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Re: [RFI] distance to rfi source?

To: RFI Services' Michael Martin <mike@rfiservices.com>
Subject: Re: [RFI] distance to rfi source?
From: Sam Morgan <k5oai.sam@gmail.com>
Date: Thu, 06 Jan 2011 15:06:48 -0600
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
here is all the info I have so far:

the posted recordings are the ones that contained some buzz or something,
I didn't save or post the ones that just sound like noise floor.

GB & 73
Sam Morgan

On 1/6/2011 12:48 PM, RFI Services' Michael Martin wrote:
> Absolutely not. Actually the rule of thumb, for lack of a better term at the
> moment, is just the opposite. RF signals usually travel further at lower
> frequencies. However this is also affected by the resonance of the antenna
> being used and the distance between the source and the antenna. If an
> antenna is equally resonant on 80 meters and 10 meters and the source were
> 10 meters away from the antenna the RF wave length would reach the antenna
> at the resonant peak and would be stronger than a noise that reached the
> same antenna at the null of the 80 meter wave length while monitoring the 80
> meter band.
> Sorry I'm on a break from applying these principles and can't elaborate
> further.
> Ask your RFI investigator to call me and I'll be happy to assist him and
> explain.
> Michael C. Martin
> RFI Services
> 6469 Old Solomons Island Rd
> Tracys Landing, MD 20779
> www.rfiservices.com
> 240-508-3760
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