If you¡¯re getting over 12 watts to the antenna you are already over driving the radio. The LP-100a should be more accurate than the meter on the TX-500. Might want to check the ALC to make sure you¡¯re not distorting your signal.
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On Thu, Jun 10, 2021 at 17:23, KC9WIB - Marc via groups.io <
marc.rosen@...> wrote:
I see 27.8w from the battery ( powerwerx meter) and 12.1w to the antenna with SWR of 1.36 measured on an LP-100A, there is an elecraft T1 tuner in between the radio and the antenna- 40m inverted V dipole