[Elecraft] Sam added you as a friend on Reunion.com!
Hi, I looked for you on Reunion.com, but you weren't there. Please connect with me so we can keep in touch. -Sam Do You Know Sam? YES - Connect with Sam, and see who's searching for you http://smtp26.mail.reunion.com:80/track?type=clickmailingid=68800messageid=6100databaseid=1229335869serial=1228209693emailid=elecr...@mailman.qth.netuserid=213083extra=2002http://www.reunion.com/showInviteRegistration.do?uid=320460661invitee=elecr...@mailman.qth.net NO - I don't know Sam http://smtp26.mail.reunion.com:80/track?type=clickmailingid=68800messageid=6100databaseid=1229335869serial=1228209693emailid=elecr...@mailman.qth.netuserid=213083extra=2000http://www.reunion.com/showInviteRegistration.do?unsub=trueinvitee=elecr...@mailman.qth.netuid=320460661 Reunion.com - Find Everyone from Your Past. You have received this e-mail because a Reunion.com Member sent an invitation to this e-mail address. For assistance, please refer to our FAQ or Contact Us. http://smtp26.mail.reunion.com:80/track?type=clickmailingid=68800messageid=6100databaseid=1229335869serial=1228209693emailid=elecr...@mailman.qth.netuserid=213083extra=2001http://help.reunion.com/selfhelp?lid=2 Our Address: 2118 Wilshire Blvd., Box 1008, Santa Monica, CA 90403-5784 ___ 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] K-2 Part II test and alignment problem
Larry Wright wrote: PLL Reference Osc Range Test yields 12.099 - 12.086 = 13 Khz range. But the VCO Test yields 5.535 Mhz instead of the expected 10 to 12 Mhz reading. That suggests a band switching problem, or problems with the VCO band range capacitors or varicaps. Could you possibly have spun the dial to get on band, rather than used the bandswitches. If so, you may need to do a direct frequency entry. The K-2 receives every 5 Khz . The problem seems to me to involve the What do you maan by that (although it may be a symptom of not having calibrated the reference oscillator)? 12 Bit DAC (U5). Have resoldered the pins to it.Pin 8 is 5v, but pin 7 stays at 3.4v at all times. Pin 1 on U6 stays at 7.6v. (the 8v Regulator output is 7.6v) The 7.6v output is present to the PLL ref. osc circuit. Turning the dial has no effect on the output of the DAC. The PLL Reference osc stays at 12.099 Mhz. But you previously said that the reference oscillator range check passed, which indicates that control voltage is being varied. I think this symptom arises from a failure to calibrate. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Failed Low-Power Tx Gain Calibration
I am assembling my new K3 with S/N 2361 I am finished exept KPA3 100W Option. Now performing the Configuration and Calibration tests everything seems to be working just fine except when I come to Low-Power (5W) TX Gain Calibration! Switching through the bands, bypassing the ATU, with a connected dummy-load to ANT1 something seems wrong with 160m on 1.820 KHz I get PWR-reading of 2,2W and an error msg ERR TxG on 1.900 KHz I get PWR-reading of 5.0 W but still an error msg ERR TxG on all the other bands I got 5,0W and no errors Is something wrong or is this normal?? However I want to work with full pwr also on the lower part of 160m. Is there a way to correct this situation or what can I do?? I would very much appreciate an answer from someone, before I finish the assembly process with the KPA3. 73 de SM6BGG/Kurt -- Jag använder gratisversionen av SPAMfighter för privata användare. 694 spam har blivit blockerade hittills. Betalande användare har inte detta meddelande i sin e-post. Hämta gratis SPAMfighter här: http://www.spamfighter.com/lsv ___ 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 KRX3
I have just completed the installation of a KRX3 into my K3. I found the installation process difficult but after a minor hiccup with the synthesiser calibration - I had to reload the firmware - it is working fine and appears to perform exactly the same as the main receiver. However the bad news is that the front panel microphone socket is no longer operative although the rear microphone connector works fine. And yes I have tried the various menu settings but to no avail. It would seem that all the plugging and unplugging has disturbed or broken one of the microphone socket connections. Before I start delving into the rig again has anyone any suggestion where the problem might lie. I seem to recall someone else having a similar problem after installing the KRX3. Any input would be appreciated. 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] Electret Microphone
hi Bob, On 21 Jan 2009 at 20:11, Robert C. Crawford wrote: It looks as though I can use an Icom SM-20 on the K3 by changing the wires around to match the pin outs of the K3 mic connector. Is this true? Has anyone done it? yesterday I finished a new cable to connect my Icom SM-8 microphone to the K3. It works good - better than the Yaesu MD-1 and the Kenwood MC- 43S for my taste. The best microphone for DX is the Heil Hc-5 after all. The SM-8 has two connectors and a switch, so you can use it for 2 different radios. I changed one cable for the K3. The only problem I have is the up- down buttons. I don't know how they work in the Icom microphone. There is only one common wire for up and down, and I think it is probably not compatible with the K3. Any comment on this would be appreciated. My Mic settings for the SM-8 are FPL-BIAS. For the Heil HC-5 I use RPH. I found that changing the mic level for the front connector also changes it for the rear connector. If I may add a wish for future firmware updates, it would be nice if the K3 could save this setting for each connector. It would be easier to switch from one microphone to the other. Bias is already stored seperately. 73! de Werner OE9FWV -- In the 60's, people took acid to make the world weird. Now the world is weird and people take Prozac to make it normal. PGP-Key: http://www.qsl.net/oe9fwv/furlan.asc Fone +43 5522 75013 Fax +43 5522 75013 15 Mobile +43 664 6340014 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] AGC Setting for PSK-31
I recently purchased an SB Live 24 card to use for datamodes, so I could use the built-in Realtek sound for normal computer purposes. I can honestly say I have not noticed any difference either on TX or RX in ordinary sound card operation. I imagine there might be a benefit if I was using it with an SDR (SoftRock, etc.) but I haven't tried that. Although the K3's receiver may have the dynamic range to handle working with the AGC off I think you would increase the risk of clipping or distortion somewhere in the audio path that would result in ghost signals. I prefer to operate with AGC on and use the filtering to exclude other signals that would affect the AGC to the detriment of the one I am trying to 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/AGC-Setting-for-PSK-31-tp2194895p2197068.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] K3 KRX3
Hi Barry, Do make sure that BOTH connectors between the Front Panel and DSP boards are mated. If you have the connector with the single row of pins out of it's socket then the Front Panel mic socket will not work. So far, I have managed to achieve this TWICE ! 73 Stewart G3RXQ On Thu, 22 Jan 2009 09:46:19 -, Barry Simpson wrote: I have just completed the installation of a KRX3 into my K3. I found the installation process difficult but after a minor hiccup with the synthesiser calibration I had to reload the firmware it is working fine and appears to perform exactly the same as the main receiver. However the bad news is that the front panel microphone socket is no longer operative although the rear microphone connector works fine. And yes I have tried the various menu settings but to no avail. It would seem that all the plugging and unplugging has disturbed or broken one of the microphone socket connections. Before I start delving into the rig again has anyone any suggestion where the problem might lie. I seem to recall someone else having a similar problem after installing the KRX3. Any input would be appreciated. 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
[Elecraft] [K3] For sale 2.7 khz filter
K3 For sale 2.7 khz filter Asking $60. Ted 209-601-5354 wa6...@aol.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] Filter Band shift FC *0.74 ?
I have all 8 pole filters in my K3. I've set all my filter configurations to 0 offset. I see the Filter Band Shift indicate FC *0.74. Should that be correct? Am I not understanding something? Can I change that setting? If so what do I gain? Help Ted ___ 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] REPEAT
When in the CW repeat mode, I don't seem to be able to access many of the rx controls. I see the REPEAT message on the lower line all the time, whether it is transmitting or receiving. For example, I can tune VFO B or the sub rx (I think), but I can not see the frequency display, so therefore, it is not very helpful. If I am calling CQ on one frequency and listening with the sub rx, I should be able to tune the band during the interval between calls. I didn't try all the controls, but I can't switch the preamp in or out either, any button pressing results in stopping the message. The only things that work (and display), as far as I can tell, are the filter bw controls. ___ 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] Problem mounting D25 (MV209) K2
I am currently in second stage of assembly of the RF board. After soldering D23, D24, D25 and D26 I noticed that D25 is not flush with the board. It is sitting above the board by about 1/16th of an inch. I reheated the two solder joints and try push the diode flush to the board, but it seems as if it is being held up by some sort of burr on the lead. I have been reluctant to use the solder wick to remove and re-install the diode for fear that I might overheat and damage the diode. My questions are: 1. Is this 1/16 gap on D25 significant if the other diodes are flush? 2. Should I take the risk and remove and remount D25? or 3. Should I move forward with the construction and wait to see how the system performs before I attempt to re-mount D25. Fred, KC9QQ ___ 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] W1 Watt Meter
Doug, Thank you. Please email me as I put in the ones that are too weak. The idea of the different colors is a nice touch, though, and while mine are dim, I can tell fairly well instantly if the remote tuner has finished its job. 73, Bill K9YEQ K2 #35; KX1 #35; K3 #1744; mini mods -Original Message- With Elecraft's assistance, I've tracked down Green and Yellow LEDs from the same series as the Red LED used in the W1 as well as an Amber / Orange from a different manufacturer - all available from Digi-Key. I'm planning to order these tomorrow and will advise on relative brightness once they are received / tested. I'll provide part numbers at that time. 73 Doug, VE3MV K3 #2432 - Original Message - A while back someone mentioned that they substituted different colored LED when they built the W1 watt meter, to make it easier to recognize the power ranges. Someone else mentioned that the substituted LED's might not be as bright as those supplied by Elecfraft (which are all red). Does anyone have any experience/observations with this? Thanks, Tom WB2QDG K2 1103 ___ 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] K-2 Part II test and alignment problem
Larry, Have you run the CAL PLL routine from the menu yet? If not, you do not have valid data in the EEPROM and that prevents tuning. If you wish to check the DAC, monitor the voltage at U5 pin 7 while the menu is set to CAL FCTR - when you tap the BAND+ button, the voltage should go to about 4 volts, and when you tap the BAND- button it should go near zero volts. If that check passes, the DAC is capable of working, so run CAL PLL and see if the K2 tunes afterward. Having done that, you can then check the VCO voltages at R30 and check the VCO frequencies. If either of these are incorrect, check the capacitors and varactors in the VFO Range Select area. 73, Don W3FPR Larry Wright wrote: Hi All, I am at the Alignment and Test Part II. Minor problems with direct freq entry were resolved by resoldering connections, but having difficulty described below. PLL Reference Osc Range Test yields 12.099 - 12.086 = 13 Khz range. But the VCO Test yields 5.535 Mhz instead of the expected 10 to 12 Mhz reading. The K-2 receives every 5 Khz . The problem seems to me to involve the 12 Bit DAC (U5). Have resoldered the pins to it.Pin 8 is 5v, but pin 7 stays at 3.4v at all times. Pin 1 on U6 stays at 7.6v. (the 8v Regulator output is 7.6v) The 7.6v output is present to the PLL ref. osc circuit. Turning the dial has no effect on the output of the DAC. The PLL Reference osc stays at 12.099 Mhz. BFO appears to be working fine. Sensitivity appears good as I can easily hear a 1 uv signal. I have thought of putting say, a 5 K resistor across the output of pin 1 (or from the 2.7K R19 to ground) on U6 to change the 7.6v to something lower to see if that changes anything, but not have not tried that yet. I'm trying to think of a way to test the 12 Bit DAC to see if it is good. Any suggestions or help will be greatly appreciated. Larry N4QY ___ 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: 8.0.176 / Virus Database: 270.10.10/1906 - Release Date: 1/21/2009 7:07 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] WTB - K60XV
Hello Grouop, If you have a surplus K60XV (built or unbuilt) and would like to part with, please send me an email off the list. 73 Johnny Siu VR2XMC Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多!___ 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] Problem mounting D25 (MV209) K2
Fred, Do it the easy way and leave it the way it is. Pushing all components down tight against the board is not a good idea because it can break the leads or fracture the case. There is no harm in mounting parts such as transistors and varactors with the body 1/16 to 1/8 inch above the board. 73, Don W3FPR Fred Keller wrote: I am currently in second stage of assembly of the RF board. After soldering D23, D24, D25 and D26 I noticed that D25 is not flush with the board. It is sitting above the board by about 1/16th of an inch. I reheated the two solder joints and try push the diode flush to the board, but it seems as if it is being held up by some sort of burr on the lead. I have been reluctant to use the solder wick to remove and re-install the diode for fear that I might overheat and damage the diode. My questions are: 1. Is this 1/16 gap on D25 significant if the other diodes are flush? 2. Should I take the risk and remove and remount D25? or 3. Should I move forward with the construction and wait to see how the system performs before I attempt to re-mount D25. Fred, KC9QQ ___ 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] Problem mounting D25 (MV209) K2
Thanks Don, You have eased my mind. Fred, KC9QQ On Thu, Jan 22, 2009 at 8:18 AM, Fred Keller fredjkel...@gmail.com wrote: I am currently in second stage of assembly of the RF board. After soldering D23, D24, D25 and D26 I noticed that D25 is not flush with the board. It is sitting above the board by about 1/16th of an inch. I reheated the two solder joints and try push the diode flush to the board, but it seems as if it is being held up by some sort of burr on the lead. I have been reluctant to use the solder wick to remove and re-install the diode for fear that I might overheat and damage the diode. My questions are: 1. Is this 1/16 gap on D25 significant if the other diodes are flush? 2. Should I take the risk and remove and remount D25? or 3. Should I move forward with the construction and wait to see how the system performs before I attempt to re-mount D25. Fred, KC9QQ ___ 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] AGC Setting for PSK-31
Joe Subich, W4TV wrote: If you don't want the Windows sounds getting from your computer to the radio, consider one of the interfaces with a dedicated USB soundcard, radio control (CAT interface) and other features in one box. Or just connect up the K-3 directly and turn the Windows sounds off. They are a PITA anyway. Greg KD7SRC ___ 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] Less PWR on 160m!
