Re: [Elecraft] K2 DSP/Crystal Bandpass Alignment for PSK31
Bill, The advantage to using a higher center frequency is that there is less possibility of a 2nd harminic 'ghost' on the data mode signal - caused by soundcard distortion or other artifacts. With the K2, a center frequency with a narrow passband may be limited by the BFO range. That is usually only a problem with RTTY (lsb), but not the normal RTTYr (usb) while using a narrow filter width (500 Hz or less). Typical operation with data modes use USB, so the problem is minimized (or non-existant) in normal operation. 73, Don W3FPR Bill Strong wrote: > Don, > > Thank you for your response. I read all of your posts. > > I will do as you say. I can see that a center of 1000 Hz would be what I > need for use of the 2.2 KSB2 filter for transmitting. > > By way of explanation I have been using the waterfall display on DM 780 to > set my filters as it seemed to accomplish what I needed. I have been > following the K3 PWR Out discussion concerning PSK. I used a watt meter to > determine that when transmitting PSK my power out is best over a 1000 Hz > range centered on 1400 Hz in the passband of the 2.2 filter (using the > waterfall to measure this). That is the reason I was trying to get > everything centered on 1400 Hz in the passband of the transmitting filter. > It is my understanding that any SSB transmission will go through the KSB2 > 2.2 filter? so it would be ideal to be centered on it? > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.0.233 / Virus Database: 270.10.16/1930 - Release Date: 01/31/09 > 20:03:00 > > __ 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] K2 DSP/Crystal Bandpass Alignment for PSK31
Don, Thank you for your response. I read all of your posts. I will do as you say. I can see that a center of 1000 Hz would be what I need for use of the 2.2 KSB2 filter for transmitting. By way of explanation I have been using the waterfall display on DM 780 to set my filters as it seemed to accomplish what I needed. I have been following the K3 PWR Out discussion concerning PSK. I used a watt meter to determine that when transmitting PSK my power out is best over a 1000 Hz range centered on 1400 Hz in the passband of the 2.2 filter (using the waterfall to measure this). That is the reason I was trying to get everything centered on 1400 Hz in the passband of the transmitting filter. It is my understanding that any SSB transmission will go through the KSB2 2.2 filter? so it would be ideal to be centered on it? -- View this message in context: http://n2.nabble.com/K2-DSP-Crystal-Bandpass-Alignment-for-PSK31-tp2260949p2261609.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] K2 AGC low voltage
Mark, The 8 volt regulator is a 10% tolerance part, and as of late, they have been running on the low side of the nominal voltage. 7.56 volts is well within the device specs. A replacement regulator from Elecraft may or may not provide a higher voltage. The maximum AGC Threshold voltage is directly related to the 8 volt regulator output voltage since the voltage is simply a 3 legged resistive network. The major 'problem' with the lower AGC Threshold is that at lower voltages, the S-meter adjustments get a bit 'squirrelly'. Meaning that it may not be possible to adjust the S-meter to indicate an S-9 level with a 50 uV input and an S-1 level with a 1 uV input (XG1 or XG2 signal generator). The performance of the K2 will not suffer as a result of the lower voltage. My advice is to simply set the AGC Threshold to maximum in your case and if you experience S-meter difficulties that are important to you, then changing the 8 volt regulator and re-doing the AGC Threshold followed by CAL S LO and CAL S HI would be in order. If you are one of those hams who consider the S-meter to be only a relative indicator of signal strength rather than an absolute scale, then you will not have any problems with your current 8 volt regulator. 73, Don W3FPR Mark Mellish wrote: > Hi K2 builders, > I'm working on K2 #6318, and the voltage at pin 5 of of U2 is maxed > out at 3.61v. The 8v regulator is only putting out 7.56v. I see some > posts in the archives recommend replacing the regulator, and a couple > that say to leave it alone, and all will be well. Is there a final > word on this? What is the tolerance on the regulator? I would much > rather change out U4 now rather than later. Will Elecraft likely have > an 8v replacement, or will it just be luck? U5 is putting out 4.95v. > Thanks, Mark > __ 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] K2 AGC low voltage
Hi K2 builders, I'm working on K2 #6318, and the voltage at pin 5 of of U2 is maxed out at 3.61v. The 8v regulator is only putting out 7.56v. I see some posts in the archives recommend replacing the regulator, and a couple that say to leave it alone, and all will be well. Is there a final word on this? What is the tolerance on the regulator? I would much rather change out U4 now rather than later. Will Elecraft likely have an 8v replacement, or will it just be luck? U5 is putting out 4.95v. Thanks, Mark__ 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] K2 DSP/Crystal Bandpass Alignment for PSK31
Bill, You might want to try the way I set up the RTTY filters. Of course, I use Spectrogram, and if you are not familiar with that computer application, take a look at my website www.w3fpr.com and look in the K2 Dial Calibration article. Part 3 describes how to use Spectrogram for setting your K2 IF filters. For RTTY, I normally set FL1 to the OP1 filter (BFOs set the same as for SSB) to produce the wide waterfall display. FL2 is set to 1.00 width, FL3 to 700 Hz, and FL4 set to 400 Hz. I try to align the filters (except for FL1) to a center frequency of 1000 Hz. If the FL4 RTTY (as opposed to RTTYr) cannot be aligned to a 1000 Hz center because of limited BFO range, I use 800 Hz as an alternative. Once the RTTY filters are set, if a KDSP2 is installed, one must change the center frequencies in the DSP menu for a center frequency of 1000 (or 800) Hz. In operating use, one would find a desirable data mode signal in the waterfall display, then use the VFO knob to move that desired signal to the vicinity of 1000 (800) Hz, and make contact. If QRM becomes a problem, lock the transmit frequency in the software application and engage a more narrow IF filter as required. If the QRM is still a problem, also use the DSP to produce more narrow skirts on the filtering. That is how I do it and it works for me - I encourage you to try it and see if you agree. Using the RTTY filter set allows you to set the SSBC parameter for data modes to 1:1 and use a different compression setting for SSB mode. 73, Don W3FPR 73, Don W3FPR Bill Strong wrote: > I am trying to align my 250 hz crystal filter with a 200 hz DSP filter in the > middle of the passband of my 2500 hz SSB filter for the purpose of > transmitting and receiving PSK-31 in the middle of the 2500 hz filter > bandpass. > > I have succeeded in moving the crystal filter by changing the bfo setting. > It is centered at 1400 in the 2500 bandpass. When I try to narrow the S4 SSB > DSP filter it will only narrow to 1000hz spread from 600Hz to 1600 Hz in the > bandpass. It seems that the CW DSP filter goes down to 200Hz. I tried the > RTTY/DATA mode but was not able to make any sense of what the filters > relationship would be when I tried changing the settings. > > Any help would be apprciated. > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.0.233 / Virus Database: 270.10.16/1930 - Release Date: 01/31/09 > 20:03:00 > > __ 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] K2: For Sale K2 with KAT2; K160RX; KAF2; KSB2; KNB2 $635
K2: For sale K2 with KAF2; KSB2; K160RX; KNB2; KAT2 Version 2.04P/1.09; KSB2 1.08b. Options furnished: KAF2; KSB2; K160RX; KNB2; KAT2. Kenwood hand microphone. Documentation and manual included. Updated and recalibrated by Gary Surrency AB7MY of Elecraft. Excellent condition. $635 plus shipping + insurance. CONUS only please. __ 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] OT KX1: For Sale Hi-Q-antennas NVIS Hi-Q-3/80 TAD $600 or Wanted To Trade for KX1
Non-military version -- NVIS Hi-Q-3/80 motorized remote TAD tune-a-dipole on mounting base. With MFJ controller worth more than $1,050 new. http://www.hiqantennas.com/ Can be used as two mobile units. 2 Giant Quick disconnects (GQD’s) 2 Whip Quick Disconnects (WQD's) 2 4-lobe CapHat's Tripod Reed Switches Cables/Connectors MFJ-1924 controller $600 or best offer. Consider Trade for Elecraft KX1 with all options (30/80, ATU, key) Best, Daniel AD1P ## More information @ http://www.hiqantennas.com/ http://www.hi-q-militaryantennas.com/nvis.html [From Hi-Q Website] “Hi-Q-3/80 Tune-A-Dipole 10-80 Meter HF Portable antenna. The Tune-A-Dipole is available in both a Manually Tunable version and a Remotely Tunable (Motorized) version. The rotatable Hi-Q-Tune-A-Dipole HF antenna is very light and transportable -- just 7 pounds -- with the longest element only 34" long, when broken down for transportation. It is based on the Hi-Q-3/80 XTL (Extra Light) HF mobile antenna. A pair, back to back, assembles in minutes. The Hi-Q loading coil (Q=360) handles SSB legal limit and will tune CONTINUOSLY from 10-80 M including the NEW 60 M band.” __ 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] K2 DSP/Crystal Bandpass Alignment for PSK31
I am trying to align my 250 hz crystal filter with a 200 hz DSP filter in the middle of the passband of my 2500 hz SSB filter for the purpose of transmitting and receiving PSK-31 in the middle of the 2500 hz filter bandpass. I have succeeded in moving the crystal filter by changing the bfo setting. It is centered at 1400 in the 2500 bandpass. When I try to narrow the S4 SSB DSP filter it will only narrow to 1000hz spread from 600Hz to 1600 Hz in the bandpass. It seems that the CW DSP filter goes down to 200Hz. I tried the RTTY/DATA mode but was not able to make any sense of what the filters relationship would be when I tried changing the settings. Any help would be apprciated. -- View this message in context: http://n2.nabble.com/K2-DSP-Crystal-Bandpass-Alignment-for-PSK31-tp2260949p2260949.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 owner in spe
