Radiomaster R81 Nano receiver 2.4GHz 8CH SBUS FrSky D8

Description

Radiomaster R81 Nano receiver is a great choice for FPV drones/race quads. It is a light weight full range 8CH 2.4GHz receiver, compatible with FrSky D8 protocol and supports RSSI signal strength on channel 9.

* Only for Multi-protocol radios. Doesn’t support Frsky transmitters.

Specifications

Channels: 8 for functions 1 for RSSI strength
Frequency range: 2400-2483.5Mhz
Power input range: 4.5-6V
Signal format: D8
Output format: SBUS
Support return: support return RSSI
Control distance: more than 1km
Antenna length: Approximaltly 6cm
Size: 17x11mm
Weight: 2grams

RSSI output

This receiver has a total of 9 SBUS channels (Sbus has 8 control channels + 1 RSSI channel). Channels 1-8 are controlled by the remote controller, the 9th channel is the signal strength RSSI value output by the receiver, which can be read by various flight controllers and sent to the OSD to Show signal strength in the
FPV video feed.

Includes

• R81 Nano Receiver with 2 antennae
• Servo connector cable
• Heat shrink sleeve for receiver
• Instruction sheet

Downloads

• User Manual

Channel Map

Please use the following channel map for M1/M2 helicopter on EdgeTX/OpenTX

1. Aileron
2. Elevator [Inverted]
3. Throttle [Inverted]
4. Rudder
5. Stability mode (ON/OFF) [Inverted]
6. Collective Pitch