Chris Bacon wrote:

mungoh wrote:

I thought that there was a factor of ten between inside the roof and
outside the roof?


I looked at http://www.wrightsaerials.tv/, which I saw here, or
some digital TV group - there's some good stuff there, for instance:
http://www.wrightsaerials.tv/digitalterrtvrecep.htm.

That is a most excellent bit of nettery...

There's also
http://www.wolfbane.com/cgi-bin/tvd.exe? and so on.

That says 'amplified extra high gain' - well I didn't need THAT.