC7AC -Original Message- According to the scrolling banner on the CQ Magazine home page, the Chinese are using 7050, 7060, and 14270 for disaster communication. It is urged to stay clear of these frequencies. I don't know if this is accurate or not, but why take a chance? If this was already posted here, sorry for the duplicate posting. de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.23.21/1454 - Release Date: 5/19/2008 7:44 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RTTY filter for K3
Re: using Nyquist filters for RTTY. One complication I didn't mention is the fact that, because angle modulation (FM, FSK, PM, PSK) is fundamentally non-linear, the pre-detection and post-detection filters are fundamentally different. With linear modulation types (AM, on-off keying, QPSK, QAM), the spectrum of the pre-detection filter will appear the same at baseband. For example, if the IF filter has a 0.3-alpha Nyquist bandpass response, the resulting post-detection response at baseband will also be a 0.3-alpha Nyquist lowpass response. But that's not true with angle modulation. Using a Nyquist pre-detection filter does not result in a Nyquist response after detection. That is why most FSK and MSK systems use non-Nyquist filters (typically Gaussian). To use a Nyquist filter with FSK you would have to use a pre-detection filter much wider than the baud rate (as is done now for RTTY) and then add a Nyquist post-detection filter that would further tighten up the frequency response without causing additional inter-symbol interference. There may be a good reason why this is not usually done. When I get time maybe I'll do some Mathcad simulations to see if it looks like this could work. Some RTTY decoders take advantage of the tone separation and actually employ a pair of detectors, one for each tone, and use the outputs differentially to get some protection from selective fading. I think it is not just for selective fading but also for interference that occurs primarily on one of the two tones. It might be possible to use separate Nyquist filters and detectors for the two tones, treating each one as if it were a separate on/off-keyed signal. If the transmitted signal is not filtered too heavily (i.e. jumps quickly from one tone to the other) it seems like that should work. Al N1AL On Mon, 2008-05-19 at 07:00, Lyle Johnson wrote: Using a excessively narrow filter on RTTY is a balancing act. If the bandwidth is too narrow the tones tend to become smeared - the transitions become less easy to detect (in other words, the eye begins to close). However, narrowing the bandwidth also reduces the amount of QRM/QRN making it through the filter and to the decoder/detector. How about using a Nyquist filter? A Nyquist filter is one that results in no inter-symbol interference. One of the difficulties with RTTY is that the tone spacings are so wide. For a 45 baud FSK signal, a shift of about 30 Hz would minimize the occupied bandwidth and have no intersymbol interference. But standard practice is to use 170 Hz or 200 Hz shift. [ 200 Hz Shift is about right for 300 baud FSK, which is what we used (and why we used it) for HF packet some 25 years ago. And optimized it for common 400 Hz to 500 Hz wide CW crystal filters of that era. ] Thus, the rise of the dual tone filter (K3) and its work-alikes in various radios and demodulators, with fairly tight filters around each tone to pass it along with its significant sidebands. But the overall IF passband still needs to be wide enough to pass both tones and their sidebands. I imagine you can observe all of this on your P1. Some RTTY decoders take advantage of the tone separation and actually employ a pair of detectors, one for each tone, and use the outputs differentially to get some protection from selective fading. 170 Hz spacing is probably too close for such protection -- 850 Hz spacing would be better, but that requires an even wider IF passband... Some soundcard-based RTTY programs support really narrow shifts, but such signals are not often heard at this QTH. Maybe it is because everyone is listening and no one is calling CQ? Enjoy! Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] OT: stay away from these frequencies
