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Re: [TowerTalk] New MF Broadcasting Array

To: <donovanf@starpower.net>
Subject: Re: [TowerTalk] New MF Broadcasting Array
From: " Peter Forbes" <prforbes@bigpond.net.au>
Date: Thu, 5 Jul 2007 09:24:37 +1000
List-post: <mailto:towertalk@contesting.com>
FWIW,

If this station is operating on 1539 Khz, it is quite close to, but above 
the electron gyro frequency, which is around 1450 Khz in Europe.

This brings into effect two issues:

(!) the high absorption of the e wave compared with the 0 wave as you 
approach the gyro frequency

and

(2) the well known effect of  localised heating of the D layer  (300KW ERP) 
and the cross modulation effects in high density transmission areas 
(sometimes called the Luxembourg Effect)

The claimed "matchng" of the o wave correct polaristaion to the antenna is 
interesting and needs further explanation by someone better versed in 
ionospheric propagation.close to the gyrofrequency.

Cheers

Peter   VK3QI


----- Original Message ----- 
From: <donovanf@starpower.net>
To: <TOWERTALK@CONTESTING.COM>
Sent: Wednesday, July 04, 2007 11:30 PM
Subject: [TowerTalk] New MF Broadcasting Array


> Lets hear some comments about this new MF broadcasting array:
>
> http://www.broadcast-transradio.com/Horizontal_Task_for_TRANSRADIO.pdf
>
> 73!
> Frank
> W3LPL
> _______________________________________________
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