[Elecraft] [K3] Custom 700 Hz 8-Pole Filter Availability
There are still a handful of 700 Hz (wide-CW) filters available from the third production run. We cannot say how long it will be before they are all spoken for; it might be a couple of weeks, or it might might be a couple of months. Delivery is expected in early March, although most likely the batch will have sold out long before then. Visit http://www.unpcbs.com/ for technical details and to place an order. 73, Gary KI4GGX (webmaster) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K2] Rework Eliminator(TM) Option Bypass Headers Kit Availability
Our K2 Headers kits have been selling twice as fast as we expected since Ken and I produced another batch earlier this year. Whereas we initially thought we had enough to last through 2015, at this rate they'll be gone closer to the end of 2013! For the moment there's no quantity limit, but as our inventory dwindles we might impose a one-per-customer limit (and/or slightly raise the price) to avert a last minute buying frenzy. Visit http://www.unpcbs.com/ to learn more. 73, Gary KI4GGX (webmaster) P.S. We think we have sufficient K2 Internal Mic Adaptor (IMA) PCBs to last beyond 2015. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] N-Gen sold
It has been sold. Thank you for asking. 73AlanW1HYV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 SWR
Jay, The K3 protects itself against too high SWR's by cutting back power. An SWR of 1.8:1 is quite acceptable. As to why the SWR is 1.8 , there could be many reasons. 1) Antenna too long or too short. Run an SWR curve vs frequency to see which. 2) Antenna height. Depending upon height the impedance of the antenna can be very low at low heights and as much as ~100 ohms at some heights. From the antenna handbook for a half wave dipole for 20 M: Height in wavelengths Feedpoint Impedance .1 (~7 feet) 20 ohms (SWR =2.5) .17(~11 feet) 50 (SWR = 1) .34 (~22 feet)98 (SWR =2) beyond this point the impedance decreases and oscillates about a value of 72 ohms (SWR =1.44) 3) With any feedpoint impedance other than 50 ohms, the SWR seen at the shack end of the coax is highly dependent on coax length. If you bought the coax new, the last thing to consider is the coax itself - provided it hasn't been abused or is very old. It is common practice to trim the length of the antenna at a given height to attempt to adjust the SWR favorably. 73 de Brian/K3KO On 12/9/2012 2:16 AM, Jay Krishna wrote: Just completed assembling my new K3/100; I am completely new to this rig, and just getting used to it. In initial transmitter power calibration into a dummy load, I saw an SWR of ~1:1. However, into my 20M mono-band dipole, I see it is ~1.8:1. I am wondering if anybody can help answer these questions: 1. Is it safe to operate the K3 with an SWR as high as 1.8:1 (just eager to test the new K3 on the air)? 2. Do I need to check if there is a problem with my dipole antenna (wet coax, etc.)? Thanks, Jay (KD6AMA) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2634/5446 - Release Date: 12/08/12 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500 (Video)
From what I read in the manual, although it would be difficult to satisfy in every way all the non-Elecraft amps, there are some thoughtful safeguards built into the KAT500 which should help. One that comes to mind is that it doesn't drop the key line if the power is over a certain amount (29 watts default). While that would not hurt the KAP500, some other amps would be damaged if the key line was to be opened when they are producing full power. The KAT500 manual is on line and addresses the use of other than Elecraft amps. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Help-with-KeyLine-Interrupt-on-KPA500-Video-tp7566844p7566948.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500 (Video)
From what I read in the manual, although it would be difficult to satisfy in every way all the non-Elecraft amps, there are some thoughtful safeguards built into the KAT500 which should help. One that comes to mind is that it doesn't drop the key line if the power is over a certain amount (29 watts default). While that would not hurt the KAP500, some other amps would be damaged if the key line was to be opened when they are producing full power. The KAT500 manual is on line and addresses the use of other than Elecraft amps. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Help-with-KeyLine-Interrupt-on-KPA500-Video-tp7566844p7566949.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Tuning
Hi, Wouldn't all this work much better if the K3 did not key the amp when invoking the tune function? I don't have the KPA500 (yet) but the bypass function is not an option for me since my KAT500 is located remotely at the antenna site. This is working fabulously now that it has learned my frequencies. I am currently trying to raise 8P2K in the contest from the bedroom with my IC7200 to go transceiver. I can control the tuner from anywhere I can reach with my wireless or wired network. Awsome and this will greatly improve my summer operations from the rear deck. It was always a pain to have to run down to the basement to change antennas. AB2TC - Knut Iain MacDonnell - N6ML-2 wrote On Sat, Dec 8, 2012 at 6:07 PM, John Reilly lt; reillyjf@ gt; wrote: I don't think I understand how the tuning works with the KAT500. I have a K3, KPA500, and the two 15-pin cables (K3 to KAT, and KAT to KPA). I set my K3 Tune Power to 25w. I thought when I press tune on the K3, the KAT500 should tune, and it shouldn't key the Amp; however, when I do this, I continue to get around 500w from the Amp. Could someone please explain how this is supposed to work? When you invoke the K3's TUNE function (hold the XMIT button), the K3 will make a 25W key-down signal. Nothing more fancy than that happens at the K3. snip -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Tuning-tp7566931p7566950.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KAT500 remote operation
Hi, I might try a delta loop in the spring. CNY weather is not conducive to antenna work riight now. I have now hooked up two more antennas, resonant dipoles for 10 and 15m. I am happy as a blast that I got the remote KAT500 installed before winter. The rollout of the KAT500 has been surprisingly snappy. AB2TC - Knut N5GE wrote Knut, I did what Don suggests to match my MARS NVIS Loop which is fed with 450 ohm ladder-line and has a ten foot 450 ohm ladder-line stub diagonally opposite the fed corner, but added 75 ohm coax rather than 50 ohm. snip -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-remote-operation-tp7566817p7566951.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Tuning
