[Elecraft] TX Gain Calibration
Good morning, I have just done a TX Gain Cal on my K3 and 160m came up short (4 watts). 1. Is this something I can fix or does it need to go to the Mother ship? 2. If it is not corrected, what are the ramifications of not having it done? 3. If it can be fixed by me, what is involved? Best regards, Jerry, W1IE __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] TX Gain calibration fails
Hi Joachim , How are you adjusting the power in each of the three power settings. Do you have the coax and dummy load connected directly to the K3? Trade out the short jumper to the dummy load to assure yourself it is good. After that, I would measure power with an external calibrated wattmeter. The K3 utility is obviously not seeing the power it is looking for, low by .5 to 12 watts depending on the power setting. 73, Bill-AK5X > On Dec 30, 2021, at 11:53 AM, wrote: > > Hi, > > I tried to go through TX Gain calibration on my K3 (after VCO MD cal), but > it fails (see below). Does anyone have an idea what to do in this case? > > 73, Joachim DL7JP > > --- > > Elecraft K3 Utility Revision 1.15.8.18 > OS Version 6.2 Build 9200 Windows 8 > K3 MCU revision 05.67. RS-232 speed 38400 bit/s. > Starting 5 watt calibration > Calibrating at 1.900 MHz > Calibrating at 3.750 MHz > Calibrating at 5.336 MHz > Calibrating at 7.150 MHz > Calibrating at 10.125 MHz > Calibrating at 14.200 MHz > Calibrating at 18.110 MHz > Calibrating at 21.200 MHz > Calibrating at 24.930 MHz > Calibration power settled at " 4.5 W ;" > Tx Gain calibration failed because transmit power did not reach the expected > value > 5 watt calibration failed > Elapsed time: 47 seconds > > Elecraft K3 Utility Revision 1.15.8.18 > OS Version 6.2 Build 9200 Windows 8 > K3 MCU revision 05.67. RS-232 speed 38400 bit/s. > Starting 50 watt calibration > Calibrating at 1.900 MHz > Calibrating at 3.750 MHz > Calibrating at 5.336 MHz > Calibrating at 7.150 MHz > Calibrating at 10.125 MHz > Calibrating at 14.200 MHz > Calibrating at 18.110 MHz > Calibrating at 21.200 MHz > Calibrating at 24.930 MHz > Calibrating at 29.000 MHz > Calibrating at 52.000 MHz > Calibration power settled at " 38 W ;" > Tx Gain calibration failed because transmit power did not reach the expected > value > 50 watt calibration failed > Elapsed time: 49 seconds > > K3 Tx Gain Calibration data written on 2021-12-30 at 18:45:57 > K3 Serial Number 07445 > K3 MCU revision 05.67. RS-232 speed 38400 bit/s. > Elecraft K3 Utility Revision 1.15.8.18 > 1900 kHz TxGain LP 64 > 3750 kHz TxGain LP 19 > 5336 kHz TxGain LP 35 > 7150 kHz TxGain LP 54 > 10125 kHz TxGain LP 56 > 14200 kHz TxGain LP 12 > 18110 kHz TxGain LP 23 > 21200 kHz TxGain LP 42 > 1900 kHz TxGain HP 25 > 3750 kHz TxGain HP 32 > 5336 kHz TxGain HP 40 > 7150 kHz TxGain HP 33 > 10125 kHz TxGain HP 27 > 14200 kHz TxGain HP 12 > 18110 kHz TxGain HP 10 > 21200 kHz TxGain HP 06 > 24930 kHz TxGain HP 08 > 29000 kHz TxGain HP 04 > > __ > 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 > Message delivered to a...@me.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 Message delivered to arch...@mail-archive.com
[Elecraft] TX Gain calibration fails
Hi, I tried to go through TX Gain calibration on my K3 (after VCO MD cal), but it fails (see below). Does anyone have an idea what to do in this case? 73, Joachim DL7JP --- Elecraft K3 Utility Revision 1.15.8.18 OS Version 6.2 Build 9200 Windows 8 K3 MCU revision 05.67. RS-232 speed 38400 bit/s. Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz Calibrating at 5.336 MHz Calibrating at 7.150 MHz Calibrating at 10.125 MHz Calibrating at 14.200 MHz Calibrating at 18.110 MHz Calibrating at 21.200 MHz Calibrating at 24.930 MHz Calibration power settled at " 4.5 W ;" Tx Gain calibration failed because transmit power did not reach the expected value 5 watt calibration failed Elapsed time: 47 seconds Elecraft K3 Utility Revision 1.15.8.18 OS Version 6.2 Build 9200 Windows 8 K3 MCU revision 05.67. RS-232 speed 38400 bit/s. Starting 50 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz Calibrating at 5.336 MHz Calibrating at 7.150 MHz Calibrating at 10.125 MHz Calibrating at 14.200 MHz Calibrating at 18.110 MHz Calibrating at 21.200 MHz Calibrating at 24.930 MHz Calibrating at 29.000 MHz Calibrating at 52.000 MHz Calibration power settled at " 38 W ;" Tx Gain calibration failed because transmit power did not reach the expected value 50 watt calibration failed Elapsed time: 49 seconds K3 Tx Gain Calibration data written on 2021-12-30 at 18:45:57 K3 Serial Number 07445 K3 MCU revision 05.67. RS-232 speed 38400 bit/s. Elecraft K3 Utility Revision 1.15.8.18 1900 kHz TxGain LP 64 3750 kHz TxGain LP 19 5336 kHz TxGain LP 35 7150 kHz TxGain LP 54 10125 kHz TxGain LP 56 14200 kHz TxGain LP 12 18110 kHz TxGain LP 23 21200 kHz TxGain LP 42 1900 kHz TxGain HP 25 3750 kHz TxGain HP 32 5336 kHz TxGain HP 40 7150 kHz TxGain HP 33 10125 kHz TxGain HP 27 14200 kHz TxGain HP 12 18110 kHz TxGain HP 10 21200 kHz TxGain HP 06 24930 kHz TxGain HP 08 29000 kHz TxGain HP 04 __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] TX Gain Calibration Fails on 6 meters
Hello, K3S. S/N 11532 K3 Utility running on Mac OS 10.14.6 Mojave I found that running Transmitter Gain utility requires these settings within K3S Config menu to enable test to pass (with good 50 Ohm load on both ANT1 and XVTR-Out ports): Transmitter Gain tests: 5W test. requires Config - XVTR - OFF 50W test requires Config - XVTR - OFF mW test requires Config - XVTR - ON. I suppose this makes sense (turn the transporter on for the mW test which is used to drive the Transverter). 73, Dave KJ9I -- Sent from: http://elecraft.365791.n2.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] TX Gain Calibration Fails on 6 meters
How are you doing the calibration - manual or computer? If computer, PC or Mac? Make sure you have the latest K3 Utility to do this. Recent versions of the K3 Utility had an issue with handling responses from the K3/K3S that caused calibration to fail. I believe they were fixed on the Windows version, but I don’t think that has been taken care of on the Mac yet. I will have to check to make sure. Repeating the process is worth while. My own experience is that it will eventually complete. 73! Jack, W6FB > On Mar 12, 2019, at 10:04 PM, Frank via Elecraft > wrote: > > I purchased Elecraft K3S S/N 11672 in August 2018. The build was completed > in November 2018. At that time all the tests and calibrations were completed > successfully. > > Now the TX Gain Calibration fails on Low Power and High Power on 50 MHz. > only. > > Page 67 of Elecraft K3S owners manual TXGN Description states LP 0-12W and > HP 13-120W. > > On 160-10 meters I hear the relay switch from LP to HP amplifier when the > power adjustment is increased from 12 to 13W as described. > > On 6 meters the relay switches from LP to HP amplifier when the power is > adjusted from 8 to 9W. > > The error message states “TX Calibration failed because Transmit Power did > not reach the expected value.” > > The TX calibration is performed per the instructions into a proper 50 ohm > dummy load. > > I submitted this to Elecraft Support last week but have not received a > response, so I thought I would ask the group for ideas. > > Thanks in advance. > > Frank > K6FW > __ > 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] TX Gain Calibration Fails on 6 meters
My K3S s/n 10163 I find my results are the same as yours as below. "On 6 meters the relay switches from LP to HP amplifier when the power is adjusted from 8 to 9W." "On 160-10 meters I hear the relay switch from LP to HP amplifier when the power adjustment is increased from 12 to 13W as described." Also noted with TUNE power set to 20 watts, all bands 160M - 10M operate normally at 20 watts displayed and measured. However on 6M when TUNE is activated the displayed power is 16 watts and the measured power is 16 watts. When PWR is set to 20 watts, the measured output is 16 watts. However, If I set the PWR to 100 watts the measured power is 100 watts. On 6M if I set TUNE Pwr to 25 watts, when Tune is activated it displays 21 watts and output is 21 watts. Clearly there seems to be an issue in firmware for 6M only. I recall sending the concern to Elecraft. At the same time, I don't consider it to be a major issue. 73 Bob, K4TAX __ 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] TX Gain Calibration Fails on 6 meters
