[HOLYBRO] Microhard P900 Radio
BENEFITS
–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 such
as the pixhawk 4
–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
SPECIFICATIONS
Frequency Range | ISM 902 to 928 MHz |
Transmit Power (Software Selectable) | 100mW to 1W (20-30dBm) |
Band Segments | Selectable via Freq. Zones |
Link Rate | Up to 276kbps |
Serial Baud Rate | Up to 230.4kbps asynchronous |
| Low and middle data rate: 101; |
Sensitivity | Link Rate 10 ‾6 BER 10 ‾3 BER 57.6 kbps -111dBm -114dBm 115.2 kbps -110 dBm -113dBm 172 kbps -108dBm -111dBm 230 kbps -107dBm -110dBm 276 kbps -106dBm -109dBm |
Range | 40 miles (60km) |
Spreading Technology | Frequency Hopping Spread Spectrum (FHSS) |
Supported Network Topologies (Software Selectable ) | Coordinator, point-to-point, point-to-multipoint, mesh |
Error Detection | 32 bits of CRC, ARQ |
Data Encryption | 128, 196 or 256-bit AES Encryption (Requires export permit outside US and Canada.) |
Status LEDs
P900 Radio have 6 status LEDs, there are three blue, two orange and one green LEDs. The meaning of the different LEDs are:
Power LED(green)
This LED will illuminate when the P900 Radio is connected to a power source (7-35VDC).
TX LED (orange)
When illuminated, this LED indicates that the Radio is transmitting data over the air.
RX LED (orange)
This LED indicates that the Radio is synchronized and has received valid packets.
RSSI LEDs (3x Blue)
As the received signal strength increases, starting with the furthest left, the number of active RSSI LEDs increases. Signal strength is calculated based on the last four valid received packets with correct CRC. The value of RSSI is reported in S123
RSSI LEDs(blue) - indicate the receive signal strength.
Power Port
4-position JST-GH. The input Voltage range is 7-35 Vdc. The Radio is powered by the Power Port only. Please connect the power supply when in use and configuration.
Power Consumption
Supply voltage: DC7~35V from 4-position JST-GH
Transmit current: 200 mA/7V at 20dBm
350mA/7V at 27dBm
800 mA/7V at 30dBm
Receive current: 100 mA
Weight: 42g (without antenna)
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[HOLYBRO] Microhard P900 Radio
BENEFITS
–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 such
as the pixhawk 4
–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
SPECIFICATIONS
Frequency Range | ISM 902 to 928 MHz |
Transmit Power (Software Selectable) | 100mW to 1W (20-30dBm) |
Band Segments | Selectable via Freq. Zones |
Link Rate | Up to 276kbps |
Serial Baud Rate | Up to 230.4kbps asynchronous |
| Low and middle data rate: 101; |
Sensitivity | Link Rate 10 ‾6 BER 10 ‾3 BER 57.6 kbps -111dBm -114dBm 115.2 kbps -110 dBm -113dBm 172 kbps -108dBm -111dBm 230 kbps -107dBm -110dBm 276 kbps -106dBm -109dBm |
Range | 40 miles (60km) |
Spreading Technology | Frequency Hopping Spread Spectrum (FHSS) |
Supported Network Topologies (Software Selectable ) | Coordinator, point-to-point, point-to-multipoint, mesh |
Error Detection | 32 bits of CRC, ARQ |
Data Encryption | 128, 196 or 256-bit AES Encryption (Requires export permit outside US and Canada.) |
Status LEDs
P900 Radio have 6 status LEDs, there are three blue, two orange and one green LEDs. The meaning of the different LEDs are:
Power LED(green)
This LED will illuminate when the P900 Radio is connected to a power source (7-35VDC).
TX LED (orange)
When illuminated, this LED indicates that the Radio is transmitting data over the air.
RX LED (orange)
This LED indicates that the Radio is synchronized and has received valid packets.
RSSI LEDs (3x Blue)
As the received signal strength increases, starting with the furthest left, the number of active RSSI LEDs increases. Signal strength is calculated based on the last four valid received packets with correct CRC. The value of RSSI is reported in S123
RSSI LEDs(blue) - indicate the receive signal strength.
Power Port
4-position JST-GH. The input Voltage range is 7-35 Vdc. The Radio is powered by the Power Port only. Please connect the power supply when in use and configuration.
Power Consumption
Supply voltage: DC7~35V from 4-position JST-GH
Transmit current: 200 mA/7V at 20dBm
350mA/7V at 27dBm
800 mA/7V at 30dBm
Receive current: 100 mA
Weight: 42g (without antenna)
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