I don't think you quite got what he meant. There is some confusion as to whether the KEY OUT line is active when the TUNE button is pushed on the K3. Sorry if I got it wrong, but some folks think that it would be advantageous if there were no key line output when pushing TUNE on the K3. Their issue is that the KAT is too slow in breaking the key line when tuning to safely not key the (whatever brand) amplifier. We do know that there is firmware in the works for the KPA500 to have it not fault so quickly when it gets keyed at the beginning of a tune before the KAT500 drops the KEY LINE. The simple solution is to put the amp in standby, or push tune on the KAT first, and then tune on the K3. I take it if you push tune first on the KAT, then it will open the key line first so that the subsequent pushing of tune on the K3 won't key the amp. Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of Eric Swartz WA6HHQ - Elecraft [e...@elecraft.com] Sent: Sunday, December 09, 2012 1:34 AM To: iain macdonnell - N6ML Cc: John Reilly; elecraft@mailman.qth.net Subject: Re: [Elecraft] [KAT500] Tuning The KAT500 will only initiate a tune based on SWR being above a threshold when it is in auto mode. Its manual mode requires a press of the tune button on the ATU first, followed by RF from the K3, for it to tune. 73, Eric www.elecraft.com _..._ On Dec 8, 2012, at 6:32 PM, iain macdonnell - N6ML a...@dseven.org wrote: On Sat, Dec 8, 2012 at 6:07 PM, John Reilly reill...@comcast.net wrote: I don't think I understand how the tuning works with the KAT500. I have a K3, KPA500, and the two 15-pin cables (K3 to KAT, and KAT to KPA). I set my K3 Tune Power to 25w. I thought when I press tune on the K3, the KAT500 should tune, and it shouldn't key the Amp; however, when I do this, I continue to get around 500w from the Amp. Could someone please explain how this is supposed to work? When you invoke the K3's TUNE function (hold the XMIT button), the K3 will make a 25W key-down signal. Nothing more fancy than that happens at the K3. If the KAT500 detects VSWR higher than the configured auto-tune threshold, it will inhibit keying to the amp, and attempt to tune (from memory first, then a full search if no suitable memory is available). If the KAT500 does not detect VSWR higher than the threshold, it will not inhibit keying, nor attempt any tune function. Are you seeing high VSWR when you invoke the K3's TUNE function? 73, ~iain / N6ML __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 SWR
It is perfectly safe. The K3 cuts back power when it sees the equivalent reflected power of a 2:1 SWR at 100 watts. So it will operate normally at a 1.8:1 SWR. If the LOWEST SWR is 1.8:1, then it probably exceeds 2:1 somewhere in the band, where you will not be able to get a full 100 watts. I suggest you check the SWR at various points (an antenna analyzer is helpful, but you can just transmit at different frequencies and record the results). Once you find the point of lowest SWR, you can determine how much to lengthen or shorten the antenna to move this point to the center of the band or your favorite spot. As another writer said, it is unlikely that you will get a 1:1 SWR from a coax-fed dipole under most circumstances. The K3 will be happy as long as it is under 2:1 (and you can still operate with reduced power if it is over 2:1). On 12/8/2012 11:16 PM, Jay Krishna wrote: Just completed assembling my new K3/100; I am completely new to this rig, and just getting used to it. In initial transmitter power calibration into a dummy load, I saw an SWR of ~1:1. However, into my 20M mono-band dipole, I see it is ~1.8:1. I am wondering if anybody can help answer these questions: 1. Is it safe to operate the K3 with an SWR as high as 1.8:1 (just eager to test the new K3 on the air)? 2. Do I need to check if there is a problem with my dipole antenna (wet coax, etc.)? Thanks, Jay (KD6AMA) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500(Video)
IMHO adapting amplifier to work with KAT500 is not the right way of doing it because KAT500 is supposed to work with many different amps of 600 watt class. Yes, PTT is generated by the radio and then passed to KAT500. KAT500 should generate it's own PTT signal for PA based on it's own KAT500 status and incoming PTT signal from the radio. If incoming PTT is present and antenna is matched then KAT500 generates PTT for the amp. This will create additional delay equal to switching time of KAT500 relays (minimum) plus some time required to analyze frequency and bring KAT500 to matching state. That is the price to pay for use of the automatic tuner. This will exclude PA faults and relays hot switching in KAT500. But then this feature can be user selectable. If you do not need it just do not use it. The question remains, is it possible to do it all in the firmware or hardware mods will be required. 73, Igor UA9CDC - Original Message - From: ke9uw c-haw...@illinois.edu To: elecraft@mailman.qth.net Sent: Saturday, December 08, 2012 6:18 PM Subject: Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500(Video) The PTT is generated by the transceiver. The KAT500 passes it thru to the amp unless the KAT is tuning a high SWR. The problem is that the amp goes into fault before the KAT can OPEN the key line. Firmware in the KAT with some delay is not the answer...it's already too slow for the amp. If there is any programmable delay in the KAT, then a firmware change might be to speed that up if possible. But I doubt that it is possible since it's a relay opening in the KAT which requires some milliseconds. I'm guessing the only Elecraft solution is to delay the amp's response to the high SWR so it doesn't Fault giving the KAT time to open the key line. So the change in firmware we are waiting on is for the KPA amp. Help me if I'm missing something here. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Help-with-KeyLine-Interrupt-on-KPA500-Video-tp7566844p7566890.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500(Video)
This whole issue has been solved by VHF/UHF stations a long time ago. They use a sequencer to key and unkey various components with appropriate delays to prevent damage. They can be built or bought fairly cheaply. Yes it would be desirable to have the sequencing be automatic. One size is unlikely to fit all though. 73 de Brian/K3KO On 12/9/2012 15:02, Igor Sokolov wrote: IMHO adapting amplifier to work with KAT500 is not the right way of doing it because KAT500 is supposed to work with many different amps of 600 watt class. Yes, PTT is generated by the radio and then passed to KAT500. KAT500 should generate it's own PTT signal for PA based on it's own KAT500 status and incoming PTT signal from the radio. If incoming PTT is present and antenna is matched then KAT500 generates PTT for the amp. This will create additional delay equal to switching time of KAT500 relays (minimum) plus some time required to analyze frequency and bring KAT500 to matching state. That is the price to pay for use of the automatic tuner. This will exclude PA faults and relays hot switching in KAT500. But then this feature can be user selectable. If you do not need it just do not use it. The question remains, is it possible to do it all in the firmware or hardware mods will be required. 73, Igor UA9CDC - Original Message - From: ke9uw c-haw...@illinois.edu To: elecraft@mailman.qth.net Sent: Saturday, December 08, 2012 6:18 PM Subject: Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500(Video) The PTT is generated by the transceiver. The KAT500 passes it thru to the amp unless the KAT is tuning a high SWR. The problem is that the amp goes into fault before the KAT can OPEN the key line. Firmware in the KAT with some delay is not the answer...it's already too slow for the amp. If there is any programmable delay in the KAT, then a firmware change might be to speed that up if possible. But I doubt that it is possible since it's a relay opening in the KAT which requires some milliseconds. I'm guessing the only Elecraft solution is to delay the amp's response to the high SWR so it doesn't Fault giving the KAT time to open the key line. So the change in firmware we are waiting on is for the KPA amp. Help me if I'm missing something here. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Help-with-KeyLine-Interrupt-on-KPA500-Video-tp7566844p7566890.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2634/5446 - Release Date: 12/08/12 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2634/5446 - Release Date: 12/08/12 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500(Video)
