I have used many RC receivers over the years but I just bought my first new system in many years. The receiver has no power input of any kind. Do I just apply power to one of the servo outputs? They are labeled +- and signal. Weird...New one on me.

Yeah.. you can do that. There are some that are not labled as such. The power input on the DX7 receiver is. But, on all RX's, the power + and - are all "linked" or bussed together so that the power applied to one applies power to them all (servos) including, of course, the RX.

Just make sure you get the signal connection to the signal pin for the servos and don't get the battery backwards and apply the power to the signal pins, it won't work that way. Airtronics color codes their signal pin blue, where JR does in orange. I thing Futaba is white. The normal red is battery + and the black is battery -. For JR, the battery - is brown and the battery + is yellow, I believe.

Also, if you run out of servo output jacks, you can just add a Y harness to any one of them and tie the battery in that way. A lot of cheap 4 channel RX's only have four connections, so you have no choice but to add a Y harness if you want more than 3 channels.

Thanks!......

[&o]

What voltage?

GBGB

Depends on the RX. Some are ONLY 4.8 (all, from what I understand are 4.8) where others can handle both 4.8 and 6 volt packs. Check with the specs of the RX before using a 6 volt pack.

Thanks for adding that, Mclina.. I forgot about the Y harness.

CGr

It's odd but my instructions do not even mention anything anout power to the receiver. That's why I needed to ask....

JR wire colors are Brown = negative, Red = positive, Orange = signal.

4.8 volts is a safe bet unless you are installing this in an electric airplane?
In that case the battery plugs into the ESC and then the ESC plugs into the reciever.

Missleman asked the question that was going through my mind.

Is this an electric airplane? If so, the Motor battery will power the Rx through the ESC