[TowerTalk] Coax

jimlux jimlux at earthlink.net
Wed Jul 23 09:15:22 EDT 2008

Charles Gallo wrote:
> On 7/22/2008 K7LXC at aol.com wrote: ...snip...
>> So for RG-8 the minimum bending radius is 20  inches?!? I don't
>> think so. As I recall, the multiple is 6, giving you a 3"  radius.
>> It's higher for Andrew Heliax and other high grade coaxes but I
>> don't  recall the specifics.
> ...snip...
> Per NASA "Coaxial cables shall not be bent below the minimum
> recommended inside bend radius (6 diameters for flexible, 2 diameters
> for semi-rigid and rigid)."
> see:
> http://workmanship.nasa.gov/lib/insp/2%20books/links/sections/404%20Coaxial.html

And I suspect that this standard doesn't apply to Heliax and similar styles.

There would almost always be a requirement that one follow the 
manufacturer's recommendation, as well.


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