Brian, I fully agree that external sequencer could solve some of the issues discussed. Still I have couple of notes. 1)Sequencers are not designed to work with automatic ATUs because the amount of time required for ATU to reach tuned status is not known forehead. Therefore PTT signal to PA should be generated by ATU because only ATU knows when tuned status is achieved. 2) Since there is PTT for PA connector is already build into ATU, why not allow user to set programmable delay thus excluding the necessity for a separate sequencer? When I go on expedition every extra box (with associated cables and connectors) is counted. 73, Igor UA9CDC - Original Message - From: Brian Alsop als...@nc.rr.com To: elecraft@mailman.qth.net Sent: Sunday, December 09, 2012 9:12 PM Subject: Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500(Video) This whole issue has been solved by VHF/UHF stations a long time ago. They use a sequencer to key and unkey various components with appropriate delays to prevent damage. They can be built or bought fairly cheaply. Yes it would be desirable to have the sequencing be automatic. One size is unlikely to fit all though. 73 de Brian/K3KO On 12/9/2012 15:02, Igor Sokolov wrote: IMHO adapting amplifier to work with KAT500 is not the right way of doing it because KAT500 is supposed to work with many different amps of 600 watt class. Yes, PTT is generated by the radio and then passed to KAT500. KAT500 should generate it's own PTT signal for PA based on it's own KAT500 status and incoming PTT signal from the radio. If incoming PTT is present and antenna is matched then KAT500 generates PTT for the amp. This will create additional delay equal to switching time of KAT500 relays (minimum) plus some time required to analyze frequency and bring KAT500 to matching state. That is the price to pay for use of the automatic tuner. This will exclude PA faults and relays hot switching in KAT500. But then this feature can be user selectable. If you do not need it just do not use it. The question remains, is it possible to do it all in the firmware or hardware mods will be required. 73, Igor UA9CDC - Original Message - From: ke9uw c-haw...@illinois.edu To: elecraft@mailman.qth.net Sent: Saturday, December 08, 2012 6:18 PM Subject: Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500(Video) The PTT is generated by the transceiver. The KAT500 passes it thru to the amp unless the KAT is tuning a high SWR. The problem is that the amp goes into fault before the KAT can OPEN the key line. Firmware in the KAT with some delay is not the answer...it's already too slow for the amp. If there is any programmable delay in the KAT, then a firmware change might be to speed that up if possible. But I doubt that it is possible since it's a relay opening in the KAT which requires some milliseconds. I'm guessing the only Elecraft solution is to delay the amp's response to the high SWR so it doesn't Fault giving the KAT time to open the key line. So the change in firmware we are waiting on is for the KPA amp. Help me if I'm missing something here. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Help-with-KeyLine-Interrupt-on-KPA500-Video-tp7566844p7566890.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2634/5446 - Release Date: 12/08/12 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2634/5446 - Release Date: 12/08/12 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2/10 for Sale
Professionally built by N4TVC, Condition is excellent, non-smoking. My only reason for selling is my renewed interest in satellite operation and for that I need a second HF thru 440 radio (i.e. FT-817ND, FT-897) to use with my home brew full duplex controller. I am pretty firm at $1150 but will consider reasonable offers. Contact me off list if you are interested. 73s Jim, W4ATK Latests firmware K2 - 2.04P, KAT2 -1.07, K2 Keying modification. Frequency coverage 160m thru 10m. Power Output: 10W (nominal 12W). Includes: K2 weighted Tuning Knob (Elecraft). K60XV - 60M band and transverter adapter K160RX - 160M and receiver antenna switch KAT2 - Internal 20W automatic antenna tuner KBT2 - Internal battery kit (new battery) KDSP2 - Internal DSP and real time clock KIO2 - Aux I/O module KNB2 - Noise Blanker KSB2 - Single-Sideband adapter Custom Logo-ed Dust Cover Manuals and original documentation __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Tuning
Hi, Pressing TUNE first will indeed open the Amp key, at least that's what the utility is telling me. See here: http://ab2tc.getmyip.com/tune_without_power.png Not sure what the attenuator checkbox means. AB2TC - Knut ke9uw wrote I don't think you quite got what he meant. There is some confusion as to whether the KEY OUT line is active when the TUNE button is pushed on the K3. Sorry if I got it wrong, but some folks think that it would be advantageous if there were no key line output when pushing TUNE on the K3. Their issue is that the KAT is too slow in breaking the key line when tuning to safely not key the (whatever brand) amplifier. We do know that there is firmware in the works for the KPA500 to have it not fault so quickly when it gets keyed at the beginning of a tune before the KAT500 drops the KEY LINE. The simple solution is to put the amp in standby, or push tune on the KAT first, and then tune on the K3. I take it if you push tune first on the KAT, then it will open the key line first so that the subsequent pushing of tune on the K3 won't key the amp. Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 snip -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Tuning-tp7566931p7566958.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [KAT500] Please help with Mac-KAT500 interface
Hi all, I'm trying to control my KAT500 via the KXUSB cable to my MacBook Pro running Mountain Lion. The only two ports I see are Bluetooth-PDA-Sync and Bluetooth-Modem. The first gets KAT500 is not responding error message from the KAT Utility. The second gets a Unable to open serial port error message. Any helpful hints would be greatly appreciated. Thanks and 73, Don NA6Z __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX3 cw key-up bleed-through
I posted a question a few days earlier about the KX3 and this particular problem...thanks to those of you who responded. I was asked to post the solution, so: The issue was sending CW using VOX or MOX, the key-up signal was strong locally. I measured this with a spectrum analyzer at about 60 db down from key-down carrier. It was in spec, but locals complained a bit. Elecraft suggested I adjust TxCRNULL, and this worked, improving the suppression to about 80db down. This is the same adjustment used for carrier suppression in SSB modes. Initially the procedure in the manual did not work, and it turns out the adjustment must be made in CW mode only. It will not work in CW-REV or transverter bands, only in CW on 160-6m bands. The adjustment is independent for each band. Use the VFO knob to adjust the number, and toggle between PRE and ATTEN, there are two numbers to adjust. 73, Jim __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Please help with Mac-KAT500 interface
