[Elecraft] KPA500 switching ideas with a Flex-5000A?

Greg ab7r at cablespeed.com
Thu Jul 14 10:43:28 EDT 2011


Another option is a fun kit to build designed by KK1L.  It is a 2x6 antenna
switch and SO2R band decoder board.  The external switch has two inputs.
This will allow you to put the amp inline with ANT1 and ANT2 straight to the
second input.  You can than select up to 6 antennas for either output.  It
has very good isolation and is not difficult to build.

You can also set it up to auto select antennas by using BCD decoding from
the LPT port.

73
Greg
AB7R


On Thu, Jul 14, 2011 at 1:36 AM, Edward R. Cole <kl7uw at acsalaska.net> wrote:

> I copied the wrong part number on the Surplus sales site:
> s/b  (KC) 12W1008 as the least expensive cross-over relay rated for >1kW
>
> the CX800M has UHF connectors and works on 12vdc, whereas the relay
> above is N-connectors and requires 28vdc.
>
>
> 73, Ed - KL7UW, WD2XSH/45
> ======================================
> BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
> EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-?
> DUBUS Magazine USA Rep dubususa at gmail.com
> ======================================
>
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