Ok. I tested with a 50 Ohm dummy load and dead key swr's are 1 for channels 1 and 40 on my Dosy TC3001P. I checked both ends of my 50 ft - RG8X coax with the other end attached to my 50 Ohm dummy load. The Ohms were slightly over 51 Ohms(+ a few thousandths). So I disassembled my antenna and inspected and cleaned all components. I found my ground plane radial end connectors are corroded where they attach to the radial wire ends( I have issues with metals corroding around my house due to salt spray emanating from near by state road). My antenna set up is a 102" stainless steel whip elevated to 10ft, with two 10 ga. coated copper wire radials cut to 102", each set at about 37°. This antenna set up originally tested 7 yrs ago at just over 51 Ohms. And I was able to tx and dx during skip to California, Main, Virgin Island, Puerto Rico... And normally I can clearly converse with locals up to 40 miles away. Even with using a 50 Ohm dummy load, attempting to adjust the Dosy TP3001P is like trying to catch a kids balloon on a gusty/windy day. I intend to contact Dosy for re-calibration of this meter. I will be replacing the ground plane radials and retesting tomorrow. I will post the results of the new ground plane wires/connectors once they are installed.
Thank you,
jimbowilly