I am assembling my new K3 with S/N 2361 I am finished exept KPA3 100W Option. Now performing the Configuration and Calibration tests everything seems to be working just fine except when I come to Low-Power (5W) TX Gain Calibration! Switching through the bands, bypassing the ATU, with a connected dummy-load to ANT1 something seems wrong with 160m on 1.820 KHz I get PWR-reading of 2,2W and an error msg ERR TxG on 1.900 KHz I get PWR-reading of 5.0 W but still an error msg ERR TxG on all the other bands I got 5,0W and no errors Is something wrong or is this normal?? However I want to work with full pwr also on the lower part of 160m. Is there a way to correct this situation or what can I do?? I would very much appreciate an answer from someone, before I finish the assembly process with the KPA3. 73 de SM6BGG/Kurt -- Jag använder gratisversionen av SPAMfighter för privata användare. 689 spam har blivit blockerade hittills. Betalande användare har inte detta meddelande i sin e-post. Hämta gratis SPAMfighter här: http://www.spamfighter.com/lsv ___ 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] AGC Setting for PSK-31
I can honestly say I have not noticed any difference either on TX or RX in ordinary sound card operation. With the K3 the Line Out level is sufficient for nearly any sound card as long as care is taken to avoid obvious wiring errors that would introduce noise. However, with some rigs that have limited outputs (some early Kenwood transceivers or the K2 without the W3FPR modification) the signal level is in the noise floor of the soundcard. Although the K3's receiver may have the dynamic range to handle working with the AGC off I think you would increase the risk of clipping or distortion somewhere in the audio path that would result in ghost signals. Without AGC the dynamic range at Line Out is sufficient to drive most soundcards into clipping with an S9 signal if the no signal noise floor is set 10 dB above the noise floor of the sound card. Some level of AGC (compression at S9 or above) is beneficial but can also result in blocking by strong signals in a wideband decode mode as you point out. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Julian, G4ILO Sent: Thursday, January 22, 2009 5:40 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] AGC Setting for PSK-31 I recently purchased an SB Live 24 card to use for datamodes, so I could use the built-in Realtek sound for normal computer purposes. I can honestly say I have not noticed any difference either on TX or RX in ordinary sound card operation. I imagine there might be a benefit if I was using it with an SDR (SoftRock, etc.) but I haven't tried that. Although the K3's receiver may have the dynamic range to handle working with the AGC off I think you would increase the risk of clipping or distortion somewhere in the audio path that would result in ghost signals. I prefer to operate with AGC on and use the filtering to exclude other signals that would affect the AGC to the detriment of the one I am trying to 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 ___ 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] HRD cw copy
It is interesting to see the responses to my statement on the difficulty of machines copying CW better than humans. Although this is a little off-topic here, I hope we can have a short discussion of it anyway. First, the success of negative SNR communications methods such as Olivia,JT65, and PSK31, are evidence that a well-designed computer algorithm should perform better than a human. But it is on codes that have been designed for machine decoding. Second, 'better' may mean many things: faster, many QSOs in parallel, or - what I imply - at lower SNR and under difficult conditions with fading and interference. There is no doubt that a computer has much more capacity for speed and parallel decoding than a human. The steps that a good algorithm needs to do are something like this: - real-time frequency analysis and filtering - detect morse signal and lock on to a particular frequency - adaptive estimation of datarate and adaptive matched filtering for optimal detection - decoding of dashes/dots/spaces into letters - decoding into words The first steps are signal processing such as filtering, detection and adaptivity. See e.g. http://www.journal.au.edu/ijcim/jan99/ijcim_ar1.html for some ideas on the adaptive estimation. As a side remark, Coherent CW, was a way of avoiding the adaptation to variable rate and ease machine decoding, but it does not seem to be a success. I believe that it takes an extraordinary algorithm to lock onto a very weak signal reliably, but even more so to do the last and maybe even the second last step, and that this is where the similarity with speech recognition is largest. As an example, say that my call is a weak DX-call and I'm sending CQ de LA3ZA LA3ZA LA3ZA. On the receiver end you hear DA---, LA3-T, L-3ZA due to fading and interference. This is where a good operator is able to use a priori information on the syntax of a callsign, similarities between morse codes for various letters, and the three partial calls to piece this together to LA3ZA. I'm not saying this is not doable, only that it may take more than a month for a good programmer to do this, and maybe much more also. -- Sverre 2008/2009: F/LA3ZA ___ 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] Silly question - what is KEY OUT?
What is this output? Is it a source or sync? It it a switched 5V logic level or is it a relay closure line that switches from open to short? - Keith N1AS - - K3 711 - ___ 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] Silly question - what is KEY OUT?
So I could use it to drive my practice oscillator, ea ? Is it active when the rig is in TX Test mode? - Keith N1AS - - K3 711 - From: Mel Farrer [mailto:farrerfo...@yahoo.com] Sent: Thursday, January 22, 2009 12:05 PM To: Darwin, Keith Subject: Re: [Elecraft] Silly question - what is KEY OUT? It is a T-R relay capable of 200 VDC @ 5 A. Mel --- On Thu, 1/22/09, Darwin, Keith keith.dar...@goodrich.com wrote: From: Darwin, Keith keith.dar...@goodrich.com Subject: [Elecraft] Silly question - what is KEY OUT? To: elecraft@mailman.qth.net Date: Thursday, January 22, 2009, 8:57 AM What is this output? Is it a source or sync? It it a switched 5V logic level or is it a relay closure line that switches from open to short? - Keith N1AS - - K3 711 - ___ 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] Silly question - what is KEY OUT?
Kieth, From page 17 of the manual KEY OUT (RCA/Phono) is the amplifier T-R relay keying output, capable of keying up to +200VDC @ 5A. KEYOUT-LP at pin 10 of the ACC connector is similar, but the max voltage is lower and it is limited to 10 ma. 73, Don W3FPR Darwin, Keith wrote: What is this output? Is it a source or sync? It it a switched 5V logic level or is it a relay closure line that switches from open to short? - Keith N1AS - - K3 711 - ___ 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: 8.0.176 / Virus Database: 270.10.12/1909 - Release Date: 1/22/2009 7:08 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] HRD cw copy
Dan Romanchik KB6NU wrote: But copying CW isn't like trying to understand natural language. If computers can now beat grandmasters at chess, computers should be able to copy any code that a good operator can decipher. I don't even think we need more powerful computers; we just need better algorithms. Humans use lexicographical and semantic clues to fill in dropped CW characters, and computers can do the same. But this goes way beyond the simple signal processing used in, say, the K3's present CW decoder or the one used in HRD. (I studied natural language recognition in college and was anxious to play with either neural networks or traditional AI methods as the foundation for CW decoding, but my other classes got in the way :) One idea from the early days of AI is the so-called blackboard model. Imagine a garbled sentence on a blackboard, with various experts offering their opinions about what each letter and word is based on their specialized knowledge of word morphology, letter frequency, syntax, semantics, etc. You weigh these opinions based on degree of confidence, and once there's enough evidence for a letter or word, you fill it in, which in turn offers additional information to the highest-level expert, who might be considering the actual meaning of a phrase. His predictions can then strengthen the evidence for lower level symbols, and so on. Such methods are very algorithm-intensive, but might be useful for some aspects of CW stream parsing. A neural network could handle this, too, and has the advantage of self-organization. This is how I'd approach it (assuming unlimited free time--not!). You could use any of several different types of networks that have been proven successful at NLP (natural language processing). For example, you might take the incoming CW, break it into samples (say a few samples per bit at the highest code speed to be processed), shift the serial data representing 5 to 20 letters into a serial-to-parallel shift register, then feed the parallel data to the network's inputs. Or you could use a network with internal feedback (memory), with just one input, which itself could be fuzzy (the analog voltage from an envelope detector) or digital (0 or 1 depending on the output of a comparator, looking at the CW stream). The output might be a parallel binary word, perhaps ASCII, or a single output with multiple levels, where the voltage itself represents a symbol. To make this work, you need at least three things: an input representation that provides adequate context (e.g., if you want to decode a letter, the input should contain at least a few letters on either side of the target); a sufficiently complex network; and a large corpus of clean text with which to train the network (probably thousands of words, drawn from actual on-air content). One classic method of training the network involves placing known-good signals at the input, then comparing the desired outputs to the actual outputs, and back-propagating the resulting error through the network--from outputs to hidden layers to inputs--so that the network's nodes gradually acquire the proper weights. Once the network has been trained to the point that it perfectly copies clean CW, you can then present it with a noisy signal stream. A well-designed network would be able to correct dropped CW elements or even letters if its internal representation is highly evolved. The network will have learned language-specific rules, and you don't have to know how it works, anymore than you know how your own brain does it. The actual implementation is left as an exercise for the reader. If you come up with an algorithm written in 'C', let me know and I'll try to port it to the K3's PIC. Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Silly question - what is KEY OUT?
