Dear Elecrafters, I do appreciate the help from Elecraft support, senior supporter Gary and Wayne himself. After quite a few mails back and forth Wayne did the mail with
"Have you tried setting the K3’s transmit ALC off? If there really is per-mode behavior, this should help. First do a TUNE to establish ALC control level, then set CONFIG:TX ALC to OFF. Exit the menu. Now power control is open-loop; you can still adjust the PWR control, but it is only adjusting drive, without using ALC." Vy 73 de OZ1CCM, Kjeld -----Original Message----- From: Kjeld Holm [mailto:[email protected]] Sent: 25. februar 2018 17:14 To: '[email protected]' Cc: 'Wayne Burdick' Subject: K144XV on digital modes - disappearing power Dear Elecrafters, For a year or so I have had an internal K144XV transverter for 144 MHz in my K3. I have not been using it very much – just a few FM QSOs. I have not seen any problems. Now I have just started using K144XV on digital modes – especially FT8 (42% TX and 58% RX). I started out selecting 10W output. After 4 minutes the output suddenly felt to a few mill watt. Starting out with 5W or even 2W produced exactly the same result. But without regard to the starting point I could get normal output again just by changing the output a little bit. It did not matter whether I increased or decreased my power a bit. I did not hear any fans starting up and I could not feel any heating at any sides of the K3. Can anyone explain what is going on – what I am doing wrong – what I can do to keep the output stable? Vy 73 de OZ1CCM, Kjeld ______________________________________________________________ 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]
