Hi ,
I have HS-7965 for throttle , HS-7985 for steering and Airtronic 92324 as a reciever. I am using 4 duracell batteries for power. When use throttle and steering together , the reciever cuts the signal and passes to fail safe mode but when i use steering or throttle separately nothing happens. The servos working normal. Why does this happen. If you help i'll be glad.

Your battery cannot supply enough power to two high torque servos which is why it cuts out. You will need to upgrade to a rechargable NiMh battery of more than 1000mah capacity to keep enough power to run your setup.

Hello ,

According to your answer , i changed the batteries with 2600mah GP rechargable and tried again but the same thing happened. Now what can i do ?

thanks

Are you using 4 batteries or 5 batteries?

you need a 6V minimum to run 2 digital servos like that, better yet, get a 7.4 volt lipo and a voltage regulator to drop it from 7.4 to 6V. This should cure your problem, if it doesn't, then its your RX.

The things that has been told was true. Now i'am using 6v 5cell block batteries and everything is working well. Thaks for all the people that want to help.