Message-ID: <199911060805.IAA02080@homer.thefree.net>
From: tony@fdn.co.uk
To: rsgb_lf_group@blacksheep.org
Date: Sat, 6 Nov 1999 08:04:50 -0000
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Subject: Re: LF: Crossed Field Antenna
In-reply-to: <38234780.E497C70B@virgin.net>
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On 5 Nov 99, at 21:09, Stewart Bryant wrote:
> There is a good analysis of the CFA ("Crossed Field Antenna") that has
> been written up by Prof. Jefferies at University of Surrey which he has
> posted on the web at 
>  http://www.ee.surrey.ac.uk/Personal/D.Jefferies/poynting.html 
> Regards 
> Stewart G3YSX
Thanks for that info: an interesting technical analysis indeed !
Personally, here in Brentwood Essex, there has been good 
reception of both Radio Minsk and the more interesting Ashkhabad 
Turkmenistan on 279Khz AM this year; and I do not view with any 
enthusiasm the prospect of another west-european pop-music type 
broadcaster on the long wave band obliterating the DX, - 
http://www.279longwave.com/coverage-map.html , so it's 
interesting to read some solid theorising around the inefficiency of 
Crossed Field Antennas.  Sounds like the Isle of Man 279khz LF 
station could be thermally really warm for staff all through the 
winter, if its antenna proves as inefficient as hypothesised !
   But a CFA in the back garden for 136khz, that might be 
intersting :-) 
73s de Tony G3ZRH