[UK-CONTEST] Remote Antenna switch?

[Deni, F5VJC]

I would like to switch one of three antennas to one coaxial cable.

Does anyone know where to obtain a remote Antenna switch where the 
switch control voltage is fed via the common Coaxial cable, by means of 
a DC injector.

I know of the "AS 204" by SSB Electronics USA, but can't find a supplier 
in Europe.

Most remote switches seem to have a dedicated control cable rather than 
the feed DC over the coax.
Is there any problem, with coax feeding DC, given adequate RF isolation?

The antennas are for HF Rx / Tx to legal power.

Thanks for any help or suggestions.

-- 
73, Deni
F5VJC

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