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Re: [RFI] A fun and educational RFI toy.

To: <rfi@contesting.com>
Subject: Re: [RFI] A fun and educational RFI toy.
From: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Thu, 1 Mar 2012 11:00:20 -0800
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
: I've said it before and I say it here again: if you are going to work in
: absolute numbers, the receiver's S meter calibration must be known.

It is, but rather than take it to the shop and verify a ten year old
measurement for the sake of a moments worth of posting, I ran the number off
the top of my head within about 0dB.  The 225nV number came from an NIST
conversion chart based on what I know of my receiver.

"only make an educated guess at the moment without equipment set up to

Is not an absolute, or I would have stated "I can only make this absolute
statement as to the absolute output of my LISN box in these conditions..."
Actually, I would have said, "the output is xxx.xxx nV".

For the rest of the world, a few billionths of a volt worth of RFI which can
change with temperature, humidity, clouds in the sky, birds on the lawn,
scratch in a piece of co-ax or what they chose to wear today won't even

Most importantly, don't over-elaborate what you read or the purpose of the 
post, which is no more than "see if this item makes noise".


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