For problem 2, it sounds like you are providing insufficient drive to the K3, and this causes "power creep" as the K3 tries to compensate.
What does your ALC meter read? It should have 4 steady bars with the fifth bar flickering. Then, you can set the desired output power level with the power level control. 73, Matt VK2ACL On 02/10/2012, at 5:09 AM, "Joe K2UF" <j...@k2uf.com> wrote: > I had the following two problems during the RTTY contest this past weekend. > > > > 1.- I had to reset the mode from FSK D to AFSK A many times. Usually when > I changed bands or a large change in frequency within the same band. When I > get to the top of the band and want to go back to the bottom of the band I > would type the frequency in N1MM. Radio would QSY to the new frequency but > the mode would revert back to FSK D. This would not happen every time but > quite often. > > > > 2.- Using the K3 / KPA500 setup with N1MM running on a Win XP desktop pc > with a soundMAX sound card. The K3 running about 25 watts and the LINE IN > level set at 10 the KPA500 power out would start at about 60 to 70 watts. > Each time I would call/work someone the power out on the KPA500 would > increase. After 8 or 10 calls/Qs the power would be up to 400 to 500 watts. > If I changed the power level on the K3 down 1 watt and then back up 1 watt > the process would start all over again. I do not have the same problem on > CW. I have not used the amp in a CW contest yet, but I have worked several > DXpeditions/DX stations sometimes calling for over an hour. The amp output > would stay where it was set. > > > > I have looked over the K3 manual and could not find any hints about problem > 1. Problem 2 is a real puzzler. > > > > Anyone have any ideas? > > > > Thanks Joe K2UF > > > > > > > > No trees were harmed in the sending of this e-mail; however, many electrons > were inconvenienced. > > > > ______________________________________________________________ > 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