Hi Keith, From the K3 Owners Manual (Page 17): KEY OUT (RCA/Phono) is the (linear) amplifier T-R relay keying output, capable of keying up to +200VDC @ 5A. Manual Index KEY OUT: Pages 17, 19, 57 Best 73, Frank - W6NEK - Original Message - From: Darwin, Keith To: elecraft@mailman.qth.net Sent: Thursday, January 22, 2009 8:57 AM Subject: [Elecraft] Silly question - what is KEY OUT? What is this output? Is it a source or sync? It it a switched 5V logic level or is it a relay closure line that switches from open to short? - Keith N1AS - - K3 711 - ___ 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] HRD cw copy
Sverre Holm-3 wrote: It is interesting to see the responses to my statement on the difficulty of machines copying CW better than humans. Although this is a little off-topic here, I hope we can have a short discussion of it anyway. First, the success of negative SNR communications methods such as Olivia,JT65, and PSK31, are evidence that a well-designed computer algorithm should perform better than a human. But it is on codes that have been designed for machine decoding. Second, 'better' may mean many things: faster, many QSOs in parallel, or - what I imply - at lower SNR and under difficult conditions with fading and interference. There is no doubt that a computer has much more capacity for speed and parallel decoding than a human. The steps that a good algorithm needs to do are something like this: - real-time frequency analysis and filtering - detect morse signal and lock on to a particular frequency - adaptive estimation of datarate and adaptive matched filtering for optimal detection - decoding of dashes/dots/spaces into letters - decoding into words The first steps are signal processing such as filtering, detection and adaptivity. See e.g. http://www.journal.au.edu/ijcim/jan99/ijcim_ar1.html for some ideas on the adaptive estimation. As a side remark, Coherent CW, was a way of avoiding the adaptation to variable rate and ease machine decoding, but it does not seem to be a success. I believe that it takes an extraordinary algorithm to lock onto a very weak signal reliably, but even more so to do the last and maybe even the second last step, and that this is where the similarity with speech recognition is largest. As an example, say that my call is a weak DX-call and I'm sending CQ de LA3ZA LA3ZA LA3ZA. On the receiver end you hear DA---, LA3-T, L-3ZA due to fading and interference. This is where a good operator is able to use a priori information on the syntax of a callsign, similarities between morse codes for various letters, and the three partial calls to piece this together to LA3ZA. I'm not saying this is not doable, only that it may take more than a month for a good programmer to do this, and maybe much more also. Weak signal modes like WSPR, JT65, MFSK etc work as well as they do and can dig below the noise because they use different tones, rather than tone/no tone as in CW. The timing of the signal elements is also precisely known. Even with computer sent morse the program does not know the speed at which it is being sent, so it has to work that out before it can start. The vagaries of propagation then throw their spanner in the works, as the decoding algorithm does not know if absence of a tone is a valid signal element, or QSB. If you then throw in the imprecision of timing caused by hand sent morse, then you can see the computer algorithm really has a hard job to do. Computer morse decoding algorithms in use currently go no further than assuming the tones are clearly distinguishable from the spaces and that the timing of the elements are predictable. To improve the decoding performance would I think require the application of artificial intelligence to get the computer to reasses what it first thinks it receives in the light of what makes sense in the context of an amateur QSO. This is pretty much what we do when we receive code by ear. First of all the human brain is probably more adaptive to irregular element timing - left footed sending - than a computer algorithm. It learns the guy's rhythm and uses that to decode what he is sending, rather than the rigid symbol lengths of computer generated morse. Secondly the human brain uses context and knowledge to fill in the gaps and make sense of what is received. If someone sends QTH IS you expect a place name to follow. If you miss a couple of letters or what you got doesn't look like a word you use your knowledge to work out what it would be. It probably would be possible to write a computer program to do that but it would be an incredibly challenging piece of programming that would need an extremely keen mind and a great deal of time to accomplish. It would probably be a PhD level project. - 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/HRD-cw-copy-tp2195214p2198992.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] AGC Setting for PSK-31
-Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] On Behalf Of Julian, G4ILO Sent: Thursday, January 22, 2009 2:40 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] AGC Setting for PSK-31 I can honestly say I have not noticed any difference either on TX or RX in ordinary sound card operation. I'm using a Thinkpad laptop with my K3. I have a Creative E-MU 0202 connect to an LP-PAN for use with the IF output on the K3. I've been using the built in SoundMAX sound card in the laptop to do the data modes via HRD and DM. So far so good. Would I really see any advantage in using another external sound card for data modes? Isn't the MicroHAM USB Interface II more than just a USB soundcard? Would it really be required? An additional 0202 for data modes would be cheaper. Also, since HRD is using PTT via the LP-Bridge so I don't see the radio try to transmit when/if the computer makes sound via the internal soundcard. It's just like having the Windows sounds disabled. If I pull the plug from the laptops sound output I can hear the laptop sound if/when I need it without having to re-enable the sound card. Adam - ka7ark http://ka7ark.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] HRD cw copy
- Original Message - From: Dan Romanchik KB6NU kb...@w8pgw.org I don't even think we need more powerful computers; we just need better algorithms. Exactly! Simon Brown, HB9DRV www.ham-radio-deluxe.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] New K3 owner's manual available; now discounted for existing K3 owners
The K3 owner's manual has been significantly updated (revision D2), and is now available for download on our web site. (There is also a new errata sheet, rev D2-1.) This revision includes all new menu entries, fully rewritten sections on the sub receiver and DVR, an expanded index, and many other changes. You can download the new manual as a .pdf (free, as always), or purchase a printed and bound copy. Existing K3 owners now get a $10 discount off the normal price of the printed manual. We hope this is helpful for those of you who prefer a printed manual over the searchable electronic document. 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] HRD cw copy
-Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] On Behalf Of wayne burdick Sent: Thursday, January 22, 2009 9:18 AM To: Dan Romanchik KB6NU Cc: Elecraft Mailing List Subject: Re: [Elecraft] HRD cw copy The actual implementation is left as an exercise for the reader. If you come up with an algorithm written in 'C', let me know and I'll try to port it to the K3's PIC. Sounds simple! I'm busy today, so would someone please get on this so I can try it out this weekend? Thanks! ;-) Adam - ka7ark ___ 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] Silly question - what is KEY OUT?
There we go, now I get it! That is what I was assuming but there was enough doubt in my brain that I wasn't sure. Tnx 73! - Keith N1AS - - K3 711 - From: Dave Gilbert [mailto:d...@ab7e.com] Sent: Thursday, January 22, 2009 12:47 PM To: Darwin, Keith Subject: RE: [Elecraft] Silly question - what is KEY OUT? Think of it this way. Just as in software, Out refers to the flow of data or control. The terminology doesn't require a source of voltage ... only a direction of command. In this case, the control element is a relay so electrically it's just a switch that closes whenever the rig is transmitting. 73, Dave AB7E ___ 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] Silly question - what is KEY OUT?
Yes - and it is an output because it is the K3 that making a condition available (switch closure) to the outside world. An input is something coming from the outside world that would control the K3. The K3 'sends' either an open circuit or a conducting condition - it is a HEXFET driving this output - no relays are used in the K3 T/R switching or keying. I am puzzled about why you would want to connect your code practice oscillator to this output. If you want code practice, just put the K3 into TX TEST and you will hear sidetone from the K3 as you key it - no need for the external oscillator - but of course, if you 'just want to do it', then by all means go ahead with it. 73, Don W3FPR Darwin, Keith wrote: Yea, I knww, but I'm a SW person so I sometimes get lost in the EE details, even when they are very basic. By T-R Relay keying output I guess it means it is a relay that can be used to control the T/R switching of an external amp. In other words, the KEY OUT jack acts like a switch, open / closed. The Amp would have a TR line that would be providing a voltage. When the K3 KEY OUT goes to closed, the Amplifier's TR line would be pulled to ground and this would tell the amp to switch to TX. Yes? The fact it is labeled as an output confuses me a bit, making me think the K3 is sending some voltage, but the K3 sending 1KW (200 v @ 5 amps) makes no sense. I'm just hoping it can be used to make my old Heathkit code oscillator beep when I send CW with the K3. Or maybe I can use it to turn my coffee pot on :-) - Keith N1AS - - K3 711 - -Original Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] From page 17 of the manual KEY OUT (RCA/Phono) is the amplifier T-R relay keying output, capable of keying up to +200VDC @ 5A. ___ 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: 8.0.176 / Virus Database: 270.10.12/1909 - Release Date: 1/22/2009 7:08 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] AGC Setting for PSK-31
I'm using a Thinkpad laptop with my K3. I have a Creative E-MU 0202 connect to an LP-PAN for use with the IF output on the K3. I've been using the built in SoundMAX sound card in the laptop to do the data modes via HRD and DM. So far so good. Would I really see any advantage in using another external sound card for data modes? I find the built-in soundcard function on my various computers to be perfectly adequate for soundcard-based digital modes with my K3 and other radios. I have not run exhaustive tests, but I've not observed any performance improvememt when using the EMU0202 or one of the built-in-soundcard-USB-based-radio-interface widgets here. YMMV 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] AGC Setting for PSK-31
- Original Message - From: Lyle Johnson k...@wavecable.com I find the built-in soundcard function on my various computers to be perfectly adequate for soundcard-based digital modes with my K3 and other radios. A *very* good reason for using a second soundcard is that Windows will not use it for send the clicks, clacks and beeps you hear while playing with your PC. On SSTV it's easy to see when someone is using the internal soundcard instead of second card. A good soundcard will not suffer from intermod - just like a good radio. So even if you don't want to shell out for a microHam spend $50 and get a second soundcard anyway and use this for your radio. Simon Brown, HB9DRV www.ham-radio-deluxe.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] Silly question - what is KEY OUT?
Yes - and it is an output because it is the K3 that making a condition available (switch closure) to the outside world. An input is something coming from the outside world that would control the K3. The K3 'sends' either an open circuit or a conducting condition - it is a HEXFET driving this output - no relays are used in the K3 T/R switching or keying. I am puzzled about why you would want to connect your code practice oscillator to this output. If you want code practice, just put the K3 into TX TEST and you will hear sidetone from the K3 as you key it - no need for the external oscillator - but of course, if you 'just want to do it', then by all means go ahead with it. Or, one could hook the key up to the code practice oscillator, and not involve the K3 at all! 8-) 73, George T Daughters, K6GT CU in the California QSO Party (CQP) October 3-4, 2009 ___ 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] Why? For Ducking. (RE: Silly question - what is KEY OUT?)
