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Re: Mast Mounted Preamps.

I use and recommend the SSB Electronics SP-2000 and SP-7000 GaAs FET 
preamps.  They switch RF without an external sequencer (200W on 2m, 100W 
on 70cm).  A high-Q helical bandpass filter reduces the chance of 
overload from your own transmit signal or other strong RF sources.  The 
enclosure is weatherproof, well-shielded, and designed for mast 
mounting.  They are expensive because they are made in Germany.

(this is the website of the U.S. Distributor)

Wayne Estes W9AE
Oakland, Oregon, USA, CN83ik
Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
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