[Elecraft] Kenwood TS-590SG with KPA500 amp?

[Michael Walker]

Oh, I meant to add, I let the amp sniff RF and it just works.  No issues.

This is at my remote base where I have seen the amp start up at -20C
without issue and after time, I can actually get it up to 0C.  :)

The equipment is kept in a non-heated room and seems to work no matter
what.  I'm impressed.

Mike va3mw


On Fri, Jan 22, 2016 at 8:54 PM, Cliff Frescura <cf at cfcorp.com> wrote:

> I have an old TS-940 working with the KPA500.  I used the ACC amp
> connections on the back on the Kenwood for PTT, which I believe is a DIP
> mechanical relay - not loud at all.  In addition, the KPA500 sniffs the
> RS-232 line between the Kenwood and my logging PC running DXLabs to
> automatically switch bands on the KPA when the frequency changes via the
> computer or via the radio.
>
> 73,
>
> Cliff K3LL
>
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of
> Steven
> C Veal
> Sent: Friday, January 22, 2016 4:55 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Kenwood TS-590SG with KPA500 amp?
>
> 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
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