I have the same problem on LSB 40 meters. Oms PY5EG -----Original Message-----
From: Alexandr Kobranov <[EMAIL PROTECTED]> Subj: Re: [Elecraft] K3 - Strange problem on 10 Meter SSB with power out Date: Mon 4 Aug 2008 14:42 Size: 3K To: WA6L <[EMAIL PROTECTED]> cc: elecraft@mailman.qth.net Hi John, can you - and the rest of suffering by this problem - put here some more details about your setting: - POWER per Band active? - TUN PWR -nor- or any value defined? Just to have complete picture. Did you try to chenge some settings with some change in behaviour? Thnaks, Lexa, OK1DST WA6L napsal(a): > > I have been having a similar problem on 30m through 160m. Output is fine on > CW on all bands. On SSB, I am gettting only about 50 watts on those low > bands. > > It appears to be hardware related, at least in my case. I have been doing a > lot of remote troubleshooting with Gary Surrency, and at this point and > awaiting my RSA for repair service. > > 73, > > John, WA6L > > > williamsonr 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 stati >> 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: Elecraft@mailman.qth.net >> 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: Elecraft@mailman.qth.net 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 --- message truncated --- _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
