I am wondering if anyone knows how the KXPA500 signals its state to the K3. What cable is used to interconnect the two? There might already be a GPIO on the extension connector that enables the alternative power settings on the K3 on a per band basis.
Any info? Of course if there isn't wouldn't it be great if Wayne could add it :) 73, Thomas M0TRN On 29 August 2012 01:52, Vic K2VCO <[email protected]> wrote: > I also have suggested this. I wrote a macro which toggles the DIGOUT1 line > which I use to > enable/disable my 'dumb' amplifier. The macro also switches between 100w > and 65w, which is > more or less what I use to drive the amplifier. But I would really like to > have access to > the per-band settings used for the KPA500. > > This feature is only available if you have a KPA500 now, but it shouldn't > be hard to make > it accessible to everyone. > > On 8/28/2012 4:41 PM, Thomas Horsten wrote: > > Hi all, > > > > I know that the K3 can remember a separate power level for transmitting > > with an intelligent external amplifier like the KPA500, but I have an old > > boat-anchor amplifier which I switch in and out with a simple switch > > connected to the KEY OUT line of the K3. > > > > Sometimes I am working barefoot on the K3 with 100W and then I decide I > > need some extra power and turn on the amplifier. Then I have to turn the > > drive down on the K3 to about 40W to drive the amplifier, but sometimes I > > forget and the result is amplifier overdrive and burnt smell from the > tubes. > > > > It would be very nice if there was an input on the K3 that would switch > to > > the alternative per-band memory for drive power. It might already be > there > > and used for the KPA500, but I couldn't find it in the manual. > > > > 73, Thomas M0TRN > > > -- > Vic, K2VCO > Fresno CA > http://www.qsl.net/k2vco/ > ______________________________________________________________ > 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
