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Re: [TowerTalk] Antenna Separation to eliminate Computer RFI

To: "Pat Barthelow" <aa6eg@hotmail.com>, <towertalk@contesting.com>
Subject: Re: [TowerTalk] Antenna Separation to eliminate Computer RFI
From: <ersmar@comcast.net>
Date: Wed, 14 Sep 2005 20:14:56 -0400
List-post: <mailto:towertalk@contesting.com>
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@hotmail.com>
To: <towertalk@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@hotmail.com
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>

_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 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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