I originally made this page for my roofer, whose workers repaired some dry rot in an area where cable TV coax ran, so they reattached the coax after replacing some roof boards to which the coax was attached. The workers used fasteners for electrical cable, not for coaxial cable. Here's an image showing the difference.
The staples on the lower left are Romex staples; they are not shaped correctly for coaxial cable. The fasteners on the lower right are coaxial staples; the one on the left is a nail staple and the one on the right is a screw clamp fastener.
Coaxial cable can be deformed. One way is by using incorrect fasteners. Another way is by making too sharp of bends in coaxial cable. Deformed coaxial cable can greatly attenuate high frequency signals normally carried by the coax, and can thus greatly reduce the bandwidth carried by the cable.
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