Re: [Elecraft] K3 Beta firmware rev. 2.46 -- 40 meter PA current reduction
Works great here Wayne. My antenna was a little grumpy on 40m, and didn't tune down as far as on the other bands. From what I hear, that is not unusual. But these changes have greatly improved how it tunes. Thanks! David Wilburn NM4M http://www.nm4m.com wayne burdick wrote: K3 beta-test firmware revision 2.46 is now available. Details appear below. Be sure to use the latest revision of K3 Utility to do the downloads. Please send any problem reports to [EMAIL PROTECTED] For instructions on how to load beta firmware, please see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 2.46 / DSP 1.92, 10-3-2008 * 40 METER PA CURRENT REDUCTION: This revision corrects the low-pass filter configuration used on 40 m. The 10/12 LPF, not the 6 m LPF, is now used in-line with the 40 m LPF. This optimizes return loss, keeping current at the target level at 100 W (about 20 A). Some K3s may have had 40-m current drain increase running rev 2.45. * NOTE ON AM COMPRESSION: Starting with MCU 2.45/DSP 1.92, speech compression has been disabled in AM mode. We hope to create a more effective compressor for AM in a future revision; the original was adding distortion without increasing “punch”. On the other hand, the available AM modulation level has been increased, and we’re better utilizing the mic AGC system in this mode. --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FOR SALE K3/100
Mint Condition Electronically and Cosmetically. Serial number 786. K3/100 KAT3-F Internal Antenna Tuner w/2nd Ant KFL3A- 5 pole 500hz Roofing Filter. $2520 plus shipping to lower 48 john-n4dsp ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / SSB
Rob May-2 wrote: I worked some PSK today at 20 watts and it seems to be fine. Just a couple of bars on the RF meter when I have the power dialed to 20 watts. I running the latest beta (2.45) but I didn't have any problem with 2.38. No compression, mic gain turned down so that the ALC just barely makes one bar. In reply to someone who responded off-list, I am aware that the power when a pure tone is sent will be about twice the power shown when the transmitter is modulated. However, what I am seeing is the power not being limited to what the power control has set. For example, set 5W, key down in CW mode, 5W is transmitted. Switch to data mode, send a pure tone, 12W is transmitted. Something is wrong with the way the power control is working. In reply to Rob, if I reduce the audio input level so that no ALC bars are shown, I can get the output power on a pure tone to follow what is set on the power control. However, this is not how we have been told the K3 should be set up, and it was not necessary to do this with previous versions of the firmware. Lyle stated in a post some months ago, that the ALC meter in data mode does not actually measure ALC, but signal level, and should be adjusted to a steady 4 or 5 bars to ensure adequate drive. I will try the most recent release of the firmware to see if it makes a difference. - 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--Power-too-high-in-PSK31---SSB-tp1143050p1143674.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] [K3] Serious bug in K3 firmware calibration logic?
I *think* I have found the solution to the problem of my K3 giving more power than is set on the power control. A few weeks ago, I recall someone on this reflector posting a paragraph from the manual on the lines that the K3 will perform a gain calibration if TUNE is performed with the power set to .1W, 5W or 50W. I can't find the original posting now, but I recall someone commenting that they hoped that was not the case, and that it really only did this when the CONFIG menu was in operation. Prior to the problem with the power levels occurring, I pressed the ATU button instead of the TUNE button when trying to tune my magnetic loop. I have TUN PWR set to 5W. The ATU tried to tune the grossly mismatched magnetic loop. After that, I pressed the TUNE button and tuned the loop for a match, and then pressed ATU TUNE again to tune the ATU back to what was presumably a 50 ohm load. It was at that point that I first noticed something didn't look quite right with the power levels. I set TUN PWR to 3W to see whether the K3 was obeying the power levels. It did on CW but was still giving more than double that power when a sine wave was injected into the audio. This morning I connected my power meter and did some more tests to confirm the problem I descrived last night. When I set TUN PWR to 5W and did a TUNE I noticed the power reading on the front panel display calibrating itself to 5W. After that I switched to DATA and injected a sine wave again and this time I got exactly the same power output - 5W. I might be interpreting this wrongly but it seems to me that the concern raised in the original post is justified, and that if a tuning power of .1W, 5W or 50W is used, the K3 will calibrate its power control whether you want it to or not. If this happens when a badly mismatched load is connected or perhaps when the ATU is in circuit and mis-tuned then the calibration will be completely wrong, with the results that I experienced. I think that the K3 power calibration should not occur unless you have specifically selected an option that requests it. By the way, if anyone wonders why I had the KAT3 active when using an external tuner as for the magnetic loop, the reason is simply that one of my antennas needs the KAT3 and one doesn't, and the K3 provides no way to link the KAT3 in/out with the selection of ANT 1/2. - 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--Power-too-high-in-PSK31---SSB-tp1143050p1143686.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] re: K3 - 60M channel storage and recall
Hi Wayne, Nope, you are not missing something. I was missing something. Was given input to follow the directions on page 39 of the manual. I had initially misunderstood the purpose of channel hopping. By adding the asterisk in front of the description of the sequential channels programmed for 60M my problem is solved. It now works fine for me on 60M. As I had suspected, cockpit error on my part. Tnx for the support. N2TK, Tony -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of wayne burdick Sent: Saturday, October 04, 2008 12:25 AM To: Elecraft Reflector Subject: [Elecraft] re: K3 - 60M channel storage and recall ...unlike most other transceivers the K3 currently lacks ability to switch stored channels (with instant receive) in the manner of a crystal controlled transceiver. Julian, Dave, Tony: I'm not sure I understand what you're asking for. The K3 lets you designate any number of variable-length blocks of channelized frequency memories, then use VFO A to instantly hop among them. You can also do channel-hop scanning within one of these blocks. For example, I have memories 61-65 set up as a channel block for the five U.S. 60-m frequencies. From any band, I can simply recall one of these memories, and the VFO becomes a channel control, just as if the rig were crystal-controlled. Similarly, I have a block set up for 2-m repeaters, etc. Am I missing something? If so, feel free to explain exactly how you'd like the K3 to function in this regard. The present method is simple and easy to use, but I'm open to other suggestions. This is all described in the Owner's Manual (page 39). See Channel Hopping. 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - 2.46 and rig control
This morning I decided to update the firmware to 2.46 on both K3 1062 and 1193. K3 #1062 worked fine. K3 # 1193 locked up and would not load. Both K3s are connected to the same computer with 1062 on Com1 and 1193 on Com3. (NOTE: This config has worked for every previous update) I tried to reload again and the load would not work until I moved 1193 to Com1. After the load all seemed fine. I then tried to load (reload) 2.46 on 1193 with Com 3. It appeared to load fine. The next step was to bring up my rig control sw (WriteLog and DX4win) and that is where the fun starts...again. The K3 that would not initially load the latest firmware was also not visible to either of my rig ctrl software programs. What I did: Swap serial ports - 1193 not available (K3 1062 works on both ports - NOT THE COMPUTER) Down grade Firmware to previous version that did work: 2.38 - 1193 not available (FIRMWARE REV HAS NO IMPACT) Swap in a totally new serial cable: 1193 not available Moved new cable to 1062 - 1062 works fine (NEW CABLE IS FINE) Saved configuration of K3 - 1193 to get ready for a reset Did a reset on K3 - 1193 (K3 1193 now available on rig control sw) Did a RESTORE of K3 configuration - (K3 1193 is NOT AVAILABLE) I really don't want to go through all the setup again if this can be avoided. ANY SUGGESTIONS ??? Please respond direct on via reflector as I only receive the journal version - not individual messages. HELP, Bruce - N1LN ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - 2.46 and rig control
Sounds like it may be USB-related issues, not enough power available for a USB-serial converter. You didn't say what type of serial devices you are using? Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Bruce Meier [EMAIL PROTECTED] Both K3s are connected to the same computer with 1062 on Com1 and 1193 on Com3. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / SSB
I am seeing is the power not being limited to what the power control has set. For example, set 5W, key down in CW mode, 5W is transmitted. Switch to data mode, send a pure tone, 12W is transmitted. Something is wrong with the way the power control is working. Have you set a value for CONFIG:TXG VCE because you voice peaks were not coming up to the CW level? Adding a dB or two there will cause PSK peak powers to run higher than the CW value. In reply to Rob, if I reduce the audio input level so that no ALC bars are shown, I can get the output power on a pure tone to follow what is set on the power control. Running no bars of ALC in PSK/AFSK causes the microphone gain to be increased to compensate for the insufficient drive. This will result in added distortion (noise and IMD). 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Julian, G4ILO Sent: Saturday, October 04, 2008 5:47 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] Power too high in PSK31 / SSB Rob May-2 wrote: I worked some PSK today at 20 watts and it seems to be fine. Just a couple of bars on the RF meter when I have the power dialed to 20 watts. I running the latest beta (2.45) but I didn't have any problem with 2.38. No compression, mic gain turned down so that the ALC just barely makes one bar. In reply to someone who responded off-list, I am aware that the power when a pure tone is sent will be about twice the power shown when the transmitter is modulated. However, what I am seeing is the power not being limited to what the power control has set. For example, set 5W, key down in CW mode, 5W is transmitted. Switch to data mode, send a pure tone, 12W is transmitted. Something is wrong with the way the power control is working. In reply to Rob, if I reduce the audio input level so that no ALC bars are shown, I can get the output power on a pure tone to follow what is set on the power control. However, this is not how we have been told the K3 should be set up, and it was not necessary to do this with previous versions of the firmware. Lyle stated in a post some months ago, that the ALC meter in data mode does not actually measure ALC, but signal level, and should be adjusted to a steady 4 or 5 bars to ensure adequate drive. I will try the most recent release of the firmware to see if it makes a difference. - 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--Power-too-high-in-PSK31---SSB-tp1143 050p1143674.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SPS into a EC-2 housing?
I'd like to put a ~20A SPS into a EC-2 housing. Has anybody found a PS that fits into this housing? 73! de Werner OE9FWV -- Driving People Insane: 6. Insist that your e-mail address be xena-goddess- [EMAIL PROTECTED] Email powered by Pegasus Mail free at http://www.pmail.com Homepage: http://www.qsl.net/oe9fwv/ Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 Elecraft K2 #5203 K3 #656 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / SSB
Joe Subich, W4TV-3 wrote: Have you set a value for CONFIG:TXG VCE because you voice peaks were not coming up to the CW level? Adding a dB or two there will cause PSK peak powers to run higher than the CW value. Good call. Than you. Yes, there was 2.0dB set in there. I'm not sure how it got there, because I don't have any peak reading meter so I would not have been able to tell if the voice peaks were lacking anyway. In fact, the power out on a pure tone is about 10% higher than on key down, even with TXG VCE re-set to 0.0db. What I don't understand is how I appeared to fix the problem by running the TX gain calibration on each band into a dummy load again. I would have assumed that if you set a particular power level, you would get no more than that amount of peak power out, regardless of any other setting. No wonder folks driving linears are complaining that they can't accurately set the output so they can't overdrive them. It seems to me that how much power the K3 puts out depends on what mood it's in. :) - 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--Power-too-high-in-PSK31---SSB-tp1143050p1179147.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / SSB
Joe, W4TV, wrote: Running no bars of ALC in PSK/AFSK causes the microphone gain to be increased to compensate for the insufficient drive. This will result in added distortion (noise and IMD). Richard, VE3JAY, wrote: FWIW, I leave my K3's power control set at 100 watts, but I adjust the mic gain control to a setting which ensures I get zero ALC reading (even one bar causes a noticeable increase in IMD as measured on a PSKmeter). So, no bars equals more noise and IMD or even one bar causes more IMD? These two statements seem to contradict each other. I'm thinking that the ALC will only limit mic gain, it won't bring it up if it's low, other wise you wouldn't have any dynamic range on your voice, the ALC would tend to make everything the same level. I'll just keep doing the way I've been doing it. I get good reports and the power output that I expect. Rob NV5E _ See how Windows connects the people, information, and fun that are part of your life. http://clk.atdmt.com/MRT/go/msnnkwxp1020093175mrt/direct/01/___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] [K3] Chaining CW memories
Oh dear, it's obviously my weekend to find things wrong. :( In the manual on page 30 it states that tapping M1 to M4 while a message is being sent chains another message on to the end of the one being played. However, it does this without allowing a space gap between the messages, so it would send DE G4ILO5NN (for example) instead of DE G4ILO 5NN. Also, at the moment I press the second M button, quite often a dot or dash or two gets dropped from the message being sent (playback speed only 24wpm). - 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--Chaining-CW-memories-tp1190274p1190274.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / SSB
So, no bars equals more noise and IMD or even one bar causes more IMD? My information comes directly from Lyle - I don't remember if it was on the reflector or in a direct e-mail during testing of some beta ALC code. FWIW, I leave my K3's power control set at 100 watts, but I adjust the mic gain control to a setting which ensures I get zero ALC reading (even one bar causes a noticeable increase in IMD as measured on a PSKmeter). Setting the power out to 100 watts in PSK will guarantee that the final is being driven into compression on peaks if you see ALC (enough drive to reach 100 watts). I measure no difference in IMD with no ALC (just below the point at which the first bar shows) vs. five solid bars if the power level is kept below about 60 watts. Put another way, if the peak (CW equivalent) power level is kept below about 60 watts to prevent compression (and the onset of IMD generation) in the K3's finals, there is no difference with ALC just below the level of the first bar and five solid bars. If the mic/line gain is open just enough to get power output the PSK has more noise, has about 1 dB more IMD, and power output is less stable than with five bars of ALC. What Rich's procedure does accomplish is assure that the power output does not exceed the 50/60 watt level. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob May Sent: Saturday, October 04, 2008 11:03 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] Power too high in PSK31 / SSB Joe, W4TV, wrote: Running no bars of ALC in PSK/AFSK causes the microphone gain to be increased to compensate for the insufficient drive. This will result in added distortion (noise and IMD). Richard, VE3JAY, wrote: FWIW, I leave my K3's power control set at 100 watts, but I adjust the mic gain control to a setting which ensures I get zero ALC reading (even one bar causes a noticeable increase in IMD as measured on a PSKmeter). So, no bars equals more noise and IMD or even one bar causes more IMD? These two statements seem to contradict each other. I'm thinking that the ALC will only limit mic gain, it won't bring it up if it's low, other wise you wouldn't have any dynamic range on your voice, the ALC would tend to make everything the same level. I'll just keep doing the way I've been doing it. I get good reports and the power output that I expect. Rob NV5E _ See how Windows connects the people, information, and fun that are part of your life. http://clk.atdmt.com/MRT/go/msnnkwxp1020093175mrt/direct/01/__ _ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / SSB
Ok, Joe, that's the way I understand it and is the way I'm doing it. I adjust mic gain with Digipan in tune mode until it's right at the level where the first bar starts to flash.Compression is set at 0. Output power is set with the Pwr knob. I generally run between 5 and 20 watts on PSK. I get good reports and make plenty of contacts, so I must be doing something right. Rob NV5E From: [EMAIL PROTECTED] To: [EMAIL PROTECTED]; elecraft@mailman.qth.net Subject: RE: [Elecraft] Power too high in PSK31 / SSB Date: Sat, 4 Oct 2008 12:18:46 -0400 So, no bars equals more noise and IMD or even one bar causes more IMD? My information comes directly from Lyle - I don't remember if it was on the reflector or in a direct e-mail during testing of some beta ALC code. FWIW, I leave my K3's power control set at 100 watts, but I adjust the mic gain control to a setting which ensures I get zero ALC reading (even one bar causes a noticeable increase in IMD as measured on a PSKmeter). Setting the power out to 100 watts in PSK will guarantee that the final is being driven into compression on peaks if you see ALC (enough drive to reach 100 watts). I measure no difference in IMD with no ALC (just below the point at which the first bar shows) vs. five solid bars if the power level is kept below about 60 watts. Put another way, if the peak (CW equivalent) power level is kept below about 60 watts to prevent compression (and the onset of IMD generation) in the K3's finals, there is no difference with ALC just below the level of the first bar and five solid bars. If the mic/line gain is open just enough to get power output the PSK has more noise, has about 1 dB more IMD, and power output is less stable than with five bars of ALC. What Rich's procedure does accomplish is assure that the power output does not exceed the 50/60 watt level. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob May Sent: Saturday, October 04, 2008 11:03 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] Power too high in PSK31 / SSB Joe, W4TV, wrote: Running no bars of ALC in PSK/AFSK causes the microphone gain to be increased to compensate for the insufficient drive. This will result in added distortion (noise and IMD). Richard, VE3JAY, wrote: FWIW, I leave my K3's power control set at 100 watts, but I adjust the mic gain control to a setting which ensures I get zero ALC reading (even one bar causes a noticeable increase in IMD as measured on a PSKmeter). So, no bars equals more noise and IMD or even one bar causes more IMD? These two statements seem to contradict each other. I'm thinking that the ALC will only limit mic gain, it won't bring it up if it's low, other wise you wouldn't have any dynamic range on your voice, the ALC would tend to make everything the same level. I'll just keep doing the way I've been doing it. I get good reports and the power output that I expect. Rob NV5E _ See how Windows connects the people, information, and fun that are part of your life. http://clk.atdmt.com/MRT/go/msnnkwxp1020093175mrt/direct/01/__ _ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _ Want to do more with Windows Live? Learn “10 hidden secrets” from Jamie. http://windowslive.com/connect/post/jamiethomson.spaces.live.com-Blog-cns!550F681DAD532637!5295.entry?ocid=TXT_TAGLM_WL_domore_092008___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] [K3] Power too high in PSK31 / SSB
Julian, G4ILO [EMAIL PROTECTED] writes: I have just noticed that my K3 appears to be giving vastly more peak power out than the value selected by the power control. I assume that this issue has occurred since my loading the version 2.38 production firmware after returning from holiday, because I did not have this problem before then. The constant carrier power level when TUNE is pressed appears to be correct. However in PSK31 mode I am getting almost full scale on the internal meter when 40W is dialled up. When the PSK software sends a tune signal (pure tone) an external power meter shows about twice the amount of power that has been specified. On SSB at 100W the internal meter seems to be at full scale most of the time as well. Has anyone else experienced this, and what is the solution? I have noticed that with my setup the power level varies greatly depending on where in the passband I'm transmitting. In other words if I setup HRD to work a QSO on a lower frequency (say between 800Hz and 1000Hz) I get a much higher indicated power output than if I work at the center (1350Hz) or higher. I just figured this was due to the frequency response of my soundcard (SignaLink USB) and or the accuracy of the power output meter at different audio frequencies. I'd appreciate hearing others' thoughts on this too! Steve AD7OG K3 #1544 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[K3] [Elecraft] Power meter
Can anyone suggest a good power meter to calibrate the K3 Joe W1JGS - Joe W1JGS -- View this message in context: http://n2.nabble.com/Power-meter-tp1211374p1211374.html Sent from the [K3] mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Contest software for PDA etc.
Also try G4FON's QSO Diary - a simpler loggin program, here: http://www.g4fon.net/QSO%20Diary.htm -- The nice thing about standards is that there are so many of them to choose from. -Andrew Tannenbaum, computer science professor (1944- ) On 4 Oct 2008, at 18:42, DL8MBS wrote: Hello, I want to do a bit more portable qrp-contesting with my K2. When doing it up to 24 hours or more the power consumption of laptops to run the logging software will be an issue - I don´t like to carry 70 Ah for the logging hardware when the RF-hardware (K2) is done with less than 20 Ah. So I´m looking for contest software that can run on any of the devices like Palm, PDA, Pocket PC etc. It should be able to send CW (with serial numbers when needed), mark dupes per band and log the contacts (and allows a paddle still to be used for fills). No rig control needed neither gadgets like cluster, etc. Until now I found GOLog and K2logger by K0PC to look at them closer. Has anyone experiences with them or knows other software of that kind? Many thanks in advance for any information and best 73, Chris (www.dl8mbs.de) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Firmware v. 2.46
I downloaded v. 2.46 earlier today and noticed DSP1 was 1.93 and DSP2 had not updated. I then reloaded and both DSP1 and DSP2 are now 1.92. FPF is .02. I just wonder what was going on with the DSP downloads. Roy Morris W4WFB___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] re: K3 - 60M channel storage and recall
Wayne I hope I am not asking too much, but the K3 is nothing like as easy to use in channelised mode as many other transceivers are. A basic TS570 has a V/M switch, you are either in VFO mode or Memory mode. In memory mode rotating the multi-function knob switches through memories, receiving on each as you switch, even changing bands. It doesn't rely on copying the contents to the VFO, prefixing them with a * or any other work arounds. The later TS480 works in the same manner. Short of bringing out a MK2 version of the K3's front panel, I guess you have painted yourself into a corner as there isn't a VFO/Mem switch on the K3. 73 Dave, G4AON === Julian, Dave, Tony: I'm not sure I understand what you're asking for. The K3 lets you designate any number of variable-length blocks of channelized frequency memories, then use VFO A to instantly hop among them. You can also do channel-hop scanning within one of these blocks. For example, I have memories 61-65 set up as a channel block for the five U.S. 60-m frequencies. From any band, I can simply recall one of these memories, and the VFO becomes a channel control, just as if the rig were crystal-controlled. Similarly, I have a block set up for 2-m repeaters, etc. Am I missing something? SNIP Wayne N6KR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Reminder - UK Elecraft net Sundays 0900 local, 3630 KHz
I am hopeful that we will be clear of contests this Sunday and that we have a report on the recent Jura week of activity from Ian or Paul. See you in the morning! 73 Dave, G4AON K3/100 #80 (firmware 2.38), Acom 1000 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Contest software for PDA etc.
Hello, I want to do a bit more portable qrp-contesting with my K2. When doing it up to 24 hours or more the power consumption of laptops to run the logging software will be an issue - I don´t like to carry 70 Ah for the logging hardware when the RF-hardware (K2) is done with less than 20 Ah. So I´m looking for contest software that can run on any of the devices like Palm, PDA, Pocket PC etc. It should be able to send CW (with serial numbers when needed), mark dupes per band and log the contacts (and allows a paddle still to be used for fills). No rig control needed neither gadgets like cluster, etc. Until now I found GOLog and K2logger by K0PC to look at them closer. Has anyone experiences with them or knows other software of that kind? Many thanks in advance for any information and best 73, Chris (www.dl8mbs.de) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [K3] [Elecraft] Power meter
Joe the power meter in the K3 comes calibrated from the factory. If you feel the need to calibrate it then you will need a fairly high specification meter. The factory calibrated LP-100A is pretty useful... I have my LP-100 in series all the time these days, it shows up the poor ALC control of the K3 on SSB where the peak power is quite variable... 73 Dave, G4AON K3/100 #80 (firmware 2.38) Can anyone suggest a good power meter to calibrate the K3 Joe W1JGS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Contest software for PDA etc.
What's wrong with the ASUS EEE PC and similar? They run off 12v and require minimal current. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: DL8MBS [EMAIL PROTECTED] I want to do a bit more portable qrp-contesting with my K2. When doing it up to 24 hours or more the power consumption of laptops to run the logging software will be an issue - I don´t like to carry 70 Ah for the logging hardware when the RF-hardware (K2) is done with less than 20 Ah. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [K3] [Elecraft] Power meter
Joe, To calibrate the K3 power as indicated in the manual, only a good dummy load is required, not an external wattmeter. If you want to do something more, then you may want to take a look at the LP-100 meter. Larry offers a service to calibrate an assembled kit for free (other than cost of shipping), or he has assembled and calibrated wattmeters for sale. Take a look at http://www.telepostinc.com/. 73, Don W3FPR Joe G wrote: Can anyone suggest a good power meter to calibrate the K3 Joe W1JGS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [K3] [Elecraft] Power meter
Hi Joe, The last I heard, Elecraft uses the Telepost LP-100 Vector Wattmeter to calibrate factory assembled K3's. Reasonably priced, very flexible meter available in kit form or factory assembled calibrated. http://www.telepostinc.com/lp100.html e-Ham Reviews: http://www.eham.net/reviews/detail/5981 73, Frank - W6NEK - Original Message - From: Joe G [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, October 04, 2008 11:23 AM Subject: [K3] [Elecraft] Power meter Can anyone suggest a good power meter to calibrate the K3 Joe W1JGS - Joe W1JGS -- View this message in context: http://n2.nabble.com/Power-meter-tp1211374p1211374.html Sent from the [K3] mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: re: [Elecraft] K3 - 60M channel storage and recall
Wayne, here's perhaps an idea: the K3 should load the memory as soon as you hit M-V button, then as you tune VFO-A it will load each memory number as you spin the VFO ... This allows to receive on that memory as you spin it - Wim wayne burdick wrote: ...unlike most other transceivers the K3 currently lacks ability to switch stored channels (with instant receive) in the manner of a crystal controlled transceiver. Julian, Dave, Tony: I'm not sure I understand what you're asking for. The K3 lets you designate any number of variable-length blocks of channelized frequency memories, then use VFO A to instantly hop among them. You can also do channel-hop scanning within one of these blocks. For example, I have memories 61-65 set up as a channel block for the five U.S. 60-m frequencies. From any band, I can simply recall one of these memories, and the VFO becomes a channel control, just as if the rig were crystal-controlled. Similarly, I have a block set up for 2-m repeaters, etc. Am I missing something? If so, feel free to explain exactly how you'd like the K3 to function in this regard. The present method is simple and easy to use, but I'm open to other suggestions. This is all described in the Owner's Manual (page 39). See Channel Hopping. 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- View this message in context: http://n2.nabble.com/K3---60M-channel-storage-and-recall-tp1142319p1213071.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[K3] RE: [Elecraft] Power meter
All Thanks for the input Joe W1JGS _ From: W6NEK [mailto:[EMAIL PROTECTED] Sent: Saturday, October 04, 2008 2:56 PM To: Joe G Subject: Re: Power meter Hi Joe, The last I heard, Elecraft uses the Telepost LP-100 Vector Wattmeter to calibrate factory assembled K3's. Reasonably priced, very flexible meter available in kit form or factory assembled calibrated. http://www.telepostinc.com/lp100.html e-Ham Reviews: http://www.eham.net/reviews/detail/5981 73, Frank - W6NEK - Original Message - From: Joe G [EMAIL PROTECTED] http://n2.nabble.com/user/SendEmail.jtp?type=nodenode=1213054i=0 To: [EMAIL PROTECTED] http://n2.nabble.com/user/SendEmail.jtp?type=nodenode=1213054i=1 Sent: Saturday, October 04, 2008 11:23 AM Subject: [K3] [Elecraft] Power meter Can anyone suggest a good power meter to calibrate the K3 Joe W1JGS - Joe W1JGS -- View this message in context: http://n2.nabble.com/Power-meter-tp1211374p1211374.html Sent from the [K3] mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: [EMAIL PROTECTED] http://n2.nabble.com/user/SendEmail.jtp?type=nodenode=1213054i=2 You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: [EMAIL PROTECTED] http://n2.nabble.com/user/SendEmail.jtp?type=nodenode=1213054i=3 You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _ View message @ http://n2.nabble.com/Power-meter-tp1211374p1213054.html To start a new topic under [K3], email [EMAIL PROTECTED] To unsubscribe from [K3], click (link removed) vbi5uZXR8MzY1NzkyfDE1NDAyNzg3OTQ= here. - Joe W1JGS -- View this message in context: http://n2.nabble.com/Power-meter-tp1211374p1213204.html Sent from the [K3] mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / S
Well, I'll be doggoned! Thanks, Joe - I seem to recall reading that somewhere, but I hadn't really taken it in, and I was still using the procedure that worked with my previous radio. If I set the K3's requested power to 100 watts, then with 0 bars ALC I get IMD well below -30 dB, but with even 1 bar it rises to -26 dB, and gets worse with more bars. At the same time, the average transmitted power rises above 50 watts - clearly the peaks are getting into compression. However, if I set the requested power to 50 watts, I can push the ALC right up to 4 or 5 bars while the average transmitted power stays at 50 watts on a two-tone signal and the IMD stays below -30 dB. That's a safer and easier way to operate. So now to remember: in modes like CW and RTTY set the requested power to 100w, but in PSK and other similar modes cut it back to 50w. I can probably figure out a way for my digital-mode software to remember this for me and do it by software control. Actually, I think I'll set it to some other number, such as 40w, to lessen the risk of inadvertently recalibrating TX gain by hitting the TUNE button. Thanks again, Joe. 73, Rich VE3KI / VE3IAY K3 #1595 So, no bars equals more noise and IMD or even one bar causes more IMD? My information comes directly from Lyle - I don't remember if it was on the reflector or in a direct e-mail during testing of some beta ALC code. FWIW, I leave my K3's power control set at 100 watts, but I adjust the mic gain control to a setting which ensures I get zero ALC reading (even one bar causes a noticeable increase in IMD as measured on a PSKmeter). Setting the power out to 100 watts in PSK will guarantee that the final is being driven into compression on peaks if you see ALC (enough drive to reach 100 watts). I measure no difference in IMD with no ALC (just below the point at which the first bar shows) vs. five solid bars if the power level is kept below about 60 watts. Put another way, if the peak (CW equivalent) power level is kept below about 60 watts to prevent compression (and the onset of IMD generation) in the K3's finals, there is no difference with ALC just below the level of the first bar and five solid bars. If the mic/line gain is open just enough to get power output the PSK has more noise, has about 1 dB more IMD, and power output is less stable than with five bars of ALC. What Rich's procedure does accomplish is assure that the power output does not exceed the 50/60 watt level. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] re: K3 - 60M channel storage and recall
Dave, This could easily be handled with a programmable menu function, of which you can have as many as 10 on the K3. That's why we put them there: to customize the K3 for each user's needs. When I get a chance to look into it, I'll get back to you for more input. 73, Wayne N6KR Dave G4AON wrote: Short of bringing out a MK2 version of the K3's front panel, I guess you have painted yourself into a corner as there isn't a VFO/Mem switch on the K3. --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Fw: [Elecraft] FOR SALE K3/100-SALE PENDING
Sale Pending on the K3/100. Thanks john-n4dsp Mint Condition Electronically and Cosmetically. Serial number 786. K3/100 KAT3-F Internal Antenna Tuner w/2nd Ant KFL3A- 5 pole 500hz Roofing Filter. $2520 plus shipping to lower 48 john-n4dsp ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
Richard and all, If you look back to Lyle Johnson's reflector posting of April 6, you will find the following: (plus other good information about setting up data modes. In this case, the ALC meter display is acting as a VU Meter and is being used to help you set the Tx audio path gain correctly. It is not showing you how much you are over-driving the PA. This is why you can set it up in Tx test mode, when you are not transmitting any RF at all. Additional information can be found in Rev D of the K3 user's manual on page 32. 73, Don W3FPR Richard Ferch wrote: Well, I'll be doggoned! Thanks, Joe - I seem to recall reading that somewhere, but I hadn't really taken it in, and I was still using the procedure that worked with my previous radio. If I set the K3's requested power to 100 watts, then with 0 bars ALC I get IMD well below -30 dB, but with even 1 bar it rises to -26 dB, and gets worse with more bars. At the same time, the average transmitted power rises above 50 watts - clearly the peaks are getting into compression. However, if I set the requested power to 50 watts, I can push the ALC right up to 4 or 5 bars while the average transmitted power stays at 50 watts on a two-tone signal and the IMD stays below -30 dB. That's a safer and easier way to operate. So now to remember: in modes like CW and RTTY set the requested power to 100w, but in PSK and other similar modes cut it back to 50w. I can probably figure out a way for my digital-mode software to remember this for me and do it by software control. Actually, I think I'll set it to some other number, such as 40w, to lessen the risk of inadvertently recalibrating TX gain by hitting the TUNE button. Thanks again, Joe. 73, Rich VE3KI / VE3IAY K3 #1595 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SPS into a EC-2 housing?