-Original Message- I am puzzled about why you would want to connect your code practice oscillator to this output. If you want code practice, just put the K3 into TX TEST and you will hear sidetone from the K3 as you key it - no need for the external oscillator - but of course, if you 'just want to do it', then by all means go ahead with it. 73, Don W3FPR -- Why? To set up a ducking test of course :-) Here's the plan. Set the K3 MON level set to zero (no sidetone). KEY OUT connects to the code oscillator which feeds the sidechain input on my external compressor. Feed the K3 audio into the compressor main input and set the compressor to trigger when there is something on the sidechain input. So, when I send CW, the compressor hears the Heathkit oscillator and compresses (attenuates) the audio output from the K3. Using an external mixer, I can mix the compressed audio from the K3 with the audio from the code oscillator. The code oscillator will be constant level while the K3 audio will duck under it. Thanks for being an enabler :-) - Keith N1AS - - K3 711 - ___ 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] Silly question - what is KEY OUT?
OK, so how closely will it follow the keying if I'm in QSK mode? Pretty close, I assume. OR here's another question. Can I hook my Heath oscillator to the same key that is hooked to the K3? Will the keying voltage from one be an issue for the other? - Keith N1AS - - K3 711 - From: Tom Hammond [mailto:n...@embarqmail.com] Sent: Thursday, January 22, 2009 12:55 PM To: Darwin, Keith Subject: Re: [Elecraft] Silly question - what is KEY OUT? So I could use it to drive my practice oscillator, ea ? Is it active when the rig is in TX Test mode? NO! It follows the K3's T/R line (including programmed-in delays) , not keying! Tom ___ 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] tx eq for K3
Hi wonder what the average tx eq values for normal ssb? what i'm using is a modified D104 with buffer amp and my eq setting (50 HZs thru 800 HZs -16) (1200HZs +5) (2400HZs +0)(3200 HZs +0) audio reports have been good would like to know what you folks are doing with your settings...John K1GUN___ 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] Sound Cards
While the subject is sound cards internal versus external, It's worth mentioning an oddity I experience with a Dell laptop's sound card. At least one other ham has an identical problem with his (different model) Dell laptop. Both Dell machines use a Sigmatel sound chip, integrated on the mother board. This chip has a hardware sample rate set in multiples of 24 K, up to 96 ksamples/sec. (Might well be multiples of 12 Ks/s but my tests have all been at 24, 48 and 96 ks/s.) There are many programs in use written for sample rates tied to the CD-ROM 44.1 ks/s rate, and sub-multiples such as 11.025 ks/s. From my experiments, it seems that the Sigmatel chip cannot sample at 44.1 ks/s related rates, and instead samples at the a 24K multiple and synthesizes the requested rate by interpolation. This process is done, I believe, in the sound driver supplied by Dell with the laptop. The problem is that the synthesized sample rate is not close to the right speed. This shows up as a frequency error in the software. I recently ran a test with the newest version of Spectragram, a program I have great confidence in. It allows a selection of sample rates and I cranked an 1850 Hz tone into it. (Believe me, the 1850 Hz tone is accurate to well below +/- 0.01 Hz.) Spectragram reports the following frequencies, based on the sample rate, with the internal A/D chip. (Ks/s)(Hz) Sample Rate Reported Frequency 22.0501889 44.1001838 48.0001850 96.0001850 These figures are +/- a couple Hz because the FFT bin width has to be considered. I then tried the same experiment with my external E-MU 0202 sound card. No point printing a table, all the readings were 1850 Hz regardless of sample rate selected. So, why is the important? First, it means that you should calibrate your software program, in the event that you have software that allows calibration. Programs known to have odd results when the sample rates are so far off include ARGO and Frisnit's NAVTEX. The NAVTEX decoder not only displays the frequency wrong (1850 Hz tone shows as 1898 Hz) it must use sound card-based timing internally (integrate and dump post-detection filters?) as it has excess errors even for strong clean signals. Switching to the E-MU 0202 external sound card shows essentially perfect decoding under even worse signal conditions. So, it's important to know how your sound card actually behaves. I'll likely write up this, along with some sample files, as a web page over the next couple days. Jack K8ZOA ___ 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] Sound Cards
- Original Message - From: Jack Smith jack.sm...@cliftonlaboratories.com The problem is that the synthesized sample rate is not close to the right speed. This shows up as a frequency error in the software. I believe the problem exists on XP and previous, on VISTA it's fixed. It's due to crappy driver software - I once found all the info in a Microsoft employee's blog. You see this effect in SSTV a *lot*. Simon Brown, HB9DRV www.ham-radio-deluxe.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] OT: Test Equipment
If I were to buy a RF signal generator off of Ebaywhat is a good one to buy? I don't want a WWII surplus RF signal generator and do not want the 10,000 dollar one either. I would like to have a transistor RF signal generator so that kind of leaves out the old Heaths and Eicos. Does this august body of homebrew swamis have any suggestions? Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine?___ 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] tx eq for K3
I would like to know if anyone is using the EV RE27 microphone and if so, what setting are you using? Please. Phil Philip LaMarche LaMarche Enterprises, Inc. http://www.instantgourmetspices.com/ www.instantgourmetspices.com www.w9dvm.com http://www.w9dvm.com/ 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 W9DVM _ From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Sent: Thursday, January 22, 2009 1:47 PM To: elecraft@mailman.qth.net Subject: [Elecraft] tx eq for K3 Hi wonder what the average tx eq values for normal ssb? what i'm using is a modified D104 with buffer amp and my eq setting (50 HZs thru 800 HZs -16) (1200HZs +5) (2400HZs +0)(3200 HZs +0) audio reports have been good would like to know what you folks are doing with your settings...John K1GUN ___ 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] AGC Setting for PSK-31
One of the premium PCI sound cards highly recommended by N8LP (the M-Audio Audiophile 2496) for use with LP-PAN, albeit with a 90 KHz display limitation, is currently available for $85 at Amazon.com, and it might be found even cheaper elsewhere. http://www.amazon.com/gp/product/B6I5H5 73, Dave AB7E Original Message Subject: Re: [Elecraft] AGC Setting for PSK-31 From: "Simon \(HB9DRV\)" si...@hb9drv.ch Date: Thu, January 22, 2009 11:16 am A *very* good reason for using a second soundcard is that Windows will not use it for send the clicks, clacks and beeps you hear while playing with your PC. On SSTV it's easy to see when someone is using the internal soundcard instead of second card. A good soundcard will not suffer from intermod - just like a good radio. So even if you don't want to shell out for a microHam spend $50 and get a second soundcard anyway and use this for your radio. Simon Brown, HB9DRV www.ham-radio-deluxe.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Test Equipment
HP8640B is the generator of choice for (a) low phase noise and (b) more or less affordable (in the $1K and less category.) That being said, these generators are now well over 20 years old and are notorious for mechanical problems associated with switches and tuning gears. I would not purchase one unless you are prepared to do some work on it. If a switch or two isn't broken when you buy it, it soon will be. These are very complicated mechanically. If your budget will stand it, I would purchase an HP8657B, or, as a somewhat less desirable unit, an HP8567A. Both are synthesized signal generators and are free of some of the problems that have been found with their lower price brother generator, the HP8656. The phase noise and spurious outputs of these synthesized generators are much inferior to the 8640B. They are, however, fully synthesized, and can be remotely controlled over an HPIB interface, neither of which is the case for the 8640B. I have a pair of 8640Bs and a pair of 8657A's. Both 8640B's have mechanical problems that, fortunately, I can live with as I am not all that good at complicated mechanical repair work. Jack K8ZOA Lee Buller wrote: If I were to buy a RF signal generator off of Ebaywhat is a good one to buy? I don't want a WWII surplus RF signal generator and do not want the 10,000 dollar one either. I would like to have a transistor RF signal generator so that kind of leaves out the old Heaths and Eicos. Does this august body of homebrew swamis have any suggestions? Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ 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] AGC Setting for PSK-31
On Jan 22, 2009, at 10:16 AM, Simon (HB9DRV) wrote: A good soundcard will not suffer from intermod - just like a good radio. Not just with intermod, but many mediocre sound cards also suffer from bad second harmonic distortion that could be more troublesome than IMD. I have measured poor ones that have second harmonic distortion as bad as -55 dB, and I have seen traces of the second harmonic of a strong signal from them on a waterfall. I.e., similar to the problem with the K3 Line Output before applying the K8ZOA modifications. Fortunately, unlike IMD, you can nudge the VFO knob a little and get the second harmonic to fall at a different spot in the audio spectrum from a weak signal that you are trying to copy. Simon is right. The reason for using a better quality sound card with narrow band rigs is not necessarily to get a lower noise floor. It is to get lower IMD and harmonic distortion. Even the worst sound card that I have encountered in the past half dozen years had a dynamic range which beats the analog gold standard that we use on HF RTTY, the HAL ST-8000 modem. If you are using filters that only lets through a single signal to the sound card, none of this matters -- you should be able to live with 50 dB of dynamic range if only a single signal reaches the sound card, and the rig's AGC can keep the amplitude of that signal moderately constant. But many of us digital mode operators use at least a 2 kHz bandwidth; that is where good and poor sound cards can make a difference. However IMHO, it is always better to use even a poor external output sound card; to prevent system chimes, music, etc, from getting out on the air. 73 Chen, W7AY ___ 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] Silly question - what is KEY OUT?
At 10:28 AM 22 01 2009, Darwin, Keith, NA1S wrote: OK, so how closely will it follow the keying if I'm in QSK mode? Pretty close, I assume. I think you and the other responders are missing a key point. As I understand it, in QSK mode, when you close the K3 Key In, the Key Out closes and then something like 8 milliseconds later the K3 starts transmitting. When you open K3 Key In, the K3 keeps transmitting for 8 milliseconds to make up for the 8 milliseconds lost at key closure, and then Key Out stays closed for another 8 milliseconds before opening. The 8 millisecond pad on each end is to make sure that your amplifier switches both on and off without RF present. So to answer your code practice oscillator question. No. The code practice oscillator will be on something like 16 milliseconds longer than your key closure. You might or might not hear the extra 16 milliseconds. I think that the 8 milliseconds, or whatever it is, is menu adjustable, but I have just accepted the default. It keys my AL-1200 bias and an external vacuum-relay TR switch perfectly for full QSK at 40 WPM which is as fast as I ever go. 73, Hank, W6SX Mammoth Lakes, California Elevation 8083 feet in John Muir's Range of Light ___ 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] Silly question - what is KEY OUT?
Hi Keith: The Key Out relay is only energized during transmission. This is what you would want for an amplifier. So for example if you turn your VOX off and press your key or paddle, the Key Out relay will not energize. If you turn your VOX on it will energize but you will also be transmitting. If you are in normal VOX control, the Key Out relay will stay energized longer than your key press based on your VOX delay setting. So it won't follow your dits and dahs. I suppose if you turn QSK on, the Key Out will follow the dits and dahs of your key presses or the internal keyer. It was mentioned that Key Out is available on the accessory connector. I use this output for an antenna relay and it is NOT identical to the Key Out jack we have been discussing. First it is a transistor output with limited current handling capability. You would need to construct a driver circuit to interface to it. Second, it IS present when you are not transmitting. It precisely follows the dits and dahs when VOX is turned off. When VOX is turned on it has the normal VOX delay applied. I pointed this out to the factory and Wayne wrote the following: This is how it works at present, but based on customer feedback, I may change it. 73, Mike K2MK ___ 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] Silly question - what is KEY OUT?
