1) Two external analog telemetry ports (A1&A2) and one digital data-stream port (Rx)
2) When side port pins of A1 and X are connected by the jumper, A1 will change from external analog telemetry port to internal built-in battery voltage sensor
3) Convenient to upgrade – no need to open the receiver’s case when upgrade D8R-II plus
4) Alarm warning on low voltage, poor reception, etc.
Operating Voltage Range
Number of Channels