On 12/18/2025 12:48 PM, Joe Subich, W4TV wrote:
SWR is not minimum at zero reactance ... it is minimum where the vector impedance ( (R^2 + jX^2)^.5 ) is closest to 50 Ohms (in equipment calibrated to 50 Ohms).
SWR is established by the match of the antenna to the transmission line, NOT to the transmitter, and it that match to the antenna that determines loss in the line. Thanks to loss in the line, a MEASUREMENT of SWR at the transmitter will yield a lower value.
73, Jim K9YC _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
