OFA™ – On Frequency Amplifier System Clear Signals. All the time.

Even in the longest tunnels and deepest passes, Tunnel Radio provides seamless coverage with OFA, our On Frequency Amplifier System. Similar to Tunnel Link™, OFA is an extension for GE LOCOTROL® Distributed Power and for Positive Train Control systems.

OFA connects to existing base sites wirelessly, with adjustable frequencies. It’s compatible with Tunnel Link and Tunnel Voice FD4, and it can run on solar power if a wired power source is unavailable.

Features and Benefits

  • Flexible frequency band from 160 MHz to 800 MHz
  • Distributed power capable
  • Low component count
  • Compatible with Tunnel Link
  • Solar-powered version

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.



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