I started monitoring those frequencies last week when this was first announced. I have heard a lot of activity but all of it is in Spanish. Kevin. KD5ONS -Original Message- From: Ron D'Eau Claire [EMAIL PROTECTED] Sent: May 19, 2008 12:00 PM To: 'Elecraft Reflector' elecraft@mailman.qth.net Subject: RE: [Elecraft] OT: stay away from these frequencies Yes. From the ARRL Newsletter: On Monday, May 12 at 0628 UTC, a magnitude 7.8 earthquake hit Sichuan, China. The Chinese Radio Sports Association, the Chinese IARU Member-Society, has designated the following frequencies for emergency services involved in the rescue: 14.270, 7.050 and 7.060 MHz. The ARRL encourages US amateurs to be aware of the emergency operations on those three frequencies. More at http://www.arrl.org/news/stories/2008/05/13/10095/ Ron AC7AC -Original Message- According to the scrolling banner on the CQ Magazine home page, the Chinese are using 7050, 7060, and 14270 for disaster communication. It is urged to stay clear of these frequencies. I don't know if this is accurate or not, but why take a chance? If this was already posted here, sorry for the duplicate posting. de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 noise-blanker
Gentlemen, I'm really interested in the K3 but what I'm asking of anyone on this reflector is how GOOD IS IT??? I presently use a TT ORION which has a fantastic 9mhz. (hardware) blanker and has made all the difference in the world for my being able to copy weak signals, especially since our typical noise level here is S-9+ without it!!! So short of my having to MOVE somewhere else (not feasible at this time!!!) has anyone COMPARED the i.f noise blankers of both the K3 and the TT Orion yet??? Many thanks, Jim Davis/nn6ee Newbie on the reflector! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Fwd: a real bandscope
I alteady sent this, but do not see the postion... so here it is again. I vote for a stand alone bandscope. I am tied to a computer 8 hours a day and don't want to be tied to one in my hobby. The IC-756PRO III stays until the K3 has one. If we have to have a computer, might as well have a Flex Radio. Joe N9VX K3 #841 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re:Fwd: [Elecraft] K3 noise-blanker
Many thanks Wayne for your reply and I will ask Lisa about it as well, but there has to be others out here as well that have done similar comparisons! Jim/nn6ee ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Fwd: a real bandscope
With the Flex Radio, you don't have a choice. You must use the computer or you have no radio. Also, as good as the Flex's receiver is, it can't transmit CW worth a hoot and probably never will. It's got a clunky, slow and loud relay that will never be capable of satisfying us QSK types. For SSB, it is fine. I would like to see a bandscope adapter with an IF input and VGA output for use with a PC monitor. Things get complicated however when you want point and click tuning as on the Flex. I guess the adapter needs a mouse port! I guess the bottom line is: How much would one be willing to pay for this? Personally I would pay quiet a bit for a bolt on bandscope. Something as good as the Flex bandscope intregated into the K3 would make ICOM look second rate. Steve Ellington [EMAIL PROTECTED] - Original Message - From: Joe Word [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, May 19, 2008 4:17 PM Subject: [Elecraft] Fwd: a real bandscope I alteady sent this, but do not see the postion... so here it is again. I vote for a stand alone bandscope. I am tied to a computer 8 hours a day and don't want to be tied to one in my hobby. The IC-756PRO III stays until the K3 has one. If we have to have a computer, might as well have a Flex Radio. Joe N9VX K3 #841 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.23.21/1454 - Release Date: 5/19/2008 7:44 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: Re:[Elecraft] Fwd: K3 noise-blanker
Yes indeed we are out here. I for my part is quite happy with the K3 noise blanker. You are not mentioning the nature of your noise. Mine is the scratchy 120Hz noise emitted by power lines. The K3 noise blanker is quite effective in removing it. I use a combination of the hardware and the DSP noise blanker. I do not have any TT transceivers nor the Pro III so can't help you with a comparison there. The noise blanker in the K3 is one of the reasons I spent the money to upgrade from my IC-718 which otherwise performed to my satisfaction. I had confidence in the K3's noise blanker as there are before/after audio clips out there. I can send you one if you are interested. I think I still have one somewhere. Right now it's raining so the noise is absent. BTW I am working with the power company and have had some success in getting problems fixed, but since last fall there is a stubborn source that so far has defied detection. I think I know where the source is (down to three poles), but unfortunately the National Grid tech doesn't agree with me. This is constant struggle anyway since new problems are constantly popping up so I decided even if I were to ultimately succeed in getting this particular problem fixed, I need a working secondary defense and the K3 is just that. Knut - AB2TC JIM DAVIS-11 wrote: Many thanks Wayne for your reply and I will ask Lisa about it as well, but there has to be others out here as well that have done similar comparisons! Jim/nn6ee ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- View this message in context: http://www.nabble.com/Re%3AFwd%3A-K3-noise-blanker-tp17327645p17328723.