Steve All HF amps the same regardless of the vender.
This pretty much sums it up. http://rin3.blogspot.ca/2014/12/how-to-key-your-amplifiers-with-ts-590g.html You can ignore the pin 7 part if that helps (that is option 2) Pin 2 of the DIN connector goes to ground (or the shield of an RCA cable) Pin 4 goes to the center of the RCA connector you'll need for the amp. What that does is that when the radio goes into Transmit, Pin 4 is grounded and that turns the KPA500 on in TX mode. You don't require any external devices or additional keying relays unless you like to wear a belt and suspenders. :) That should work just fine for decades. I hope that helps, Mike va3mw On Fri, Jan 22, 2016 at 7:54 PM, Steven C Veal <scv...@swbell.net> wrote: > Hello all: > I have a KPA500 on order to use with my Kenwood TS-590SG (and with my > Elecraft KX3). I would appreciate any suggestions on the best way to > interface the TS-590SG and the amp. > In reviewing the Kenwood manual and some of the Yahoo groups, it appears > that there are at least two ways to interface to the amp. The 590SG offers > a mechanical relay as well as a solid state relay for amplifier switching. > The mechanical relay is apparently fairly foolproof but is noisy. The > solid state relay is quieter or near silent but apparently has some issues > in keying the KPA500. I don't do CW, so rapid keying is not really an issue > with me. > I would appreciate any advice on the best way to interface these two. I > attempted a cursory scan of previous mail list posts but the number of > postings is voluminous. IS THERE A QUICK WAY TO SEARCH PREVIOUS POSTS? > Thanks all in advance for your responses!Steve, N5SKHWeatherford, TX > ______________________________________________________________ > 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 va...@portcredit.net > ______________________________________________________________ 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