I'd like to illustrate where the KXV3 could be useful even with a sub RX installed. I have the sub RX but I don't have the KXV3. I frequently use diversity reception on 80 meters because my receive antenna is less noisy than my transmit antenna. But I usually end up with the balance control fully on the sub RX. Still not a compelling reason for the KXV3. The benefit occurs, however, when chasing a DX station using split. VFO A is on the DX frequency and diversity is turned on. But I can't listen continuously on my split transmit (VFO B) frequency. In this situation I have resorted to listening to the DX station using the sub RX in an unlinked state and using VFO A to both listen and transmit on another frequency. In other words, split is turned off. This works well but it is not intuitive since I am operating split but split is turned off. If I had the KXV3 I would probably tee the connector to both the AUX RF on the sub RX and RX ANT input on the KXV3. Mike K2MK from Mike Scott Mon, 02 Feb 2009 09:37:05 -0800 >Any comments >regarding the suitability of the following configuration for the mentioned >purposed will be appreciated. K3/100-F (100 W Transceiver KPA3-F (ATU 100W) KRX3 (Subreceiver) KTCXO3-1 (Stable oscillator) KUSB (USB) KDVR3 (Digital Voice Recorder) KXV3 RX Ant 2 pcs KFL3A-2.8_2.7sw replacement K3 and KRX3 2 pcs KFL3A-1.8 K SSB 2 pcs KFL3A-250 CW 2 pcs KFL3A-6K AM 2 pcs KFL3B-FM FM Kenwood MC-60 microphone Kjeld, You have a very complete configuration here. If you want to save some money you might drop the wide filters for the Sub Rx as they probably won't help you attain your stated DXCC goals. They might help bag some broadcast band DX if that is important to you. You may or may not need the KXV3 for Rx antenna as the sub receiver allows you to install a receive antenna BNC connector without the KXV3. The KPA3-F also adds a second RF connector for transmit/receive. Study the antenna switching part of the manual and determine if you need the KXV3 for your stated purpose of adding an Rx antenna. I don't have the KXV3 and I do have a separate Rx antenna port. If a band scope is important down the road you will need the KXV3. Depending on your operating style the band scope would help you attain your goals, your mileage may vary. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 __ 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 transverter output question
Terry: I have seen much the same thing with a DEM transverter and my K2, and I agree with your assessment. The IF circuitry in the DEM transverters does not seem to be designed to give anything close to a 50 ohm input impedance, especially when set for for very low input powers. It is quite reactive, at least for my transverter. I ended up adding a component or two inside the DEM transverter to improve the matching, so the K2 could drive it properly. 73, Steve VE3SMA __ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.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] K2 unadvertised feature ?
I just tried another test, which I think tends to confirm my theory in some way (or that something is amiss). When I apply my 0.5 mW 146 MHz test source to the XVTR OUT jack, the DC voltage at the cathode of D3 in the K60XV (the detector for VRFDET) increases from zero to about 0.1 volts. So I put together a resistor network, which when powered from a 12V battery produced this same DC voltage, and applied this DC voltage to the cathode of D3, with no RF input signals at all present. The same symptoms were observed (KEY OUT is keyed, receiver goes quiet and S-meter goes to maximum). 73, Steve VE3SMA __ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.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: FS: KFL3A-400 400 Hz 8-pole CW Roofing Filter for K3
Hi Everyone, I have a* KFL3A-400 400 Hz, 8-pole CW roofing filter for sale for the K3. Perfect physical and electrical condition. It is simply extra to my needs right now. Sells new for $125.95. Will sell for $95.00 shipped via USPS Priority Mail in the USA. Please respond to me off of the list. Thanks and 73 de N1LQ-Dave * __ 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] K2 : 8T rise and fall
I have an heavy trouble with my K2/100. During last french contest in SO2R setup, I made a mistake and keyed the K3 with the K2 still on the same band. I heard a strong noise in the K2, saw smoke and the TX was dead. RX OK. I've just replaced the 2 low level PA transistors : they were broken, both electrically and physically. Now the K2 has following behaviour : pressing TUNE, the PA collectors current rise very shortly, then fall. After 1 or 2 seconds, depressing TUNE has the same behaviour. I measured the 8 T line and the 8T voltage follows the same law. Suspecting any processor error, I made a reset (456POWER). No change. Any idea ? Where sould I focalise my efforts ? 73 Luc/F6HJO/HB9ABB__ 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] Separate CW Pitch for Main and Subreceiver
Thanks, Guy, that appears to work. I should have thought of that myself, I guess, but somehow I thought PITCH would be separately definable for the subreceiver. I used BSET to shift the subreceiver about 150 Hz. I've tried it both directions, but lower of course gives me the greatest percentage difference. As I tune VFO B the signal in the subreceiver peaks at the different pitch and it's easier to distinguish it from whatever I'm hearing in my left ear. I currently have it set for 640 Hz in my left ear (my preferred tone) and 500 Hz in my right ear. I was kind of hoping for a method that was independent of passband shift, but I'll gladly settle for this one. Thankfully it holds as I change bands. Thanks again! 73, Dave AB7E Guy Olinger, K2AV wrote: > Hi, Dave, > > If what you are saying is that you want to hear a different band of > tone in each ear, say 400-550 in the left ear and 550-700 in the > right, that is easily done by setting the shift. Set the shift for > the left as you want it for main RX. Then hold BSET to get b SEt > display, the shift control will now move the heard tones bandwidth in > the subreceiver. Adjust the shift for the right ear. > > There are a plethora of adjustments available in the K3, and they are > being extended by Elecraft based on the user community. Takes a bit > of time to learn them. > > 73, Guy > > - Original Message - From: "David Gilbert" > > To: > Sent: Monday, February 02, 2009 2:45 AM > Subject: [Elecraft] CW Pitch >> >> I only completed my new K3 (complete with subreceiver) a couple of days >> ago, and it's my first experience with true dual receive with stereo >> headphones. I suppose that with time and practice I'll become more >> proficient at copying different signals in each ear, but at present I >> find it easier to do so if the CW pitch in one ear is different than in >> the other ear. With a really narrow bandwidth (say 250 HZ roofing and >> 200 Hz DSP), though, there isn't much room for a shift in tone before >> the desired signal starts sliding down the skirt. Is there any way to >> set the CW pitch separately for the main receiver and the subreceiver? >> I've searched both the manual and the reflector archives and haven't >> found any mention of separate pitch at all, either yes or no. >> >> Thanks much es 73, >> Dave AB7E >> > > > __ 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: Question on ESSB TX EQ
> The manual indicates than when ESSB is turned on, the TX EQ menu > function becomes TX* EQ (or something along those lines). I don't see > that happening. The errata sheet should indicate this feature is not yet implemented. 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
[Elecraft] K3: Question on ESSB TX EQ
The manual indicates than when ESSB is turned on, the TX EQ menu function becomes TX* EQ (or something along those lines). I don't see that happening. Did I miss something, or is this one of those features still to be implemented? Thanks ... Grant/NQ5T __ 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] Recalling CONFIG Settings
The K3 Utility saves CONFIG settings plus calibration data plus the current control settings; everything that is erased by EE INIT. See the "configuration" tab of the K3 Utility and the associated discussion in K3 Utility Help. Configuration data is saved in a file in your PC file system. The file's name and location are under your control. The K3 Utility provides a "default" location in the "Application Data" for configuration files. It's adjacent to the folder that stores firmware files. The default location for user-specific application data varies by operating system. On Windows XP, the location is often c:\Documents and Settings\userName\Application Data\Elecraft\K3 Configuration. When you save a configuration, you are shown a "save file" dialog that allows you to change the filename, and you can navigate to any folder you like to receive the configuration. You probably can use just the default folder location. If you change the location during save configuratoin, the K3 Utility will remember the new location and give you that choice first on subsequent save and restore operations. Config save creates a filename based on the serial number of the radio and the current date and time, but you can name the file anything you like that makes more sense to you. Dick, K6KR From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Roy Morris Sent: Monday, February 02, 2009 7:19 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Recalling CONFIG Settings I would like to back up my CONFIG settings without having to go through each one and writing it down. Does the SAVE K3 CONFIGURATION AS button in the ELECRAFT K3 UTILITY do this? If so, where is it saved? I thought I would look before I leap. Thanks. Roy Morris W4WFB __ 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 AM reception
