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This radio modem module is the ideal solution for long range (>40km) telemetry or communications. RFD900 has a low pass filter transmitter with 1Watt of power with a low noise amplifier (>20dB). This small and light-weight radio module has a passive front end band pass filter and, is compatible with 3DR / Hope-RF radio modules with license-free use in Australia, Canada, USA, and NZ.


  • RFD900 Radio Modem Module
  • RF : 2 x RP-SMA connectors
  • Serial: Logic level RS232 (+3.3v nominal, +5v tolerant)
  • GPIO: 6 General purpose IO (Digital, ADC, PWM capable)
  • Power: +5v, ~800mA max peak (at maximum transmit power)
  • Frequency Range: 902 – 928 MHz (USA) / 915 – 928 MHz (Australia)
  • Output Power: 1W (+30dBm), controllable in 1dB steps ( +/- 1dB @=20dBm typical )
  • Air Data transfer rates: 4, 8, 16, 19, 24, 32, 48, 64, 96, 128, 192 and 250 kbit/sec ( User selectable, 64k default )
  • UART data transfer rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200 baud ( User selectable, 57600 default )
  • Receive Sensitivity: >121 dBm at low data rates, high data rates (TBA)
  • Frequency hopping spread spectrum (FHSS)
  • Transparent serial link
  • Configuration by simple AT commands for local radio, RT commands for remote radio
  • User configurable serial data rates and air datarates
  • Error correction routines, Mavlink protocol framing (user selectable)
  • Mavlink radio status reporting (Local RSSI, Remote RSSI, Local Noise, Remote Noise)
  • Automatic antenna diversity switching on a packet basis in realtime
  • Automatic duty cycle throttling based on radio temperature to avoid overheating
  • Temperature Range: -40° to +85°C 

User Manual / Datasheet

Weight0.1 kg
Dimensions6 × 5 × 2 cm

RFD900+ Modem

A$99.50 ex. GST

Availability: In stock (can be backordered)

Warranty: 1 Year

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