Radio Telemetry Kit 915Mhz 5dB Antennas Micro USB OTG cable
by Drotek

Description

The Drotek telemetry system base on 3DR Radio system and 100% compatible. It's designed as an open source Xbee replacement radio set, offering a lower price, longer range and superior performance.

The 915MHz is available in the following configurations:  serial board (for the air) and USB (for the ground). The system provides a full-duplex link  using HopeRF's HM-TRP modules running custom, open source firmware.  Interface to the module is via standard 5V-tolerant TTL serial / FTDI USB serial. 

Firmware upgrades and configuration are fully supported in the APM Mission Planner. Configuration is also possible through the 3DR Radio configurator and AT commands.

Radio Telemtry Kit Features

• Small size and light weight
• 915MHz
• Receiver sensitivity to -121 dBm
• Transmit power up to 20dBm (100mW)
• Transparent serial link
• Air data rates up to 250kbps
• MAVLink protocol framing and status reporting
• Frequency hopping spread spectrum (FHSS)
• Adaptive time division multiplexing (TDM)
• Configurable duty cycle
• Built in error correcting code (can correct up to 25% data bit errors)
• Demonstrated range of several kilometers with a small omni antenna
• Can be used with a bi-directional amplifier for even more range
• Open source firmware
• AT commands for radio configuration
• RT commands for remote radio configuration
• Based on the HopeRF HM-TRP radio module, with an SiLabs Si1000 RF microcontroller
• Transmit current: 100 mA at 20 dBm
• Receiver current: 25 mA

Board Features

• Supply voltage: 3.3-5 VDC 
• Serial interface: 3.3 V UART
• JST-GH connector
• Micro USB port
• SMA connector
• Weight: 6g
• 17 mm x 52 mm 

Package Includes 

• Telemetry module x2
• JST-GH 6Pin cable x2
• 5dB 915MHz Antenna x2
• Micro USB OTG cable x1