[TowerTalk] hardline bending radius

[Jim Lux]

On 11/16/12 9:21 AM, Hans Hammarquist wrote:
> Does anyone have a good idea of minimum bending radius for the 1/2 inch cable TV hardline? I have been told anything from 5" to 50". I believe 5" is way  too sharp but 50"??? I sure that 50" would not cause any problems with the cable but ...
>

Like Andrew LDF Heliax?  5" is the min bending radius..

The thing to remember is not so much the bend radius, but, rather, you 
only get to bend it once.  Each time you bend it, it work hardens the 
copper a bit, leading to cracks, etc.

Also, if you're going to bend it that tight, you need some sort of 
mandrel or bending jig to support it.  Think of bending copper tubing or 
electrical conduit. (in fact, a conduit bender might work real well for 
this application)