Coaxial Cable Basics|
The physical length of one wavelength of coax is:
Coax length, in feet = (984/Frequency) * Velocity Factor
The physical length of one quarter-wavelength of
Coax length, in feet = (246/Frequency) * Velocity Factor
A Quarter wavelength of RG-58/U (VF = 0.66) at
7.025Mhz would be 23.11 feet long.
Coaxial Cable Specifications - 1