Hi Bill, Supposedly my S/N has the mods already. Nevertheless, I don't use the line output for anything normally and speakers are for listening to music. I won't be wasting my time looking for the problem if I wasn't actually hearing it too in my good quality headphones. Regards, Wes --- On Mon, 2/2/09, Bill W4ZV wrote: > From: Bill W4ZV > Subject: Re: [Elecraft] K3 AM reception > To: elecraft@mailman.qth.net > Date: Monday, February 2, 2009, 10:01 AM > Wes Stewart wrote: > > > > Following are links to plots that demonstrate some of > the "fun" I'm > > having. The first two are taken using Spectrum Lab to > look at the Line > > Out audio signal from the K3. The input signal is > from a homebrew 28.7 > > MHz crystal oscillator/buffer with about a -70 dBm > output level. For > > these particular plots the K3 mode was set to LSB, > although I saw, but > > didn’t record the same issue on CW. The beat note > is 450 Hz. The Line Out > > is run into the microphone input of the built-in sound > card in my Lenovo > > T400 laptop. Care was taken to insure that the sound > card wasn't being > > overdriven. > > > > Have you done the AF Stage Upgrade? > > "While the K3's speaker and line outputs meet the > original K3 distortion > specifications at their intended levels of operation, > we've found that > further improvement is possible, especially at higher > volume levels, with > minor component changes. Low level distortion products can > be further > reduced at both outputs. These changes are being > incorporated into new K3s." > > http://www.elecraft.com/K3/mods/K3_AF_Stage_Upgrade_Instructions_Rev_B.pdf > > Do you notice the same distortion when using the headphone > output? I have > good ears and a lot of experience on CW. All 3 of the K3s > I've had have > excellent audio fidelity when using a good set of > headphones (headphone > output has apparently never had this problem). This also > sounds very > similar to UR5LAM's issue posted about some 3 months > ago, which I believe > resulted in the above mod. > > 73, Bill > > -- > View this message in context: > http://n2.nabble.com/K3-AM-reception-tp2254009p2259061.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] Suggestion
Good point. The Utility will let you snap a baseline of your rig settings, today. What may be easier to use also is, upon finalizing your settings on the K3, you snap the baseline of the config via the Utility. Time passes and you screw up your K3 config.. you get it out of wack and want to go back (or more important know exactly what you changed between then and now).. I'd rather see the Utility give you a display or file of what the deltas are between the last known baseline and current. No sense in sifting through two lists of all-config terms and look for the diffs. Let the Utility do the 'diff -bu baseline current | less' The Was/Is deltas on current-screwed-up K3 and last baseline of K3 may reveal just a very small handful of attributes (config settings) that are deviate. This capability should be in the Utility, and it (as well as every other function in the Utility) should be a plugin so other ham radio controlling software can make use if it in their interfaces... Just a pet peave of mine. No API to the Utility... snort huff puff grumble. > It's probably a good idea for everyone to store a known good configuration > every now and then...just in case. If you ever need to do a full EE INIT > (Page 61 of Revision D-1 Manual) reset, you'll be glad you did! > > 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
[Elecraft] [K3] K3 owner in spe
>Any comments >regarding the suitability of the following configuration for the mentioned >purposed will be appreciated. K3/100-F (100 W Transceiver KPA3-F (ATU 100W) KRX3 (Subreceiver) KTCXO3-1 (Stable oscillator) KUSB (USB) KDVR3 (Digital Voice Recorder) KXV3 RX Ant 2 pcs KFL3A-2.8_2.7sw replacement K3 and KRX3 2 pcs KFL3A-1.8 K SSB 2 pcs KFL3A-250 CW 2 pcs KFL3A-6K AM 2 pcs KFL3B-FM FM Kenwood MC-60 microphone Kjeld, You have a very complete configuration here. If you want to save some money you might drop the wide filters for the Sub Rx as they probably won't help you attain your stated DXCC goals. They might help bag some broadcast band DX if that is important to you. You may or may not need the KXV3 for Rx antenna as the sub receiver allows you to install a receive antenna BNC connector without the KXV3. The KPA3-F also adds a second RF connector for transmit/receive. Study the antenna switching part of the manual and determine if you need the KXV3 for your stated purpose of adding an Rx antenna. I don't have the KXV3 and I do have a separate Rx antenna port. If a band scope is important down the road you will need the KXV3. Depending on your operating style the band scope would help you attain your goals, your mileage may vary. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 __ 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 Narrow CW Filter
Barry - That works really well!! Thanks... 73 de K1ESE John Barry N1EU wrote: > > John Huffman-3 wrote: > >> I have a second question. I liked to run my Orion on CW with the AF gain >> up, RF gain down, narrow filter and NR on. That way it listening to the >> other station was like listening to a code practice oscillator. On the >> K3 I still get background hiss with the noise reduction on. Are there >> better settings to use to get the sound I want with no background noise? >> >> > In the config menu, turn on the AF LIM (start with a setting of 15-20 and > adjust to your ears) and turn off AGC. You may also want to narrow down the > cw bandwidth. This will deliver the effect you are looking for. > > 73, > Barry N1EU > > __ 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 AM reception
Wes Stewart wrote: > > For the second plot, *nothing* has been changed except the AGC button was > toggled to "Fast." > > http://k6mhe.com/n7ws/K3_AGC_Fast.jpg > Very interesting - looks like an 80hz signal from somewhere is mixing with the fundamental. 73, Barry N1EU -- View this message in context: http://n2.nabble.com/K3-AM-reception-tp2254009p2259143.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] Suggestion
> > If you know what caused the problem, it's fairly simple to undo > anything in > the K3 (e.g. tapping METER while in CONFIG gives you the default > setting for > most parameters). I believe the question was how to recover if you get > yourself into an unknown state and don't know how you got there. I the original question was if you turn the wrong knob in the CONFIG mode and change a setting when you meant to move to the next item in the menu, is there an easy way to 'undo' the change you've just inadvertently made. If you haven't "tuned" many settings, yes, just tap METER and put it back to default. If you've made a recent backup, sure you just restore the radio. it's an easy programming mod to store the current state of a setting so an undo key could pop it back if you bumped the wrong knob it come in handy for someone. It's not a big deal, just a suggestion. Adam - ka7ark __ 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 AM reception
Wes Stewart wrote: > > Following are links to plots that demonstrate some of the "fun" I'm > having. The first two are taken using Spectrum Lab to look at the Line > Out audio signal from the K3. The input signal is from a homebrew 28.7 > MHz crystal oscillator/buffer with about a -70 dBm output level. For > these particular plots the K3 mode was set to LSB, although I saw, but > didn’t record the same issue on CW. The beat note is 450 Hz. The Line Out > is run into the microphone input of the built-in sound card in my Lenovo > T400 laptop. Care was taken to insure that the sound card wasn't being > overdriven. > Have you done the AF Stage Upgrade? "While the K3's speaker and line outputs meet the original K3 distortion specifications at their intended levels of operation, we've found that further improvement is possible, especially at higher volume levels, with minor component changes. Low level distortion products can be further reduced at both outputs. These changes are being incorporated into new K3s." http://www.elecraft.com/K3/mods/K3_AF_Stage_Upgrade_Instructions_Rev_B.pdf Do you notice the same distortion when using the headphone output? I have good ears and a lot of experience on CW. All 3 of the K3s I've had have excellent audio fidelity when using a good set of headphones (headphone output has apparently never had this problem). This also sounds very similar to UR5LAM's issue posted about some 3 months ago, which I believe resulted in the above mod. 73, Bill -- View this message in context: http://n2.nabble.com/K3-AM-reception-tp2254009p2259061.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 Narrow CW Filter
