I mounted a 3 amp rf thermocouple meter in a 4" electrical conduit box on a cover used for 240 volts round outlet by enlarging the round hole. The UHF chassis connectors are mounted to go through the back of the box, bolted fast and connected directly to the meter terminals with the shortest leads. Tested into a flat 50.8 ohm non inductive dummy load compensated for a flat match to 500 Mhz according to the analyzer. Antenna analyzer shows a flat match through the meter assembly to beyond 6 meters before the match goes up and is still useful at 150 MHz. I might even be able to do some compensation in this meter assembly to push it higher. Hand capacity changes at the meter face is very low when testing with the analyzer and no effect with power testing.. We don't normally have a hand on the meter during use. No reaction to hand on metal case housing during power testing.. Power tested with rf at 100 watts 160m to 6m shows 1.3 to 1.4 amps depending on the radio's output on each band.. 1.4 sqed x 50.8 = 99.6 watts. The SWR in the radio remains flat on all bands. I have tested with a Bird 43 in line and they are very close. I believe this is as good as it gets without issues and becomes a useful tool. Did I just get lucky? Next tests will be to see what happens on the output of an amplifier driven to about 400 watts used to peak tune RF current, as a tuning aid, then the effects of a tuner in line to the antenna at about 2.8 amps. I realize there may be effects from the jumper cables and the tuner internals and take that into consideration for the results..