Hi Tom, Have a look at the following technical bulleting from Elecraft:
http://www.elecraft.com/K3/mods/K3%20Technical%20Alert%201.pdf Does your KPA3 have capacitor C3 installed? If so, that may be your problem. 73 de James K2QI On Mon, Nov 15, 2010 at 9:50 PM, K5RC <[email protected]> wrote: > I got a number of reports from SS CW of spurious signals. I have isolated > it > to one K3 (S/N 4498). With the KPA3-100 disabled (below 12 watts) the > signal > is clean. From about 13 watts to 90 watts, there are spurious signals about > every 1KHz + and - the carrier frequency. The frequency of the spurs > changes as the power control is advanced and the signal becomes clean again > at about 90W. This happens on 80, 20 and 10 (the only bands this radio has > antennas for). Also, the power output is unstable on the wattmeter and the > SWR apparently changes continually indicating a wandering spur. > > > > Any ideas? > > > > Tom Taormina, K5RC > > The Comstock Memorial Station, W7RN > > Virginia City NV > > http://k5rc.cc > > > > ______________________________________________________________ > 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 > -- 73 de James K2QI President UNARC/4U1UN ______________________________________________________________ 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
