You could use the antenna analyzer to find out what frequency the whole
cable is 1/2 wavelength at, measure its length, and then calculate the
velocity factor. Personally, I would guess that the factor is no less than
65%, whack off a piece, and take it from there.

Tam/WB2TT
"JGBOYLES" wrote in message
...
Hi,
I would like to cut a 75 ohm coaxial cable to 30 electrical degrees at
7.2
Mhz. for use in a series matching section. The velocity factor of the
cable is
not known. I have an Antenna Analyzer, and and RFsignal generator + the
usual.

The impedance of the coax is stamped on the jacket, any way to determine
30
degrees without guessing at the VF?
73 Gary N4AST