"Cecil Moore" wrote
Reg Edwards wrote:
I daresay some of you have made measurements at one time or
another.
The more data received the better. I can then take averages.

I've only measured two of them, Reg. I measured "450" ohm
ladder-line VF at approximately 0.9 and "300" ohm ladder-
line at ~0.8. I was surprised since I assumed it would be
opposite those results.
--
73, Cecil http://www.qsl.net/w5dxp
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Cec, the lower value for 300-ohm ladder line, compared with 450-ohm
ladder line, is what I would expect. Thanks for the figures.

It is the increase in capacitance between the two wires, due to the
permittivity of the insulation and because the wires are closer
together, which causes the decrease in velocity.
----
Reg.