Holybro P900 P840 Microhard Telemetry Radio – 60KM 100KM Long Range Telemetry


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Holybro Microhard Radio integrates microhard Pico Series RF module which is capable of delivering high-performance wireless serial communications in robust topologies, such as Point to Point, Point to Multipoint and secure Mesh (Mesh not available on P840).

It uses frequency hopping spread spectrum (FHSS) technology, providing reliable wireless asynchronous data transfer between most equipment types which employ a serial interface. Fixed frequency is available on the P840 version. The radio is configured using AT commands through the Data port or using PicoConfig application through the Diagnostic Port.

P900 Radio operate within the 902-928 MHz ISM frequency band while the P840 Radio operate within the 840-840Mhz. You can select your radio based on your country’s available frequency band.

FCC ID :NS913P900


  • USB Type-C port, integrated USB to UART converter
  • 6-position JST-GH connector,¬†can be directly connected to the TELEM port on various flight controller
  • High voltage BEC onboard, Support DC7~35V voltage supply
  • UART¬†transmission LED indicator
  • Three-stage RSSI¬†LED indicator¬†¬†
  • Transmission within a public, license-exempt band of the radio spectrum
  • Transparent, low latency link rates up to 276 kbps
  • Supports a robust true Mesh operation with auto-routing
  • 32 bits of CRC, selectable retransmission and forward error correction
  • Separate diagnostics port, transparent remote diagnostics and online network control


  P900 P840
Frequency Range 902 to 928 MHz 840 to 845 MHz
Transmit Power (Software Adjustable) 100mW to 1W (20-30dBm)
Link Rate Up to 276 kbps Up to 345 kbps
Serial Baud Rate Up to 230.4kbps asynchronous 300 bps to 230 kbps
Range Up to 40 miles (60km) Up to 60 miles (100 km)
Spreading Method Frequency Hopping Spread Spectrum (FHSS) Frequency Hopping/Fixed Frequency,
Operating Modes Mesh, Point-to-Point, Point-to-Multipoint, Store and Forward,
Auto Routing, Self Healing, Packet Routing Modes
Point-to-Point, Point-to-Multipoint,
store & Forward Repeater, Peer-to-Peer
Input Voltage DC7~35V
(4-position JST-GH)
Power Consumption Sleep < 1mA, Idle 3.5mA
Rx: 45mA to 98mA, Tx : 1000mA to 1400mA
Weight 42g (without antenna) & 69g (with antenna)
Error Detection 32 bits of CRC, ARQ

Other Technical details and download can be found in Holybro Documentation page.

Package Includes:

SKU17024 Microhard P840 Radio (1pc) or SKU17019 Microhard P900 Radio (1pc)
  • 1x¬† Microhard P840/P900 Radio
  • 1x¬†¬†Antenna
  • 1x¬† XT30 Power cable
  • 1x¬† GH 6P to 6P cable¬†
  • 1x¬†¬†Metal¬†Pin

SKU17025 Microhard P840 Radio (1pair) or SKU17020 Microhard P900 Radio (1pair)
  • 2x¬† Microhard P840/P900 Radio
  • 2x¬†¬†Antenna
  • 2x¬† XT30 Power cable
  • 1x¬† GH 6P to 6P cable¬†
  • 1x¬†¬†Metal¬†Pin

Additional information


P840, P900


One Radio, One Pair (Two Radios)


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