I had the 50 MHz gain cal fail with the initial build of my K3s. Don't remember which power. I repeated the cal several times and one time it passed. I left it there. Not anxious to try it again. Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net on behalf of Frank via Elecraft Sent: Wednesday, March 13, 2019 12:04 AM To: elecraft@mailman.qth.net Subject: [Elecraft] TX Gain Calibration Fails on 6 meters I purchased Elecraft K3S S/N 11672 in August 2018. The build was completed in November 2018. At that time all the tests and calibrations were completed successfully. Now the TX Gain Calibration fails on Low Power and High Power on 50 MHz. only. Page 67 of Elecraft K3S owners manual TXGN Description states LP 0-12W and HP 13-120W. On 160-10 meters I hear the relay switch from LP to HP amplifier when the power adjustment is increased from 12 to 13W as described. On 6 meters the relay switches from LP to HP amplifier when the power is adjusted from 8 to 9W. The error message states “TX Calibration failed because Transmit Power did not reach the expected value.” The TX calibration is performed per the instructions into a proper 50 ohm dummy load. I submitted this to Elecraft Support last week but have not received a response, so I thought I would ask the group for ideas. Thanks in advance. Frank K6FW __ 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] TX Gain Calibration Fails on 6 meters
I purchased Elecraft K3S S/N 11672 in August 2018. The build was completed in November 2018. At that time all the tests and calibrations were completed successfully. Now the TX Gain Calibration fails on Low Power and High Power on 50 MHz. only. Page 67 of Elecraft K3S owners manual TXGN Description states LP 0-12W and HP 13-120W. On 160-10 meters I hear the relay switch from LP to HP amplifier when the power adjustment is increased from 12 to 13W as described. On 6 meters the relay switches from LP to HP amplifier when the power is adjusted from 8 to 9W. The error message states “TX Calibration failed because Transmit Power did not reach the expected value.” The TX calibration is performed per the instructions into a proper 50 ohm dummy load. I submitted this to Elecraft Support last week but have not received a response, so I thought I would ask the group for ideas. Thanks in advance. Frank K6FW __ 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] TX gain Calibration
I am trying to do the tx gain calibration. I am hooked into a 300w dummy dry dummy load. When I run the test it dies on the 17m band and says: Tx Gain calibration failed because power readings did not converge to a consistent value I really have no idea what this means, and I can't find any info on it anywhere. __ 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] TX Gain Calibration Error?
Hi everyone, I am attempting to do a TX Gain Calibration and every time that I have attempted it so far, I get the following response from the K3 Utility. Starting 5 watt calibration Calibrating at 1.900 MHz Calibration power settled at 13.5 V ; Elapsed time: 12 seconds Tx Gain calibration failed because transmit power did not reach the expected value 5 watt calibration failed I get the same error if I bypass the 5 watt test and go straight to the 50Watt test. I have tried it with the radio running on a battery and with a regulated power supply. I am using the latest version of the K3 utility. Any idea's? Jeff Cochrane VK4BOF East Innisfail QLD Australia __ 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] TX Gain Calibration Error?
