Activity on the frequencies listed below is limited to the description that accompanies it. Any other usage is "TABOO." This is known within the DoD community as the "TABOO" frequency list.
Frequency (kHz)
490.0 GMDSS/METEOROLOGY AND NAVIGATION WARNINGS
500.0 GMDSS/DISTRESS AND CALLING
518.0 GMDSS/NAVTEX/METEOROLOGY AND NAVIGATION WARNINGS
2174.5 INTERNATIONAL DISTRESS/SAFETY
2182.0 INTERNATIONAL DISTRESS
2187.5 INTERNATIONAL DISTRESS/SAFETY
3023.0 INTERNATIONAL SEARCH AND ESCUE
4125.0 INTERNATIONAL DISTRESS AND SAFETY
4177.5 INTERNATIONAL DISTRESS/SAFETY
4207.5 INTERNATIONAL DISTRESS/SAFETY
4209.5 GMDSS/NAVTEX METEOROLOGY AND NAVIGATION WARNINGS
4210.0 INTERNATIONAL MARITIME NAVIGATION SAFETY
5680.0 INTERNATIONAL SEARCH AND RESCUE
6215.0 INTERNATIONAL DISTRESS AND SAFETY
6268.0 INTERNATIONAL DISTRESS/SAFETY
6312.0 INTERNATIONAL DISTRESS/SAFETY
6314.0 INTERNATIONAL MARITIME SAFETY/GMDSS
8291.0 INTERNATIONAL DISTRESS/SAFETY
8364.0 INTERNATIONAL SEARCH AND RESCUE/SURVIVAL CRAFT
8376.5 INTERNATIONAL DISTRESS/SAFETY
8414.5 INTERNATIONAL DISTRESS/SAFETY
8416.5 GMDSS/INTERNATIONAL MARITIME SAFETY
12290.0 INTERNATIONAL DISTRESS/SAFETY
12520.0 INTERNATIONAL DISTRESS/SAFETY
12577.0 INTERNATIONAL DISTRESS/SAFETY
12579.0 GMDSS/INTERNATIONAL NAVIGATION SAFETY
16420.0 INTERNATIONAL DISTRESS/SAFETY
16695.0 INTERNATIONAL DISTRESS/SAFETY
16804.5 INTL DISTRESS/SAFETY
16806.5 GMDSS/INTERNATIONAL MARITIME SAFETY
19680.5 GMDSS/INTERNATIONAL MARITIME SAFETY
22376.0 GMDSS/INTERNATIONAL MARITIME SAFETY
26100.5 GMDSS/INTERNATIONAL MARITIME SAFETY
Frequency (MHz)
121.500 INTERNATIONAL DISTRESS/AERONAUTICAL EMERGENCY
123.100 INTERNATIONAL EMERGENCY/SEARCH AND RESCUE
156.300 INTERNATIONAL SHIP/AIRCRAFT SEARCH AND RESCUE
156.525 INTERNATIONAL DISTRESS/SAFETY/GMDSS
156.650 INTERNATIONAL SAFETY OF NAVIGATION
156.800 INTERNATIONAL DISTRESS AND SAFETY
243.000 AERO EMERGENCY/INTERNATIONAL DISTRESS/SEARCH AND RESCUE
406.050 SATELLITE EPIRB
1227.600 SATELLITE GPS DOWNLINK
1544.500 SATELLITE EPIRB FEEDER LINKS
1575.420 SATELLITE GPS DOWNLINK
1646.000 SATELLITE EPIRB