Cecil, W5DXP wrote:
"Assume 3 dB matched line loss in the transmission line. Assume an SWR
of 5.83:1 (rho=0.707) at the load for the mismatched condition."

Using 100 watts forward and 50 watts reflected into the "Antenna Book"
graph gives an SWR of 5 or 6. If I had my Bird SWR sliderule at hand, I
could be more precise without lifting a calculator.

According to the "additional line loss graph", this SWR adds about 2 dB
to a matched loss of 3 dB for a total loss of about 5 dB with such a
mismatch.

Best regards, Richard Harrison, KB5WZI