Richard Fry wrote:

... I am asking for comments on what I wrote --
________________

Thanks to all who responded. Now to process those responses.

RF

One final comment: this thread shows how difficult it can be to distil a
complex subject down to a few paragraphs, without making generalizations
that will sometimes be incorrect.

It can never be done in a single pass, so all credit for making the
effort and for taking the comments on board.


--
73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek