160m: [Collins] Crystals

[John Harden, D.M.D.]

I built a 160 meter, solid state converter for a 75S-1 several years
ago. It works fine and is sitting on a shelf as I no longer have the
receiver. It uses a xtal around 27 MHz and the 160 meter reception is on
the 10 meter band...

73,

John, W4NU
Atlanta
K4JAG 1959 to 1998

-----Original Message-----
From: collins-bounces at mailman.qth.net
[mailto:collins-bounces at mailman.qth.net] On Behalf Of Dr. Gerald N.
Johnson, electrical engineer
Sent: Saturday, May 29, 2004 7:47 AM
To: hbreuer at debitel.net
Cc: Collins at mailman.qth.net
Subject: Re: 160m: [Collins] Crystals

While the NE-602 would convert, it has limited high end dynamic range
and that can be a limitation on a 160 meter converter. Other IC's or
diode ring mixers can have better performance.

Tentec made a 160 meter converter. Drake made a 160 meter converter if I
recall correctly. I'm sure there were circuits in a few decades of ARRL
handbooks with all the details worked out.

73, Jerry, K0CQ, Technical Advisor to the CRA
-- 
Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.
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