It appears that the MFJ-4125 will fit in the EC-2 housing with room to spare. I have a MFJ-4125 and it is a very RF quiet. Phil - AD5X ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
So when I'm in DATA mode how do I ensure that I am not using any ALC? A good data mode operator monitors ALC all the time as using ALC can often result in a wide signal. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Don Wilhelm [EMAIL PROTECTED] In this case, the ALC meter display is acting as a VU Meter and is being used to help you set the Tx audio path gain correctly. It is not showing you how much you are over-driving the PA. This is why you can set it up in Tx test mode, when you are not transmitting any RF at all. Additional information can be found in Rev D of the K3 user's manual on page 32. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 F/W2.46
The latest version has cured the 40m problems I experienced with the previous beta version. Also the TX inhibit now works fine on QSK with my amplifier and the audio distortion in the monitor on SSB appears to have been cured. I haven't tried the noise gate yet. I have noticed one minor quirk has been introduced. The TX indicator for VFO A and B now flashes all the time instead of just in Test mode ! 73 Barry Simpson VK2BJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Open Mic Inside The Radio?
hi, -.-. --.-N3TU -.-. --.- schrieb am 3 Oct 2008 um 18:46: Anyone have this problem with an open mic inside the radio? When I am on 52.795 mhz, I get a signal of s-3 and when I turn up the volume, it squeals. I can actually speak through the bigger grille opening on top of the radio and hear myself. I can't hear any weak signals on that frequency because it is getting covered up. Any way to resolve this issue? -- View this message in context: it is not an open microphone but a birdie that is microphonic. all K3's I have seen have some birdies, some are very loud like yours and some are so low that they disappear in the noise when an antenna is connected. Open the top cover and touch or come close to the board with oscillator and you will know where the microphone is seated ;-) 73! de Werner OE9FWV -- Handle so, dass die Maxime Deines Willens jederzeit zugleich als Prinzip einer allgemeinen Gesetzgebung gelten könne. Imanuel Kant Email powered by Pegasus Mail free at http://www.pmail.com Homepage: http://www.qsl.net/oe9fwv/ Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 Elecraft K2 #5203 K3 #656 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / SSB
Steve Ward wrote: I have noticed that with my setup the power level varies greatly depending on where in the passband I'm transmitting. In other words if I setup HRD to work a QSO on a lower frequency (say between 800Hz and 1000Hz) I get a much higher indicated power output than if I work at the center (1350Hz) or higher. I just figured this was due to the frequency response of my soundcard (SignaLink USB) and or the accuracy of the power output meter at different audio frequencies. I'd appreciate hearing others' thoughts on this too! You might expect that if you did not have enough drive level due to trying to use the audio level to control the power output. If you set it up as decsribed with 4 or 5 bars of ALC then the power control should give you a constant output until you get to the really steep part of the passband. I use the quotes deliberately - as I understand it the meter is not actually measuring ALC when in DATA A mode. Certainly I do not observe any adverse reading on my IMD meter when set up this way, with the power control set for 40W output. Having said that, I prefer to operate at the sweet spot in the center of the passband. The wonderful program Fldigi has a handy QSY button that shifts whatever signal you are receiving to that point, so you can then dial in a narrow filter and get the best possible copy. - 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--Power-too-high-in-PSK31---SSB-tp1143050p1213411.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
Simon (HB9DRV) wrote: So when I'm in DATA mode how do I ensure that I am not using any ALC? A good data mode operator monitors ALC all the time as using ALC can often result in a wide signal. I think the K3 firmware is supposed to be clever enough not to use ALC if you set it up as directed. So you don't need to worry about it. To be honest there are so many other ways to screw up a data mode signal - overdriving the mic input, RF feedback etc. - that anyone who thinks their signal is clean just because no ALC is showing is relying on luck to a certain extent. Everyone should use an IMD meter or something like it. - 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/RE%3A-Power-too-high-in-PSK31---S-tp1213231p1213434.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / S
Richard Ferch wrote: Well, I'll be doggoned! Thanks, Joe - I seem to recall reading that somewhere, but I hadn't really taken it in, and I was still using the procedure that worked with my previous radio. If I set the K3's requested power to 100 watts, then with 0 bars ALC I get IMD well below -30 dB, but with even 1 bar it rises to -26 dB, and gets worse with more bars. At the same time, the average transmitted power rises above 50 watts - clearly the peaks are getting into compression. However, if I set the requested power to 50 watts, I can push the ALC right up to 4 or 5 bars while the average transmitted power stays at 50 watts on a two-tone signal and the IMD stays below -30 dB. That's a safer and easier way to operate. So now to remember: in modes like CW and RTTY set the requested power to 100w, but in PSK and other similar modes cut it back to 50w. I can probably figure out a way for my digital-mode software to remember this for me and do it by software control. Actually, I think I'll set it to some other number, such as 40w, to lessen the risk of inadvertently recalibrating TX gain by hitting the TUNE button. Thanks again, Joe. I operated for years with a QRP K2 and used 5W on PSK31 and there were surprisingly few contacts that I couldn't make it. Now I have the K3/100 but it simply never occurred to me to wind the power up to 100W. I don't see the point in getting the PA so hot so quickly. I never set it to more than 40W, and at 25W it runs noticeably cooler and doesn't seem to make much difference to the signal report. - 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/RE%3A-Power-too-high-in-PSK31---S-tp1213231p1213441.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
What would you do with modes other than PSK? Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Julian, G4ILO [EMAIL PROTECTED] I think the K3 firmware is supposed to be clever enough not to use ALC if you set it up as directed. So you don't need to worry about it. To be honest there are so many other ways to screw up a data mode signal - overdriving the mic input, RF feedback etc. - that anyone who thinks their signal is clean just because no ALC is showing is relying on luck to a certain extent. Everyone should use an IMD meter or something like it. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 F/W 2.46
Further to my last posting regarding the TX icon flashing all the time, I have found that it only does that when I have the linear connected and ready to transmit. It does not flash when the linear is switched to standby. It might have always been this way and I have just never noticed before. 73 Barry Simpson VK2BJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
Now I don't know what to believe. In Lyle's April 6 post, he says: We recommend setting the Mic (or LINE IN) Gain so you get 5 bars of ALC, with possibly the 6th bar occasionally flickering... Yet, on the K3 Operating Tips page of the Elecraft web site, in the section about Setting up your K3 for PSK it says: Use the MIC control to set the drive level so that your output is equal or just below what you dialed in ... You should not see any ALC bars on the K3 display (when set to CMP/ALC). Rev D1 of the operating manual seems to agree with Lyle in that it says: You can use the same procedure outlined for voice modes (pg. 28) except that speech compression should not be used. [Pg. 28]: adjust MIC for a peak ALC meter indication of about 5-7 bars. If the operating tip on the web site is wrong, it ought to be corrected or removed. 73 -- Joe KB8AP On Oct 4, 2008, at 1:54 PM, Don Wilhelm wrote: Richard and all, If you look back to Lyle Johnson's reflector posting of April 6, you will find the following: (plus other good information about setting up data modes. In this case, the ALC meter display is acting as a VU Meter and is being used to help you set the Tx audio path gain correctly. It is not showing you how much you are over-driving the PA. This is why you can set it up in Tx test mode, when you are not transmitting any RF at all. Additional information can be found in Rev D of the K3 user's manual on page 32. 73, Don W3FPR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] How Do I Get My Elecraft On The Computer?