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RTTY filter for K3
Alan Bloom wrote: The problem is that different RTTY transmitters use different amounts of filtering. However I suspect that a Nyquist receive filter designed to compensate a typical/average transmit filter probably would have pretty good performance on most received signals. Does anyone know if this has ever been tried? With digital filters, one ought to be able to use the sort of adaptive filters used in modems, where the filter coefficients are adjusted by comparing the actual signal against the expected signal. Modems send a known training signal, to get fast initial convergence, but if the signal is at least marginally decodable, I would have though it would be possible get the filter to converge. One could probably start by making assumptions about the transmit filter and using known information about the receiver. This tactic will work better for synchronous systems, like PSK, but I would have thought it must be possible to train a filter off an asynchronous signal as well, although one might have solve for the signalling unit centre position after receiving the whole character. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] NAQCC Sprint Wednesday night!
NAQCC Sprint Wednesday night! This coming Wednesday evening will be the monthly NAQCC Sprint for May, 2008. I will refer you to the proper URL: http://www.arm-tek.net/~yoel/sprint200805.html There you will find all the details as to time, frequencies, this month's Special Award, which will be awarded to the one working the most different call areas in the USA. This is a monthly event that caters to the CW veteran, the CW newcomer, straight key and bug fans. All are welcome to participate; but you must use QRP power levels to compete for awards. Come join us and have a real good time! 73 de Dave VA3RJ NAQCC #0004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: stay away from these frequencies
Is it a coincidence the Chinese over horizon radar has been silent on 40m the last week? DOUGLAS ZWIEBEL wrote: According to the scrolling banner on the CQ Magazine home page, the Chinese are using 7050, 7060, and 14270 for disaster communication. It is urged to stay clear of these frequencies. I don't know if this is accurate or not, but why take a chance? If this was already posted here, sorry for the duplicate posting. de Doug KR2Q -- View this message in context: http://www.nabble.com/OT%3A-stay-away-from-these-frequencies-tp17325180p17330054.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] WHERE ARE THE KPAs
Eric/Wayne, can you give us a tidbit to tide us over on this subject. I know you guys are busy with the K3, but we would at least like to know that the KPAs are forthcoming. How about an update. Stan W5EWA Houston, TX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] WHERE ARE THE KPAs
These are on hold and will not make it back into the lab until at least the end of the year at the earliest. We're fully committed right now on the K3 and will be so through the end of the year. 73, Eric WA6HHQ (Back from Dayton and Tired! :-) Stan Rife wrote: Eric/Wayne, can you give us a tidbit to tide us over on this subject. I know you guys are busy with the K3, but we would at least like to know that the KPAs are forthcoming. How about an update. Stan W5EWA Houston, TX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] WHERE ARE THE KPAs
Hi Eric, How are things going with the KRX3 shipments? 73, Manuel W4SSB -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eric Swartz - WA6HHQ, Elecraft Sent: Monday, May 19, 2008 7:32 PM To: Stan Rife Cc: Elecraft Subject: Re: [Elecraft] WHERE ARE THE KPAs These are on hold and will not make it back into the lab until at least the end of the year at the earliest. We're fully committed right now on the K3 and will be so through the end of the year. 73, Eric WA6HHQ (Back from Dayton and Tired! :-) Stan Rife wrote: Eric/Wayne, can you give us a tidbit to tide us over on this subject. I know you guys are busy with the K3, but we would at least like to know that the KPAs are forthcoming. How about an update. Stan W5EWA Houston, TX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RTTY filter for K3
