BTW, let's not forget the supposedly true story of the the first prototype of
the much-admired Racal RA-17 receiver.

It seems that less than a day before the British Navy was to come and try out
the prototype, the Racal engineers could not eliminate a few nasty birdies.
(Wadley Loop sets make more birdies than Tiger Woods and Annika put together,
and are very intolerant of imperfect shielding).

Finally someone figured out it was a ground-loop problem, with different
frequencies using the sold cast aluminum chassis as a ground return.

So the ran the whole radio thru a big band saw, cutting one section of the
chassis loose, and then running ground return wires for the offending signals.

I checked my own RA-17, and sure enough, the chassis has the "cut" designed in.

Anyway, quibbling over nibbling tools is for amateurs. It takes a PRO to shove
the whole set thru the bandsaw! 73, Mike K. AA1UK

Oscar loves trash, but hates Spam! Delete him to reply to me.