Don, It sounds like the FTDI driver is not installed on your MacBook. You need to download and install the latest driver for Mac OS X (V 2.2.18). http://www.ftdichip.com/Drivers/VCP.htm David, W4SMT From: Don Putnick don.putnick.n...@gmail.com To: elecraft elecraft@mailman.qth.net Sent: Sunday, December 9, 2012 11:07 AM Subject: [Elecraft] [KAT500] Please help with Mac-KAT500 interface Hi all, I'm trying to control my KAT500 via the KXUSB cable to my MacBook Pro running Mountain Lion. The only two ports I see are Bluetooth-PDA-Sync and Bluetooth-Modem. The first gets KAT500 is not responding error message from the KAT Utility. The second gets a Unable to open serial port error message. Any helpful hints would be greatly appreciated. Thanks and 73, Don NA6Z __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Tuning
The simple solution is to put the amp in standby, or push tune on the KAT first, and then tune on the K3. I take it if you push tune first on the KAT, then it will open the key line first so that the subsequent pushing of tune on the K3 won't key the amp. Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 This simple solution may work for tune but what about the following situation: Band 160m. 1810 kHz SWR = 1.5 1870kHz SWR = 6 KAT 500 was previously trained and remembers settings for both frequencies. set up - K3+ KPA500 or any othrer combo capable of full break in SP in the contest, assisted. Click on 1810 spot and work station. Then click on 1870 and start to send in full break in mode. TXD on the radio is 8 ms. T/R switching time of KPA500 is about the same or less. So far no problems. But now KAT500 needs to switch to 1870 setting. M/B timing of the relays used in KAT500 is 15 ms at best. So we have at least 7 ms of hot switching relays in KAT500 and possibly KPA500 switching to fault (or both). 73, Igor UA9CDC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 Loose Control Knobs
I have been using my K1 mobile for about a year and a half now, and am noticing that the 3 main controls - volume, RIT/XIT, and the main tuning control are now fairly loose and wiggle about a bit when I am operating them. They don't seem to be moving together like the circuit board that they are mounted on is loose, but I may be wrong on that. Any ideas on tightening them up? I did not build this radio, so I am not too familiar with what goes on inside it yet. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 Loose Control Knobs
The shafts on those controls can become worn where the shaft exits the body of the control, and that will allow an excessive amount of 'wobble' in the shaft and knob. The solution is to replace the controls. The VFO pot was improved a year or so ago, so if you have to older one with the blue body, the new one will be better and last a lot longer. Another temporary solution is to remove the knobs and add some sort of washer (like a properly sized O-ring) between the panel and the knob. 73, Don W3FPR On 12/9/2012 1:17 PM, Christopher Bowne wrote: I have been using my K1 mobile for about a year and a half now, and am noticing that the 3 main controls - volume, RIT/XIT, and the main tuning control are now fairly loose and wiggle about a bit when I am operating them. They don't seem to be moving together like the circuit board that they are mounted on is loose, but I may be wrong on that. Any ideas on tightening them up? I did not build this radio, so I am not too familiar with what goes on inside it yet. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT wanted: C++ developers to help with LotW
_ From: dx...@yahoogroups.com [mailto:dx...@yahoogroups.com] On Behalf Of Dave AA6YQ Sent: Sunday, December 09, 2012 13:08 To: dx...@yahoogroups.com; digitalra...@yahoogroups.com; hamlog...@yahoogroups.com; dx...@yahoogroups.com; aru...@yahoogroups.com; flexra...@yahoogroups.com; dx-qsl-boun...@mailman.qth.net; adif...@yahoogroups.com Subject: [dxlab] wanted: C++ developers to help with LotW With encouragement from the ARRL, Rick K1MU and I are rebooting the Trusted QSL open source project, which is hosted at http://sourceforge.net/projects/trustedqsl/ If you have demonstrably strong C++ development skills that you're interested in applying towards improving LotW's usability and efficiency, please contact me via direct email. 73, Dave, AA6YQ __._,_.___ http://groups.yahoo.com/group/dxlab/post;_ylc=X3oDMTJyYjU2Y2RrBF9TAzk3MzU5N zE0BGdycElkAzMwMDc4MzcEZ3Jwc3BJZAMxNzA1MDYzMTA4BG1zZ0lkAzExMzk5OQRzZWMDZnRyB HNsawNycGx5BHN0aW1lAzEzNTUwNzY0NDU-?act=replymessageNum=113999 Reply via web post mailto:aa...@ambersoft.com?subject=Re%3A%20wanted%3A%20C%2B%2B%20developers %20to%20help%20with%20LotW Reply to sender mailto:dx...@yahoogroups.com?subject=Re%3A%20wanted%3A%20C%2B%2B%20develope rs%20to%20help%20with%20LotW Reply to group http://groups.yahoo.com/group/dxlab/post;_ylc=X3oDMTJlbnRhY200BF9TAzk3MzU5N zE0BGdycElkAzMwMDc4MzcEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA250cGMEc3Rpb WUDMTM1NTA3NjQ0NQ-- Start a New Topic http://groups.yahoo.com/group/dxlab/message/113999;_ylc=X3oDMTM4bm01MzZlBF9 TAzk3MzU5NzE0BGdycElkAzMwMDc4MzcEZ3Jwc3BJZAMxNzA1MDYzMTA4BG1zZ0lkAzExMzk5OQR zZWMDZnRyBHNsawN2dHBjBHN0aW1lAzEzNTUwNzY0NDUEdHBjSWQDMTEzOTk5 Messages in this topic (1) Recent Activity: * http://groups.yahoo.com/group/dxlab/members;_ylc=X3oDMTJmb2pvcjk5BF9TAzk3Mz U5NzE0BGdycElkAzMwMDc4MzcEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZtYnJzBH N0aW1lAzEzNTUwNzY0NDU-?o=6 New Members 11 * http://groups.yahoo.com/group/dxlab/files;_ylc=X3oDMTJnMHBxa2FtBF9TAzk3MzU5 NzE0BGdycElkAzMwMDc4MzcEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZmaWxlcwRz dGltZQMxMzU1MDc2NDQ1 New Files 2 http://groups.yahoo.com/group/dxlab;_ylc=X3oDMTJlZHU0NzlmBF9TAzk3MzU5NzE0BG dycElkAzMwMDc4MzcEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMT M1NTA3NjQ0NQ-- Visit Your Group http://groups.yahoo.com/;_ylc=X3oDMTJkcGc1dmF0BF9TAzk3MzU5NzE0BGdycElkAzMwM Dc4MzcEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA2dmcARzdGltZQMxMzU1MDc2NDQ1 Yahoo! Groups Switch to: mailto:dxlab-traditio...@yahoogroups.com?subject=Change%20Delivery%20Format :%20Traditional Text-Only, mailto:dxlab-dig...@yahoogroups.com?subject=Email%20Delivery:%20Digest Daily Digest . mailto:dxlab-unsubscr...@yahoogroups.com?subject=Unsubscribe Unsubscribe . http://docs.yahoo.com/info/terms/ Terms of Use . mailto:ygroupsnotificati...@yahoogroups.com?subject=Feedback%20on%20the%20r edesigned%20individual%20mail%20v1 Send us Feedback . http://geo.yahoo.com/serv?s=97359714/grpId=3007837/grpspId=1705063108/msgId =113999/stime=1355076445/nc1=4025373/nc2=5758223/nc3=5522123 __,_._,___ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KAT500] Help with KeyLine Interrupt on KPA500 (Video)
