My radio manual says its current draw is 22A. But in my naivety I would have calculated as follows:
If the radio 'put out' 100W and I have a 13.8V supply then (using the formula power = VxI) 100W/13.8V = 7.2A.
So, it looks that I'm way out (comparing 22A with 7.2A). Is my transceiver terribly inefficient or is this normal?