[RFI] Noise - What to look for?

[Jim]

Jeff,

In the 'old days' if it repeated every 15,750 (B&W)
or 15,734 (color) Hz it was a TV set -

- this sounds more like a PC monitor as you
described it, although the old TV sets didn't
produce garbage 4 or 5 KHz wide though.

Occasionally I find my PC CRT monitor produces
garbage on HF - switching it off confirms it each
time.

What does the 4 or 5 KHz stuff sound like - raspy
like 60 Hz modulation or a broader 'white noise'
source?

Jim WB5WPA


----- Original Message -----
From: <jeff_list at burnshome.org>
To: <rfi at contesting.com>
Sent: Thursday, December 30, 2004 8:42 PM
Subject: [RFI] Noise - What to look for?


> I am observing a S5 noise source that is 4 or 5 KHz wide on 80m. It r
> repeats every 23 KHz all across the band. This pattern is also apparent on
> 160m and 40m, but the signal is not as strong.  What kind of source should
I
> be looking for?
>
>
>
> Jeff Burns
>
> AD9T
>
>