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Search and Rescue (SAR)

NSSDCA ID: 1988-089A-04

Mission Name: NOAA 11
Principal Investigator:


The Search and Rescue (SAR) instruments have the capability of detecting and locating existing emergency transmitters in a manner independent of the environmental data. Data from the 121.5-MHz emergency locator transmitters (ELT), the 243-MHz emergency position indicating radio beacons (EPIRB), and experimental 406-MHz ELTs/EPIRBs are received by the search and rescue repeater (SARR) and broadcast in real time on an L-band frequency (1544.5 MHz). Real-time data are monitored by local user terminals operated in the United States, Canada, and France. The 406-MHz data are also processed by the search and rescue processor (SARP), and stored on the spacecraft for later transmittal to the NOAA Command and Data Acquisition (CDA) stations in Alaska and Virginia, thus providing full global coverage. The distress signals are forwarded to Mission Control Centers located in each country for subsequent relay to the appropriate Rescue Coordination Center.

Alternate Names

  • NOAA11/SAR
  • SAR


  • Engineering: None assigned

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Principal InvestigatorNOAA National Environmental Satellite, Data and Information Service
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