OpenFHSS is a community-based effort that includes schematic, eagle design files, BOM, gerbers, and firmware for a 902-928MHz ISM, 50-channel, FHSS frequency hopping spread spectrum modem.
UPDATE 2011-11-27:
The discussion forum is open to new users (OpenFHSS Website->forum)

Features

  • High Performance, Long-Range Frequency Hopping Spread Spectrum Modem
  • Synchronous, Multi-Hop Repeater Chains
  • Ethernet Bridge Mode
  • Automatic, over-the-air firmware updates. Master updates all slaves simultaneously
  • 4uA MCU initiated sleep current
  • 2ppm stability for frequency and system timing reference.
  • Industrial quality enclosure, connectors
  • Real-Time Data Collection System with user defined scripts
  • LM3S6965 32-Bit Stellaris ARM-core MCU, CC1101 transceiver, CC1190 LNA/PA
  • Highly immune to multipath fading, interference
  • 5mS Channel Dwell Time
  • -107dBm sensitivity, 27.1dBm output power enables communications range in tens of kilometers. Depending on installation, ranges of >50km are easy to achieve
  • Applications include battery-powered data collection, Low-Latency Telemetry Links (UAVs), long-range internet communications. Quality Skype phone calls have been achieved with point-to-points links.
  • 230 kbps RF Data Rate
  • very low phase noise performance (see emc plots in images/emc_testing)

Project Samples

Network Topology Diagram VikingXE VikingXE PCBA

Project Activity

See All Activity >

License

BSD License

Follow OpenFHSS

OpenFHSS Web Site

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Additional Project Details

Intended Audience

Engineering, Telecommunications Industry

Programming Language

C

Registered

2011-03-16
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