Re: [Elecraft] K3 transmitter gain calibration fails due high SWR
TX Gain CAL should be run when transmitting into a 50 ohm dummy load. Also make sure your KAT3 ATU is bypassed. 73, Eric elecraft.com On 5/23/2013 4:36 PM, peterc281 wrote: I decided to run through the calibration of my K3 after it came back from the VK9NT Dxpo. I find I can’t complete the transmit gain calibration as the SWR is to high on some bands. 1.8 to 10.1 are fine, the rest are as follows 14.1 is 1.5:1, 18.1 1.8:1, 21.1 2.7:1, 24.9 2.2:1, 28.4 2.4:1, 50.1 1.3:1. I’m after suggestions what to look for as I am not sure what could cause this problem. 73 Peter VK3IJ -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-transmitter-gain-calibration-fails-due-high-SWR-tp7574132.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] K3 transmitter gain calibration fails due high SWR
Tx gain cal should succeed as long as the SWR does not exceed 2.0:1. Can you turn on trace on the view menu and send me a trace of the failing calibration. Dick, K6KR On May 23, 2013, at 16:36, peterc281 peterc...@gmail.com wrote: I decided to run through the calibration of my K3 after it came back from the VK9NT Dxpo. I find I can’t complete the transmit gain calibration as the SWR is to high on some bands. 1.8 to 10.1 are fine, the rest are as follows 14.1 is 1.5:1, 18.1 1.8:1, 21.1 2.7:1, 24.9 2.2:1, 28.4 2.4:1, 50.1 1.3:1. I’m after suggestions what to look for as I am not sure what could cause this problem. 73 Peter VK3IJ -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-transmitter-gain-calibration-fails-due-high-SWR-tp7574132.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] K3 transmitter gain calibration fails due high SWR
Also make sure your KAT3 ATU is bypassed. Reset your ATU into a 50 Ohm load before selecting bypass. 73, ... Joe, W4TV On 5/23/2013 8:17 PM, Eric Swartz - WA6HHQ, Elecraft wrote: TX Gain CAL should be run when transmitting into a 50 ohm dummy load. Also make sure your KAT3 ATU is bypassed. 73, Eric elecraft.com On 5/23/2013 4:36 PM, peterc281 wrote: I decided to run through the calibration of my K3 after it came back from the VK9NT Dxpo. I find I can’t complete the transmit gain calibration as the SWR is to high on some bands. 1.8 to 10.1 are fine, the rest are as follows 14.1 is 1.5:1, 18.1 1.8:1, 21.1 2.7:1, 24.9 2.2:1, 28.4 2.4:1, 50.1 1.3:1. I’m after suggestions what to look for as I am not sure what could cause this problem. 73 Peter VK3IJ -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-transmitter-gain-calibration-fails-due-high-SWR-tp7574132.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 __ 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 transmitter gain calibration fails due high SWR
Murphy strikes again! I changed the cable and used a 50 ohm load and all good, looks like the cable was duff!! Cheers Peter 3IJ -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-transmitter-gain-calibration-fails-due-high-SWR-tp7574132p7574141.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
