transmitter voltage and range

[derek owen]

does the voltage on a tx effect the range ? ie 7v compared to say 4.8v battery pack ! thanks

 

[Tom Foley]

From my experience as long as it does not fall below the minimum voltage it will provide range as designed , but what you are describing in voltage range is a receiver , not a transmitter . Transmitter voltage is 9.6 or better .

 

[Brandon Atwell]

No. The new Futaba’s operate at 6v I believe, compared to the old models running 11+. Performance is not harmed, just better battery tech

 

[Danny King]

From my experience as long as it does not fall below the minimum voltage it will provide range as designed , but what you are describing in voltage range is a receiver , not a transmitter . Transmitter voltage is 9.6 or better .

My Hitec comes with a 4.8 volt nmhd pack. But you can put other batts in it and select the setting.
Derek I don’t know for certain if it changes the range. I’d bet not. But I will be finding out.

 

[John Beardslee]

Most of my radios on 2.4 have a low voltage shutoff and beeper, the voltage may vary. My receivers have a low voltage cut off at 2 volts. In the early days of digital servos many people had brown out issues using old chemistry batteries.

 

[derek owen]

I wasnt concerned with a low voltage or shut off voltage, i didnt know if range on a 2.4 set up gradually reduces as volts drop ? but having read and listened to replies I believe the range is constant within say 3.5v -7v for example! cheers for replies ..

 

[John Beardslee]

I wasnt concerned with a low voltage or shut off voltage, i didnt know if range on a 2.4 set up gradually reduces as volts drop ? but having read and listened to replies I believe the range is constant within say 3.5v -7v for example! cheers for replies ..

Your range is limited by the receiver not the transmitter. The load on a transmitter is pretty constant compared to a receiver system where the load changes as you move servos.
Thanks John

 

[RaceMechaniX]

I would suspect that all modern radio's have a DC voltage regulator to protect their circuits and maintain a steady input voltage to the board so adding more voltage does nothing for boosting range.