"Tam/WB2TT" wrote in
:

BTW, the LMR240UF makes for great patch cords. It has a stranded
center conductor. 1/4 inch cable that is rated at 1500W. The LMR240

From the spec sheet, the average power rating at 30MHz is 1240W. I assume
that is with VSWR=1, so that a further derating is required for mismatch.
For example, at VSWR=2, the heating at a current maximum is nearly double
that for a flat line, so the power rating might be more like 620W with
VSWR=2.

Of course, in SSB telephony, the average power is very low and the cable is
probably limited by voltage breakdown at peaks, specified as 5.6kW for
LMR240UF.

Owen