Spektrum AR7200BX and AR7300BX firmware update Ar7200bx
Alot more adjustments than the BX but you can get an excellent tune only playing with control rates and bell gain. Control rate is your max throws, bell gain is Important: When using the AR7200BX with larger helicopters (500-size and larger): It is necessary that you connect a DSMX® remote receiver. This video shows the initialization of a Blade 450X AR7200BX Gyro. ...