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Re: LF: Mains Cable and other transmission lines

from [Bob Eldridge ] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Mains Cable and other transmission lines
From: "Bob Eldridge " <[email protected]>
Date: Thu, 08 May 2003 17:41:43 +0000
Reply-to: [email protected]
Sender: <[email protected]> 
At 13:55 04/05/2003 +0100, you wrote:

After reading Jim's e-mail I searched through all my radio books
(Terman, Kraus et al) for enlightenment and the reason for 50ohms as a
standard is not discussed at all.
Any references Jim?



I read somewhere that 77 ohms cable was determined to be the impedance
giving lowest attenuation, and that when it was filled with polyethylene
dielectric it created a 50 ohms cable. 
Bob VE7BS
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