OK, so for my needs (driving a code practice oscillator), I'd do better to take the key output that is available in the accessory connector PROVIDED my oscillator doesn't generate too much voltage at its inputs and doesn't source too much current when the inputs are shorted. Both of those are easy enough to measure with my DVM Looks like 10 ma max current, but what is the max voltage? - Keith N1AS - - K3 711 - -Original Message- From: K2MK [mailto:k...@comcast.net] Sent: Thursday, January 22, 2009 2:51 PM To: Darwin, Keith; Elecraft Reflector Subject: Re: [Elecraft] Silly question - what is KEY OUT? Hi Keith: The Key Out relay is only energized during transmission. This is what you would want for an amplifier. So for example if you turn your VOX off and press your key or paddle, the Key Out relay will not energize. If you turn your VOX on it will energize but you will also be transmitting. If you are in normal VOX control, the Key Out relay will stay energized longer than your key press based on your VOX delay setting. So it won't follow your dits and dahs. I suppose if you turn QSK on, the Key Out will follow the dits and dahs of your key presses or the internal keyer. It was mentioned that Key Out is available on the accessory connector. I use this output for an antenna relay and it is NOT identical to the Key Out jack we have been discussing. First it is a transistor output with limited current handling capability. You would need to construct a driver circuit to interface to it. Second, it IS present when you are not transmitting. It precisely follows the dits and dahs when VOX is turned off. When VOX is turned on it has the normal VOX delay applied. I pointed this out to the factory and Wayne wrote the following: This is how it works at present, but based on customer feedback, I may change it. 73, Mike K2MK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Test Equipment
The K-3 uses direct digital synthesis to get its frequencies, why not you? For those of you who want to do a little HBing . There is a direct digital synthesis RF generator kit from the below for under $30. Upper audio to 60MHz with at least 1 Hz resolution. Fits in a tiny minibox. http://www.amqrp.org/kits/dds60/ You need to be able to assemble SMT stuff. You also need to provide an attenuator since it puts out several volts. There is a free parallel port based program one may use to generate the programming word. It can run for 10 hours on an eight pack of rechargable AA NIMH batteries . Several alternative ways of providing the programming word are given in the documentation. The alternative ways involve PIC's and some programming-- not for everyone. I threw together an alternative using a BASIC STAMP, STAMP floating point processor, an LCD display and pushbuttons for input. Works for me. The unit drifts initially about 50 Hz and settles down to be as stable as the K3 in about half an hour. Recently used it ( + 80 db attenuation) and the FILTER tools program described in posts on this reflector to generate a bunch of filter plots. Worked very nicely. Held it's frequency within 1Hz for the whole series of filter runs. I have no financial interest in AMQRP or the DDS-60 product. 73 de Brian/K3KO Don Wilhelm wrote: Lee, Assuming you want quality without a lot of expense, I would wait until an HP 8640B shows up. 500 kHz to 512 MHz CW or AM (some have FM capabilities). They are well shielded and the output attenuator is calibrated - goes from +20 dBm to -130 on the fixed attenuator and can be reduced to -140 dBm. There is some warmup drift that lasts for as much as 2 hours, but they do settle down to a very stable frequency. There may be newer signal generators that have the same performance specs, but this is an old favorite of many. The only major problem I know about is reports of broken gears - mine does not suffer from that problem (yet). 73, Don W3FPR Lee Buller wrote: If I were to buy a RF signal generator off of Ebaywhat is a good one to buy? I don't want a WWII surplus RF signal generator and do not want the 10,000 dollar one either. I would like to have a transistor RF signal generator so that kind of leaves out the old Heaths and Eicos. Does this august body of homebrew swamis have any suggestions? Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ 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: 8.0.176 / Virus Database: 270.10.12/1909 - Release Date: 1/22/2009 7:08 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 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] Silly question - what is KEY OUT?
The Key Out relay is only energized during transmission. This is what you would want for an amplifier. So for example if you turn your VOX off and press your key or paddle, the Key Out relay will not energize. If you turn your VOX on it will energize but you will also be transmitting. If you are in normal VOX control, the Key Out relay will stay energized longer than your key press based on your VOX delay setting. So it won't follow your dits and dahs. I suppose if you turn QSK on, the Key Out will follow the dits and dahs of your key presses or the internal keyer. May be a bug in my K3 2306, but if you hit the paddle the key out does key the amp with the VOX turned off. Merv KH7C ___ 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] New K3 manual - a request
New K3 owner's manual available; now discounted for existing K3 owners... Tnx, Wayne, I've been waiting for this. I would like to request that when new software is released that contains additions or modifications to the CONFIG menu, that the complete CONFIG menu (not just the additions) be made available on the website for substitution in whatever manual version we have. That way, the important (and easily forgotten) MENU information will all be together in one place. VE7XF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Test Equipment
If you can get by with ham-band only frequency coverage, what about using the K3 + KXV3 + some attenuators as a signal generator? You could even forgo the KXV3 if you have attenuators that can handle 100mW. 73 -- Joe KB8AP On Jan 22, 2009, at 11:02 AM, Lee Buller wrote: If I were to buy a RF signal generator off of Ebaywhat is a good one to buy? I don't want a WWII surplus RF signal generator and do not want the 10,000 dollar one either. I would like to have a transistor RF signal generator so that kind of leaves out the old Heaths and Eicos. Does this august body of homebrew swamis have any suggestions? Lee - K0WA ___ 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] On The Appalachian Trail again
Hello, I have been thinking about working my next 2k after making my 1,000th QSO from the Appalachian Trail back in December 2008. Not a bad run just casually going out to the Appalachian Trail and making a QSO every month since March 2000. I decided to start tomorrow, 23 Jan. 2009, to start working towards my 2,000 QSO's from the AT. Since my job makes me start early, 4:00 AM or 09:00 UTC, I get out of work at noon local time. EPA land is coming out of the deep freeze . . . . 45'F now on my back porch . . . sooo I am going out on the Appalachian Trail on 23 Jan. 2009 and I should be on the air by 19:00 UTC . . . . . might start out on 40m and then go to 20m. Usual QRP frequencies. I will be on the Appalachian Trail in the state of PA using my Elecraft K1 @ 5 watts into a portable vertical and/or a Carolina Windom. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 ___ 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] New K3 manual - a request
I would like to request that when new software is released that contains additions or modifications to the CONFIG menu, that the complete CONFIG menu (not just the additions) be made available on the website for substitution in whatever manual version we have. That way, the important (and easily forgotten) MENU information will all be together in one place. OTOH, having the incremental errata sheet allows one to cut it up and paste into the manual. This retains the Elecraft characteristic of kit-building. ;) Ed - W0YK ___ 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] Silly question - what is KEY OUT?
This isn't a bug, it's the way it was implemented. Originally, whenever in cw, hitting the key would cause the rig to transmit, either in VOX or PTT mode. A change was made so that the rig would not transmit unless it was in VOX or the PTT was engaged. In PTT mode, the rig still keys but doesn't output any RF; different from the way most all other rigs behave but it works. Hopefully, once Wayne gets peoples' Duckies included, they go back and set it so unless in VOX mode the rig doesn't even key when the paddles are closed. Terry -- Original message -- From: Merv Schweigert k...@flex.com The Key Out relay is only energized during transmission. This is what you would want for an amplifier. So for example if you turn your VOX off and press your key or paddle, the Key Out relay will not energize. If you turn your VOX on it will energize but you will also be transmitting. If you are in normal VOX control, the Key Out relay will stay energized longer than your key press based on your VOX delay setting. So it won't follow your dits and dahs. I suppose if you turn QSK on, the Key Out will follow the dits and dahs of your key presses or the internal keyer. May be a bug in my K3 2306, but if you hit the paddle the key out does key the amp with the VOX turned off. Merv KH7C ___ 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] Silly question - what is KEY OUT?
Thanks Merv: I stand corrected. I just verified that the Key Out relay is energized when not transmitting. And therefore it is the same as the Key Out on the accessory connector. And when the VOX is off the Key Out will follow the dits and dahs. Learn something new every day. 73, Mike K2MK -- From: Merv Schweigert k...@flex.com Sent: Thursday, January 22, 2009 3:30 PM To: K2MK k...@comcast.net Cc: keith.dar...@goodrich.com; Elecraft Reflector elecraft@mailman.qth.net Subject: Re: [Elecraft] Silly question - what is KEY OUT? The Key Out relay is only energized during transmission. This is what you would want for an amplifier. So for example if you turn your VOX off and press your key or paddle, the Key Out relay will not energize. If you turn your VOX on it will energize but you will also be transmitting. If you are in normal VOX control, the Key Out relay will stay energized longer than your key press based on your VOX delay setting. So it won't follow your dits and dahs. I suppose if you turn QSK on, the Key Out will follow the dits and dahs of your key presses or the internal keyer. May be a bug in my K3 2306, but if you hit the paddle the key out does key the amp with the VOX turned off. Merv KH7C ___ 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 DVR repeat
I was wondering how to vary the time/pause between transmissions of a repeating DVR message? It repeats about every 5 or 6 seconds right now. Thanks, Bob W9RFS -- View this message in context: http://n2.nabble.com/K3-DVR-repeat-tp2200116p2200116.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] K3 DVR repeat
I just read how to do in the new DVR manual, Thanks, Bob W9RFS Bob W9RFS wrote: I was wondering how to vary the time/pause between transmissions of a repeating DVR message? It repeats about every 5 or 6 seconds right now. Thanks, Bob W9RFS -- View this message in context: http://n2.nabble.com/K3-DVR-repeat-tp2200116p2200140.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] K3 DVR repeat
Bob W9RFS wrote: I was wondering how to vary the time/pause between transmissions of a repeating DVR message? It repeats about every 5 or 6 seconds right now. Thanks, MAIN:MSG RPT Or did you mean to randomise it? That'd be an RFE :) ~Iain ___ 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] CW copy: Wayne's solution
Wayne Burdick wrote: Humans use lexicographical and semantic clues to fill in dropped CW characters, and computers can do the same. But this goes way beyond the simple signal processing used in, say, the K3's present CW decoder or the one used in HRD. (I studied natural language recognition in college and was anxious to play with either neural networks or traditional AI methods as the foundation for CW decoding, but my other classes got in the way :) One idea from the early days of AI is the so-called blackboard model. Imagine a garbled sentence on a blackboard, with various experts offering their opinions about what each letter and word is based on their specialized knowledge of word morphology, letter frequency, syntax, semantics, etc. You weigh these opinions based on degree of confidence, and once there's enough evidence for a letter or word, you fill it in, which in turn offers additional information to the highest-level expert, who might be considering the actual meaning of a phrase. His predictions can then strengthen the evidence for lower level symbols, and so on. Such methods are very algorithm-intensive, but might be useful for some aspects of CW stream parsing. A neural network could handle this, too, and has the advantage of self-organization. This is how I'd approach it (assuming unlimited free time--not!). You could use any of several different types of networks that have been proven successful at NLP (natural language processing). For example, you might take the incoming CW, break it into samples (say a few samples per bit at the highest code speed to be processed), shift the serial data representing 5 to 20 letters into a serial-to-parallel shift register, then feed the parallel data to the network's inputs. Or you could use a network with internal feedback (memory), with just one input, which itself could be fuzzy (the analog voltage from an envelope detector) or digital (0 or 1 depending on the output of a comparator, looking at the CW stream). The output might be a parallel binary word, perhaps ASCII, or a single output with multiple levels, where the voltage itself represents a symbol. To make this work, you need at least three things: an input representation that provides adequate context (e.g., if you want to decode a letter, the input should contain at least a few letters on either side of the target); a sufficiently complex network; and a large corpus of clean text with which to train the network (probably thousands of words, drawn from actual on-air content). One classic method of training the network involves placing known-good signals at the input, then comparing the desired outputs to the actual outputs, and back-propagating the resulting error through the network--from outputs to hidden layers to inputs--so that the network's nodes gradually acquire the proper weights. Once the network has been trained to the point that it perfectly copies clean CW, you can then present it with a noisy signal stream. A well-designed network would be able to correct dropped CW elements or even letters if its internal representation is highly evolved. The network will have learned language-specific rules, and you don't have to know how it works, anymore than you know how your own brain does it. The actual implementation is left as an exercise for the reader. If you come up with an algorithm written in 'C', let me know and I'll try to port it to the K3's PIC. Wayne N6KR Sounds good, Wayne. When can you have it done? Upper right hand button would be my choice. 73 de Terry, W0FM ___ 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] New K3 manual - a request
It is a pity there is not an HTML version. Then one would not need to keep printing out new ones - or looking up PDFs. -- View this message in context: http://n2.nabble.com/New-K3-manual---a-request-tp2199968p2200180.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] New K3 manual - a request
And what I do is to annotate the electronic form of the manual with the errata. Another nice thing about a Mac, the default pdf reader (Preview) allows this as standard. 73 de M0XDF, K3 #174 -- I believe I found the missing link between animal and civilized man. It is us. -Konrad Lorenz, ethologist, Nobel laureate (1903-1989) On 22 Jan 2009, at 20:43, Ed Muns wrote: I would like to request that when new software is released that contains additions or modifications to the CONFIG menu, that the complete CONFIG menu (not just the additions) be made available on the website for substitution in whatever manual version we have. That way, the important (and easily forgotten) MENU information will all be together in one place. OTOH, having the incremental errata sheet allows one to cut it up and paste into the manual. This retains the Elecraft characteristic of kit- building. ;) ___ 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] Silly question - what is KEY OUT?