You can use the Utility program to change that power limit so the KPA500 will open the key line at higher powers. See Amplifier Key Interrupt Power in your Owner's manual. 73, Ron AC7AC -Original Message- From what I read in the manual, although it would be difficult to satisfy in every way all the non-Elecraft amps, there are some thoughtful safeguards built into the KAT500 which should help. One that comes to mind is that it doesn't drop the key line if the power is over a certain amount (29 watts default). While that would not hurt the KAP500, some other amps would be damaged if the key line was to be opened when they are producing full power. The KAT500 manual is on line and addresses the use of other than Elecraft amps. - Chuck, KE9UW -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 - SWR into K3
On 12/8/2012 7:57 PM, Ron D'Eau Claire wrote: Well, putting the KAT3 in operation will correct' whatever is causing the high VSWR in the KPA500 by providing a conjugate match, but when the KPA500 is in Standby it passes the K3 output through to the KAT500. Now the input to the KAT500 is no longer the same value it was with the KAT3 bypassed so it needs to retune too. Too many K's, P's, T's and A's. :-) Let's start over. 1. Original config on *all* bands was: KAT3=BYPASS, KPA500=OPER, KAT500=tuned [all segments, all bands, all applicable antennae for each band]. 2. In original config, SWR seen by K3=1.1:1 max, often 1:1. SWR seen by KPA500=whatever the KAT500 could produce, always below 1.5:1. All this is as expected. 3. Still in original config, I started ARRL 10 CW and after awhile noticed K3 SWR=1.5:1 and wondered if something had gone south in the KPA500 input circuit. Note: KAT3 is still in bypass, SWR seen by KPA500 is still 1.1:1 where it was when I started on 10M. 4. Posted a question to the list, Gary offered: Put KAT3 in AUTO, do ATU TUNE on the K3, put KAT3 back in BYPASS. When I did this, three things happened: a) I heard the KAT3 tune, and I heard a quick relay noise from the KAT500 [not the amp], as if it *too* was adjusting. b) The SWR seen by the K3 went to 1:1 c) The SWR seen by the KPA500 was now off scale, and it faulted. 5. I then did a TUNE cycle on the KAT500, and SWR seen by KPA500 went back to 1.1:1 where it had been. SWR seen by the K3 [i.e. looking into the KPA500] remained 1:1. digressionWhen I did all of the above, I was somewhere between 28000 and 28050. It was late afternoon Sat, contest activity was waning, and I ended the day without going above 28050. This AM, there was contest activity up to about 28075 or so. The first time I tried transmitting in that segment, I had to do a TUNE cycle on the KAT500, which is even more puzzling since I had already done it in that segment and the KAT500 had memorized it./digression I understand your reply, that's not what puzzles me: -- With KAT3 in BYPASS, is the K3 not looking directly into the input impedance of the KPA500? SWR seen by K3 should be 1:1 [or very close]. It wasn't, that's what started this puzzle in the first place. -- Obviously, I can use the KAT3 to minimize the SWR seen by the K3 ... shouldn't have to but I can. And yes, that has side effects should I go to low power with KPA500 in STBY. Remember though, after doing the ATU TUNE on the K3, *the KAT3 went back to BYPASS*. -- If BYPASS on the KAT3 really means what it says, the sequence: KAT3 AUTO, ATU TUNE [on K3], KAT3 BYPASS should do nothing to the original issue ... 1.5:1 seen by the K3 ... but it did, just like Gary said it would. -- Regardless however, messing with the load seen by the K3 should not affect the load provided to the KPA500 by the KAT500, but it seems it did. -- Why would doing ATU TUNE [on K3 feeding the amp] cause the KAT500 to do anything? I've checked all the K's, P's, T's, and A's in the above and I'm convinced I got them all right. You have to read carefully. :-)) I haven't figured out how to repeat the issue since I don't know how to get the KAT3 back to whatever it was doing in BYPASS when this all started. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KPA500 presents high SWR to radio driving it
Randy, I'm not sure if it's normal or not, but I do find that if you use an analyzer on the input of the KPA500 and a 50ohm dummy load on the output, you will see a good 50 ohm 1.0:1 SWR on the analyzer in the Stand by mode. However, when you put the amp into the Operate mode you get somewhere in the neighborhood of a 2.8:1 SWR (on the 20 meter band). When you put in around 10W to the input of that KPA500 while in operate (or at least mine) than I find that I see an increase of about .5 in the SWR. IE. If I have a 50 Ohm Dummy load on the output and I put the amp on operate and transmit the 10w into the input, I see a 1.5:1 SWR on the rig connected to the input. I would see that the input level determines the SWR on the input when the amp is in the operate mode. It doesn't seem to have a fixed 50 Ohm load on the input as I would have expected it to. Now, if someone else who knows better than I would like to explain why that is, or if this is NOT normal I would love to know as well. I think that Randy's question is a very fair and reasonable one. An answer from an authority would be helpful. If you DON'T know the answer but would like to guess... I prefer you NOT, just let someone who does know do the answering. Thank you, Michael N6MQL Hello, I just spent a most enjoyable afternoon assembling SN 1213 KPA 500. Took my time and double checked every connection, wire, etc. Everything is in the right place and there are no faults, errors etc. when I power it up. However both my radios (a KX3 with ATU in bypass, and a Flex 5000 without an ATU) report high SWR with KEY DOWN. I put my SWR meter on the input side and sure enough, most bands present a 1.9:1 or higher. I have discharged the unit and removed the rear panel just in case the RF input wires were disconnected some how in assembly-both input and output are secure. I am at a loss. Anyone have any ideas? Also, I should mention on receive all bands seem VERY quiet. Also, my KX3 with ATU enabled works really hard but does make it tune-still no auto band switching and no RF out that I can see. I was really hoping to work the 10M contest this weekend with my new amp RANDY DIDDEL k5rhd...@gmail.com Follow me on APRS at: http://tinyurl.com/k5rhd-2 Homepage: http://blog.randydiddel.com -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] (no subject)
Well Elecrafters I am getting impatient (in a good way not bad) waiting for my back ordered KXBC3 charger and KXPD3 keyer. The serial number of my KX3 is 1990how close am I to a Christmas gift of my last remaining items?? To be honest it is disheartening to read of new orders shipping and customers receiving these items and I am on a waiting list because I decided to order early. Since I am being open here.I also emailed Elecraft on 4 occasions to 3 different departments to specific people asking to send just the key for the KX3 and I would pay what ever was required as the keys are in stock and shipping...as opposed to the order waiting for the KXBC3 order to be filled. Unfortunately all emails were not answered and to say the least I was shocked. Anyway my serial number is 1990 and just wondering how close I was to a shipping date?? Mike VE3WDM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KPA 100 L16 and RFC1
I am constructing the KPA 100 and have just fitted L16 and RFC1 (both blue cores wound with 37 turns of 26 gauge wire). I am having difficulty getting the two toroids to sit securely on the PCB because the leads do not align with the holes in the PCB so preventing the toroids from being pulled tight against the board. The toroids seem quite wobbly and I am concerned that with shock and vibration, the wires will break. Any suggestions? How about a very small amount of epoxy adhesive between toroids and PCB taking care to avoid the windings? Many thanks, Ray __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 presents high SWR to radio driving it
