Product Review

Holybro 500mW Telemetry Radio Set (V3 for Pixhawk4)
915MHz

Features:
Transparent, full-duplex serial com-link
Hardware flow control
Open-source firmware
Frequency Hopping Spread Spectrum (FHSS) Protocol
Communicates with any 3DR/SiK telemetry radio
Pixhawk not required - Easily adaptable to your other projects.


Specifications:
Radio Frequency: 915MHz
Output Power: 20 levels, up to 500mW (27dBm)
Size: 53x26x11mm (no antenna)
Weight: 14g (no antenna)
Rx Sensitivity: -117 dBm
Operating range: -40 to 85°C
Power Input: 5VDC (via micro-USB or JST-GH)
Current, Tx: 500mA @ 27dBm
Current, Rx: 25mA
Serial (UART) Level: 3.3V
Windows USB Device Driver: FT230X Chip
Antenna Connector: RP-SMA


Status LEDs:
Green, blinking: searching for signal
Green, steady: link established
Red, blinking: transmitting
Red, steady: firmware updating
No Light: No Power

Use Mission Planner, or any Terminal Emulator (AT/RT command set), to change available settings:
output power, duty cycle, frequency range, number of channels, listen before Tx, error correction, opportunistic resend, link ID, air speed, MAVLink framing, etc.


What's in the box?
2x Radio Modules (interchangeable)
2x RP-SMA Monopole Antennas
2x 90° RP-SMA Antenna Connectors
Micro-USB cable
Android OTG cable
JST-GH 6P to 6P cable for 2nd generation and later Pixhawk
MLX 6P to JST-GH 6P cable for original Pixhawk
2x Adhesive pads