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Re: LF: Re: SWR-off topic

To: [email protected]
Subject: Re: LF: Re: SWR-off topic
From: "M. J. Powell" <[email protected]>
Date: Sun, 16 Jan 2005 23:38:52 +0000
In-reply-to: <003501c4fc11$e6b3c080$7c3f8351@w4o8m9>
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In message <003501c4fc11$e6b3c080$7c3f8351@w4o8m9>, James Moritz <[email protected]> writes
Dear Peter, LF Group,

I think the mathematical theory of transmission lines evolved with the
appearance of long-distance telegraph lines, but measuring standing waves
could only have become practical with the appearance of HF radio. In some
pre-war papers I have seen descriptions of little trolleys carrying
thermocouple ammeters that could be pulled along an open-wire line (there is
a rather vague description in Terman's "Radio Engineering"),

This was done at Marconi College when I was with the company '52 - '55.

Binoculars were provided to read the ammeter...

Mike
--
M.J.Powell



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