I saw the same thing too. The problem seemed to be on the other bands also. I got about 70w out but had to turn the mic gain all the way up. This isnt right to have to hit it this hard to get output. I had a local listen to the signal and until the mic gain was all the way he didnt think I sounded "normal" on the audio.
TX VCE was turned up to 2 and then 3 without any difference. Mike/aj9c ---- [EMAIL PROTECTED] wrote: > If this has previously been discussed - please forgive me. > This weekend ten meters was "open" (as much as it could be at the bottom of a > cycle) and the 10-10 contest gave me a great opportunity to try out the 10 > meter band on my recently completed K3 #1318(latest firmware). All seemed > well until I noticed that my power output on SSB was down as indicated on the > K3 power meter and where I normally see 100 watt pep output on my tuners > average reading meter. So I grabbed my Bird 43 (with PEP option) and a dummy > load. Sure enough, only about 50 watts PEP even though the control on the K3 > is at 100? Placed the K3 into tune and 95-100 watts out? Go back to SSB and > now the PEP power is back where it should be at approx 100 watts PEP. After > a few more SSB transmission - low power again(still connected to the Bird and > dummy load). This went on for a while as I checked and re-checked all of my > mic and comp settings. All other bands worked correctly. Power supply not > current limiting, all connections/cables good (connection to my sta ti > o! > ! > n ground verified), fresh battery in my studio mic, SWR on ten meter antenna > below 1.4:1 etc. etc. Took the LPA heat sink bottom cover off to make sure > the LPA transistors were making good thermal contact. (I had added a spot of > heat sink compound to each transistor during my assy process) There was a > clear outline of the TO-220 transistor and an even film of compound > indicating good pressure and contact. Put everything back together. Haven't > seen the issue again - yet? But I am not convinced I did anything to make it > go away? > > Anyone else had this experience? > > Rodger > N4NRW > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