Problem Solved! I had to do a hard reset of the K3. (Power on whilst holding the NORMAL button) and then reloaded my saved configuration. I was then able to go through the whole TX Gain calibration procedure. Ain't it marvelous what you can do when you read a book! :) Jeff Cochrane - VK4BOF Jeff Cochrane - VK4BOF wrote: Hi everyone, I am attempting to do a TX Gain Calibration and every time that I have attempted it so far, I get the following response from the K3 Utility. Starting 5 watt calibration Calibrating at 1.900 MHz Calibration power settled at 13.5 V ; Elapsed time: 12 seconds Tx Gain calibration failed because transmit power did not reach the expected value 5 watt calibration failed I get the same error if I bypass the 5 watt test and go straight to the 50Watt test. I have tried it with the radio running on a battery and with a regulated power supply. I am using the latest version of the K3 utility. Any idea's? Jeff Cochrane VK4BOF East Innisfail QLD Australia __ 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 -- View this message in context: http://elecraft.365791.n2.nabble.com/TX-Gain-Calibration-Error-tp5549584p5549702.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] TX Gain Calibration Error?
I've not seen this, but your VFO B area is probably showing power supply voltage when a power level is expected. Can you save your configuration with the K3 Utility, then perform parameter initialization (EE INIT) then restore configuration? EE INIT is described in the K3 Owners manual. Dick, K6KR Sent from my iPhone On Sep 20, 2010, at 1:50 AM, Jeff Cochrane - VK4BOF vk4bof.elecr...@gmail.com wrote: Hi everyone, I am attempting to do a TX Gain Calibration and every time that I have attempted it so far, I get the following response from the K3 Utility. Starting 5 watt calibration Calibrating at 1.900 MHz Calibration power settled at 13.5 V ; Elapsed time: 12 seconds Tx Gain calibration failed because transmit power did not reach the expected value 5 watt calibration failed I get the same error if I bypass the 5 watt test and go straight to the 50Watt test. I have tried it with the radio running on a battery and with a regulated power supply. I am using the latest version of the K3 utility. Any idea's? Jeff Cochrane VK4BOF East Innisfail QLD Australia __ 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] TX Gain Calibration Error?
Thanks Dick, Thats exactly what I did do, EE INIT followed by restoring my configuration. All seems to be fine now. Jeff Cochrane - VK4BOF Innisfail, QLD, Australia Elecraft K3# 4257 - Original Message - From: Dick Dievendorff To: Jeff Cochrane - VK4BOF Cc: elecraft@mailman.qth.net Sent: Monday, September 20, 2010 7:42 PM Subject: Re: [Elecraft] TX Gain Calibration Error? I've not seen this, but your VFO B area is probably showing power supply voltage when a power level is expected. Can you save your configuration with the K3 Utility, then perform parameter initialization (EE INIT) then restore configuration? EE INIT is described in the K3 Owners manual. Dick, K6KR Sent from my iPhone On Sep 20, 2010, at 1:50 AM, Jeff Cochrane - VK4BOF vk4bof.elecr...@gmail.com wrote: Hi everyone, I am attempting to do a TX Gain Calibration and every time that I have attempted it so far, I get the following response from the K3 Utility. Starting 5 watt calibration Calibrating at 1.900 MHz Calibration power settled at 13.5 V ; Elapsed time: 12 seconds Tx Gain calibration failed because transmit power did not reach the expected value 5 watt calibration failed I get the same error if I bypass the 5 watt test and go straight to the 50Watt test. I have tried it with the radio running on a battery and with a regulated power supply. I am using the latest version of the K3 utility. Any idea's? Jeff Cochrane VK4BOF East Innisfail QLD Australia __ 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] tx gain calibration
Must I do this for each antenna port? __ 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] tx gain calibration
No you're just able to have the dummy load on either port when you do so. ~Brett (N7MG) On Fri, 2010-06-18 at 20:35 -0400, Gary Lee wrote: Must I do this for each antenna port? __ 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] tx gain calibration
No. Just one time on one of the antenna ports into a dummy load. 73, Eric On 6/18/2010 5:35 PM, Gary Lee wrote: Must I do this for each antenna port? __ 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
