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[TowerTalk] Heliax Bending Radius

To: <towertalk@contesting.com>
Subject: [TowerTalk] Heliax Bending Radius
From: K7LXC@aol.com (K7LXC@aol.com)
Date: Mon, 26 Oct 1998 09:23:03 EST
In a message dated 98-10-26 00:12:36 EST, rikik@inter.net.il writes:

> I would like to know what is the minimum allowable bending radius for
>  Andrews Heliax
>  type FHJ4-50B.  The outside diamater of the cable is apx. 1/2 inch.
>  If anybody has an authoritative data sheet catalog, etc. I would
>  really receiving this information.  If available, I would like to know
>  power handling and attenuation characteristics for HF too.

       Couldn't find that part number - must be an export. The catalog I have
has FSJ4-50B which is 1/2 inch Superflex. The minimum bending radius is 1.25
inches or 32 mm. If you have the regular 1/2 inch Heliax, it's bending radius
is 5 inches, 125 mm. (or approximately 10 times its diameter). The Superflex
will take more bending (that's why it's Superflex).

      The Andrew catalog is a 785 page, 4 pound treasure trove of product
info, neat pictures and lots of specs. Contact your Andrew supplier for a
copy. 

Cheers,  Steve   K7LXC

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