Radiomaster R81 – D8 Nano Sbus Receiver


This is a nano sized 8 channel Sbus receiver from Radiomaster. It is compatible with Frsky D8 firmware

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Channels: 8
Frequency range: 2400-2483.5Mhz
Power input range: 4.5-6V
Signal format: Frsky D8 Compatible
Output format: SBUS
RSSI: RSSI on Ch9 of Sbus Output
Range: more than 1km
Antenna length: Approximately 6cm
Size: 17x11mm
Weight: 2 grams

Bind method:

1. Press and hold the BIND button on the receiver then connect power. After approximately 3 seconds, the receiver LED will be RED, the receiver is now in bind mode

2. Select the D8 protocol for the multi-protocol menu of your remote control, and press the [BIND] option, the red light of the receiver will flash indicating successful bind

3. Exit bind mode on your remote control and disconnect power to the receiver then power the receiver once more. The LED will now be solid RED indicated the bind is now done. If not please repeat step 1 and 2

Fail-safe Protection:

1. Press the BIND button once within 10 seconds of th eceiver being powered on, and the receiver will save all the current channel values of the remote control as the fail-safe value

2. 10 seconds after the receiver is powered on, the BIND button function will be disabled to prevent accidental changes to to the fail-safe settings while preparing the model for flight

RSSI output:

This receiver has a total of 9 channels. 8 channels + an RSSI output channel.

Channels 1-8 are controlled by the remote controller, the 9th channel is the signal strength RSSI value output by the receiver itself, which can be read by the flight controller and sent to the OSD device Show signal strength.


Additional information



7 reviews for Radiomaster R81 – D8 Nano Sbus Receiver

  1. 5 out of 5

    Kim B. (verified owner)

  2. 5 out of 5

    Jörgen I. (verified owner)

    It worked fine.

  3. 5 out of 5

    Mattias (verified owner)

    Billig och bra.

  4. 5 out of 5

    Jimmy Söderberg (verified owner)

    Fantastiskt prestanda för det här löjligt låga priset! Kommer köpa flera st

  5. 5 out of 5

    Lars (verified owner)

  6. 5 out of 5

    Peter K. (verified owner)

  7. 5 out of 5

    EVERT P. (verified owner)

    Fast delivery and good price.
    The receiver works well with my quad.

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