I put my K3 on 20M and put out 20 watts into the KPA500 in operate connected to a Bird dummy load and the K3 shows 1:1 SWR. Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of ARRL - N6MQL [n6...@arrl.net] Sent: Sunday, December 09, 2012 4:19 PM To: elecraft@mailman.qth.net; k5rhd...@gmail.com Subject: [Elecraft] KPA500 presents high SWR to radio driving it Randy, I'm not sure if it's normal or not, but I do find that if you use an analyzer on the input of the KPA500 and a 50ohm dummy load on the output, you will see a good 50 ohm 1.0:1 SWR on the analyzer in the Stand by mode. However, when you put the amp into the Operate mode you get somewhere in the neighborhood of a 2.8:1 SWR (on the 20 meter band). When you put in around 10W to the input of that KPA500 while in operate (or at least mine) than I find that I see an increase of about .5 in the SWR. IE. If I have a 50 Ohm Dummy load on the output and I put the amp on operate and transmit the 10w into the input, I see a 1.5:1 SWR on the rig connected to the input. I would see that the input level determines the SWR on the input when the amp is in the operate mode. It doesn't seem to have a fixed 50 Ohm load on the input as I would have expected it to. Now, if someone else who knows better than I would like to explain why that is, or if this is NOT normal I would love to know as well. I think that Randy's question is a very fair and reasonable one. An answer from an authority would be helpful. If you DON'T know the answer but would like to guess... I prefer you NOT, just let someone who does know do the answering. Thank you, Michael N6MQL Hello, I just spent a most enjoyable afternoon assembling SN 1213 KPA 500. Took my time and double checked every connection, wire, etc. Everything is in the right place and there are no faults, errors etc. when I power it up. However both my radios (a KX3 with ATU in bypass, and a Flex 5000 without an ATU) report high SWR with KEY DOWN. I put my SWR meter on the input side and sure enough, most bands present a 1.9:1 or higher. I have discharged the unit and removed the rear panel just in case the RF input wires were disconnected some how in assembly-both input and output are secure. I am at a loss. Anyone have any ideas? Also, I should mention on receive all bands seem VERY quiet. Also, my KX3 with ATU enabled works really hard but does make it tune-still no auto band switching and no RF out that I can see. I was really hoping to work the 10M contest this weekend with my new amp RANDY DIDDEL k5rhd...@gmail.com Follow me on APRS at: http://tinyurl.com/k5rhd-2 Homepage: http://blog.randydiddel.com -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Abberation
Hi All, I've noticed an odd behavior on my K3. From the time power is applied, the TX light begins to flutter on and off in a random manner. When it's on, the K3 transmits, this in CW mode. It doesn't matter which band is selected. I've just recently installed firmware version 4.60, but this has been going on for a while. This condition lasts for as long as 45 seconds, then stops on its own (so far). ANY help will be very much appreciated! TNX + 73 de Paul W6GMU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA 100 L16 and RFC1
Ray - Is it possible that the toroids are wound the wrong direction? Check the assembly illustrations carefully. It makes a difference whether the winding starts in a clockwise or counter-clockwise manner as to whether or not the leads line up with the solder holes in the PC board. Use of adhesives to secure coils is usually not recommended - although I cannot see how it could hurt, performance wise. Securing the toroids to the board could make future servicing difficult. There have been few or no reports of toroids coming loose or having wires break, even in mobile service. - Jim, KL7CC On 12/9/2012 1:31 PM, Ray Collins wrote: I am constructing the KPA 100 and have just fitted L16 and RFC1 (both blue cores wound with 37 turns of 26 gauge wire). I am having difficulty getting the two toroids to sit securely on the PCB because the leads do not align with the holes in the PCB so preventing the toroids from being pulled tight against the board. The toroids seem quite wobbly and I am concerned that with shock and vibration, the wires will break. Any suggestions? How about a very small amount of epoxy adhesive between toroids and PCB taking care to avoid the windings? Many thanks, Ray __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Remotely located KAT500 in the ARRL 10m contest
Hi all, The contest isn't quite over, but the onset of full darkness in CNY has pretty well closed the band for the day. I started the contest Friday night with just a G5RV connected to the tuner. I added two more antennas, resonant dipoles for 10 and 15m Saturday morning. Once the tuner learned my frequencies I could make an instant change between the G5RV which required lots of intervention for its raw 12:1 SWR and the dipole which had less than 1.5:1 across the phone band. The tuner decided to add 100nH inductance only and it dropped the SWR to 1:0 across most of the phone band. I had a blast with it and discovered much to my surprise that the G5RV almost always equaled or exceeded the performance of the dipole. Both are at similar heights. The ability to do an instant switch between the two including switching in the tuning elements required for each is invaluable. The setup here is: KAT500 located close to the antenna feedlines coming down in the yard. The only communication with the KAT500 is the serial link via Ethernet serial server by BB. No attempt to hook up the aux cable over that distance (100+ feet). With this setup I can control the box from anywhere I can connect to my LAN. AB2TC -- View this message in context: http://elecraft.365791.n2.nabble.com/Remotely-located-KAT500-in-the-ARRL-10m-contest-tp7566974.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 - SWR into K3
Fred, You logic is correct *except* for 2 things. First, the KAT3 BYPASS switches in elements to make the output 50 ohms. That compensates for residual reactance in the tuner itself (relay paths etc.) - so it is not a direct path from in to out. Secondly, the K3 SWR indication is at the input to the KAT3 - so if the KAT3 gets mixed up and somehow loses its memory for the inductors and capacitors to use for the BYPASS condition. the SWR indication will go up even though there is a good 50 ohm load on the output. 73, Don W3FPR On 12/9/2012 4:48 PM, Fred Jensen wrote: On 12/8/2012 7:57 PM, Ron D'Eau Claire wrote: Well, putting the KAT3 in operation will correct' whatever is causing the high VSWR in the KPA500 by providing a conjugate match, but when the KPA500 is in Standby it passes the K3 output through to the KAT500. Now the input to the KAT500 is no longer the same value it was with the KAT3 bypassed so it needs to retune too. Too many K's, P's, T's and A's. :-) Let's start over. 1. Original config on *all* bands was: KAT3=BYPASS, KPA500=OPER, KAT500=tuned [all segments, all bands, all applicable antennae for each band]. 