Ok, I got this Elecraft K3 a week ago. I want to see the radio on my monitor along with a scope. Anyone have their Elecraft on the screen? All I have is the USB cable that updates my K3 from the computer. Is this the cable I need and what kind of software? I am from old school so please step it down a notch so I can understand. I also want to use different digital modes on MARS like Olivia and Easy Pal and don't have a clue. Some say I need a external box like Signal Link so I don't burn up the sound card with too much audio. Anyone using digital modes on HF and also having the radio up on the screen. This is Signal Link's information. Do I need another cable than the USB one that is hooked to the radio for updates? Thanks. * FCC Class B Certified * Built-in Low-noise Sound Card * Simple Installation and Setup * Complete Radio Isolation * USB Port Powered * Works with ALL Radios * Uses Mic, Data, or Accy Port * Supports All Sound Card Digital and Voice Modes -- View this message in context: http://n2.nabble.com/How-Do-I-Get-My-Elecraft-On-The-Computer--tp1236198p1236198.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
Simon, My guess is that you are driving too hard if the ALC bars indicate more than 5 or 6 bars on a regular basis. Since Lyle is the designer of those parts, I would tend to believe what he is saying. 73, Don W3FPR Simon (HB9DRV) wrote: So when I'm in DATA mode how do I ensure that I am not using any ALC? A good data mode operator monitors ALC all the time as using ALC can often result in a wide signal. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Don Wilhelm [EMAIL PROTECTED] In this case, the ALC meter display is acting as a VU Meter and is being used to help you set the Tx audio path gain correctly. It is not showing you how much you are over-driving the PA. This is why you can set it up in Tx test mode, when you are not transmitting any RF at all. Additional information can be found in Rev D of the K3 user's manual on page 32. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.7.5/1706 - Release Date: 10/3/2008 6:17 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
Joe, There have been a few changes over the course of this part of the firmware development. I do not know the date of that particular PSK Operating Tip on the Elecraft website. I would tend to believe the latest information from Lyle since he is designing that part, but Wayne's answers should be definitive too. If he is reading the reflector this weekend, we may get a good answer from him. In general, the Rev D manual contains up-to-date information. 73, Don W3FPR Joe Planisky wrote: Now I don't know what to believe. In Lyle's April 6 post, he says: We recommend setting the Mic (or LINE IN) Gain so you get 5 bars of ALC, with possibly the 6th bar occasionally flickering... Yet, on the K3 Operating Tips page of the Elecraft web site, in the section about Setting up your K3 for PSK it says: Use the MIC control to set the drive level so that your output is equal or just below what you dialed in ... You should not see any ALC bars on the K3 display (when set to CMP/ALC). Rev D1 of the operating manual seems to agree with Lyle in that it says: You can use the same procedure outlined for voice modes (pg. 28) except that speech compression should not be used. [Pg. 28]: adjust MIC for a peak ALC meter indication of about 5-7 bars. If the operating tip on the web site is wrong, it ought to be corrected or removed. 73 -- Joe KB8AP On Oct 4, 2008, at 1:54 PM, Don Wilhelm wrote: Richard and all, If you look back to Lyle Johnson's reflector posting of April 6, you will find the following: (plus other good information about setting up data modes. In this case, the ALC meter display is acting as a VU Meter and is being used to help you set the Tx audio path gain correctly. It is not showing you how much you are over-driving the PA. This is why you can set it up in Tx test mode, when you are not transmitting any RF at all. Additional information can be found in Rev D of the K3 user's manual on page 32. 73, Don W3FPR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.7.5/1706 - Release Date: 10/3/2008 6:17 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
Joe, I have to change the operating tips page. It was done prior to a major ALC change. I was waiting for another update as Lyle is changing the ALC meter feedback. It will change to 1-bar as the desired setting. For now, you can adjust it for 4 bars. If you cannot get 4 bars 3 is still OK. 73 Greg - Original Message - From: Joe Planisky [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Saturday, October 04, 2008 4:15 PM Subject: Re: [Elecraft] Power too high in PSK31 / S Now I don't know what to believe. In Lyle's April 6 post, he says: We recommend setting the Mic (or LINE IN) Gain so you get 5 bars of ALC, with possibly the 6th bar occasionally flickering... Yet, on the K3 Operating Tips page of the Elecraft web site, in the section about Setting up your K3 for PSK it says: Use the MIC control to set the drive level so that your output is equal or just below what you dialed in ... You should not see any ALC bars on the K3 display (when set to CMP/ALC). Rev D1 of the operating manual seems to agree with Lyle in that it says: You can use the same procedure outlined for voice modes (pg. 28) except that speech compression should not be used. [Pg. 28]: adjust MIC for a peak ALC meter indication of about 5-7 bars. If the operating tip on the web site is wrong, it ought to be corrected or removed. 73 -- Joe KB8AP On Oct 4, 2008, at 1:54 PM, Don Wilhelm wrote: Richard and all, If you look back to Lyle Johnson's reflector posting of April 6, you will find the following: (plus other good information about setting up data modes. In this case, the ALC meter display is acting as a VU Meter and is being used to help you set the Tx audio path gain correctly. It is not showing you how much you are over-driving the PA. This is why you can set it up in Tx test mode, when you are not transmitting any RF at all. Additional information can be found in Rev D of the K3 user's manual on page 32. 73, Don W3FPR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.7.5/1708 - Release Date: 10/4/2008 11:35 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2: Power calibration?
Today I was trying to check power output on a newly constructed SW-40+ (my second one) and needed to recalibrate my WM-2 wattmeter. After doing that, I decided to check it against my K2 (#337). Not even close! The WM-2 shows 2.7 watts when the K2 shows 5. It shows about 7 w. when the K2 is set for 10 w. I double checked the calibration on the WM-2 and put in a new 9v. battery and got the same results. The WM-2 is supposed to read within 5% according to OHR. I seem to remember lots of discussion about power calibration on the K2 long ago and that there's a 1% resistor in there somewhere that's involved. I wouldn't worry about it if I was within 10% or so, but I'm not even close. I don't have another independent way of checking this. Should I believe the WM-2 or the K2 or neither??? 73, Randy, KS4L ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] re: K3 - 60M channel storage and recall
You may not like it, but I like this way much better than the Kendwood method. You cannot please everyone. Bob Serwy - N9RS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave G4AON Sent: Saturday, October 04, 2008 1:10 PM To: elecraft@mailman.qth.net Subject: [Elecraft] re: K3 - 60M channel storage and recall Wayne I hope I am not asking too much, but the K3 is nothing like as easy to use in channelised mode as many other transceivers are. A basic TS570 has a V/M switch, you are either in VFO mode or Memory mode. In memory mode rotating the multi-function knob switches through memories, receiving on each as you switch, even changing bands. It doesn't rely on copying the contents to the VFO, prefixing them with a * or any other work arounds. The later TS480 works in the same manner. Short of bringing out a MK2 version of the K3's front panel, I guess you have painted yourself into a corner as there isn't a VFO/Mem switch on the K3. 73 Dave, G4AON === Julian, Dave, Tony: I'm not sure I understand what you're asking for. The K3 lets you designate any number of variable-length blocks of channelized frequency memories, then use VFO A to instantly hop among them. You can also do channel-hop scanning within one of these blocks. For example, I have memories 61-65 set up as a channel block for the five U.S. 60-m frequencies. From any band, I can simply recall one of these memories, and the VFO becomes a channel control, just as if the rig were crystal-controlled. Similarly, I have a block set up for 2-m repeaters, etc. Am I missing something? SNIP Wayne N6KR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Power too high in PSK31 / S
Greg, It will change to 1-bar as the desired setting. For now, you can adjust it for 4 bars. If you cannot get 4 bars 3 is still OK. If Lyle specifically said, We recommend setting the Mic (or LINE IN) Gain so you get 5 bars of ALC, with possibly the 6th bar occasionally flickering... why would you recommend 1 bar? With the current firmware, power output and ALC is very stable at five bars. If the Line In level is significantly below the five bar level, I see significant hunting or motorboating of the ALC and some variability (above and beyond the content related variation inherent in PSK31) of the output power. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Greg Sent: Saturday, October 04, 2008 7:41 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Cc: Elecraft Reflector Subject: Re: [Elecraft] Power too high in PSK31 / S Joe, I have to change the operating tips page. It was done prior to a major ALC change. I was waiting for another update as Lyle is changing the ALC meter feedback. It will change to 1-bar as the desired setting. For now, you can adjust it for 4 bars. If you cannot get 4 bars 3 is still OK. 73 Greg - Original Message - From: Joe Planisky [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Saturday, October 04, 2008 4:15 PM Subject: Re: [Elecraft] Power too high in PSK31 / S Now I don't know what to believe. In Lyle's April 6 post, he says: We recommend setting the Mic (or LINE IN) Gain so you get 5 bars of ALC, with possibly the 6th bar occasionally flickering... Yet, on the K3 Operating Tips page of the Elecraft web site, in the section about Setting up your K3 for PSK it says: Use the MIC control to set the drive level so that your output is equal or just below what you dialed in ... You should not see any ALC bars on the K3 display (when set to CMP/ALC). Rev D1 of the operating manual seems to agree with Lyle in that it says: You can use the same procedure outlined for voice modes (pg. 28) except that speech compression should not be used. [Pg. 28]: adjust MIC for a peak ALC meter indication of about 5-7 bars. If the operating tip on the web site is wrong, it ought to be corrected or removed. 73 -- Joe KB8AP On Oct 4, 2008, at 1:54 PM, Don Wilhelm wrote: Richard and all, If you look back to Lyle Johnson's reflector posting of April 6, you will find the following: (plus other good information about setting up data modes. In this case, the ALC meter display is acting as a VU Meter and is being used to help you set the Tx audio path gain correctly. It is not showing you how much you are over-driving the PA. This is why you can set it up in Tx test mode, when you are not transmitting any RF at all. Additional information can be found in Rev D of the K3 user's manual on page 32. 73, Don W3FPR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Power too high in PSK31 / S
The change to 1 bar is something we discussed, but decided to not do it. Adjust for 4 or 5 bars. If you see the hunting then either decrease MIC gain until it goes away (probably at 2 or 3 bars) , or increase it slightly until it goes away (probably at 5 bars). Increasing will activate the ALC a bit (its threshold is 5 bars) and you may see it in slightly degraded IMD. Decreasing will not degrade IMD but may slightly affect affect power control accuracy. I'm digging into the hunting among other tasks. 73, Lyle KK7P/7 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft CW Net Announcement
Good Evening, The Pacific Northwest is living up to its reputation. It has been downright soggy for the last few days. The fire feels good and most of the roof is tight. One spot persists in wetting the interior but I am working on fixing that during the lulls in the downpour. Lulls are just that since the rain has not stopped. I did see the sun but it was only a flicker and then it was gone. Deer hunting season is in full swing with trucks travelling up and down my road. Since this property has one of the rare stands of trees the trucks slow and the passengers look wistfully for deer. We are once again inside a solar stream. Conditions on twenty meters have been problematic until Friday when I had a nice contact into Alabama. From what I have read on SpaceWeather this will persist for another few days. Hopefully the conditions will be similar to what they were yesterday and tomorrow's nets will be productive. Roofing activities have left my arms and hands very stiff and sore. I am sure you will hear that tomorrow when I call. Please be kind :) Please join us tomorrow evening. 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP relay help) 3) Call by time zone (East, Central Mountain, everybody else) Sunday 2300z (Sunday 4 PM PDT) 14050 kHz Monday 0200z (Sunday 7 PM PDT) 7045 kHz Stay well, Kevin. KD5ONS ecn.visionseer.com - ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: Amp keyed during power up
Am I the only one who suffers from the K3 earthing the key out terminal while it does its clunkety klunk power up sequence? It does it in 2.38, 2.45 and 2.46 releases If I have the amp connected it keys it for around 5 seconds I would have thought that the key out socket would have been turned off during the boot sequence? Incidentally I got a very nice carrying case from [EMAIL PROTECTED] for my k3 as an anniversary present. We will see how American airlines proof it now is! Dave ww2r ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 F/W 2.46
Hi Rick The linear is an FL7000 which has a standby/operate switch. When the operate position is selected the TX icon flashes. I have auto band switching wired up together with a TX inhibit connection. I have checked and found that the TX icon only flashes when the TX inhibit connection is switched on to HI. When switched off it doesn't flash !! You learn something every day !!! 73 Barry VK2BJ From: Rick Tavan N6XI [mailto:[EMAIL PROTECTED] Sent: 5 October 2008 03:20 To: Barry Simpson Subject: Re: [Elecraft] K3 F/W 2.46 How would the K3 know that your linear is switched to standby? /Rick N6XI On 10/4/08, Barry Simpson [EMAIL PROTECTED] wrote: Further to my last posting regarding the TX icon flashing all the time, I have found that it only does that when I have the linear connected and ready to transmit. It does not flash when the linear is switched to standby. It might have always been this way and I have just never noticed before. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2: Power calibration?
