[WSWSS] Re: WTB 222 preamp

John Hawkinson [email protected]
Mon, 17 Nov 2003 14:45:50 -0500


[email protected] <[email protected]> wrote on Mon, 17 Nov 2003
at 11:13:18 -0800 in <[email protected]>:


> I am looking for a self contained high power preamp for 222 like SSB or 
> maybe ARR(?).  Needs to be able to handle at least 500w and preferably 
> closer to (or greater than) 1KW.  I know I can build up something 
> better/lower NF, but for now I want something compact that I can mount 
> right at the feed.

At those power levels, you really need to use a transfer relay around
the preamplifier, keyed through a sequencer. I don't think you're
going to find any acceptable RF-switched preamps that take more than
200W.

--jhawk
  KB1CGZ