[TowerTalk] Dipole center insulator strain releif

Jim Lux jimlux at earthlink.net
Mon Apr 23 16:04:29 PDT 2012

On 4/23/12 3:51 PM, Stan Labinsky Jr. wrote:
> Guys... and ladies too...
> All this talk of looping the coax over some sort of support and the concerns
> about bend radius and the cable weight damaging the cable at the bend,
> etc.causes me to suggest an alternative.
> Has anyone tried to use 1/4" or 3/16" good outdoor UV stable rope (or line
> as you wish to call it) to Whip the cable and hang it from the antenna
> insulator - a good ceramic "dog bone"?
> See http://en.wikipedia.org/wiki/Common_whipping
> The co-ax would be the rope in the image. The line end labeled "B" would be
> the end used to hang the cable (the antenna end of the co-ax being the "B"
> end of the rope).
> I've used this technique with good success. The cable is held by the
> multiple wraps of the whipping cord, distributing the load on the jacket
> over the many turns, the hanging lead "B" is supported at its root from the
> "A" end of the whipping, and also held in place by the same turns holding
> the cable.

The same basic idea as, say, Kellems grips.  the clamping/grabbing force 
is distributed over a length of the jacket.


that one runs into a conduit fitting, but I've seen ones that terminate 
in a steel cable loop, which could attach to that center insulator.

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