[time-nuts] GPS antenna installation problem
Hal Murray
hmurray at megapathdsl.net
Mon Mar 2 10:22:03 UTC 2009
> Gaffa tape the cable to the supporting pipe with a small drip loop
> into the connector.
That assumes the cable gets to the outside of the pipe. I was interested in
the case where the antenna sits directly on the top of the pipe (not a
bracket off to the side).
Some antennas are setup with the coax connector on the inside of a place with
threads where the pipe attaches. The coax has to go up the inside of the
mounting pipe. You can also use a bracket, but it's setup for the
inside-the-pipe approach.
Here is a drawing:
http://www.synergy-gps.com/images/stories/pdf/anttiming3000_tn888.pdf
For a setup like that, I don't see how to get tape or anything else inside
the pipe, so the coax will end up hanging from the connector.
So the question is how much coax can you hang from a connector?
Clearly a foot or 3 is reasonable because you need that much for a drip loop.
How about 6 ft? 20 ft?
--
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