JP 3-50 National Search and Rescue Manual Vol I - US Navy

developed specifically for satellite detection and for position accuracy
of less than 4 miles. EPIRB/ELT signals picked up by satellite are
retransmitted to ground receiving stations called Local User Terminals
(LUTs). Coverage on 121.5/243.0 Mhz requires line of sight for the
EPIRB/ELT, the satellite, and the LUT. A SARSAT position should be
available approximately every hour because of the existence of multiple
satellites. The 406 MHz beacon will incorporate information storage so
that line-of-sight mutual visibility is not needed with all three
segments to determine a position. The SARSAT Mission Control Center
(MCC) in the United States provides SARSAT position information to
appropriate RCCs and exchanges data with similar MCCs in other
countries.
J. Foreign SAR authorities exist in many nations. Some are
similar to the Coast Guard and the 23rd Air Force/USAF Aerospace Rescue
and Recovery Service (ARRS) and specialize in SAR services. Others
depend on military operational units, or on operational units of the
civil branches of the government and volunteer groups. Most, like
Canada, are a combination.
K. International Radio-Medical Center (CIRM), a humanitarian
organization based in Rome, Italy, provides medical advice and assists
in arranging the evacuation of injured or seriously ill merchant seamen
from vessels worldwide. It covers areas where no other medical advice
facilities are available. Coast Guard coastal radio stations relay CIRM
traffic at no cost, as do many foreign radio stations. CIRM uses
certain documents:
1. Radio-Medical Assistance, Vol. I - Code Book, creates five
letter code groups for medical
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