I used Deltrol relays from Surplus Sales of Nebraska to switch my matching,
$24 and rated at 6kV from memory.
Working fine at 400W even on my very short radiator.
-----Original Message-----
From: Tom W8JI
Sent: Tuesday, June 03, 2014 2:14 PM
To: W0MU Mike Fatchett ; topband@contesting.com
Subject: Re: Topband: Using 80m 1/4 vertical on 160
I am putting up a single DXE 80m 1/4 vertical. I can put out the proper
radials. I will have to add some longer ones for 160.
That's a good vertical, and the 80M radials will probaby be adequate if you
have enough of them.
Now to figure out switching in and out 160 and the matching.
That is always the difficult part. If you have a good ground system and high
efficiency, voltage can get pretty high when on the higher band for a top
wire, and the lower band for switching a coil. Many systems work at high
power because of losses.
If you just want to run outside to change bands, it is easy.
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