Frequency and Wavelength
f MHz λ ft
k % + in
c 299792458 m/s k %
c 299792458 m/s
λ = m λ = m
λ = f = MHz
λ/2 = f/2 = MHz
λ/4 = f/4 = MHz
Typical values for k
100% Vacuum
95% Dipole element
85% LMR-400
84% LMR-240
66% RG-58 (Belden 8259, 8240)
66% RG-59 (Belden 8241)