[time-nuts] GPS antenna installation problem

Don Latham djl at montana.com
Mon Mar 2 01:37:10 EST 2009


Your chinese finger trap supports are available at any reasonably sized 
electrical supply house.
Don

----- Original Message ----- 
From: "Hal Murray" <hmurray at megapathdsl.net>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Sunday, March 01, 2009 6:15 PM
Subject: Re: [time-nuts] GPS antenna installation problem


>
>> Two or one tee connectors will allow the cable to exit and reenter. If
>> your side arm is using a elbow now replace it with a tee.
>
> Thanks, but I don't picture what you are trying to describe.
>
> Are you talking about tees and elbows in the pipe or cable?
>
> I was thinking of the simple case with only a simple vertical pipe to a
> single antenna, no side arms.
>
> Maybe the answer is that you can't support the cable in the really simple
> case of one vertical pipe with the antenna on top.  If you want to support
> the cable you have to have some other setup so you can get at the cable.
>
> How about a different question?  How much cable can a connector support?
>
> How would I support a cable anyway?  I'm thinking of something like a 
> Chinese
> finger trap with a string on one end that gets attached to a string.  Are
> there cable clamp gizmos that are tight enough to grab but loose enough 
> not
> to distort the cable and also work over temperature cycling and ...
>
> Is low loss coax stiff enough that I can support it from the bottom and 
> push
> it up into a pipe?  (I'm assuming the pipe is narrow enough and/or the 
> coax
> is stiff enough to hold the coax in place.)
>
>
> -- 
> These are my opinions, not necessarily my employer's.  I hate spam.
>
>
>
>
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