Do not be mislead by the manual as I was last weekend during the VHF contest. The LP has nothing to do with low ***RF*** power. It is active when producing 100W or 0dBm in transverter mode. Currently there is no K3 keying output that is ONLY active when transverting. To achieve this I had to gate the KEYOUT-LP on pin 10 and the DIGOUT0 signal on pin 6 Perhaps it should have been labelled LC (low current)? Dave WW2R ) Message: 2 Date: Thu, 22 Jan 2009 12:15:33 -0500 From: Don Wilhelm w3...@embarqmail.com Subject: Re: [Elecraft] Silly question - what is KEY OUT? To: Darwin, Keith keith.dar...@goodrich.com Cc: elecraft@mailman.qth.net Message-ID: 4978a9b5.90...@embarqmail.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed Kieth, From page 17 of the manual KEYOUT-LP at pin 10 of the ACC connector is similar, but the max voltage is lower and it is limited to 10 ma. 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] New K3 manual - a request
From: Ed Muns w...@msn.com Date: Thu, 22 Jan 2009 12:43:07 -0800 I would like to request that when new software is released that contains additions or modifications to the CONFIG menu, that the complete CONFIG menu (not just the additions) be made available on the website for substitution in whatever manual version we have. That way, the important (and easily forgotten) MENU information will all be together in one place. OTOH, having the incremental errata sheet allows one to cut it up and paste into the manual. This retains the Elecraft characteristic of kit-building. Can you do this with the .pdf file, and the standard reader? Both approachs have their advantages- diff's for paper, reissue for electronic media. 73, doug ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CW copy: Wayne's solution
Wayne, This is great stuff, but Suggestion for Elecraft: make a K3 panadaptor and a KW automatic, SO2R amp higher priorities! 73, Andy, AE6Y - Original Message - From: Terry Schieler terry.schie...@wirelessusa.com To: 'wayne burdick' n...@elecraft.com; 'Dan Romanchik KB6NU' kb...@w8pgw.org Cc: 'Elecraft Mailing List' elecraft@mailman.qth.net Sent: Thursday, January 22, 2009 1:04 PM Subject: Re: [Elecraft] CW copy: Wayne's solution Wayne Burdick wrote: Humans use lexicographical and semantic clues to fill in dropped CW characters, and computers can do the same. But this goes way beyond the simple signal processing used in, say, the K3's present CW decoder or the one used in HRD. (I studied natural language recognition in college and was anxious to play with either neural networks or traditional AI methods as the foundation for CW decoding, but my other classes got in the way :) One idea from the early days of AI is the so-called blackboard model. Imagine a garbled sentence on a blackboard, with various experts offering their opinions about what each letter and word is based on their specialized knowledge of word morphology, letter frequency, syntax, semantics, etc. You weigh these opinions based on degree of confidence, and once there's enough evidence for a letter or word, you fill it in, which in turn offers additional information to the highest-level expert, who might be considering the actual meaning of a phrase. His predictions can then strengthen the evidence for lower level symbols, and so on. Such methods are very algorithm-intensive, but might be useful for some aspects of CW stream parsing. A neural network could handle this, too, and has the advantage of self-organization. This is how I'd approach it (assuming unlimited free time--not!). You could use any of several different types of networks that have been proven successful at NLP (natural language processing). For example, you might take the incoming CW, break it into samples (say a few samples per bit at the highest code speed to be processed), shift the serial data representing 5 to 20 letters into a serial-to-parallel shift register, then feed the parallel data to the network's inputs. Or you could use a network with internal feedback (memory), with just one input, which itself could be fuzzy (the analog voltage from an envelope detector) or digital (0 or 1 depending on the output of a comparator, looking at the CW stream). The output might be a parallel binary word, perhaps ASCII, or a single output with multiple levels, where the voltage itself represents a symbol. To make this work, you need at least three things: an input representation that provides adequate context (e.g., if you want to decode a letter, the input should contain at least a few letters on either side of the target); a sufficiently complex network; and a large corpus of clean text with which to train the network (probably thousands of words, drawn from actual on-air content). One classic method of training the network involves placing known-good signals at the input, then comparing the desired outputs to the actual outputs, and back-propagating the resulting error through the network--from outputs to hidden layers to inputs--so that the network's nodes gradually acquire the proper weights. Once the network has been trained to the point that it perfectly copies clean CW, you can then present it with a noisy signal stream. A well-designed network would be able to correct dropped CW elements or even letters if its internal representation is highly evolved. The network will have learned language-specific rules, and you don't have to know how it works, anymore than you know how your own brain does it. The actual implementation is left as an exercise for the reader. If you come up with an algorithm written in 'C', let me know and I'll try to port it to the K3's PIC. Wayne N6KR Sounds good, Wayne. When can you have it done? Upper right hand button would be my choice. 73 de Terry, W0FM ___ 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] New K3 owner's manual available; now discounted for existing K3 owners
Sorry to be thick, but does that ($19.95) include PP to the UK Wayne? -- Cats know exactly how we feel. They don't give a damn… but they know. On 22 Jan 2009, at 17:43, wayne burdick wrote: The K3 owner's manual has been significantly updated (revision D2), and is now available for download on our web site. (There is also a new errata sheet, rev D2-1.) This revision includes all new menu entries, fully rewritten sections on the sub receiver and DVR, an expanded index, and many other changes. You can download the new manual as a .pdf (free, as always), or purchase a printed and bound copy. Existing K3 owners now get a $10 discount off the normal price of the printed manual. We hope this is helpful for those of you who prefer a printed manual over the searchable electronic document. ___ 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] New K3 manual - a request
Doug, was that directed at me or Ed? I don't believe Adobe Reader can 73 de M0XDF, K3 #174 -- Ok, so what's the speed of Dark? On 22 Jan 2009, at 21:26, Doug Faunt N6TQS +1-510-655-8604 wrote: From: Ed Muns w...@msn.com Date: Thu, 22 Jan 2009 12:43:07 -0800 I would like to request that when new software is released that contains additions or modifications to the CONFIG menu, that the complete CONFIG menu (not just the additions) be made available on the website for substitution in whatever manual version we have. That way, the important (and easily forgotten) MENU information will all be together in one place. OTOH, having the incremental errata sheet allows one to cut it up and paste into the manual. This retains the Elecraft characteristic of kit- building. Can you do this with the .pdf file, and the standard reader? Both approachs have their advantages- diff's for paper, reissue for electronic media. ___ 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] tx eq for K3
Hi, i discovered some days ago a significant delay in the TX SSB Monitor. I turned all TX EQ setting to 0 and hoped the delay will be smaller, but no effect for my ears. I actually have no K3, but I'm thinking to get one soon. The only point which is bothering me is the delay in the SSB TX monitor. I'm wondering if it is possible to bypass the digital filters and improve delay. I'm really not in the DSP Software (I guess this part is placed in there), but maybe it is possible to use DMA transfer if all equalizer settings are 0. I'm going to a friend with a K3 the next weekend, maybe a softwareupdate fixed the delay or improved a bit more in my direction. Last time i used it was in october. 73 Olli, DH2WQ On Thu, Jan 22, 2009 at 7:47 PM, John ljdo...@suscom-maine.net wrote: Hi wonder what the average tx eq values for normal ssb? what i'm using is a modified D104 with buffer amp and my eq setting (50 HZs thru 800 HZs -16) (1200HZs +5) (2400HZs +0)(3200 HZs +0) audio reports have been good would like to know what you folks are doing with your settings...John K1GUN ___ 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] CW copy: Wayne's solution
This would have been an interesting project back when K6XN and I were at Schlumberger's AI lab. 73, doug From: Andrew Faber andrewfa...@ymail.com Date: Thu, 22 Jan 2009 13:26:42 -0800 Wayne, This is great stuff, but Suggestion for Elecraft: make a K3 panadaptor and a KW automatic, SO2R amp higher priorities! 73, Andy, AE6Y - Original Message - From: Terry Schieler terry.schie...@wirelessusa.com To: 'wayne burdick' n...@elecraft.com; 'Dan Romanchik KB6NU' kb...@w8pgw.org Cc: 'Elecraft Mailing List' elecraft@mailman.qth.net Sent: Thursday, January 22, 2009 1:04 PM Wayne Burdick wrote: Humans use lexicographical and semantic clues to fill in dropped CW characters, and computers can do the same. But this goes way beyond the simple signal processing used in, say, the K3's present CW decoder or the one used in HRD. (I studied natural language recognition in college and was anxious to play with either neural networks or traditional AI methods as the foundation for CW decoding, but my other classes got in the way :) ___ 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] on-board soundcard vs better
I have not run exhaustive tests, but I've not observed any performance improvememt when using the EMU0202 or one of the built-in-soundcard-USB-based-radio-interface widgets here. My computer has the ultra-generic onboard soundcard (AC97?) that I can't even stand to listen to music through. It generates pops or clicks. I'm much happier with the EMU 0202, if for no other reason that being able to adjust input levels to various software via a front panel knob. That and a much better s/n ratio was worth $99 to me since I use digital modes much more than SSB. 73, K4GST ___ 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] tx eq for K3
i discovered some days ago a significant delay in the TX SSB Monitor. I turned all TX EQ setting to 0 and hoped the delay will be smaller, but no effect for my ears... Changing Tx EQ settings has no effect on delay. The Tx Monitor audio in the K3 is taken from the 15 kHz IF in the DSP, after all processing has occurred. There are several milliseconds of overall delay in the path from the microphone to the speaker. The delay is entirely in the required filters, not in the speed of the DSP or the means used to transfer the samples. Tx Monitor audio could be taken just from the audio path in the DSP, but then you would not be able to hear the effect of compression, for example. We decided it was best to be able to hear the effects of all user-adjustable settings which might affect the transmit audio. 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] spam?
