I don't know the OP's reasons for wanting to know but I'd think it useful
for knowing how much is used on a run, how much is left on a reel and for
tracking down faults to think of just a few.
"Precise" is of course variable by application, from back when 10b2
ethernet was a thing and dinosaurs roamed the earth within a metre was
excellent because I can eyeball and inspect for faults at that sort of
distance, YMMV.
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On Mon, 12 Jun 2023, 07:35 Jim VE7RF, <jim.thom@...> wrote:
I'm trying to fathom the reason for knowing the exact physical length of
a piece of coax, or it's exact electrical length. What are you trying to
do here, phase yagis on 14 mhz.... or building a 4 square vertical array
for 80m ?
Even if building stacked yagis, and the coax is all coming off the same
reel, it's a moot point. All that is required is equal lengths of coax
from the L network, to each yagi.
