[TowerTalk] Antenna Separation to eliminate Computer RFI

[ersmar@comcast.net]

Pat:

      Can you take a battery-powered HF radio onto the roof and listen to
both locations - the current antenna location and the proposed new remote
location?  That might be all you need to decide your course of action.

73 de
Gene Smar  AD3F


----- Original Message -----
From: "Pat Barthelow" <aa6eg at hotmail.com>
To: <towertalk at contesting.com>
Sent: Wednesday, September 14, 2005 8:04 PM
Subject: [TowerTalk] Antenna Separation to eliminate Computer RFI


> Folks,
>
> I am helping a local university  bring up an HF station equipped with
> Winlink Modems and softare to use as a medium for teaching computer
> networking and security.   The station antenna  is set up in the main
> student and classroom computing center, on the roof, within 100 ft of
maybe
> 150-200 networked computers.  Surprise Surprise, S-9 white noise hash on
> most bands.
> My question is, We need to have the Transmitter and winlink setup located
at
> a classroom teaching position, along side the HF station, but it may be
> possible to move the antenna some distance away from the building.  Is it
> likely that a movement of the antenna from directly over the computing
> rooms, to, say 150 ft horizontally away will reduce the current noise
> sufficiently to be usable?  How rapidly does the signal intensity
decrease,
> as I move the antenna away from the building?
>
> Thanks,
>
> Pat Barthelow    aa6eg at hotmail.com
>
>
> _______________________________________________
>
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Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
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