Good point. It seems like an adaptive equalizer should work so long as propagation hasn't totally garbaged the signal. However, it would greatly increase the complexity of the demodulator. But maybe not if the equalizer assumes a simple model of the transmit filter and makes the a priori assumption that the channel does not change with time (i.e. ignores propagation). Al N1AL On Mon, 2008-05-19 at 14:59, David Woolley (E.L) wrote: Alan Bloom wrote: The problem is that different RTTY transmitters use different amounts of filtering. However I suspect that a Nyquist receive filter designed to compensate a typical/average transmit filter probably would have pretty good performance on most received signals. Does anyone know if this has ever been tried? With digital filters, one ought to be able to use the sort of adaptive filters used in modems, where the filter coefficients are adjusted by comparing the actual signal against the expected signal. Modems send a known training signal, to get fast initial convergence, but if the signal is at least marginally decodable, I would have though it would be possible get the filter to converge. One could probably start by making assumptions about the transmit filter and using known information about the receiver. This tactic will work better for synchronous systems, like PSK, but I would have thought it must be possible to train a filter off an asynchronous signal as well, although one might have solve for the signalling unit centre position after receiving the whole character. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3/10 kit shipped, ordered 12/21
Got my Madelyngram stating my K3/10 kit shipped, which was ordered December 21st. Woohoo! Still gotta get another bag of concrete in the hole for the post for my ZeroFive 43' vertical, and run the Davis RF Bury Flex coax (shipping tomorrow) under my house. -- View this message in context: http://www.nabble.com/K3-10-kit-shipped%2C-ordered-12-21-tp17330612p17330612.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
For me, I liked my old Heathkit (I admit I cannot recall the number, SB-620 or something like that, but in recent memory (good enough to be reliable) I liked the one in the IC-781, even better than the one in the IC-7800, and would like that sort of display for the spectrum scope, but on a nice flat panel, and I agree, it would be nice to not require a computer (I don;t care if it has it built in, just not another overhead for the shack computer... 73 de Dave, W5SV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 #642 on the air
KEVIN: If you see this, my S/N is 642, not 624. Not only did I QLF it on the air in ECN, I remembered it all wrong as well. I think it's called age. :-( ALL: Assembly went really great, no problems; follow the directions. Lots of screws, multiple kinds of washers, and a few nuts [what would ham radio be without a few nuts]; a muffin tin or two and a ruler helps a lot. Two momentary panics: One after the KPA3 was done and I couldn't get the power above about 12W. As a last resort :-) I read the manual and found out the CONFIG:PAio menu, which was turned ON, only applies if you have the IO module installed but not the amp itself. Proceeding up the choices, I then found CONFIG:PA, turned it to 'nor', and 100W wafted from my beam. Other panic: I have a little Radio Shack audio amp I use to get my radios up to afterburner roar since my hearing aids don't work under the headphones. I tried it, and the AF Gain was about 9 o'clock for good listening. Later hooked it up again, and virtually no sound from the radio, even with the AF Gain maxed out. No antenna -- end of panic. This is a vy quiet radio! At the tool store in town, I picked up 3 or 4 little stainless surgical clamps awhile ago. They are very useful for getting screws started without dropping them into the guts of the radio. I had to use a fingernail file to round off the mini-coax plugs from the Ref Osc, but that was easy. No other issues. This is a clean kit for sure. I've had a couple of weeks with it now and I can't really come up with my top ten likes, there are so many. But I know a big one is that the radio comes alive right after calibration in a highly usable state without much menu tweaking. Just enable the modules you have, and you're on the air, mess around with the menu entries at your leisure. Nice job Elecraft! I'm a happy ham. We'll try it out in WPX CW this weekend after #3 grandson Joe gets married Sat. Most everyone will have the K6 mult by the time I get on. 73, Fred K6DGW - Northern California Contest Club - CU in the 2008 Cal QSO Party 4-5 Oct 08 - www.cqp.org ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] a real bandscope