2. In original config, SWR seen by K3=1.1:1 max, often 1:1. SWR seen by KPA500=whatever the KAT500 could produce, always below 1.5:1. All this is as expected. 3. Still in original config, I started ARRL 10 CW and after awhile noticed K3 SWR=1.5:1 and wondered if something had gone south in the KPA500 input circuit. Note: KAT3 is still in bypass, SWR seen by KPA500 is still 1.1:1 where it was when I started on 10M. 4. Posted a question to the list, Gary offered: Put KAT3 in AUTO, do ATU TUNE on the K3, put KAT3 back in BYPASS. When I did this, three things happened: a) I heard the KAT3 tune, and I heard a quick relay noise from the KAT500 [not the amp], as if it *too* was adjusting. b) The SWR seen by the K3 went to 1:1 c) The SWR seen by the KPA500 was now off scale, and it faulted. 5. I then did a TUNE cycle on the KAT500, and SWR seen by KPA500 went back to 1.1:1 where it had been. SWR seen by the K3 [i.e. looking into the KPA500] remained 1:1. digressionWhen I did all of the above, I was somewhere between 28000 and 28050. It was late afternoon Sat, contest activity was waning, and I ended the day without going above 28050. This AM, there was contest activity up to about 28075 or so. The first time I tried transmitting in that segment, I had to do a TUNE cycle on the KAT500, which is even more puzzling since I had already done it in that segment and the KAT500 had memorized it./digression I understand your reply, that's not what puzzles me: -- With KAT3 in BYPASS, is the K3 not looking directly into the input impedance of the KPA500? SWR seen by K3 should be 1:1 [or very close]. It wasn't, that's what started this puzzle in the first place. -- Obviously, I can use the KAT3 to minimize the SWR seen by the K3 ... shouldn't have to but I can. And yes, that has side effects should I go to low power with KPA500 in STBY. Remember though, after doing the ATU TUNE on the K3, *the KAT3 went back to BYPASS*. -- If BYPASS on the KAT3 really means what it says, the sequence: KAT3 AUTO, ATU TUNE [on K3], KAT3 BYPASS should do nothing to the original issue ... 1.5:1 seen by the K3 ... but it did, just like Gary said it would. -- Regardless however, messing with the load seen by the K3 should not affect the load provided to the KPA500 by the KAT500, but it seems it did. -- Why would doing ATU TUNE [on K3 feeding the amp] cause the KAT500 to do anything? I've checked all the K's, P's, T's, and A's in the above and I'm convinced I got them all right. You have to read carefully. :-)) I haven't figured out how to repeat the issue since I don't know how to get the KAT3 back to whatever it was doing in BYPASS when this all started. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KXBC3 and KXPD3
Well Elecrafters I am getting impatient (in a good way not bad) waiting for my back ordered KXBC3 charger and KXPD3 keyer. The serial number of my KX3 is 1990how close am I to a Christmas gift of my last remaining items?? To be honest it is disheartening to read of new orders shipping and customers receiving these items and I am on a waiting list because I decided to order early. Since I am being open here.I also emailed Elecraft on 4 occasions to 3 different departments to specific people asking to send just the key for the KX3 and I would pay what ever was required as the keys are in stock and shipping...as opposed to the order waiting for the KXBC3 order to be filled. Unfortunately all emails were not answered and to say the least I was shocked. Anyway my serial number is 1990 and just wondering how close I was to a shipping date?? Mike VE3WDM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA 100 L16 and RFC1
Ray, I have only once found a toroid with a broken wire, and I suspect the builder nicked the wire when he was stripping the leads. Yes, those 2 inductors have the holes in line with the silkscreen shape of the inductor. There is no good reason why the cores have to align with the silkscreen, just snug up the leads and solder. If you insist on using a fixative of some kind, a small dab of hot melt glue on either side of the core should be more than adequate. I do not recommend epoxy - if you ever have to re-wind the toroids, you will not get the epoxy off either the board or the toroid core. 73, Don W3FPR On 12/9/2012 5:31 PM, Ray Collins wrote: I am constructing the KPA 100 and have just fitted L16 and RFC1 (both blue cores wound with 37 turns of 26 gauge wire). I am having difficulty getting the two toroids to sit securely on the PCB because the leads do not align with the holes in the PCB so preventing the toroids from being pulled tight against the board. The toroids seem quite wobbly and I am concerned that with shock and vibration, the wires will break. Any suggestions? How about a very small amount of epoxy adhesive between toroids and PCB taking care to avoid the windings? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 - SWR into K3
Sri Fred. I stumble around over all the K's, A's, P's et cetera myself. It's most maddening when I do it writing a manual :-) RISING INPUT SWR TO KPA500: The fact that the SWR into the KPA500 rises with time is puzzling. That surely suggests something is changing as it heats up. However, from my experience and the comments I have seen from others, the KPA500 does *not* provide a 1:1 match to the K3 on 10 meters. Mine is 1.7:1 on 10, 1.4:1 on 6 and 12 meters and 1.1:1 or better on all of the other bands. I've not worried about it since the K3 only provides low-level drive RF to the amp anyway. I can't say if the SWR changes through steady use. Shoot, I've not had time to get on the air in over six months, and haven't worked 10 in a much longer time. KAT500 MIS-TUNING: A single click suggests that the KAT500 was shifting to a memorized tuning configuration or changing antennas, either of which would show a high SWR to the amp of course. But that would happen only if you changed frequency at the K3. Is that possible? Can you repeat the event? I know that you sort of did the next day, but how about if you try it immediately after the KAT500 tunes with full power running. What is the SWR into your antenna feed line? (You can see that using the Utility program.) Any chance something in the antenna system is changing on ten meters? 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fred Jensen Sent: Sunday, December 09, 2012 1:49 PM To: Elecraft Reflector Subject: Re: [Elecraft] KPA500 - SWR into K3 On 12/8/2012 7:57 PM, Ron D'Eau Claire wrote: Well, putting the KAT3 in operation will correct' whatever is causing the high VSWR in the KPA500 by providing a conjugate match, but when the KPA500 is in Standby it passes the K3 output through to the KAT500. Now the input to the KAT500 is no longer the same value it was with the KAT3 bypassed so it needs to retune too. Too many K's, P's, T's and A's. :-) Let's start over. 1. Original config on *all* bands was: KAT3=BYPASS, KPA500=OPER, KAT500=tuned [all segments, all bands, all applicable antennae for each band]. 2. In original config, SWR seen by K3=1.1:1 max, often 1:1. SWR seen by KPA500=whatever the KAT500 could produce, always below 1.5:1. All this is as expected. 