Holybro Microhard P900 V2 Long-Range Telemetry Radio

The Holybro Microhard P900 V2 is a long-range telemetry radio for ArduPilot and PX4 aircraft, built on Microhard's Pico Series RF module and operating in the 902–928 MHz band. It links the flight controller's TELEM port to a ground station for live telemetry, mission uploads and parameter changes, with transmit power adjustable in software from 100 mW to 1 W. It is available as a single radio or as a pair.

Key features

• True mesh networking with auto-routing and self-healing, alongside Point-to-Point, Point-to-Multipoint and Store and Forward modes, which suits multi-aircraft operations.

• FHSS link at up to 276 kbps with 32-bit CRC and ARQ retransmission.

• USB-C with a built-in USB-to-UART converter and a mode switch for setup through AT commands or PicoConfig, no extra adapter needed.

• 6-pin JST-GH lead plugs directly into a Pixhawk TELEM port.

• XT30 power input with an onboard high-voltage BEC accepting 7–35 V DC.

• LED indicators for UART traffic, three-stage RSSI and the diagnostic port.

Specifications

• Frequency: 902–928 MHz

• Transmit power: 100 mW–1 W (20–30 dBm), software adjustable

• Link rate: up to 276 kbps

• Sensitivity: -114 dBm at 57.6 kbps to -107 dBm at 230.4 kbps

• Input voltage: 7–35 V DC

• Current draw: 45–98 mA receive, 1.0–1.4 A transmit

• Antenna gain: 5 dBi

• Weight: 51 g without antenna, 81 g with antenna

A link needs one radio on the aircraft and one at the ground station: order the pair for a new setup, or a single radio to replace a unit or add a node to an existing mesh. Confirm the 902–928 MHz band is permitted for your operation before buying; the P400 V2 covers 410–480 MHz instead.