If I'm not mistaken the BC-939 antenna coupler used with > the BC-610 transmitter uses a 15 amp meter in the antenna output > circuitry and the BC-610 is capable of only 400 watts carrier.
Again it is still I squared R so at a TWO OHM load and 15 amps you would indeed have 450 watts. The way the BC-610 ran mobile is into a 15 foot whip so the resistance could be perhaps as low as 2 ohms, negelecting ground loss which is in series BUT the BC 610 is looking into a fifty ohm load into the tuner and the meter should be looking at the output. mike
