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Re: [RFI] Unknown Signal

To: rfi@contesting.com
Subject: Re: [RFI] Unknown Signal
From: Pete Smith <n4zr@contesting.com>
Date: Sun, 07 Dec 2003 20:43:28 -0500
List-post: <mailto:rfi@contesting.com>
At 08:37 PM 12/7/03 -0500, you wrote:

I popped my wife's telephone apart, and it has a simple 28.63 crystal.
Obviously they are everywhere.

> The 28.636 Mc. signal comes from video cards/circuits in computers & some
> TV's.  Poke around  PC  boards and you'll find clock osc modules in
> hermetically sealed rectangular cans, marked  28.636 Mc.  Others use14.318

Well, that sure helps to explain why they don't all see to come from one place, or for that matter why the sound may be different on different receivers...

73, Pete N4ZR
Happy Holidays
Check out the World HF Contest Station Database at www.pvrc.org/wcsd/wcsdsearch.htm

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