[amsat-bb] Re: RH and LH CP simutaniously
John B. Stephensen
kd6ozh at comcast.net
Fri Jan 2 15:30:14 PST 2009
You can use a 90-degree hybrid splitter/combiner to produce LHCP and RHCP
for two receivers. Switching will produce sidebands at the switching
frequency and alias undesired signals into the receiver passband.
----- Original Message -----
From: "R. Chastain" <suenrod at yahoo.com>
To: "Amsat-BB" <amsat-bb at amsat.org>
Sent: Friday, January 02, 2009 23:15 UTC
Subject: [amsat-bb] RH and LH CP simutaniously
Has anyone ever considered the possibilty of using PIN diodes and a free
running square wave oscillator to electronically switch between RHCP and
The switching frequency would have to be high enough so as to not introduce
a tone to the signal.
Just a thought I have had for awhile.
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