Re: [Elecraft] KX3 Gain Calibration - Failing
Aaron . . . In addition to what Don says, I'd recommend setting the KX3's POWER control to the maximum before running the TX GAIN procedure. I've had it fail when I had the output set at 5 watts. Running it to maximum would then result in a successful calibration. By the way, I always do a TX GAIN calibration after each firmware upgrade, although I'm not sure it's necessary. 73, Kent K9ZTV On 1/2/2017 1:37 PM, Don Wilhelm wrote: Aaron, The most common reason for a failure in the KX3 TX Gain Calibration is a dummy load that does not present a good 50 ohm non-reactive load. You can check your dummy load at 28 or 50 MHz with an antenna analyzer. You apparently did not disconnect the KXPA100 when running the KX3 TX Gain Cal procedure. Remove the KXPA100 and run with the KX3 and the dummy load only. If you do the manual procedure in the KX3 manual, it should be good for all bands where it passed. If you used KX3 Utility, it quits on the first band that produces an error. After you get a successful TX Gain Calibration with the KX3 only, then do the TX Gain Cal for the KXPA100 as indicated in Appendix B of the KXPA100 manual. Your dummy load must be rated for 75 watts or greater. 73, Don W3FPR On 1/2/2017 1:52 PM, Aaron Marroquin wrote: I have been a lurker on the reflector for almost a year and this is my first email to request guidance. I have a KX3 and a KXPA100 and with the recent thread about running a calibration I figured I needed to do likewise. The amp is a new addition to my setup so I am still learning the details. Anyway, while running the KX3 Utility I get a failure during the calibration process (the output is below). The amp is in bypass mode and I am using an MFJ-260C for the dummy load attached to ANT1. __ 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 k9...@socket.net - No virus found in this message. Checked by AVG - www.avg.com Version: 2016.0.7996 / Virus Database: 4749/13692 - Release Date: 01/02/17 __ 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] KX3 Gain Calibration - Failing
Aaron, The most common reason for a failure in the KX3 TX Gain Calibration is a dummy load that does not present a good 50 ohm non-reactive load. You can check your dummy load at 28 or 50 MHz with an antenna analyzer. You apparently did not disconnect the KXPA100 when running the KX3 TX Gain Cal procedure. Remove the KXPA100 and run with the KX3 and the dummy load only. If you do the manual procedure in the KX3 manual, it should be good for all bands where it passed. If you used KX3 Utility, it quits on the first band that produces an error. After you get a successful TX Gain Calibration with the KX3 only, then do the TX Gain Cal for the KXPA100 as indicated in Appendix B of the KXPA100 manual. Your dummy load must be rated for 75 watts or greater. 73, Don W3FPR On 1/2/2017 1:52 PM, Aaron Marroquin wrote: I have been a lurker on the reflector for almost a year and this is my first email to request guidance. I have a KX3 and a KXPA100 and with the recent thread about running a calibration I figured I needed to do likewise. The amp is a new addition to my setup so I am still learning the details. Anyway, while running the KX3 Utility I get a failure during the calibration process (the output is below). The amp is in bypass mode and I am using an MFJ-260C for the dummy load attached to ANT1. __ 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] KX3 Gain Calibration - Failing
I have been a lurker on the reflector for almost a year and this is my first email to request guidance. I have a KX3 and a KXPA100 and with the recent thread about running a calibration I figured I needed to do likewise. The amp is a new addition to my setup so I am still learning the details. Anyway, while running the KX3 Utility I get a failure during the calibration process (the output is below). The amp is in bypass mode and I am using an MFJ-260C for the dummy load attached to ANT1. Is the failure only on 29.000Mhz or does the whole process fail if any of the calibrations fail? Anyway to continue? Also, could the temperature of the dummy load impact the test, that is if I run the test back to back several times, as the dummy load heats up will this impact the process (I am thinking yes)? Should I cool the dummy load before testing? Thank you in advance. Aaron KK6ZDB /KX3 Utility Output Below\ Elecraft KX3 Utility Revision 1.16.2.12 OS Version 10.0 Build 14393 KX3 MCU revision 02.38. RS-232 speed 38400 bit/s 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 Power did not settle Sample values: 5.9 W ; 5.9 W ; 6.0 W ; 5.9 W ; Elapsed time: 93 seconds Tx Gain calibration failed because power readings did not converge to a consistent value Calibration failed Elapsed time: 93 seconds -- Thank you, Aaron M. Marroquin (707) 540-4446 __ 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
