[TowerTalk] hardline bending radius

Steve Maki lists at oakcom.org
Tue Nov 20 07:50:44 EST 2012


On 11/20/2012 4:54 AM, Jim Thomson wrote:
> Date: Mon, 19 Nov 2012 13:35:01 -0500 (EST)
> From: K7LXC at aol.com
> To: towertalk at contesting.com, jimlux at earthlink.net
> Subject: Re: [TowerTalk] hardline bending radius
>
>>> I recollect that the minimum bending radius for all coaxes is 6
> times
>> the diameter. For 1/2" RG-8, that'd be 3 inches.
>
>
>> I think that's for coax with braided shield (the RG-8, RG-213) kind.
>
> It's an Andrew standard for their non-braided coaxes.
>
> Cheers,
> Steve K7LXC
> TOWER TECH

> ##  as a side note, if RFS brand heliax is used, the turning radius is one heck of a lot less
> than Andrew heliax.  The RFS stuff uses a corrugated cu center conductor as well as the
> either cu or AL  corrugated shield.  Andrew heliax uses a copper tube on it’s  7/8”  heliax...
> and also on its 1.25”  heliax.   The RFS stuff is flexible.   IF you get the version with the
> AL corrugated shield, it’s also very very light.  That AL outer shield version only comes
> in 2 sizes, 7/8”  and also 1.25” .  It’s a lot cheaper than andrew....esp if you get it at Davis RF.
> And of course, 7-16 Dins are readily available for both sizes.  The RFS stuff is a heck of a lot
> easier to work with.
>
> later........ Jim   VE7RF

That's a bit of over-generalization. Both RFS and Andrew make standard 
and flexible versions of their cables. The construction is virtually 
identical on comparable versions.

-Steve K8LX



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