David, I’m glad you got it resolved.
Myron WV0H Printed on Recycled Data From: David Davis Sent: Wednesday, June 8, 2016 8:58 PM To: thelastdb; [email protected] Subject: Re: [Elecraft] KX3 RF out voltage measurements... Myron, Thank you very much for the information. It helped me check the RF output on my KX3. I was able to determine that the power output is exactly where it should be. That is why I really enjoy this mailing list. There are good people here that always offer great help. In the end the issue appears to be caused by the ribbon cable that connects the two halves of the radio. I had opened the radio a few days before the last time I had used it. I must have knocked the cable loose. While I was checking the radio I checked the connections of the cable and it was loose. After I got the radio back together I used your suggestions and the measurements were perfect. I also Googled your website. It was like finding a gold mine. There is all kinds of good information on your site. Thank you, David KG6MTI On 6/8/16 6:02 AM, thelastdb wrote: David, Set the radio for 5W in the TUNE menu first. Then press the tune button. I make all of my power measurements with my KX3 set to 5W and TUNE. John and I use these DL1s extensively. Google KN5L DL1 and read up on the diode characterization and further reading about its use. 72 Myron WVØH Printed on Recycled Data -------- Original message -------- From: David Davis <[email protected]> Date: 6/7/2016 10:49 PM (GMT-07:00) To: [email protected] Subject: [Elecraft] KX3 RF out voltage measurements... I might have an RF out issue with my KX3 but I am not sure how to test it. I have an Elecraft DL1 and a DMM that I figure I can use to check the RF voltages and verify the power out. However, I am not sure of the exact process on how to do this. If I am keying the mic on SSB do I need to speak into the mic to be able to measure the voltages or just key the mic with silence? I would assume I need to be speaking into the mic. The reason I ask this is because if I just key the mic with silence and the radio set for 10W with a input power supply of 13.5V DC I measure 4.7mv DC at the TP1 on the DL1 unit. If I speak into the mic I see voltages from 11 - 18V DC from the TP1 on the DL1 unit. It seems to me that I need to be speaking into the mic. I figure if I was checking the RF out in CW mode I would need to key the keyer in some fashion. I know this seems like an elementary level question but I would really like to verify the RF power out. Any information is greatly appreciated in advance. Thanks! David KG6MTI ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
