This worksheet calculates wavelength (W.L.), half wavelength and quarter wavelength of coaxial cable
based on the velocity factor of said cable at a frequency of interest. If the dielectric constant
(er)of the cable is know rather than the velocity factor (vf), that parameter
may be entered instead.
Remember that manufacturers published values for velocity factor are "nominal" and vary in "real life" from
reality. It is not uncommon, for example, to see the velocity factor vary from one end of a 500' reel of
coax to the other. Part of the problem is the inability of coax spooling machines to maintain the same
tension on the cable when the reel is just being started (small winding radius) to when it is finished
(large winding radius).