If you can find one, the Clifton Laboratories Z90 or Z91 is a pretty nice standalone unit as well. John, N6AX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Buddipole stuff at Dayton
A friend of mine, K8EAB, took some pictures at Dayton of the new stuff at Buddipole. Several new Buddipole Products were shown for the first time at the Dayton Hamvention ... I saw the Automatic Buddipole at the QRP Vendor Night presentation, along with a compact 40-amp super-cap power supply ... the Automatic Buddipole will have a remote control for bandswitching ... At a Saturday evening dinner, Chris and Budd showed the new Buddipole Rotor Control Box ... There also were prototypes of a 100-watt Dummy Load and a new shock-corded mast ... another product soon to be available is a capacitive hat ... No information on availability dates or prices, but you can bet if these products were shown at Dayton, it won't be too long until you can place your order ... I got permission to post photos that I took ... http://picasaweb.google.com/weymouth67/BuddipoleAtDayton2008 http://picasaweb.google.com/weymouth67/BuddipoleAtDayton2008 73, Wey ... K8EAB Stan KB4IA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Wiring Headphones for K3
Hi Everyone, I'm in the process of wiring a stereo jack onto old faithful monoral headphones for use on the K3. (The phones are not reversible when worn). When the sub receiver arrives, I want the main receiver in the left channel and the sub receiver in the right channel. For K3 use with a stereo plug, is the left channel on the jack tip or the jack sleeve? I could not find any information in the owners or assembly manuals on this. It may be in there but I cold not find it. Please no speculation as I need to know for certain so I don't have to do this over again. Reply on or off the reflector. Thanks in advance. 73 de N1LQ-Dave ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Subject: Re: [Elecraft] RTTY filter for K3
I must be confused by this filter discussion. Is not a Nyquist filter by its very definition a digital filter? Not directly comparable to the crystal filters in the K3 or any other rig. I would have supposed a Nyquist filter is one that samples at least twice per cycle at the highest observed frequency. As to what comes out of crystal filters, i.e. rtty tones, different discussion. If I have the processing chain figured correctly crystal filter output is then sampled by the audio card. I'm not a filter designer. Just asking based on previous experiences. 73 Art ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: A real bandscope
A bandscope like the Flex 5000A's would be ideal. It works great.as does the radio, even on CW since I have no need for anything close to 50 wpm. Keep in mind that the Flex 5000 uses it's own, high performance sound card, not a typical PC sound card. But there are knobs and buttons on the K3. I still have to have a radio with knobsa K3 and a K2. I may control these rigs from a PC at times, but still love to tune and listen. It will be interesting to see what evolves for a bandscope with the K3 even though I probably will not be interested in one. 73, Dave N8AG K3 #414 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 noise-blanker
On Mon, 19 May 2008 13:17:48 -0700, you wrote: Gentlemen, I'm really interested in the K3 but what I'm asking of anyone on this reflector is how GOOD IS IT??? I presently use a TT ORION which has a fantastic 9mhz. (hardware) blanker and has made all the difference in the world for my being able to copy weak signals, especially since our typical noise level here is S-9+ without it!!! So short of my having to MOVE somewhere else (not feasible at this time!!!) has anyone COMPARED the i.f noise blankers of both the K3 and the TT Orion yet??? Many thanks, Jim Davis/nn6ee Newbie on the reflector! ___ [snip] I have an Orion II and K3 SN 806. The K3 is a much better rig overall than the Orion II and the noise blanker is very much better. Tom, N5GE - SWOT 3537 - Grid EM12jq Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Interesting Stuff At Dayton
