USCG to Install Radio-Activated Sound Signals in CT & LI (Video)

Coast Guard Sector Long Island Sound will be replacing traditional sound signals (foghorns) with marine radio-activated sound signals at eight different locations across Connecticut and three locations on Long Island.

Mariners that require the use of sound signals during periods of reduced visibility will be able to activate them on demand by momentarily turning their VHF-FM radio to channel 83A/157.175Mhz and key their microphone five times consecutively.

This will activate the sound signal for up to 60 minutes.

The current sound signal type and characteristic will not change due to this conversion.

All light characteristics, equipment and patterns will also remain unchanged.

Affected signals:

  • Southwest Ledge Light, light number 21210
  • Greens Ledge Light, light number 21340
  • New London Ledge Light, light number 21825
  • Great Captain Island light, light number 21400
  • Penfield Reef Light, light number 21290
  • Saybrook Breakwater Light, light number 21115
  • North Dumpling Light, light number 20145
  • Race Rock Light, light number 19815
  • Montauk Point Light, light number 660
  • Huntington Harbor Light, light number 26530
  • Orient Point Light, light number 21095

To provide mariners with a clear, comprehensive explanation of the new Marine Radio-Activated Sound Signals (MRASS) sound signals, a short explanatory YouTube video is available below.

(VM-100 / MRASS Fog signal comparison. Courtesy of Elijah Reynolds and YouTube)

If you would like additional information, contact Lt.j.g. Shannon Andrew at 203-468-4432.