How do you unsubscribe!!!!???? On Tue, Aug 29, 2023, 13:59 <ken.k...@gmail.com> wrote:
> Hi all. I recently put a remote antenna switch in my HF system. This > switch (a WA4MCM kit, RAAS-4a) is capable of reading band data from several > radios, including my Elecraft K3S. For several years I have had a KPA-500 > amplifier in line, working seamlessly with my K3S, band switching > automatically, etc. In order to get band data for the new switch, I > installed the "Y" cable that came with the KPAK3AUX Cable set that I > purchased with the amp. After installing the new switch, everything works > fine, with a couple of small "quirky" things. For the past year or so, I > have had my amp set to automatically go into stand-by when I switch bands. > After installing the new switch, I noticed that when changing bands, the > amp > no longer automatically goes to stand-by. Furthermore, after making a band > change and transmitting for the first time on the new band (with the amp in > "operate" mode), the amp will drop out of "operate" shortly after keying > up. > No error message or error beep happens, it just drops out. After manually > putting the amp back in "operate" mode, everything was fine. After I > noticed that, I just disabled the automatic switch to stand-by feature of > the KPA-500, and that took care of that. Another interesting, and possibly > more significant, anomaly I noticed after installing the new switch is > according to the display on the amplifier, the amplifier is always on the > 60 > meter band, displaying "5.3 MHZ". I normally only display the temperature > of the amplifier, but my son noticed this when he was operating from my > station and changed the display. When he noticed this, we were operating a > special event station and had operated on most bands other than 60 meters > for quite some time with the amp apparently set for 60 meters, with no > obvious ill effects. > > > > The designer of the switch says that each band data channel only draws > around 4 mA, with each channel buffered by a transistor switch in an > attempt > to isolate the band data voltage from the radio. In my working days in the > entertainment industry, I would use a distribution amp to give me multiple > audio outputs when needed. Is there such a "distribution amp" available > for > the band data signals? Would the Elecraft KRC2 accomplish this? > > > > I appreciate any input offered on my situation. > > > > 73, > > Ken, KJ9B > > ______________________________________________________________ > 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 > Message delivered to emtstevenay...@gmail.com > ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