3. Still in original config, I started ARRL 10 CW and after awhile noticed K3 SWR=1.5:1 and wondered if something had gone south in the KPA500 input circuit. Note: KAT3 is still in bypass, SWR seen by KPA500 is still 1.1:1 where it was when I started on 10M. 4. Posted a question to the list, Gary offered: Put KAT3 in AUTO, do ATU TUNE on the K3, put KAT3 back in BYPASS. When I did this, three things happened: a) I heard the KAT3 tune, and I heard a quick relay noise from the KAT500 [not the amp], as if it *too* was adjusting. b) The SWR seen by the K3 went to 1:1 c) The SWR seen by the KPA500 was now off scale, and it faulted. 5. I then did a TUNE cycle on the KAT500, and SWR seen by KPA500 went back to 1.1:1 where it had been. SWR seen by the K3 [i.e. looking into the KPA500] remained 1:1. digressionWhen I did all of the above, I was somewhere between 28000 and 28050. It was late afternoon Sat, contest activity was waning, and I ended the day without going above 28050. This AM, there was contest activity up to about 28075 or so. The first time I tried transmitting in that segment, I had to do a TUNE cycle on the KAT500, which is even more puzzling since I had already done it in that segment and the KAT500 had memorized it./digression I understand your reply, that's not what puzzles me: -- With KAT3 in BYPASS, is the K3 not looking directly into the input impedance of the KPA500? SWR seen by K3 should be 1:1 [or very close]. It wasn't, that's what started this puzzle in the first place. -- Obviously, I can use the KAT3 to minimize the SWR seen by the K3 ... shouldn't have to but I can. And yes, that has side effects should I go to low power with KPA500 in STBY. Remember though, after doing the ATU TUNE on the K3, *the KAT3 went back to BYPASS*. -- If BYPASS on the KAT3 really means what it says, the sequence: KAT3 AUTO, ATU TUNE [on K3], KAT3 BYPASS should do nothing to the original issue ... 1.5:1 seen by the K3 ... but it did, just like Gary said it would. -- Regardless however, messing with the load seen by the K3 should not affect the load provided to the KPA500 by the KAT500, but it seems it did. -- Why would doing ATU TUNE [on K3 feeding the amp] cause the KAT500 to do anything? I've checked all the K's, P's, T's, and A's in the above and I'm convinced I got them all right. You have to read carefully. :-)) I haven't figured out how to repeat the issue since I don't know how to get the KAT3 back to whatever it was doing in BYPASS when this all started. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct
[Elecraft] KXBC Clock
Today at the end of the ARRL 10 meter contest, the real time clock in the KX3 rolled over from 23:59:59 to 24:00:00 and kept going. I turned off the radio and it came back up at 00:02:xx ??? 73 - Jim K8MR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA 100 L16 and RFC1
Hi, Ray ... the top picture in my construction blog posting on building the KPA 100 (you can find it at http://build-k2.blogspot.com/2011/01/kpa100-completed.html) may be of some help. You can see that neither L16 nor RFC1 line up with the silk screen particularly well, but the leads lined up OK and I was able to secure the two parts to the board ... neither of them ended up flopping around, and no additional glue material was needed. Cheers - Bruce K1FFX - Bruce Rosen K1FFX K2/100 6982 KSB2 -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA-100-L16-and-RFC1-tp7566970p7566980.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KXBC Clock
That's gotta be the wierdest rubber clocking I've ever heard of in 44+ years of ham radio. :-) Just don't tell the contest committee! From: jimk...@aol.com jimk...@aol.com To: elecraft@mailman.qth.net Sent: Sunday, December 9, 2012 7:28 PM Subject: [Elecraft] KXBC Clock Today at the end of the ARRL 10 meter contest, the real time clock in the KX3 rolled over from 23:59:59 to 24:00:00 and kept going. I turned off the radio and it came back up at 00:02:xx ??? 73 - Jim K8MR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KPA500 FAN NOISE
WELL, I SOLVED THE FAN NOISE ON MY KPA500. HAVING HAD SOLID STATE AMPS IN THE PAST I LIKE TO RUN THE FAN AT THE LOW NUMBER ONE SPEED. I'VE BEEN BUGGED ABOUT SOME FAN NOISE WHICH I'M SURE WOULDN'T BOTHER OTHERS BUT DID ME. I WENT TO RADIO SHACK AND GOT A PACK OF GROMMETS. I USED THE SMALL 5/16 GROMMETS IN THE FAN HOLES WHICH FIT NICELY AND USED ANOTHER ONE BETWEEN THE FAN AND THE AMPLIFIER CASE. I TOOK OUT THE SPACERS AND THAT DID IT. IT IS AS SILENT AS IT CAN BE AND NO MORE MILD METALLIC WHINE. I'M HAPPY. IF YOU ARE BOTHERED BY THE NOISE GIVE THIS A TRY. 73, STEVE w0sz __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KXBC Clock
It's 26 O'clock and all is well. On 12/9/2012 6:25 PM, Bayard Coolidge wrote: That's gotta be the wierdest rubber clocking I've ever heard of in 44+ years of ham radio. :-) Just don't tell the contest committee! From: jimk...@aol.com jimk...@aol.com To: elecraft@mailman.qth.net Sent: Sunday, December 9, 2012 7:28 PM Subject: [Elecraft] KXBC Clock Today at the end of the ARRL 10 meter contest, the real time clock in the KX3 rolled over from 23:59:59 to 24:00:00 and kept going. I turned off the radio and it came back up at 00:02:xx ??? 73 - Jim K8MR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3/100 for sale
Need to sell my K3/100, serial number 6383, purchased kit in 3/2012 - has the ATU kit installed, 440hz 8-pole filter, 2.1 kHz 8-pole roofing filter, and I also have the universal Serial Bus Adapter cable. New this cost over $2600. It is in perfect condition, with no marks of any kind - non-smoker, only has maybe 50 hours on it? I have way too many hobbies and am not getting any younger - the radio is not getting the use that it should havesad, but true Will sell for $2500 (firm) and will include shipping, US only. I also have a Samlex SEC 1223, 23A power supply with power cable for this radio that I will include for another $90. Contact me at simonsenr...@yahoo.com -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-100-for-sale-tp7566985.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KAT 500 dissatisfaction
No it is not with the KAT500, it is with the 8 other outboard tuners I have. My KAT500 is not radio controlled but is just connected with RF in and RF out. The auto mode works flawlessly. Speake a couple of words and it is tuned. I wish I could say that about the others. Most of my antennas are resonate except for some phased verticals. The KAT500 tunes these with no problems. My expensive step motor tuner will also tune the verticals, but it takes forever. The other ones forget it. Ok, my K3s are great and my KX3 is unique, but in my opinion the KAT500 tops all Elecraft products. George, W6GF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KAT 500 dissatisfaction [irony alert!]
Thanks for the report, George. I made a minor, blood-pressure-reducing change to the subject line ;) 73, Wayne N6KR On Dec 9, 2012, at 9:22 PM, george fritkin wrote: No it is not with the KAT500, it is with the 8 other outboard tuners I have. My KAT500 is not radio controlled but is just connected with RF in and RF out. The auto mode works flawlessly. Speake a couple of words and it is tuned. I wish I could say that about the others. Most of my antennas are resonate except for some phased verticals. The KAT500 tunes these with no problems. My expensive step motor tuner will also tune the verticals, but it takes forever. The other ones forget it. Ok, my K3s are great and my KX3 is unique, but in my opinion the KAT500 tops all Elecraft products. George, W6GF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
