On 5/15/2020 8:27 AM, donov...@starpower.net wrote: ""A more reliable approach is a tuner in your shack. The extra coax cable loss from elevated VSWR is insignificant on topband.""
We don't really have enough information to make that claim. First, you ought to get a copy of Radio-Electronic Transmission Fundamentals by B. Whitfield Griffith, Jr. It is a standard college textbook for EE students interested in broadcast engineering and focuses mostly on medium wave and is easy to understand. We shouldn't advise you to put a matching network at the transmitter end of your line until you tell us what sort of feedline you are using, how long it will be, and what your transmitter power to the line will be. The wrong line with too much power over enough fraction of a wavelength, with a high vswr, could cause a dielectric breakdown. There's more to this than loss. 73 Rob K5UJ _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector