Information Station Specialists is the best known source of traveler's information stations, highway advisory radio, advisory signs and services needed to reach motorists. Learn more about Information Station Specialists.
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Audio Distribution to Synchronized Radio Stations
Wireless Audio Link Antenna
Wireless Audio Link Transmitting Antenna
Audio distribution to satellite Information Radio Stations may be accomplished over leased telephone lines, fiber optics or our Wireless Audio LinkTM System. Each of these methods uses continuously available links to distribute the audio in real time, guaranteeing that all stations are broadcasting current message content.
Wireless Audio Link (WAL) System

* The Wireless Audio Link (WAL) System, which offers the following advantages:

  • Fully under your ownership and control.
  • No monthly cost to operate.
  • Excellent signal quality.
  • Unaffected by power outages when generators or battery backups are present at the satellite radio locations.
  • Unaffected by weather disruption that can affect phone and fiber lines.
  • Licensed, protected VHF frequencies.

The standard package includes . . .

  • Wireless Audio Link transmitters and receivers.
  • Antennas and mounts.
  • Diagnostic metering.
  • Cable, arrestors & converters.
  • Propagation study.
  • FCC license.

Options include . . .

  • Antenna tower and support poles.
  • Tower-climbing labor.
Corner, Reflector Antenna on Tower

Corner Reflector-Style Antenna
with Tower Mount


The Wireless Audio Link system is analog based and does not depend on digital or IP-based equipment to function.

If satellite stations are fewer than 15 miles apart, we recommend GPS Frequency Stabilization to prevent inter-station interference (heterodyne).

Wireless Audio Link range is up to 20 miles, quasi-line-of-sight. Low VHF operating frequencies will accommodate some terrain and foliage.
Audio Distribution to Satellite Stations Sample Setup
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