Hi,

I have a question. Say i bought a 4ch futaba radio. Can you set up the radio to run on any voltage? like say i wanted the motor to run on 7.8 volts an the battery for the whole radio was 8 votls. Or is the radio rated for its own voltage.

The transmitter has its own battery (usually 9.6 Volts), as well as the receiver (usually 4.8V). The battery connecting the receiver also powers the servos. The drive motors' voltage is usually independent from the whole RC system because the drive battery plugs into the ESC.

OH, i see, now what if you wanted to hook a stronger battery. Could you still use hte same rx?

It's not recommended to change the battery setup of the Transmitter/Rx as both are tuned to the same frequency, increasing the voltage could lead to overcharging the circuit boards and causing a burnout. However, you can change the drive motor's battery to whatever voltage you like, just as long as you respect the voltage range of the ESC (Yes, they do burnout too!)

Oh ok.. so i can change the voltage to the engine. can i run 2 batteries? lIke a 9.6 volt for the motor and 8.4 volts for hte rx and still use one rx?

GreenAce92,
The receiver's battery should stay below about 7 - 8 volts, 6 volts is the common voltage for larger receiver batteries. That's also the voltage that most receivers and servos are rated for. That's only talking about voltage, not battery current storage capacity. Higher current value batteries are certainly usable for longer periods of time. Then again batteries with higher current capacities are usually heavier and larger in size. If those things aren't a problem then they make sense. If you can't squeeze them into the hull, well, you see where that's going, right?
- 'Doc

Right i see. Well are the radios programmed already to be proportional? Or can you program them your self?

They are all proportional, look for "computer" radios which are fully programmable (meaning you can combine functions, adjust servo settings, etc).

The programs programmed can be reprogrammed right if you messed up.

Of course!

Cool. Wow i wonder how people were able to accomplish tasks with basic comps back then makes ya wonder[sm=71_71.gif]