[Amps] antenna relay connections

Paul Christensen w9ac at arrl.net
Sat Jun 18 21:26:31 PDT 2011


> I am putting together a fairly big amp (4CX3000A) and I've gotten to
> the question ... I'm concerned with reliability and noise.

I've been using 1KV Silicone test lead wire.

http://www.testpath.com/Categories/Silicone-Test-Lead-Wire-3086.htm

I imagine that the 13 Gauge wire (651 micro-strands) would work commensurate 
with the 4CX3000A.  Even at 5KW, the wire voltage rating is about 50% in a 
50-ohm system.

To help prevent acoustical conduction, I connect the wire to each relay 
terminal in a single loop.  Because of the highly flexible nature of the 
micro-stranding, this completely dampens acoustical conduction when the 
vacuum relay is shock-mounted on a Silicone sheet.

Paul, W9AC

 



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