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From: "g3ldo" <g3ldo@ukonline.co.uk>
To: rsgb_lf_group@blacksheep.org
References: <5.0.2.1.2.20010115093244.00a18b40@mail.pncl.co.uk>
Subject: Re: LF: coil screening
Date: Thu, 18 Jan 2001 21:35:47 -0000
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Further to Walters e-mail:

> Gamal says it all. It was impossible to keep the Decca coils tuned
> accurately and maintain phase constancy without the copper screening.

There is a photo in the Low Frequency Handbook, page 13, that shows the
Decca loading coils and the walls of the ATU building, with Lech, G3KAU;
this gives some idea of the coil and building dimensions.

There were some aluminium boxes around the Decca site containing coils. I
always felt that the boxes were rather large for the size of the coils
inside them - now I know why

Regards,
Peter, G3LDO

<g3ldo@ukonline.co.uk>.