Adding a little to these comments: I operate a lot of CW on traffic nets, and with props the way they are, often have to deal with pretty weak signals on 40m. The NR function works well to make an apparent improvement in the signal-to-noise ration to a significant and useful degree; however the leading edge of each character is somewhat attenuated, with the amount of attenuation decreasing over several dots worth for each character. During the space between characters and words the attenuation is "reset" so that it starts all over on the next character. The effect is to make the first few elements of each character hard to pick up, though later elements are nice and clear. Put simply, the NR gives a "mushy" effect to the code (at about 20-25 wpm). I suppose this is a function of the DSP "training" itself to find the best possible S/N ratio in a relatively short time. If this "training" could be remembered just a little longer so that it remained constant for a train of words, it would be much more useful. Haven't tried it at higher speeds since the nets all run at about the same speed. Just my $.02! 73, Van W1WCG - Original Message - From: "WILLIS COOKE" To: ; "Darwin, Keith" Sent: Monday, February 02, 2009 11:01 AM Subject: Re: [Elecraft] K3 Narrow CW Filter >I have not found NR to be useful for CW reception. It distorts the signal >even on the lowest setting and to me makes the signal harder to copy than >without NR. I use 50 and 100 HZ DSP a lot and these narrow settings seem >to improve the signal to noise level a lot. > > I just finished a lot of operation as K3Y/5 where a number of operators > were having a competition to see how low they could set their power and > still make a sort of contact. It gave me a lot of practice in copying ESP > level signals with the other guy running well less than a watt. I have > the 8 pole 250 Hz filter, but I think the DSP filter is doing the heavy > lifting. > > So far, I have not found the NR to be useful for SSB or CW. > > Willis 'Cookie' Cooke > K5EWJ, K3 1025 > > > --- On Mon, 2/2/09, Darwin, Keith wrote: > >> From: Darwin, Keith >> Subject: Re: [Elecraft] K3 Narrow CW Filter >> To: elecraft@mailman.qth.net >> Date: Monday, February 2, 2009, 7:50 AM >> NR in the K3 is a tool that primarily turns the volume down. >> Well, in >> all fairness, it does so selectively, turning down the >> noise more than >> the signal, but it does result in a reduction in signal >> even though the >> S/N ratio gets better. I'm thinking at 100 hz, there >> is so little noise >> for NR to process that it is easier for the signal to get >> treated as >> noise and to be attenuated. >> >> You may find you get the rig to sound better if you quit >> using NR and >> adjust the AGC slope or threshold instead. Set the AGC >> threshold higher >> and reduce the ratio a bit. This will help to generate >> more of a ratio >> between the signal and background noise. >> >> ESE - nice call by the way ! >> >> 73 >> >> - Keith N1AS - >> - K3 711 - >> >> -Original Message- >> From: elecraft-boun...@mailman.qth.net >> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John >> Huffman >> Sent: Monday, February 02, 2009 10:05 AM >> To: elecraft@mailman.qth.net >> Subject: [Elecraft] K3 Narrow CW Filter >> >> I'm getting used to my new K3, but have a question. >> >> My K3 has the 400hz 8-pole filter and the latest firmware. >> I've noticed >> that the difference between running the DSP filter at 100hz >> and 150hz is >> greatly increased volume at 150hz. With the NR on (F2-4) >> easy listening >> at 100hz will bow your ears out at 150hz. Is this just me? >> I run AF >> gain at 9 o'clock and RF gain at 12 o'clock. >> >> I have a second question. I liked to run my Orion on CW >> with the AF gain >> up, RF gain down, narrow filter and NR on. That way it >> listening to the >> other station was like listening to a code practice >> oscillator. On the >> K3 I still get background hiss with the noise reduction on. >> Are there >> better settings to use to get the sound I want with no >> background noise? >> >> Thanks in advance. >> >> 73 de K1ESE >> John >> >> __ >> 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:
Re: [Elecraft] K3 Narrow CW Filter
John Huffman-3 wrote: > > I have a second question. I liked to run my Orion on CW with the AF gain > up, RF gain down, narrow filter and NR on. That way it listening to the > other station was like listening to a code practice oscillator. On the > K3 I still get background hiss with the noise reduction on. Are there > better settings to use to get the sound I want with no background noise? > In the config menu, turn on the AF LIM (start with a setting of 15-20 and adjust to your ears) and turn off AGC. You may also want to narrow down the cw bandwidth. This will deliver the effect you are looking for. 73, Barry N1EU -- View this message in context: http://n2.nabble.com/K3-Narrow-CW-Filter-tp2258338p2258918.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 AM reception
--- On Sun, 2/1/09, Jim Garland <4cx2...@muohio.edu wrote: > I've been reading a thread on another email reflector about the K3's audio > response on AM. One of the reflector participants is a serious SWBC listener > and is very dissatisfied with his K3's AM audio. He has pointed out a few > things about the K3 AM response which puzzle me. Here they are: >"My K3 sounds the same as others I've heard which I consider to be absolutely terrible when using an external speaker and beyond absolutely terrible when using the internal speaker! The 6KHz roofing filter in the K3 will provide an audio bandwidth of up to 3KHz and the FM 13KHz roofing filter will enable the DSP to provide the user with an audio bandwidth of approximately 4.5KHz I've been told by Elecraft." > He also says that "Re the bandwidth, a short time ago Elecraft made a mod to > the firmware so that audio bandwidth and not IF bandwidth was displayed on > the K3's screen. If you're seeing 5KHz and you don't have FM filter installed > then it sounds like yet another bug." >His particular complaint is audio clicks on AM when hard consonants (Ts, Ks, >etc) are spoken, a problem that he says has been confirmed by other users. >He has installed all the audio mods in his radio, but they didn't fix the >problem. >This was all news to me. I've not used my K3 extensively on AM, and maybe my >ears aren't as sensitive as his, but I've not noticed any problem. I have the >6 kHz roofing filter in my radio, and the DSP BW goes up to 5 kHz, which he >says is a bug, and that the actual BW is only 3kHz. > So my questions are: (1) Is audio distortion on AM a known problem with the > K3? (2) What does the LCD BW actually read? Is it an IF BW, an audio BW, or > what, and does the displayed BW actually corresond to reality? Tnx, Jim W8ZR Answer to (1). Yes. At least in my K3 and it's not limited to AM. I've been trying to determine the cause of this for the month that I've been using it. I didn't really want to pay $2,200 for another science project and would much rather be working on antennas though. My experiments now suggest the problem (or at least one of the problems) is AGC related. Following are links to plots that demonstrate some of the "fun" I'm having. The first two are taken using Spectrum Lab to look at the Line Out audio signal from the K3. The input signal is from a homebrew 28.7 MHz crystal oscillator/buffer with about a -70 dBm output level. For these particular plots the K3 mode was set to LSB, although I saw, but didn’t record the same issue on CW. The beat note is 450 Hz. The Line Out is run into the microphone input of the built-in sound card in my Lenovo T400 laptop. Care was taken to insure that the sound card wasn't being overdriven. The K3 DSP bandwidth is set to default values, as are the AGC parameters and the crystal filter is a 2.8 KHz, 8-pole. (Note: all of these adjustments affect the results. Trying to categorize them all would drive one crazy. If you don’t like the answer, turn a knob.) The first plot is with the AGC set to "Slow." http://k6mhe.com/n7ws/K3_AGC_Slow.jpg For the second plot, *nothing* has been changed except the AGC button was toggled to "Fast." http://k6mhe.com/n7ws/K3_AGC_Fast.jpg For a sanity check, the third plot is from the aux audio output of my Kenwood TS-870S while it is tuned to the same signal as the K3. http://k6mhe.com/n7ws/TS_870.jpg Now it might be argued that these artifacts are at such a low level they would not be audible as distortion. Maybe, but they represent essentially a "static" situation. When listening to a string of dots sent with my '870 the difference between fast and slow AGC is clearly audible. When the signal is S4 or 5, with fast AGC there is garbage that essentially sounds like an increased noise level. A simple test such as tuning in WWV and listening to the voice ID and hearing the audio distortion and syllabic "clicking" disappear when simply turning the AGC off and turning the RG gain down appropriately indicates a real problem. If there are K3s out there that don't do this, then I want one of them. Wes N7WS __ 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] K3 owner in spe
In which case you will also require the AM & FM filters. 73 Stewart G3RXQ On Mon, 2 Feb 2009 17:24:22 +0100, Kjeld Holm wrote: > Dear Stewart > > Would like to be ready for any mode that the DX will be running when the > band is open and I am QRV. > > Vy 73 > OZ1CCM Kjeld > > > -Original Message- > From: Stewart Baker [mailto:stew...@baker.nildram.co.uk] > Sent: 2. februar 2009 17:16 > To: Kjeld Holm; elecraft@mailman.qth.net > Subject: Re: [Elecraft] [K3] K3 owner in spe > > Dear Kjeld, > You don't say what modes you are intending to operate. > > I have removed all the extra filters from the list as I have found the > standard filter offering from Elecraft to be up to the job on both SSB and > CW. However, you might consider adding a 400Hz filter for CW if that is your > main interest. > > The frequency stability of the K3 is excellent, so no need for the high spec > oscillator. > > I have added a Heil headset, as although I have a love/hate relationship > with mine with regard to comfort, and it is way too expensive, it does work > well. > > So this is my list... > K3/100-F (100 W Transceiver > KPA3-F (ATU 100W) > KRX3 (Subreceiver) > KUSB (USB) > KDVR3 (Digital Voice Recorder) > KXV3 RX Ant > Heil Pro Headset > > Hope that this helps. > > 73 > Stewart G3RXQ __ 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 Narrow CW Filter
Thanks to all for the replies. Stewart identified the problem. It was self-inflicted. I had set the RX EQ to optimize the CW shift frequency and retard all other frequencies. Undoing that solved the problem. Thanks!! As for DSP and narrow CW bandwidths, it is the "smart squelch" that I am trying to achieve. I know most Orion owners complain about the NR, but for me the NR in the current Orion firmware does exactly what I wanted. The best NR I have ever heard (my opinion) was my Omni 6+. The NR removed the background noise AND peaked the CW signal. Signals jumped out of the noise. 73 de K1ESE John GW0ETF wrote: > John Huffman-3 wrote: > >> I'm getting used to my new K3, but have a question. >> >> My K3 has the 400hz 8-pole filter and the latest firmware. I've noticed >> that the difference between running the DSP filter at 100hz and 150hz is >> greatly increased volume at 150hz. With the NR on (F2-4) easy listening >> at 100hz will bow your ears out at 150hz. Is this just me? I run AF >> gain at 9 o'clock and RF gain at 12 o'clock. >> >> >> > > John, > > I had the following from Vic K2VCO in response to a post by me about Noise > Reduction and RX Equalisation settings - I had it boosted at the cw sidetone > frequency to give an accentuated effect with NR but found my audio dropped > when I reduced the b/w beyond the 150 Hz point. So you may want to > check/play with your RX Eq settings > > ""This is not the best approach because of the following: when the 50 and > 100 Hz DSP filters are enabled the RX EQ is disabled (I forgot the > reason for this, but Lyle explained it to me). So the effect of > narrowing the bandwidth is that the signal suddenly drops several dB! > > If you want to use the RX EQ for this the best way to do it is to leave > the desired bands at 0 dB and *reduce* all others by the amount of > 'boost' that you prefer. > __ 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] K3 owner in spe