Randy, If you are operating the K2 without either the KAT2, KAT100 or KPA100, then you can trust the K2 indication when operating into a 50 ohm non-reactive dummy load. If you have any doubts about your dummy load, check it with an antenna analyzer. Anything other than 50 ohms for the R component and other than zero for the X component means that your results may be skewed. But if you do have that 50+j0 load at the frequency of interest, then the basic K2 reading will be quite accurate. The WM2 must be calibrated and verified before it can be trusted, and similarly the wattmeter section of the KAT2, KAT100 and KPA100 must be calibrated before they can be trusted. After any of these instruments have been calibrated, the dependency on the precise 50 ohm dummy load goes away. but some instruments will indicate forward power and reverse power, and the two must be subtracted for the net power, while others will do that calculation automatically. As a user, you must know the characteristics of your measuring instrument before you can correctly interpret its readings. My favorite method of calibrating wattmeters is to use a precision 50 ohm dummy load and read the RF voltage produced across that load with either an RF Probe or an oscilloscope and 10X probe having a frequency rating at least 3 times (preferable 5 times or more) than the frequency being measured. The RF Probe is usable at powers up to 8 or 10 watts, but most 'scopes and probes can be used up to 100 watts or more (the peak RF voltage must be considered or damage to the probe may occur). If you can find a LP100 that has been properly calibrated, it is quite an accurate instrument that you can use for power determination. Trust only those readings that have earned their accuracy rating, and re-check the calibration periodically. If you do not have a good 50 ohm dummy load, you may want to check out some of the offerings at Ridge Equipment (Google for the URL), or one of the 50 ohm thick film power resistors mounted on a heat sink will assure you of a dummy load that can be relied on for measurement and calibration purposes. If you are not familiar with power measurement techniques, I suggest you buy, beg, borrow, or otherwise procure a copy of Experimental Methods in RF Design (an ARRL publication) and read the section on RF Power measurement, it details several good methods. EMRFD is a very good addition to any ham's library. 73, Don W3FPR Randy Moore wrote: Today I was trying to check power output on a newly constructed SW-40+ (my second one) and needed to recalibrate my WM-2 wattmeter. After doing that, I decided to check it against my K2 (#337). Not even close! The WM-2 shows 2.7 watts when the K2 shows 5. It shows about 7 w. when the K2 is set for 10 w. I double checked the calibration on the WM-2 and put in a new 9v. battery and got the same results. The WM-2 is supposed to read within 5% according to OHR. I seem to remember lots of discussion about power calibration on the K2 long ago and that there's a 1% resistor in there somewhere that's involved. I wouldn't worry about it if I was within 10% or so, but I'm not even close. I don't have another independent way of checking this. Should I believe the WM-2 or the K2 or neither??? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft enthusiast can live longer, better.
www.vitamindcouncil.orgtop eleven doctor scientist. No commercials. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] smoke test
As I sit at my computer the radio desk is to my back. I heard a burst of static behind me. That was odd since no radios were on. The only thing on at the radio desk was the desk lamp and a power supply that keeps the batteries charged. Both are plugged into a strip that switches power to them. I went over to the radio desk and looked at my equipment, both off. Still puzzled I turned on the 2m rig, all normal. Then I turned on the K3. All normal. I turned them off again. The K1 sits by, not connected to anything at this time. Still puzzled I sat there wondering if something had happened to my battery bank or one of the batteries. I have three 26AH batteries in parallel. Each battery is fused before to goes to a fused buss. Then my nose began to notice the smell we all dread. Something electrical was over heated. Still I did not noticed a symptom I should have noticed earlier, the desk lamp was off. I touched the top of the lamp and it was very hot. The bulb, a 13 Watt Florissant had failed. The ceramic base was too hot to touch. How often do Florissant bulbs fail this way? I had the feeling that if I were not there a fire may have started. 73, Ty, W1TF, K3 #696, K1 #1423 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] smoke test
Ralph - Many - not all - fluorescent lamps (I am assuming you are talking a CFL , or Compact Fluorescent Lamp) have a small resistor used as a fuse for the ballast. The ballast is in the base which supports the discharge tube (the fluorescent portion). The ballast develops the voltages needed to initially fire the tube (when cold) and limit the current once the arc is initiated. It consists of several capacitors and resistors as well as a few semiconductors. As the tube ages, the current draw increases. At some point, it becomes too much, and the ballast fails. To prevent a really catastrophic failure, a small resistor (typically a 1/8 or 1/4 watt unit) is used as a fuse. Overload destroys the resistor, cutting off the current. Why a resistor? They are much less expensive than fuses, particularly at low current ratings! The light from a CFL comes from a mercury-vapor arc inside the tube, which emits large amounts of ultraviolet light. The phosphor on the inside of the tube converts the ultraviolet energy into visible light. - Jim, KL7CC Ralph Tyrrell wrote: As I sit at my computer the radio desk is to my back. I heard a burst of static behind me. That was odd since no radios were on. The only thing on at the radio desk was the desk lamp and a power supply that keeps the batteries charged. Both are plugged into a strip that switches power to them. I went over to the radio desk and looked at my equipment, both off. Still puzzled I turned on the 2m rig, all normal. Then I turned on the K3. All normal. I turned them off again. The K1 sits by, not connected to anything at this time. Still puzzled I sat there wondering if something had happened to my battery bank or one of the batteries. I have three 26AH batteries in parallel. Each battery is fused before to goes to a fused buss. Then my nose began to notice the smell we all dread. Something electrical was over heated. Still I did not noticed a symptom I should have noticed earlier, the desk lamp was off. I touched the top of the lamp and it was very hot. The bulb, a 13 Watt Florissant had failed. The ceramic base was too hot to touch. How often do Florissant bulbs fail this way? I had the feeling that if I were not there a fire may have started. 73, Ty, W1TF, K3 #696, K1 #1423 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: A Bad Thing Happened To My K2 - Update 10/4/2008
I removed K12 from the radio and re-wound L25 because one wire broke. Removing the relay using solder wick was not successful so I used a heat gun to melt the solder on all pads at once. I used aluminum foil to shield the K2 from the heat gun. I cut an opening in the aluminum foil a bit larger than the relay and put it over the PCB exposing only the pads for the relay. I applied only enough heat to see the pads go wet and then used needle-nose pliers to pluck the relay off. I then cleaned up the pads with solder wick which left the holes nice and clean. I've contacted Elecraft for the replacement relay and should have it in a few days. I broke a wire on L25 and had to re-wind it and install it again. I also took the time to install the T/R circuit from Tom N0SS. Now I can use my K2 to drive my AL-811H to a little over 300w with about 10w drive without having to use a foot switch. After replacing K12, my next project on the K2 is to install the KAF2 audio filter board. Then I will have all options except the KPA/100, DSP and 60m modules. I guess at some point I should upgrade S/N 0539 to Revision B. Mark, KJ7BS Glendale, AZ Editor, The SKCC Centurion Elecraft K2 S/N 0539 Fists # 2972 CC 1806 SKCC # 2240 C56 T20 MQFD # 128 QRP-ARCI # 12647 AZ ScQRPions COGRC Emergency Communications -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Saunders, KJ7BS Sent: Monday, September 22, 2008 10:04 PM To: Elecraft Mail List Subject: [Elecraft] A Bad Thing Happened To My K2 Importance: High This evening I had a guest ham in the shack who was curious about my K2 and asked if we could hook it up. So we did. I pointed out which 12v power strip, power cord, and antenna to use. While I was getting the proper computer interface cables hooded up, my guest connected the radio to the power and switched it on. I heard a loud snap and immediately looked in the direction of the K2 operating position. My guest had a strange look on his face and I asked what happened. There was a spark from the outside of the antenna connector on the back of the K2 to the center connector of the coax. That can't happen, right? Wrong. After shutting down the power supply and inspecting things, I discovered my guest had wired the power backwards. Fortunately the reverse polarity circuitry protected the radio and internal battery. The radio was operating from the battery, that's why it came on. I still can't understand where the spark came from. However, I now have virtually NO receive on 40m, that's where the radio was when the spark occurred. I have transmit and receive on all other bands and transmit on 40m, just no receive on 40m. That spark killed something dealing with 40m receive. It is so bad I can't even hear the local oscillator around 7000 KHz with the pre-amp on. There is no CW or SSB receive. Mark, KJ7BS Glendale, AZ Editor, The SKCC Centurion Elecraft K2 S/N 0539 Fists # 2972 CC 1806 SKCC # 2240 C56 T20 MQFD # 128 QRP-ARCI # 12647 AZ ScQRPions COGRC Emergency Communications ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
