Best Answer dboomer , 01 August 2014 - 01:25 PM
It's marked right on the receiver right next to the power pin. I don't have one in front of me but I believe that it is 200ma @ 9Vdc.
Here's the deal. Often power supplies will sag even for a split second and only under the right conditions. That's why we only certify power supplies after a long QA process. The more units you have on the supply the more likely will come a time that you run low on current capacity. Now if at that moment you happen to light up an extra LED or two the tiny difference could send you into a temporary brown out. You'll get a drop out, not because the radio dropped out but rather because the power supply did. But it will feel like a radio drop. I'll bet this has happened a fair number of times and blame accessed to the wrong cause. Digital electronics will not give you any warning. If it were analog you would start to hear the sound deteriorating but digital will stay at 100% until it drops to zero.
So all of that said, when I plan systems I always like to be able to supply double what is called out for.Go to the full post