Matlab helper function for interpolating loss of coaxial RG58 cable as function of frequency per unit length.

RG58_loss.m

function dBLossPerM = RG58_loss(f)
% Function for estimate RG58 coaxial cable loss as a function of frequency
% per meter.  Data is drawn from https://www.w4rp.com/ref/coax.html and is
% not varified with real lab measurments. Take it with a
% grain of salt.
%
% Output interpolates from the spaced data points.  This is for estimating
% only.
%
% Author: Andrew Wade
% Date: Oct 30, 2020

ff = [144e6,220e6,450e6,915e6,1.2e9,2.4e9,5.8e9];  % Sample frequencies
lv = [20.3,24.3,34.8,54.1,69.2,105.6,169.2]./100;  % convert to dB per m


dBLossPerM = interp1(ff, lv, f);
end