Radio 3rd channel question
 

On a 3 channel pistol grip radio. Can a speed controller be plugged into the 3rd channel to run and adjust the speed of another much smaller motor, not to propell the boat, but to run a smallaccessory. Thanks, Phil</p>

RE: Radio 3rd channel question
 

You will only have one speed,3rd channel is just off or on...

RE: Radio 3rd channel question
 

Plug a servo in.  Work whatever the TX has to operate the channel.  Observe the servo.  Does it just have 2 positions or can it be stopped in any position?  An ESC will follow the same behaviour.  If proportional. the ESC will work as required.  If just 2 positions, you get 2 speeds, one might be stopped, it might be anything else.

RE: Radio 3rd channel question
 

I was thinking the 3rd or more channels were just an on/off switch that could also use a servo. I would like to plug in a small esc into the 3rd channel. It would be nice to have a 3rd channel proportional knob to adjust speed on an esc.

RE: Radio 3rd channel question
 

hello if you look at the third channel control on your transmitter and its just a switch/toggle which has two posistions then you will only have either on or off if it is qiute a good transmitter you might be able to set end points for that channel but that is all. this type of (on/off) channel is common on aircraft radio systems because it can be used for the likes of the landing gear which you would only want either up or down nothing in between.
hope this helps 
 
regards jordan