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3DR Radio USB-915 Mhz "Ground" module (US)

3DR Radio USB-915 Mhz "Ground" module (US)
$35.99

The 3DR Radio USB unit is part of the new telemetry system offered by 3D Robotics
SKU BR-3DRUSB915
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The 3DR Radio USB unit is part of the new telemetry system offered by 3D Robotics; it would work in conjunction with the "Air" module offering a 2-way half duplex wireless communication system.  Its design is based off the HM-TRP modules from HopeRF along with a completely new firmware to optimize its performance, SiK.

 

Hardware features and specifications

  • Very small size
  • Light weight (under 4 grams without antenna)
  • Available in 900MHz or 433MHz variants
  • Receiver sensitivity to -121 dBm
  • Transmit power up to 20dBm (100mW)
  • Transparent serial link
  • Air data rates up to 250kbps
  • Range of approx 1 mile
  • MAVLink protocol framing and status reporting
  • Frequency hopping spread spectrum (FHSS)
  • Adaptive time division multiplexing (TDM)
  • Support for LBT and AFA
  • 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
  • Adaptive flow control when used with APM
  • Based on the HopeRF HM-TRP radio module, featuring an SiLabs Si1000 RF microcontroller.
 
Features
  • 'Air' and 'ground' variants, FTDI-style pinout and USB connector, respectively
  • 433 and 915MHz variants
  • RP-SMA connector
  • Maximum output power of 100mW (20dBm), adjustable between 1-20dBm
  • -117dBm sensitivity
  • Standard TTL UART interface
  • Data transmit and connection status LED indicators
  • Outperforms XBee modules in terms of range

 


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