Not sure if this is an old problem but I just received an e-mail through this reflector about adding me to Reuniondotcom. I don't bite on this type of messaging but just was curious if anyone else has gotten this. I don't believe the senders name was aware of this but just the same looked it up on Google and it all looks like an address gathering system. WernerN8BB ___ 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] spam?
MessageI got it too and dumped it immediately. 73, Bob N6WG - Original Message - From: DeniseWerner To: Elecraft List Sent: Thursday, January 22, 2009 2:41 PM Subject: [Elecraft] spam? Not sure if this is an old problem but I just received an e-mail through this reflector about adding me to Reuniondotcom. I don't bite on this type of messaging but just was curious if anyone else has gotten this. I don't believe the senders name was aware of this but just the same looked it up on Google and it all looks like an address gathering system. WernerN8BB -- ___ 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] spam?
I got it too..marked it as junk and deleted it. Rich K2CPE K2 #1102 DeniseWerner wrote: Not sure if this is an old problem but I just received an e-mail through this reflector about adding me to Reuniondotcom. I don't bite on this type of messaging but just was curious if anyone else has gotten this. I don't believe the senders name was aware of this but just the same looked it up on Google and it all looks like an address gathering system. WernerN8BB ___ ___ 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] AGC Setting for PSK-31
-Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] On Behalf Of Jay Bromley Sent: Thursday, January 22, 2009 12:00 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] AGC Setting for PSK-31 I just did a little poking around for USB sound cards. The link http://www.usbgear.com/USB-Sound.html has a slew of USB sound cards packaged a variety of different ways. The specs on these devices appear to be identical. Probably the same internals, just package a variety of ways for marketing purposes. When specs are listed they all appear to be about the same, Sampling rate (fs): 32, 44.1, 48 kHz. I looked for specs on the internal sound card in the Thinkpad T60p. It uses a AD1981HD: HD Audio SoundMAXR Codec. The specs seem to be about the same as all these other USB devices. HD audio sample rates 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz Greater than 90 dB dynamic range S/PDIF output: 32 kHz, 44.1 kHz or 48 kHz, 16- or 24-bit Doesn't look like any of these $20 devices would gain me a thing. I was just looking for a cheap alternative to play with. Adam - ka7ark ___ 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] spam?
Yes, I received the same SPAM e-mail ... 73! Ken Kopp - K0PP http://tinyurl.com/7lm3m5 ___ 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] spam
Thanks Guy's I usually read all these postings but with the volume missed the earlier alert. Don't want to add to the noise. Great info here. 73es Werner N8BB K1 KX1 K2 K3 ___ 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] spam?
Apologies to the list. I had joined that reunion dot com a couple of days ago; had no idea such as this would happen. I un-joined immediately after I saw the email. Sam N4SAM --- On Thu, 1/22/09, DeniseWerner wernerhaschk...@sprintpcs.com wrote: From: DeniseWerner wernerhaschk...@sprintpcs.com Subject: [Elecraft] spam? To: Elecraft List Elecraft@mailman.qth.net Date: Thursday, January 22, 2009, 10:41 PM Not sure if this is an old problem but I just received an e-mail through this reflector about adding me to Reuniondotcom. I don't bite on this type of messaging but just was curious if anyone else has gotten this. I don't believe the senders name was aware of this but just the same looked it up on Google and it all looks like an address gathering system. Werner N8BB ___ 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] OT: Test Equipment
You might want to check out the siggen in this months QEX. It has I/Q output up to 200MHz. Output level is settable and controllable. And if you need low phase noise, it has provision for an external low phase noise clock. It's also small and light; can be controlled by a pc or external microprocessor. Lenny W2BVH Lee Buller wrote: If I were to buy a RF signal generator off of Ebaywhat is a good one to buy? I don't want a WWII surplus RF signal generator and do not want the 10,000 dollar one either. I would like to have a transistor RF signal generator so that kind of leaves out the old Heaths and Eicos. Does this august body of homebrew swamis have any suggestions? Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ 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] FS: K2/QRP #3375
Hi All. I've come to the decision to sell my trusty and reliable K2 to finance some new equipment for my shop shack. Elecraft K2 #3375, Fully functional, currently my main rig in the shack. KSB2 - SSB Board MD-2 - Elecraft/Heil High Performance Desk Mic KIO2 - RS232 Interface KAT2 - Automatic Antenna Tuner with 2nd Antenna port Looking for US$680 plus split on shipping in Canada/USA. Money Order Preferred. Thanks. 73/72 Jeff - VA3JFF / VE3CW == L. Jeffrey Hetherington - VA3JFF / VE3CW QRP-ARCI(sm) Contest Manager K2 #3375 for sale: US$680.00 __ Instant Messaging, free SMS, sharing photos and more... Try the new Yahoo! Canada Messenger at http://ca.beta.messenger.yahoo.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] spam?
Kudos to you for fessing up, Sam. (:-)) 73! K0PP ___ 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] CW copy: Wayne's solution---------------WHY???
On Thu, 22 Jan 2009 15:04:11 -0600 Terry Schieler terry.schie...@wirelessusa.com wrote: Wayne Burdick wrote: Humans use lexicographical and semantic clues to fill in dropped CW characters, and computers can do the same. But this goes way beyond the simple signal processing used in, say, the K3's present CW decoder or the one used in HRD. (I studied natural language recognition in college and was anxious to play with either neural networks or traditional AI methods as the foundation for CW decoding, but my other classes got in the way :) One idea from the early days of AI is the so-called blackboard model. Imagine a garbled sentence on a blackboard, with various experts offering their opinions about what each letter and word is based on their specialized knowledge of word morphology, letter frequency, syntax, semantics, etc. You weigh these opinions based on degree of confidence, and once there's enough evidence for a letter or word, you fill it in, which in turn offers additional information to the highest-level expert, who might be considering the actual meaning of a phrase. His predictions can then strengthen the evidence for lower level symbols, and so on. Such methods are very algorithm-intensive, but might be useful for some aspects of CW stream parsing. A neural network could handle this, too, and has the advantage of self-organization. This is how I'd approach it (assuming unlimited free time--not!). You could use any of several different types of networks that have been proven successful at NLP (natural language processing). For example, you might take the incoming CW, break it into samples (say a few samples per bit at the highest code speed to be processed), shift the serial data representing 5 to 20 letters into a serial-to-parallel shift register, then feed the parallel data to the network's inputs. Or you could use a network with internal feedback (memory), with just one input, which itself could be fuzzy (the analog voltage from an envelope detector) or digital (0 or 1 depending on the output of a comparator, looking at the CW stream). The output might be a parallel binary word, perhaps ASCII, or a single output with multiple levels, where the voltage itself represents a symbol. To make this work, you need at least three things: an input representation that provides adequate context (e.g., if you want to decode a letter, the input should contain at least a few letters on either side of the target); a sufficiently complex network; and a large corpus of clean text with which to train the network (probably thousands of words, drawn from actual on-air content). One classic method of training the network involves placing known-good signals at the input, then comparing the desired outputs to the actual outputs, and back-propagating the resulting error through the network--from outputs to hidden layers to inputs--so that the network's nodes gradually acquire the proper weights. Once the network has been trained to the point that it perfectly copies clean CW, you can then present it with a noisy signal stream. A well-designed network would be able to correct dropped CW elements or even letters if its internal representation is highly evolved. The network will have learned language-specific rules, and you don't have to know how it works, anymore than you know how your own brain does it. The actual implementation is left as an exercise for the reader. If you come up with an algorithm written in 'C', let me know and I'll try to port it to the K3's PIC. Wayne N6KR Sounds good, Wayne. When can you have it done? Upper right hand button would be my choice. 73 de Terry, W0FM Why would anybody want to use a CW decoder in the first place??? I guess that we who can mentally copy CW in our BRAINS have an advantage over those who really did'nt APPLY THEMSELVES to accomplish what we did (thousands WORLDWIDE!!!) I'm not an elitist nor are our other Brethren who can copy Intl. Morse, we just appreciate it's VALUE, not only in past years, but current as well!!! Regards, Jim/nn6ee ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Test Equipment
There is one on eBay right now, with 14hr to go at $227 http://cgi.ebay.co.uk/HP-8640B-SIGNAL-GENERATOR_W0QQitemZ280304509503QQcmdZViewItemQQptZBI_Signal_Sources?hash=item280304509503_trksid=p3286.m63.l1177 73 de M0XDF, K3 #174 -- Why should I fear death? If I am, death is not. If death is, I am not. Why should I fear that which cannot exist when I do? -Epicurus, philosopher (c. 341-270 BCE) On 22 Jan 2009, at 19:31, Don Wilhelm wrote: Assuming you want quality without a lot of expense, I would wait until an HP 8640B shows up. ___ 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 and KRX3 Backorders for 2008- contact Elecraft
We have tried contacting all customers with K3 or KRX3 back orders that were placed prior to Jan. 1, 2009 to confirm your orders. A few customers have not yet replied. We may have an incorrect email address or any number of cyber space issues. Please contact us immediately if you have placed a K3 order or a KRX3 order in 2008 and have not received any communication. You may email ka...@elecraft.com mailto:ka...@elecraft.com or call 831 662 8345 to discuss your order status. All backlogged orders need to be confirmed by Jan. 28^th or will be canceled. We can no longer keep orders from 2007/2008 on hold. You can certainly reorder at any time in the future. Lisa ___ 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] AGC Setting for PSK-31
Also, since HRD is using PTT via the LP-Bridge so I don't see the radio try to transmit when/if the computer makes sound via the internal soundcard. That's fine if no other program (or Windows) decides to send something to the sound card while you are transmitting. It also works if you don't run anything else while running DM780. However, there are reasons for a second sound card ... and a need for other station control/interfacing capabilities in some of the purpose built interfaces. If you are comfortable with the capabilities of your built-in soundcard, congratulations. Isn't the MicroHAM USB Interface II more than just a USB soundcard? Would it really be required? An additional 0202 for data modes would be cheaper. The USB Interface II is not a sound card ... it is a purpose built USB to serial converter with audio isolation transformers. The audio capabilities are redundant with the K3 since it has transformer isolated line in/line out. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Adam Koczarski Sent: Thursday, January 22, 2009 12:28 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] AGC Setting for PSK-31 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] On Behalf Of Julian, G4ILO Sent: Thursday, January 22, 2009 2:40 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] AGC Setting for PSK-31 I can honestly say I have not noticed any difference either on TX or RX in ordinary sound card operation. I'm using a Thinkpad laptop with my K3. I have a Creative E-MU 0202 connect to an LP-PAN for use with the IF output on the K3. I've been using the built in SoundMAX sound card in the laptop to do the data modes via HRD and DM. So far so good. Would I really see any advantage in using another external sound card for data modes? Isn't the MicroHAM USB Interface II more than just a USB soundcard? Would it really be required? An additional 0202 for data modes would be cheaper. Also, since HRD is using PTT via the LP-Bridge so I don't see the radio try to transmit when/if the computer makes sound via the internal soundcard. It's just like having the Windows sounds disabled. If I pull the plug from the laptops sound output I can hear the laptop sound if/when I need it without having to re-enable the sound card. Adam - ka7ark http://ka7ark.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][KRC2]
- Original Message - From: Frank Van Cleef To: elecraft@mailman.qth.net Sent: Thursday, January 22, 2009 5:02 PM Subject: [K3][KRC2] Greetings all; I've been trying to get my KRC2 to function properly with the K3, but it's an uphill battle. It does not appear to be willing to talk to the PC, and does not update band selection when connected to the K3. Is there anyone who is successfully using this setup that could spare a few moments to compare notes on how to set up the KRC2 and what to expect for functionality. The documentation is woefully sparse on this subject with respect to the K3. TIA, Van W1WCG ___ 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] Silly question - what is KEY OUT?
