antenna-theory.com

[garyspang]

I would like to measure the power entering/leaving my antenna, at the antenna.

Available is a 100Mhz Techtronix digital oscilloscope, an RF current transformer mounted along with a resistive voltage divider in a small metal box.
The present system has a VSWR usually below 1.1 from 160 to 6 meters between the transceiver and the auto-tuner at the antenna on all the Amateur Radio HF bands. How this was achieved and verified experimentally is available upon request in the form of a two page article.
The RF power flow is from the ICOM-7100 transceiver at the driver position of our motor home, to 40 feet of 50 ohm coaxial transmission line, to a high resolution auto-tuner MFJ-939, then six inches of coax to an Auto-tuner Extender MFJ-914 with a 1:4 impedance setting, that feeds a 31foot Eagle One vertical antenna mounted on the ladder on the back of the motor home. Several ground straps go from the tuner extender and the auto tuner to the motor home's 30 ft steel chassis. Without the auto-tuner, 160 and 80 meters has such a severe VSWR, that the transceiver shuts down using its protective circuits.

The quandary:
In light of the initial sky high high VSWR at 160 and 80 meters, that has been totally eliminated as seen by the transceiver and coax feed line, with almost 99% of the real RF energy going into the auto-tuner (neglecting its losses), what happens to the power? Will it really now leave the antenna at 160 and 80m?