Topband: RG8X VF

[Paul Playford]

Don't stop at 'reliable'.  My Belden RG-11 foam's velocity factor is closer
to .7 than their specified .8.

Also, years ago I had cause to measure the loss on 12,000 feet of their
RG-11.  At 300 MHz it measured just exactly double the specified loss.

This is where I started to form my opinion that specifications do not lie -
but liars do specifiy.

de Paul, W8AEF


-----Original Message-----
From: topband-bounces at contesting.com [mailto:topband-bounces at contesting.com]
On Behalf Of Tom Rauch
Sent: Wednesday, December 15, 2004 8:11 PM
To: topband at contesting.com; Ron Feutz
Subject: Topband: RG8X VF

> driveway to install 1/4 wave lines.  BTW, the published Vf
for the line is
> .8.  Turned out to be .73.

Good point Ron. Always good to measure the cables unless it is a *reliable*
manufacturer.

All of the RG8X I've measured has been .7 to .75 vf.

Foamed cables can range from anything over .66 up to .9 or over depending on
the density of foam.

73 Tom

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