K3 #1239 with FW 2.78 also keys the amp with VOX off. That is not a bad thing for me. Being able to key that line without putting RF on the coax is useful. 73, Guy. - Original Message - From: Merv Schweigert k...@flex.com To: K2MK k...@comcast.net Cc: keith.dar...@goodrich.com; Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, January 22, 2009 3:30 PM Subject: Re: [Elecraft] Silly question - what is KEY OUT? The Key Out relay is only energized during transmission. This is what you would want for an amplifier. So for example if you turn your VOX off and press your key or paddle, the Key Out relay will not energize. If you turn your VOX on it will energize but you will also be transmitting. If you are in normal VOX control, the Key Out relay will stay energized longer than your key press based on your VOX delay setting. So it won't follow your dits and dahs. I suppose if you turn QSK on, the Key Out will follow the dits and dahs of your key presses or the internal keyer. May be a bug in my K3 2306, but if you hit the paddle the key out does key the amp with the VOX turned off. Merv KH7C ___ 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] KDVR3 backorders
We have currently tried contacting all customers with KDVR3 backorders for 2008. If you ordered a KDVR3 PRIOR to Jan. 1, 2009 and have not received an email or phone call from Elecraft, please contact us a soon as possible. You may email account...@elecraft.com mailto:account...@elecraft.com or call 831 662 8345 and ask for LaVona. She is handling all KDVR3 orders that are NOT part of K3 or KRX3 back order. If we do not hear from you by Jan. 28^th , the order will be canceled. You are welcome to re-order at any time. If you ordered AFTER Jan. 1, 2009, and have not yet received your KDVR3, your order will be shipping next week. ___ 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 high current on 15 meters
Don, Thanks for the tips. I did check the parts, they were/are correct. I am ashamed to admit (as a former quality control inspector of circuit boards) that I missed an unsoldered relay pin, on the 40 meter low pass filter relay I think it was, one pin on the end was not soldered. 15 meters now does full power at just under 3 amps. When I had the problem and was testing, I had put the current limit up to 3.5 amps, and the rig would trip the self resetting fuse inside, I thought it was rated for 3 amps??? Not sure if it was the fuse or something else, but the rig would do a quick reset... Anyway, the rig now seems to work fine in every respect, the receive seems better than 6065 was, no missing parts, a very nice kit indeed! I just ordered the antenna tuner and ssb option, the high power tuner and 100 watt amp comes later. Brett N2DTS Original Message - From: Don Wilhelm w3...@embarqmail.com To: Brett Gazdzinski brett.gazdzin...@verizon.net Cc: elecraft@mailman.qth.net Sent: Thursday, January 22, 2009 1:01 AM Subject: Re: [Elecraft] K2 high current on 15 meters Brett, Check the components in the 15/17 m Low Pass Filter carefully. Examine C218, C219, C220, C221 and C222 for correct values. Then count the number of turns on L23 and L24. Count the number of times the wire passes through the center of the core rather than the turns around the outside. Go ahead and set the CAL CUR to 3.50 amps. If you add the KPA100, you must increase the setting to 3.50, and with the higher gain using the new transistor at Q6 it is often necessary to increase the CAL CUR limit - it does no harm to increase it. 73, Don W3FPR Brett Gazdzinski wrote: I built K2 #6673 last week, and everything works well, except for a high current warning on 15 meters. The current is set at 3 amps. Things seem fine up to about 10 watts, above that, the current goes up and the power out stays the same. In doing the initial receiver alignment, 15 and 17 meters did not have a peak like the other bands did when adjusting the band pass filters, 17 meter power out seems fine. I checked that the correct components are in the correct places, and have the correct values, and that the solder is good, could I have a bad relay? The adjustments for 15 and 17 meters do peak the power output, and not at the end of their adjustments... Not a big issue, but I don't remember 6065 acting that way, I don't think I ever got the high current warning on that K2. Brett N2DTS ___ 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: 8.0.176 / Virus Database: 270.10.10/1906 - Release Date: 1/21/2009 7:07 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Silly question - what is KEY OUT?
Guy, thanks for the confirmation on that operation, wonder what you or others use the key line for with no RF? Its a pain for me as if I hit the paddle to hear speed or play cw, the relay in the amp clicks away, dont need it keying that more than needed to wear it out. Its a vacuum relay. Guess I just have no need to key the amp with no RF. How about a menu function to turn it on and off if some folks need it. Merv KH7C K3 #1239 with FW 2.78 also keys the amp with VOX off. That is not a bad thing for me. Being able to key that line without putting RF on the coax is useful. 73, Guy. - Original Message - From: Merv Schweigert k...@flex.com To: K2MK k...@comcast.net Cc: keith.dar...@goodrich.com; Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, January 22, 2009 3:30 PM Subject: Re: [Elecraft] Silly question - what is KEY OUT? The Key Out relay is only energized during transmission. This is what you would want for an amplifier. So for example if you turn your VOX off and press your key or paddle, the Key Out relay will not energize. If you turn your VOX on it will energize but you will also be transmitting. If you are in normal VOX control, the Key Out relay will stay energized longer than your key press based on your VOX delay setting. So it won't follow your dits and dahs. I suppose if you turn QSK on, the Key Out will follow the dits and dahs of your key presses or the internal keyer. May be a bug in my K3 2306, but if you hit the paddle the key out does key the amp with the VOX turned off. Merv KH7C ___ 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 AFSK problems fixed yet?
CQ WPX RTTY is getting close... have the AFSK problems been fixed yet or are we close to solutions?Ty K3MM ___ 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] New K3
There is some interaction between the mic gain and vox settings. You should be sure you have the mic gain properly set (not too low). Then with the vox gain brought up on the menu, slowly advance the gain until the vox reliably triggers. Of course, be sure you have enabled the bias. If you haven't, neither the vox nor the mike will work, assuming you have the Pro set with the IC element. Of course voice volume varies, but for what it is worth, I get very reliable vox triggering with the vox gain at about 9 or so. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob Cunnings Sent: Wednesday, January 21, 2009 9:33 AM To: elecraft Subject: Re: [Elecraft] New K3 What VOX gain settings have you tried? Bob NW8L On Wed, Jan 21, 2009 at 7:29 AM, Mike, W9QS w...@yahoo.com wrote: I have a new K3/10 Serial Number 2547 and I love it. First contacts were during the Fox hunt last night. I only have one problem. I ordered the Heil proset and for some reason I can't get the SSB VOX to function. I must be missing something. Any ideas? 73,72 Mike, W9QS EX: KN6TBP (1956), K1DGQ, DL4KM, K5LJN, W9FRR, W9KVF K2, OHR500, Norcal 20, SP1 Fists #12327, FP #268, OOTC #4423, QRPARCI #9521 ___ 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 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 KRX3
Thank you to all who replied to my problem regarding the non-operation of the front panel microphone after I installed the KRX3. The diagnosis was correct in that the pins were not mated on one of the connectors. A quick disassembly of the front panel and the DSP board got it fixed and now working great. Thanks again. 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
[Elecraft] sub receiver
I have lost my sub reciever and can not find the menu that I changed to make that happen. can anyone tell me what I did wronG and help me get my sub receiver back. what I see now in the B vfo is the time, date, 3 zero's, 13.4v, etc etc. Thanks in advance I know I am going to feel stupid after I find out what I did wrong. Bill N8WS:-( -- View this message in context: http://n2.nabble.com/sub-receiver-tp2201248p2201248.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] NR Group delay?
What's the typical delay through the NR filter when set to (my usual) N1-2? tnx jim ab3cv ___ 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 AFSK problems fixed yet?
CQ WPX RTTY is getting close... have the AFSK problems been fixed yet or are we close to solutions? The AFSK Tx tone item is #3 on my task list. 73, Lyle KK7P (just back from VK6) ___ 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] AGC Setting for PSK-31
-Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Thursday, January 22, 2009 4:27 PM To: 'Adam Koczarski'; elecraft@mailman.qth.net Subject: RE: [Elecraft] AGC Setting for PSK-31 That's fine if no other program (or Windows) decides to send something to the sound card while you are transmitting. It also works if you don't run anything else while running DM780. However, there are reasons for a second sound card ... and a need for other station control/interfacing capabilities in some of the purpose built interfaces. If you are comfortable with the capabilities of your built-in soundcard, congratulations. You're absolutely correct. That dawned on me after I sent the message. I'm using a laptop with only a few radio related programs installed on it for use with my K3. I guess disabling the Windows sounds would be the best solution if you don't have enough sound cards to run the apps you're using. I already have two, one for the LP-PAN and the internal card I'm using for data transmissions, so I guess I'd need a third sound card. The USB Interface II is not a sound card ... it is a purpose built USB to serial converter with audio isolation transformers. The audio capabilities are redundant with the K3 since it has transformer isolated line in/line out. Thank you for the clarification. Adam - ka7ark ___ 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] HRD cw copy
Me thinks you've hit upon one of the man's loves! :) On Thu, 2009-01-22 at 09:18 -0800, wayne burdick wrote: Dan Romanchik KB6NU wrote: But copying CW isn't like trying to understand natural language. If computers can now beat grandmasters at chess, computers should be able to copy any code that a good operator can decipher. I don't even think we need more powerful computers; we just need better algorithms. Humans use lexicographical and semantic clues to fill in dropped CW characters, and computers can do the same. But this goes way beyond the simple signal processing used in, say, the K3's present CW decoder or the one used in HRD. (I studied natural language recognition in college and was anxious to play with either neural networks or traditional AI methods as the foundation for CW decoding, but my other classes got in the way :) . ___ 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][KRC2]
I've been trying to get my KRC2 to function properly with the K3, but it's an uphill battle. It does not appear to be willing to talk to the PC, and does not update band selection when connected to the K3. Is there anyone who is successfully using this setup that could spare a few moments to compare notes on how to set up the KRC2 and what to expect for functionality. The documentation is woefully sparse on this subject with respect to the K3. I've been using the KRC2 with my K3s for 18 months now. I don't have the manual here right now, but I thought the latest version does give the configuration for the K3. If not, just follow the K2 configuration for the AUXBUS connection. Ed - W0YK ___ 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] NR Group delay?
Take a look at this: http://tinyurl.com/b2hvrw Bob NW8L On Thu, Jan 22, 2009 at 6:56 PM, Jim Miller j...@jtmiller.com wrote: What's the typical delay through the NR filter when set to (my usual) N1-2? tnx jim ab3cv ___ 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
