Yeah, the wonderful manual buries this info on p54, right-hand column. It's not given in the specifications, nor is the amount of power draw given anywhere I can find. My guess is that it's only an amp or so, but I've never measured it on the 802. Maybe Eric has???
Iv'e never actually measured the current draw with the radio off. I would give it a guess of around 200 milliamps. I would like to check that but won't be able to get to it til Tuesday.