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[Towertalk] bip/bop

To: <towertalk@contesting.com>
Subject: [Towertalk] bip/bop
From: swca@swbell.net (Mark Beckwith)
Date: Thu, 30 May 2002 20:58:23 -0500
K7PUC asked:

> What the !%^&* is? [bip/bop]

I think I have this right:

BIP BOP is a coax switch abbreviation for "Both In Phase - Both Out of
Phase" referring to having two vertically stacked antennas.   I think
usually it's a 4 position switch.  The full name is:

"Top - Bottom - BIP - BOP"

or

"Upper - Lower - BIP - BOP"

This swich fairly obviously controls where the power is sent to the
combination of antennas - either to the upper one or the lower one or both
of them, either in phase or out of phase.  This is a total of four choices
for your two antenna stack.

Mark, N5OT



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