Dear Stewart Would like to be ready for any mode that the DX will be running when the band is open and I am QRV. Vy 73 OZ1CCM Kjeld -Original Message- From: Stewart Baker [mailto:stew...@baker.nildram.co.uk] Sent: 2. februar 2009 17:16 To: Kjeld Holm; elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] K3 owner in spe Dear Kjeld, You don't say what modes you are intending to operate. I have removed all the extra filters from the list as I have found the standard filter offering from Elecraft to be up to the job on both SSB and CW. However, you might consider adding a 400Hz filter for CW if that is your main interest. The frequency stability of the K3 is excellent, so no need for the high spec oscillator. I have added a Heil headset, as although I have a love/hate relationship with mine with regard to comfort, and it is way too expensive, it does work well. So this is my list... K3/100-F (100 W Transceiver KPA3-F (ATU 100W) KRX3 (Subreceiver) KUSB (USB) KDVR3 (Digital Voice Recorder) KXV3 RX Ant Heil Pro Headset Hope that this helps. 73 Stewart G3RXQ __ 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] K3 owner in spe
Dear Kjeld, You don't say what modes you are intending to operate. I have removed all the extra filters from the list as I have found the standard filter offering from Elecraft to be up to the job on both SSB and CW. However, you might consider adding a 400Hz filter for CW if that is your main interest. The frequency stability of the K3 is excellent, so no need for the high spec oscillator. I have added a Heil headset, as although I have a love/hate relationship with mine with regard to comfort, and it is way too expensive, it does work well. So this is my list... K3/100-F (100 W Transceiver KPA3-F (ATU 100W) KRX3 (Subreceiver) KUSB (USB) KDVR3 (Digital Voice Recorder) KXV3 RX Ant Heil Pro Headset Hope that this helps. 73 Stewart G3RXQ __ 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 Narrow CW Filter
John Huffman-3 wrote: > > I'm getting used to my new K3, but have a question. > > My K3 has the 400hz 8-pole filter and the latest firmware. I've noticed > that the difference between running the DSP filter at 100hz and 150hz is > greatly increased volume at 150hz. With the NR on (F2-4) easy listening > at 100hz will bow your ears out at 150hz. Is this just me? I run AF > gain at 9 o'clock and RF gain at 12 o'clock. > > John, I had the following from Vic K2VCO in response to a post by me about Noise Reduction and RX Equalisation settings - I had it boosted at the cw sidetone frequency to give an accentuated effect with NR but found my audio dropped when I reduced the b/w beyond the 150 Hz point. So you may want to check/play with your RX Eq settings ""This is not the best approach because of the following: when the 50 and 100 Hz DSP filters are enabled the RX EQ is disabled (I forgot the reason for this, but Lyle explained it to me). So the effect of narrowing the bandwidth is that the signal suddenly drops several dB! If you want to use the RX EQ for this the best way to do it is to leave the desired bands at 0 dB and *reduce* all others by the amount of 'boost' that you prefer. -- 73, Vic, K2VCO "" All this cross referencing of previous posts would be so much easier if each post was numbered as on some other reflectors. 73, Stewart Rolfe, GW0ETF -- View this message in context: http://n2.nabble.com/K3-Narrow-CW-Filter-tp2258338p2258751.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 Narrow CW Filter
John Huffman-3 wrote: > > > My K3 has the 400hz 8-pole filter and the latest firmware. I've noticed > that the difference between running the DSP filter at 100hz and 150hz is > greatly increased volume at 150hz. With the NR on (F2-4) easy listening > at 100hz will bow your ears out at 150hz. Is this just me? I run AF > gain at 9 o'clock and RF gain at 12 o'clock. > > I have a second question. I liked to run my Orion on CW with the AF gain > up, RF gain down, narrow filter and NR on. That way it listening to the > other station was like listening to a code practice oscillator. On the > K3 I still get background hiss with the noise reduction on. Are there > better settings to use to get the sound I want with no background noise? > NR is actually not doing much to improve S/N at low BW settings. The same was true for Orion (which I used for 4 years). While NR might be useful at SSB bandwidths, it's probably just fooling you at narrow CW bandwidths. Read from the horse's mouth below and especially note #6. 73, Bill http://www.zerobeat.net/mediawiki/index.php/K3_DSP NR explained by Lyle Johnson KK7P I think there is a fundamental misunderstanding of what NR is and how it works, at least in the context of the K3. 1) NR is better named SE (signal enhancer). 2) It is a "short" FIR filter whose coefficients are continuously being recalculated. 3) It defaults to suppressing everything. 4) When it senses that there is something that correlates (i.e., has a pattern that doesn't seem to be entirely random), it attempts to build a filter around those frequencies that seem less random. 5) Because the FIR filter that is being implemented is short, the filter being built is less selective than the normal DSP filters in the radio. 6) NR is rarely useful if the bandwidth is narrow. If you set your CW width to 400 Hz or less, for example, there is no point in running NR *unless* you want to use it as a sort-of "smart squelch." 7) The narrower you set your WIDTH, the more that noise appears like a signal, and the worse the NR will perform. And the less noise there is anyway, assuming there is a signal present. NR cannot compete with a narrow filter, and was not designed to. 8) I find NR most useful during CW operation with the 2.8 kHz roofing filter NORM'ed so the Rx bandwidth is wide. Assuming band activity is low, the Rx is quiet. If a CW station comes on within the Rx passband, a filter will be built around the station and I can hear it. 9) Similarly, I find NR in SSB is mostly useful as a sort of squelch when tuning around, or monitoring a frequency you are expecting a call on (probably a net or a sked). I use NR1-1 or NR1-2 for this. Mild suppression, not too much impact on fidelity, and lets me hear weak signals, too. I hope this is helpful in better understanding how NR is implemented in the K3. -- View this message in context: http://n2.nabble.com/K3-Narrow-CW-Filter-tp2258338p2258733.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] K3 owner in spe
Dear all, I have plans for a K3. I am spending most of my time on the HF bands hunting for new countries looking forward to make my 5 band DXCC with 300+ countries in the next 10 years. Have room for modest antennas only. Any comments regarding the suitability of the following configuration for the mentioned purposed will be appreciated. K3/100-F (100 W Transceiver KPA3-F (ATU 100W) KRX3 (Subreceiver) KTCXO3-1 (Stable oscillator) KUSB (USB) KDVR3 (Digital Voice Recorder) KXV3 RX Ant 2 pcs KFL3A-2.8_2.7sw replacement K3 and KRX3 2 pcs KFL3A-1.8 K SSB 2 pcs KFL3A-250 CW 2 pcs KFL3A-6K AM 2 pcs KFL3B-FM FM Kenwood MC-60 microphone Vy 73 OZ1CCM Kjeld __ 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 Narrow CW Filter
I have not found NR to be useful for CW reception. It distorts the signal even on the lowest setting and to me makes the signal harder to copy than without NR. I use 50 and 100 HZ DSP a lot and these narrow settings seem to improve the signal to noise level a lot. I just finished a lot of operation as K3Y/5 where a number of operators were having a competition to see how low they could set their power and still make a sort of contact. It gave me a lot of practice in copying ESP level signals with the other guy running well less than a watt. I have the 8 pole 250 Hz filter, but I think the DSP filter is doing the heavy lifting. So far, I have not found the NR to be useful for SSB or CW. Willis 'Cookie' Cooke K5EWJ, K3 1025 --- On Mon, 2/2/09, Darwin, Keith wrote: > From: Darwin, Keith > Subject: Re: [Elecraft] K3 Narrow CW Filter > To: elecraft@mailman.qth.net > Date: Monday, February 2, 2009, 7:50 AM > NR in the K3 is a tool that primarily turns the volume down. > Well, in > all fairness, it does so selectively, turning down the > noise more than > the signal, but it does result in a reduction in signal > even though the > S/N ratio gets better. I'm thinking at 100 hz, there > is so little noise > for NR to process that it is easier for the signal to get > treated as > noise and to be attenuated. > > You may find you get the rig to sound better if you quit > using NR and > adjust the AGC slope or threshold instead. Set the AGC > threshold higher > and reduce the ratio a bit. This will help to generate > more of a ratio > between the signal and background noise. > > ESE - nice call by the way ! > > 73 > > - Keith N1AS - > - K3 711 - > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John > Huffman > Sent: Monday, February 02, 2009 10:05 AM > To: elecraft@mailman.qth.net > Subject: [Elecraft] K3 Narrow CW Filter > > I'm getting used to my new K3, but have a question. > > My K3 has the 400hz 8-pole filter and the latest firmware. > I've noticed > that the difference between running the DSP filter at 100hz > and 150hz is > greatly increased volume at 150hz. With the NR on (F2-4) > easy listening > at 100hz will bow your ears out at 150hz. Is this just me? > I run AF > gain at 9 o'clock and RF gain at 12 o'clock. > > I have a second question. I liked to run my Orion on CW > with the AF gain > up, RF gain down, narrow filter and NR on. That way it > listening to the > other station was like listening to a code practice > oscillator. On the > K3 I still get background hiss with the noise reduction on. > Are there > better settings to use to get the sound I want with no > background noise? > > Thanks in advance. > > 73 de K1ESE > John > > __ > 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] Recalling CONFIG Settings
