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From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
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> Graham.
> With that small antenna you might be lucky if it is 0.1% efficient,
> therefore to get 1w erp you need 1Kw less 2.6db ie 555 watts to the 
> antenna
> feed point.
> If you are using a linear pa at 50% eff you would need a DC input of 1.110
> Kwatts or a class D at 70% eff 793 watts.
> This is a rough estimate, other factors need consideration as explained
> before.
> You probably know all about the subject anyway.
> To measure the far field properly an airborne platform is necessary to get 
> a
> clear run and avoid obstructions like buildings and trees etc. This is the
> procedure used professionally. If you have a friend in the RAF this might
> help
>
> mal/g3kev
>
>

____________________________________________________________



I was typing 'fields' into  google and can across this , nicely framed by 
the boys

from Liverpool



http://uk.youtube.com/watch?v=Ywg-PdeGVL0



'A friend in the RAF' ,  Guess that's a new take on 'Aerial' measurements,



http://uk.youtube.com/watch?v=rJX03LcmNpU



1.1 Kw dc input may  be be 'pushing' things a little too far  hihi



G ..