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Date: Wed, 16 May 2007 16:17:23 +0200
To: rsgb_lf_group@blacksheep.org
From: Dick Rollema <dickrollema@casema.nl>
In-Reply-To: <20070515185527.IOB84712@lon1-mailstore-2.visp.demon.net>
References: <20070515185527.IOB84712@lon1-mailstore-2.visp.demon.net>
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Message-Id: <20070516141651.EF3EB57D0@mta-fe.casema.nl>
Subject: LF: Field strength of  Anthorn at PA0SE
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To All from PA0SE

The location of Anthorn is given as 54=B0  55'  N;  3=B0  15' W.
A computer program, written by Harry, PA0LQ, gives as locator IO84JW

My locator is JO22GD.
Again using the PA0LQ program the distance=20
between Anthorn and my place is found to be 598 km..

The power of Anthorn is quoted as 15 kW EMRP.

The CCIR graph for propagation over sea water,=20
average salinity, predict a field strength at my=20
location of 1.23 millivolt/metre.
I have measured 1.38 millivolt/metre.  Only a=20
little bit higher than predicted and certainly=20
within the accuracy by which the graph can be read.

One could object that Anthorn is not at the coast=20
so the path in the UK is over land (I live only=20
15 km from the coast).  But the CCIR graphs for=20
sea water and land (conductivity 0.03 S/m;=20
di=EBlectric constant 40) are identical for the frequency and distance=
 involved.

73, Dick, PA0SE

At 19:55 15-5-2007, you wrote:
>Hi LF Group...
>
>Very interesting I expected as much see the promise below
>after my enquiry about the coveraqe!!!! ....
>
>
>
>Date :  Tue 30 May 14:52:29 BST 2006
>
> From :  "Enquiry" <enquiry@npl.co.uk>   Add To Address Book
>
>Subject :  MSF query
>
>To :  <m0fmt@beeb.net>
>
>
>
>  Previous     Next     Printer Friendly Version
>
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>
>
>Thank you for your email. You can find more information
>about the MSF time signal on our website at
>http://www.npl.co.uk/time/msf/
>
>You should still receive the signal without difficulty after
>the move to Anthorn. The signal will still cover the whole
>of the UK and extend beyond to much of North and West
>Europe. You will probably not notice any difference at all
>and most people will be unaware anything has changed.
>
>I hope this helps
>
>Kind Regards
>Julia
>
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