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Old April 6th 06, 12:34 PM posted to rec.radio.amateur.antenna
Roy Lewallen
 
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Default Velocity Factors

Some of the oval 300 ohm line, at least, was filled with PE foam. I
think this was intended to keep the water out.

Roy Lewallen, W7EL

Reg Edwards wrote:
Has anyone ever measured the velocity factor of the twin feeder in
which the support for the wires is in the form of a plastic tube?

I would guess the VF is quite high. There is no insulation directly
between the wires.
----
Reg.


 
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