Roy, Yes, that is what that funcion in the utility program is for. I believe when you save it a window will pop up and you will see what the file path is. It is probably a sub folder where the utility program resides. Another thing you can do is run Ham Radio Deluxe. There is an Extended Menu Option (I think thats what its called but not sure) and when you run it you get a print out all the K3 parameters and settings. Neat tool. - 73, Greg - AB7R Whidbey Island WA NA-065 On Mon Feb 2 7:18 , "Roy Morris" sent: > > > > > > > >I would like to back up my CONFIG settings without having to >go through each one and writing it down. Does the SAVE K3 CONFIGURATION AS >button in the ELECRAFT K3 UTILITY do this? If so, where is it saved? >I thought I would look before I leap. Thanks.  Roy Morris >W4WFB __ 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 Narrow CW Filter
NR in the K3 is a tool that primarily turns the volume down. Well, in all fairness, it does so selectively, turning down the noise more than the signal, but it does result in a reduction in signal even though the S/N ratio gets better. I'm thinking at 100 hz, there is so little noise for NR to process that it is easier for the signal to get treated as noise and to be attenuated. You may find you get the rig to sound better if you quit using NR and adjust the AGC slope or threshold instead. Set the AGC threshold higher and reduce the ratio a bit. This will help to generate more of a ratio between the signal and background noise. ESE - nice call by the way ! 73 - Keith N1AS - - K3 711 - -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Huffman Sent: Monday, February 02, 2009 10:05 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 Narrow CW Filter I'm getting used to my new K3, but have a question. My K3 has the 400hz 8-pole filter and the latest firmware. I've noticed that the difference between running the DSP filter at 100hz and 150hz is greatly increased volume at 150hz. With the NR on (F2-4) easy listening at 100hz will bow your ears out at 150hz. Is this just me? I run AF gain at 9 o'clock and RF gain at 12 o'clock. I have a second question. I liked to run my Orion on CW with the AF gain up, RF gain down, narrow filter and NR on. That way it listening to the other station was like listening to a code practice oscillator. On the K3 I still get background hiss with the noise reduction on. Are there better settings to use to get the sound I want with no background noise? Thanks in advance. 73 de K1ESE John __ 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] Recalling CONFIG Settings
Roy Morris-6 wrote: > > I would like to back up my CONFIG settings > One more point. The Utility Configuration Save is saving much more than just your CONFIG settings. It saves EVERYTHING including all calibration constants. So anytime you do a recalibration, change your XFIL parameters, etc you should do a new Configuration Save. If you have trouble putting your K3 into a particular mode, you can also use SAVE/RESTORE to do that. For example if you had a complex setup using a Transverter, you could save that under a separate "Transverter" file and recall it whenever you wanted to go into that mode. 73, Bill -- View this message in context: http://n2.nabble.com/Recalling-CONFIG-Settings-tp2258408p2258559.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] Recalling CONFIG Settings
Roy Morris-6 wrote: > > I would like to back up my CONFIG settings without having to go through > each one and writing it down. Does the SAVE K3 CONFIGURATION AS button in > the ELECRAFT K3 UTILITY do this? If so, where is it saved? I thought I > would look before I leap. Thanks. Roy Morris W4WFB > Yes that's what it does. I'm away from my rig at the moment but I believe the Utility tells you where it saves the file on your computer. It really doesn't matter because you'll see the same files when you use CONFIGURATION RESTORE. The files are normally named with S/N and a date code. You can also overwrite the suggested file name to whatever you want (e.g. "KRX3installed"). Earlier I checked the time to do a SAVE and it took ~53 seconds on my old 1.1G computer and the K3 running at 38,400. I didn't check the time for RESTORE but imagine it would be about the same. I would much rather Elecraft be spending their time adding functionality like VFO IND than creating an UNDO button. It would be different if the RESTORE function took as long as an XP computer to restore, but 53 seconds seems quite reasonable to me and it's very easy to use. 73, Bill -- View this message in context: http://n2.nabble.com/Recalling-CONFIG-Settings-tp2258408p2258491.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] Newbie operational quirks?
On Mon, Feb 2, 2009 at 9:58 AM, Robert Naumann (via Nabble) wrote: > Bill, > > I don't have the sub rx, and as suggested, I tried holding SUB to toggle. > > It doesn't make any difference regardless of it showing LINK or UNLINK. I was responding to your comment... "> I now see that when I change frequency on VFOA, VFOB also changes to some > frequency in the same band as VFO A." ...which sounded like your VFOs were linked...i.e. when you moved VFOA, VFOB would track. > Band UP or Band Down - both VFOs go. Enter a freq for VFO A, VFO B follows > to the same band as VFO A - but not the same frequency. This is a different issue and is normal...until the VFO IND firmware is released. Some early versions have been used by Field Testers but Wayne has taken it back to the drawing boards for more work before we do more testing. 73, Bill W4ZV -- View this message in context: http://n2.nabble.com/K3---pace-of-development-tp2244953p2258439.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] Recalling CONFIG Settings
I would like to back up my CONFIG settings without having to go through each one and writing it down. Does the SAVE K3 CONFIGURATION AS button in the ELECRAFT K3 UTILITY do this? If so, where is it saved? I thought I would look before I leap. Thanks. Roy Morris W4WFB__ 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] Newbie operational quirks?
> Band UP or Band Down - both VFOs go. Enter a freq for VFO A, > VFO B follows to the same band as VFO A - but not the same frequency. That is normal operation - the VFOs can not be on different bands. If you enter a frequency on VFO A, VFO B will change to the last used VFO B frequency on the same band as VFO A. > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Robert Naumann > Sent: Monday, February 02, 2009 9:58 AM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] Newbie operational quirks? > > > Bill, > > I don't have the sub rx, and as suggested, I tried holding > SUB to toggle. > > It doesn't make any difference regardless of it showing LINK > or UNLINK. > > Band UP or Band Down - both VFOs go. Enter a freq for VFO A, > VFO B follows to the same band as VFO A - but not the same frequency. > > Bob W5OV > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill W4ZV > Sent: Monday, February 02, 2009 8:38 AM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] Newbie operational quirks? > > > > > Robert Naumann wrote: > > > > I now see that when I change frequency on VFOA, VFOB also > changes to > > some frequency in the same band as VFO A. Band up and band > down moves > > both VFOs also. This linked VFO behavior strikes me as "unusual". > > > > Sound like you've unintentionally LINKed the two VFOs. Hold > SUB to toggle between LINK and UNLINK. You probably want UNLINK. > > 73, Bill > > -- > View this message in context: > http://n2.nabble.com/K3---pace-of-development-tp2244953p2258214.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 __ 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 Narrow CW Filter
I'm getting used to my new K3, but have a question. My K3 has the 400hz 8-pole filter and the latest firmware. I've noticed that the difference between running the DSP filter at 100hz and 150hz is greatly increased volume at 150hz. With the NR on (F2-4) easy listening at 100hz will bow your ears out at 150hz. Is this just me? I run AF gain at 9 o'clock and RF gain at 12 o'clock. I have a second question. I liked to run my Orion on CW with the AF gain up, RF gain down, narrow filter and NR on. That way it listening to the other station was like listening to a code practice oscillator. On the K3 I still get background hiss with the noise reduction on. Are there better settings to use to get the sound I want with no background noise? Thanks in advance. 73 de K1ESE John __ 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] Suggestion
Adam Koczarski wrote: > Virtually every software application has an undo key. Backups are for major > restores, not for a mistaken edit. When's the last time you used a backup to > restore a document you mistakenly delete a word from?? Not quite the same > thing. > > Adam - ka7ark Every day. You'd be surprised how much trouble that little "save" button can cause when you dealing with data on a network. I've preached till I'm blue in the face NOT to modify data on the server but to copy it down, do your thing, then save it with a different related name back to the server where it gets backed up hourly. Don't get me started on Outlook personal folder files. -- R. Kevin Stover, ACØH __ 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] Newbie operational quirks?