Absolutely correct Julian. It is the combo of sound card and software that does it for you, but it does a very credible job of it I might add. I know Elecraft has thoughts of adding a bandscope of some sort, so keep the faith! Your prayers may be answered. I just thought it was kind of interesting how Larry Phipps had incorporated all this together into a very nice little package. The sound card is critical of course, and most laptops don't have one that is sufficient. But I think if you check Larry's website and/or his Yahoo group site you will find some recommendations. Besides, it could be something of a wait for Elecraft to get around to following up on their indicated desire to produce a bandscope. In the meantime, this could be a relatively inexpensive way to accomplish much the same thing. Dave W7AQK - Original Message - From: G4ILO [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, May 19, 2008 1:39 AM Subject: Re: [Elecraft] Interesting Stuff At Dayton It appears to me that it would be a second receiver only with the aid of a PC, sound card and SDR software. What I would like to see is an external bandscope that does not require a computer. Either it would be completely self contained, or it would use an inexpensive portable LCD TV for its display. Perhaps Elecraft will come up with something like this in the future? - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/Interesting-Stuff-At-Dayton-tp17308788p17313629.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RX/TX problem
Last week I was on the list when my K-3 went belly up. The support folks were on top of the problem right away. Kudos to them. The problem appears to be an intermittent socket/connection between the txco and the ref board. When pressure is applied down on the txco towards the front shield the RX/TX comes to life and the synth calibrates. Why the failure happened in the first place is a mystery since the radio was working fine then quit. In any event it would appear to be a simple enough fix at this point. 73 all Mike/aj9c P.S. Despite the problem I still got on the list for a second K-3 at Dayton! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Buddipole stuff at Dayton
Very interesting. That automatic Buddipole reminds me of C3PO's skinny younger brother. Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, May 19, 2008 5:48 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Buddipole stuff at Dayton A friend of mine, K8EAB, took some pictures at Dayton of the new stuff at Buddipole. Several new Buddipole Products were shown for the first time at the Dayton Hamvention ... I saw the Automatic Buddipole at the QRP Vendor Night presentation, along with a compact 40-amp super-cap power supply ... the Automatic Buddipole will have a remote control for bandswitching ... At a Saturday evening dinner, Chris and Budd showed the new Buddipole Rotor Control Box ... There also were prototypes of a 100-watt Dummy Load and a new shock-corded mast ... another product soon to be available is a capacitive hat ... No information on availability dates or prices, but you can bet if these products were shown at Dayton, it won't be too long until you can place your order ... I got permission to post photos that I took ... http://picasaweb.google.com/weymouth67/BuddipoleAtDayton2008 http://picasaweb.google.com/weymouth67/BuddipoleAtDayton2008 73, Wey ... K8EAB Stan KB4IA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 noise-blanker
I also have both, and I concur. Dave W7AQK - Original Message - From: Tom Childers, N5GE [EMAIL PROTECTED] To: JIM DAVIS [EMAIL PROTECTED] Cc: Elecraft@mailman.qth.net Sent: Monday, May 19, 2008 7:13 PM Subject: Re: [Elecraft] K3 noise-blanker On Mon, 19 May 2008 13:17:48 -0700, you wrote: Gentlemen, I'm really interested in the K3 but what I'm asking of anyone on this reflector is how GOOD IS IT??? I presently use a TT ORION which has a fantastic 9mhz. (hardware) blanker and has made all the difference in the world for my being able to copy weak signals, especially since our typical noise level here is S-9+ without it!!! So short of my having to MOVE somewhere else (not feasible at this time!!!) has anyone COMPARED the i.f noise blankers of both the K3 and the TT Orion yet??? Many thanks, Jim Davis/nn6ee Newbie on the reflector! ___ [snip] I have an Orion II and K3 SN 806. The K3 is a much better rig overall than the Orion II and the noise blanker is very much better. Tom, N5GE - SWOT 3537 - Grid EM12jq Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
