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[AMPS] Alpha 89 SWR protection

To: <amps@contesting.com>
Subject: [AMPS] Alpha 89 SWR protection
From: km1h@juno.com (km1h@juno.com)
Date: Sun, 21 Mar 1999 10:57:21 -0500


On Sat, 20 Mar 1999 01:12:20 -0500 "Dick Green" <dick.green@valley.net>
writes:
>

SNIP

>Hmmm... instead of finding an amp to match the antenna, maybe it would 
>be
>wiser just to pop a relay-controlled match on that vee...
>
>73, Dick, WC1M

Why not parallel another inv V for 75M on the same feed? If you can
manage at least a 45 degree angle between them the interaction will be
minimal.  The VSWR curve will look like the letter W and should be under
2:1 over most of 3.5 to 3.9MHz.

A benefit is that both sets of wires will radiate which fills in the
patterns real nice. Ive used that for 17 yrs ever since reading a W2PV
article. I run 80/75 at right angles and 160 down the middle.

Enough antenna talk!

73  Carl   KM1H

 

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