In message , MM
wrote
so is an aerial cable different (more
susceptible) in this respect?

Yes. Google for "aerial cable crushing". The bend radius of a coaxial
cable should be no less than 10x the diameter of the cable. The cable
should not be crushed. A foam dielectric can held prevent (not
eliminate) crushing.
--
Alan
news2009 {at} admac {dot} myzen {dot} co {dot} uk