Bill, I don't have the sub rx, and as suggested, I tried holding SUB to toggle. It doesn't make any difference regardless of it showing LINK or UNLINK. Band UP or Band Down - both VFOs go. Enter a freq for VFO A, VFO B follows to the same band as VFO A - but not the same frequency. Bob W5OV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill W4ZV Sent: Monday, February 02, 2009 8:38 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Newbie operational quirks? Robert Naumann wrote: > > I now see that when I change frequency on VFOA, VFOB also changes to some > frequency in the same band as VFO A. Band up and band down moves both VFOs > also. This linked VFO behavior strikes me as "unusual". > Sound like you've unintentionally LINKed the two VFOs. Hold SUB to toggle between LINK and UNLINK. You probably want UNLINK. 73, Bill -- View this message in context: http://n2.nabble.com/K3---pace-of-development-tp2244953p2258214.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] Newbie operational quirks?
Robert Naumann wrote: > > I now see that when I change frequency on VFOA, VFOB also changes to some > frequency in the same band as VFO A. Band up and band down moves both VFOs > also. This linked VFO behavior strikes me as "unusual". > Sound like you've unintentionally LINKed the two VFOs. Hold SUB to toggle between LINK and UNLINK. You probably want UNLINK. 73, Bill -- View this message in context: http://n2.nabble.com/K3---pace-of-development-tp2244953p2258214.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 transverter output question
Not sure if this is a question or observation. Saturday I was setting up a DEM transverter to be used with a K3 and found the low level output of the K3 is dependant upon the input attenuator setting on the DEM transverter. I set the max output on the K3 in the menu to 1.8 dbm , which the rig displayed. When the DEM was adjusted for max attenuation, the K3 showed 1.8 dbm but when I turned the attenuation pot on the DEM transverter to decrease the attenuation and get more output, the output of the K3 dropped to .7 dbm as noted on the K3 readout. A assume this is because the 10m input of the DEM is not 50 ohms but it just surprised me after dealing with many other rigs. I guess even the low level output is ALC controlled which would probably explain it. Terry - W8ZN __ 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] ELECRAFT KEY FOR SALE SAVE $ 100.00!!!
James, I am so sorry to hear about you hand problem. I'm sure this has been a terrible thing to deal with. I don't know your full situation, but may I be so bold as to suggest that perhaps you try learning to send with your other hand? I've often thought about doing that myself, but never followed through--at least not yet. I'm a leftie, and in a right handed world there are often things that just don't work very well using your left hand. For example, in my work I had a need to run an adding machine, and those don't lend themselves to a left handed user. So, I learned, and fairly quickly, to do it with my right hand. I suspect, in your situation, you will be forced to learn some things with your other hand, and using a paddle might be a good therapy to develop coordination in that opposite hand. If you are being forced to use your left hand now (I'm assuming you were right-handed), I can assure you that sending with the left hand--even without changing the paddle configuration--is very doable. It would certainly seem frustrating at first, but I bet you could do it, and very succesfully. There might even be very significant side benefits in helping you deal with other tasks. I hope this doesn't sound insensitive to your situation. I only mean to make this suggestion with the best of intentions. Dave W7AQK - Original Message - From: james scott To: AK3 Sent: Sunday, February 01, 2009 8:08 PM Subject: [Elecraft] ELECRAFT KEY FOR SALE SAVE $ 100.00!!! Due to problems with a partial hand amputation, I must sell my keys. I am now forced to use a keyboard. I have Elecraft Hex Key # E 0355 for sale. I am including a first class, heavy duty cord and plug. NONE is supplied when sold new. Condition is excellent with original box. Price is $ 135.00 and I'll pay the shipping in the USA . Outside US, additional funds required. Payment via U.S. Postal Money order or Paypal is preferred. Save close to $ 100.00 over new! Contact w...@hotmail.com for details. "WK3N NEVER SLEEPS !" Quote from Martti Lane, OH2BH. ( Proof available for SASE to WK3N) -- Windows Live™: E-mail. Chat. Share. Get more ways to connect. See how it works. -- __ 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] Newbie operational quirks?
Don, Memories: I'm tapping and not holding as far as I can tell, but I'll play with it some more. Regarding the contents of the VFOs: I'm not trying to operate cross band but instead just have one VFO on one band, and the other on a different band and just switch back and forth between them as single operating frequencies using A/B. I now see that when I change frequency on VFOA, VFOB also changes to some frequency in the same band as VFO A. Band up and band down moves both VFOs also. This linked VFO behavior strikes me as "unusual". Bob W5OV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Monday, February 02, 2009 7:50 AM To: Robert Naumann Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Newbie operational quirks? Bob, Independent bands is not yet available in the firmware. I know it is being addressed for the sub-receiver, but I am not certain about the possibility for cross-band operation with only the main receiver installed. When you try to store a memory, how long is your 'hit' on the V>M button? (it should be a TAP) Watch the VFO B area, and if you see "NO DVR" flash there, you are 'holding' the button instead of 'tapping' it. There should be no problem storing into an empty memory location. Yes, when a memory is recalled, both the VFO A and VFO B contents from that memory are recalled - that is normal behavior. 73, Don W3FPR Robert Naumann wrote: > I've only had my K3 for a little over a week. RX performance is great, but > I'm finding that some operational things don't work as I expect they should. > Perhaps I just to be pointed in the right direction to understand what is > happening? > > Frequency Memories: > I have been trying to store some frequencies in memories, and it seems that > sometimes it just does not work. I have the frequency selected and working, > I hit V>M, select an empty memory, hit V>M again which should store it. Then > I try to recall the memory with M>V, select that memory location and it's > blank? A couple of times I have somehow gotten a random frequency stored in > a memory location that does not correspond to anything I have tried to > store. It seems that once this happens, I can then overwrite that random > frequency with one that I want. That tells me that sometimes the memory that > are blank will not accept a new frequency? > > VFO A/B: (I do not have the second rx) > VFO A and VFO B seem to be tied to each other. When I change bands by > tapping Band^, both VFOs change band. Shouldn't they work independently? > When I recall a memory (those that have stored correctly) both VFO A and VFO > B get set to that memory frequency, mode etc. Is this behavior correct? > > Bob W5OV > > __ 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] CW Pitch
Guy, K2AV wrote: > > If what you are saying is that you want to hear a different band of tone > in > each ear, say 400-550 in the left ear and 550-700 in the right, that is > easily done by setting the shift. > Shift won't change the pitch/sidetone, it will just change the passband. It will attenuate the level of the cw signal as the passband moves away from the sidetone frequency, but it won't change the pitch. 73, Barry N1EU -- View this message in context: http://n2.nabble.com/CW-Pitch-tp2256863p2258090.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 problems
I, too, rarely have changed the RF gain in the past... So perhaps I've missed a change. Need to find another K3 close by and see if it does the same thing as mine. 73, Julius Julian, G4ILO wrote: > > > > Julius Fazekas n2wn wrote: >> >> there still seems to be latency with the RF gain pot. >> > I rarely touch the RF gain so I can't comment on that specifically, but > there is often a noticeable lag between turning the other front panel > controls and the value changing on the front panel display. This has been > the case ever since the firmware was split between the front panel and the > main MCU. So, depending on the extent of the delay, this may be normal. > -- View this message in context: http://n2.nabble.com/K3-problems-tp2253876p2258041.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] Mono audio
Is mixed sub/main mono audio still on the list? Line out audio needs to be mixed too. This need became evident when trying to work split RTTY using the subrx and an obviously mono TNC. CONFIG LINE OUT = PHONES already provides the "mixer" control. 73 de Brian/K3KO __ 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] Newbie operational quirks?
