Half Moon Bay FAA Long-Range Radar

 military, radar station

Temporary data-tie site used when the AN/FPS-107 search radar was being replaced by the AN/FPS-66A at Mill Valley AFS, CA, 1981-1982.

Currently uses an ARSR-1E (Air Route Surveillance Radar Model 1E) which first saw use in 1958 and will be completely decommissioned by 2027.

The Air Route Surveillance Radar Model 1E (ARSR-1E) is based on a 1970s vintage radar that has been updated through Service Life Extension Program (SLEP). It is a long-range radar system with a maximum detection range of 200 nautical miles (nmi). The ARSR-1E is a surveillance system used to detect azimuth and slant range of en route aircraft operating between terminal areas. It also provides weather intensity data. ARSR-1 and ARSR-1D are similar configurations to the ARSR-1E. The ARSR-1E is interface to a collocated Common Digitizer Model 1/2 (CD-1/CD-2) or other digital processor which provides digitized output.

The ARSR-1E is integrated with a collocated ATCBI-6 or Mode S beacon to provide correlated target output data. Twenty-two ARSR-1E systems are collocated with ATCBI-6 and three are collocated with Mode S systems.

These are legacy FAA and DOD systems that are now owned by DOD. The FAA will participate in maintenance and staffing. These systems are likely to be replaced by DOD if decommissioned.

www.nas-architecture.faa.gov/nas/mechanism/mech_data.cf...