Originally Posted by duvetyne
The ones around here do. It doesn't need to be solid or insulated anyway.
The mast ground doesn't have to be solid or insulated. It just needs to be 10 gauge copper, 8 gauge aluminum or 17 gauge copper clad steel.
I haven't bought a copy of the Model NEC since 2002, but as recently as then, the coax outer conductor had to be grounded with a solid, insulated copper wire approximately equal in current carrying capability to the outer conductor, which is ridiculous since, at high frequencies, the electrons travel on the skin and the current carrying capability of the outer conductor is roughly equal to that of a solid copper wire that size.
One electrical inspector with nothing better to do actually issued me a low voltage license and required the coax outer conductor ground to be 6 gauge. He said that while it didn't equal the current carrying capability of the outer conductor, there was no point in making it any larger since the code explicitly said I could use 6 gauge from my auxilliary ground rod to the system ground electrode, so there was no benefit to making the coax ground larger than that.