Processing: 100 mW maximum output power (adjustable) -117 dBm receive sensitivity Open-source SIK firmware RP-SMA connector 2-way full-duplex communication through adaptive TDM UART interface Transparent serial link MAVLink protocol framing Frequency Hopping Spread Spectrum (FHSS) Configurable duty cycle Error correction corrects up to 25% of bit errors Open-source SIK firmware Configurable through Mission Planner & APM Planner FT230X is a USB to BASIC UART IC
Features Interchangeable air and ground modules 915 or 433 mHz Micro-USB port 4-position JST-GH connector
Status LEDs The radios have 2 status LEDs, one red and one green. The meaning of the different LED states is: Green LED blinking - searching for another radio Green LED solid - link is established with another radio Red LED flashing - transmitting data Red LED solid - in firmware update mode
Connecting to Pixhawk4 Use the 4 pin JST-GH connector that should have come with the radio to connect the radio to your Pixhawk4’s “Telem 1” (“Telem 2” can also be used but the default recommendation is “Telem1”).
Connecting to a PC Connecting the radio to your Windows PC is as simple as connecting the micro USB cable (which should have been included with the radio) to your PC. The necessary drivers should be installed automatically and the radio will appear as a new “USB Serial Port” in the Windows Device Manager under Ports (COM & LPT). The Mission Planner’s COM Port selection drop-down should also contain the same new COM port.
HolyBro 100mW 915Mhz Telemetry Radio - V3
Dimensions: 26 x 53 x 10.7mm (without antenna) Power Supply voltage: 5VDC (from USB or JST-GH) Transmit current: 100 mA at 20dBm Receive current: 25 mA Serial interface: 3.3 V UART
Includes: 2 x data radios 2 x antennas 2 x conversion connectors 2 x 6-pin to 4-pin cables 1 x Micro USB cable 1 x OTG cable
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