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R: How far should one separate a LNA and its associated down converter, and Why?




----- Original Message -----
From: Rick Vidmar - K9KK <k9kk@earthlink.net>
To: <amsat-bb@AMSAT.Org>
Sent: Saturday, March 29, 2003 4:18 PM
Subject: Re: [amsat-bb] How far should one separate a LNA and its associated
down converter, and Why?


> I also experienced 13ULNA preamp instability and solved it by putting a 1"
> square piece of black anti-static foam in the DEM enclosure.  It was about
a
> 1/4" thick.  My 13ULNA is connected to my downconverter through a double
> male N barrel connector.
>

Hi Rick K9KK,

Additional info about metods to solve preamp instability like you describes
are available in QEX June 1994 "Building Enclosures for Microwave Circuits"
by Rus Healy, NJ2L

73" de i8CVS Domenico

>
> ----
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