On Thu, May 1, 2014 at 9:11 PM, Ben Collins-Sussman <suss...@red-bean.com> wrote: > Hello friends, > > I've been using my tiny KX3 with a KPA500 and KAT500 for many months now. > The KX3 only puts out 12 watts, but the KPA500 translates it successfully > into about 200W. The KPA500 and KAT500 have been connected via the > official DB15 cable sold by Elecraft, and the KX3 triggers the amp via RCA > cable into the amp's PA-key connector. > > Fast-forward to today: I just received a K3, and I'm really excited to see > the K3, KPA500, and KAT500 all just "work together" magically. Except > they're not. > > I've connected everything exactly as shown in the KAT500 manual: > > - K3's ACC port is connected to the tuner's XCVR port, via the official > KPAK3AUX cable. > - The tuner's AMP port is connected to the amp's AUX port, via the > official E850463 cable. > > I'm definitely able to use the K3 and tuner together when the amp is off. > But when I turn on the amp, there appears to be no communication between > amp and K3. > > - The amp doesn't notice when I change bands on the K3. > - The amp won't let me change bands at all, even when I push its band > buttons! > - When I put the amp into OPER and transmit 15 or 20W from the K3, the > amp doesn't appear to "key" and amplify. It just shows the exact 20W as > passing through (on it's 'power' display.) > > I've verified that the amp's RADIO option is set to 'K3'. > > Does anyone have any ideas?
What happens if you connect the K3 directly to the KPA500 (i.e. remove the KAT500 from the picture, temporarily) ? If they still don't cooperate, try the other cable.... 73, ~iain / N6ML ______________________________________________________________ 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