Walter. While I suspect that voltage requirements for the KX3 are similar to those of the KX2, its a KX2 as the device in question.
And I agree with Don. The underlying issue here is why is the power supply voltage so low? The KX2 (or KX3) shouldn’t draw more than around three Amps under full TX power. Sent from my iPhone ...nr4c. bill > On Mar 18, 2019, at 5:00 PM, Walter Underwood <[email protected]> wrote: > > Based on the KX3 specifications, it is designed to run at lower power for > full-carrier modes. > > From the transmitter specifications on page 54 of the KX3 Owner’s Manual: > > "5 W or less recommended for high-duty-cycle modes (FM, AM, DATA). Power will > automatically be reduced if PA temperature or current limits are exceeded.” > > I’d check the KX2 specs for info on that model. > > wunder > K6WRU > Walter Underwood > CM87wj > http://observer.wunderwood.org/ (my blog) > >> On Mar 18, 2019, at 1:55 PM, Bill Frantz <[email protected]> wrote: >> >> Based on a presentation by Eric at the West Valley Amateur Radio >> Association, Elecraft tends to build their equipment to run at full >> advertised power with digital modes. Their model is a RTTY contester calling >> CQ with 60% to 70% of the time transmitting. He indicated that the KPA1500 >> would run for 5 minutes at full output before needing a rest. >> >> I have not had any problems running my K3 at 100W with FT8. Interestingly, >> the fans speed up during the receive part of the cycle. >> >> 73 Bill AE6JV >> >>> On 3/18/19 at 1:39 PM, [email protected] (Richard Corfield) wrote: >>> >>> Don't Elecraft recommend using lower power for high duty digital modes? >>> (Though FT8 us 15s bursts so not as high duty as some). >> >> ------------------------------------------------------------------------------------- >> Bill Frantz | Government is not reason, it is not eloquence, it is >> force; like >> 408-356-8506 | a fire, a troublesome servant and a fearful master. >> Never for a >> www.pwpconsult.com | moment should it be left to irresponsible action. Geo >> Washington >> >> ______________________________________________________________ >> 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 > > ______________________________________________________________ > 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 ______________________________________________________________ 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