Bob, Independent bands is not yet available in the firmware. I know it is being addressed for the sub-receiver, but I am not certain about the possibility for cross-band operation with only the main receiver installed. When you try to store a memory, how long is your 'hit' on the V>M button? (it should be a TAP) Watch the VFO B area, and if you see "NO DVR" flash there, you are 'holding' the button instead of 'tapping' it. There should be no problem storing into an empty memory location. Yes, when a memory is recalled, both the VFO A and VFO B contents from that memory are recalled - that is normal behavior. 73, Don W3FPR Robert Naumann wrote: > I've only had my K3 for a little over a week. RX performance is great, but > I'm finding that some operational things don't work as I expect they should. > Perhaps I just to be pointed in the right direction to understand what is > happening? > > Frequency Memories: > I have been trying to store some frequencies in memories, and it seems that > sometimes it just does not work. I have the frequency selected and working, > I hit V>M, select an empty memory, hit V>M again which should store it. Then > I try to recall the memory with M>V, select that memory location and it's > blank? A couple of times I have somehow gotten a random frequency stored in > a memory location that does not correspond to anything I have tried to > store. It seems that once this happens, I can then overwrite that random > frequency with one that I want. That tells me that sometimes the memory that > are blank will not accept a new frequency? > > VFO A/B: (I do not have the second rx) > VFO A and VFO B seem to be tied to each other. When I change bands by > tapping Band^, both VFOs change band. Shouldn't they work independently? > When I recall a memory (those that have stored correctly) both VFO A and VFO > B get set to that memory frequency, mode etc. Is this behavior correct? > > Bob W5OV > > __ 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] CW Pitch
Hi, Dave, If what you are saying is that you want to hear a different band of tone in each ear, say 400-550 in the left ear and 550-700 in the right, that is easily done by setting the shift. Set the shift for the left as you want it for main RX. Then hold BSET to get b SEt display, the shift control will now move the heard tones bandwidth in the subreceiver. Adjust the shift for the right ear. There are a plethora of adjustments available in the K3, and they are being extended by Elecraft based on the user community. Takes a bit of time to learn them. 73, Guy - Original Message - From: "David Gilbert" To: Sent: Monday, February 02, 2009 2:45 AM Subject: [Elecraft] CW Pitch > > I only completed my new K3 (complete with subreceiver) a couple of days > ago, and it's my first experience with true dual receive with stereo > headphones. I suppose that with time and practice I'll become more > proficient at copying different signals in each ear, but at present I > find it easier to do so if the CW pitch in one ear is different than in > the other ear. With a really narrow bandwidth (say 250 HZ roofing and > 200 Hz DSP), though, there isn't much room for a shift in tone before > the desired signal starts sliding down the skirt. Is there any way to > set the CW pitch separately for the main receiver and the subreceiver? > I've searched both the manual and the reflector archives and haven't > found any mention of separate pitch at all, either yes or no. > > Thanks much es 73, > Dave AB7E > > __ > 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] Newbie operational quirks?
I've only had my K3 for a little over a week. RX performance is great, but I'm finding that some operational things don't work as I expect they should. Perhaps I just to be pointed in the right direction to understand what is happening? Frequency Memories: I have been trying to store some frequencies in memories, and it seems that sometimes it just does not work. I have the frequency selected and working, I hit V>M, select an empty memory, hit V>M again which should store it. Then I try to recall the memory with M>V, select that memory location and it's blank? A couple of times I have somehow gotten a random frequency stored in a memory location that does not correspond to anything I have tried to store. It seems that once this happens, I can then overwrite that random frequency with one that I want. That tells me that sometimes the memory that are blank will not accept a new frequency? VFO A/B: (I do not have the second rx) VFO A and VFO B seem to be tied to each other. When I change bands by tapping Band^, both VFOs change band. Shouldn't they work independently? When I recall a memory (those that have stored correctly) both VFO A and VFO B get set to that memory frequency, mode etc. Is this behavior correct? Bob W5OV __ 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- pace of development
The Microsoft's road map is mainly for the other folks that need to make changes to their software based upon the underlying structure of Microsoft's software. That is not the case for Elecraft and the K3. I would like to know maybe the upcoming big moves like maybe an integrated vhf/uhf module or integrated panadapter. But I suppose Larry Philips might be more interested. PS: I am holding off on a panadapter to see where Larry and Wayne decide to go. I love my LP-100 and the my K3, I hope maybe a panadapter collaboration would give us the best of both worlds. But whatever happens the world of "the radio" will be better. AB3EN Paul Fletcher wrote: > > > > R. Kevin Stover wrote: >> >> You don't think the R and D departments at Yaesu, Kenwood, and Icom >> wouldn't love to know what Elecraft plans are for development in the >> next year? >> > > I'm not sure if there are crossed purposes here or a genuine difference of > opinion. Personally I agree that publishing a roadmap for the development > of new products could be commercial suicide. However, the K3 is an > existing product and I am interested in what has or is going to change / > get fixed / get incorporated in the future. There have been a number of > discussions here where Lyle or Wayne has said they will go on the list to > get fixed / incorporated. I don't think that it is an unreasonable request > (to go on the existing list maybe :-) ) and it's not commercially > sensitive information (it's in the public domain anyway) and I can't see > what Elecraft's competitors would get that they haven't got already. > > 73's all Paul M1PAF > > - Dan AB3EN -- View this message in context: http://n2.nabble.com/K3---pace-of-development-tp2244953p2257581.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] Suggestion
Adam Koczarski wrote: > > > Virtually every software application has an undo key. Backups are for > major > restores, not for a mistaken edit. When's the last time you used a backup > to > restore a document you mistakenly delete a word from?? Not quite the same > thing. > > Adam - ka7ark > If you know what caused the problem, it's fairly simple to undo anything in the K3 (e.g. tapping METER while in CONFIG gives you the default setting for most parameters). I believe the question was how to recover if you get yourself into an unknown state and don't know how you got there. The K3 Utility's RESTORE CONFIG routine is very simple and only takes a few minutes. It's probably a good idea for everyone to store a known good configuration every now and then...just in case. If you ever need to do a full EE INIT (Page 61 of Revision D-1 Manual) reset, you'll be glad you did! 73, Bill -- View this message in context: http://n2.nabble.com/Suggestion-tp2247165p2257445.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 S-meter imrovement suggestion
Craig, there is one problem... The scale on the K3 is fixed courtesy of the LCD, so what you see is what you get, so to speak. 73 Dave, G4AON K3/100 #80 I would like to suggest the following as a possible future improvement to the K3's S-meters scale.. 73 Craig VK3HE __ 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 S-meter imrovement suggestion
I would like to suggest the following as a possible future improvement to the K3's S-meters scale.. We would have 2 switchable scales, the current scale and an alternate meter scale that uses the current S9+60db scale range to indicate signals only up to the S9 level. This would give a much wider dynamic range and improved s-meter resolution for signals up to S9. The current 20 bars would roughly give an indication of 3db per bar. If the signal shoots over S9 a flashing + sign would flash or the S-meter would automatically fallback to the standard K3 S-meter scale. Another possibility would be to switch in the attenuator automatically to keep the signal in the improved scales range if the signal is greater than S9. This feature could be applied only to the higher bands or any number of bands. This feature might not be very useful in places like Europe where 20db over S9 signals are routine on every band, however on quiet bands it could prove to be useful. I currently use a VU meter in a similar manner with the AGC off. This setup was first suggested by Wayne Overbeck N6NB in his many QST articles on antenna gain measurement. 73 Craig VK3HE __ 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] Questing On Tuning Different Band with SUB Receiver
Wayne .. I know that you are still working on the code to allow the SUB Receiver to tune a different Band than the MAIN Receiver. I will be using a K3 on 6M with two antennas connected to ANT-1 and ANT-2 - one a Yagi and the other Horizontal Loop. Sometimes both receivers will be used with the two 6M antennas. The K3 will be also be used with a XV-144 Transverter. At other times I'd like to use the Main Receiver on 6M, while monitoring 2M with the SUB Receiver. The only way I can see to have the XV-144 Receiver Active - while also being able to Transmit immediately - is to connect the XV-144 to the Transverter Input and Output. However these are only activated (I think) when the appropriate CONFIG item has been set to add the Transverter to the Band Up / Down Selector. My question is whether there's any way it will be possible to have 6M on one Receiver, and 2M on the other? It's not obvious to me which is why I decided to ask. 73>Dave, W9ZRX __ 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 problems
Julius Fazekas n2wn wrote: > > there still seems to be latency with the RF gain pot. > I rarely touch the RF gain so I can't comment on that specifically, but there is often a noticeable lag between turning the other front panel controls and the value changing on the front panel display. This has been the case ever since the firmware was split between the front panel and the main MCU. So, depending on the extent of the delay, this may be normal. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/K3-problems-tp2253876p2257059.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
