RADCAT Case Directory
  Category 9, RADAR  
Rating: 5  


RADCAT is a revitalized special project now being conducted jointly by NICAP & Project 1947 with the help and cooperation of the original compiler of RADCAT, Martin Shough, to create a comprehensive listing of radar cases with detailed documentation from all previous catalogues, including UFOCAT and original RADCAT.

Ground Radar Track Reponds to IFF Mode 3
July 18, 1957
Mt. Lemmons, Arizona

Brad Sparks:
July 18, 1957; Mt. Lemmon, Ariz. (BBU)
10:46-11:20 p.m. (MST). USAF ADC radar station 684th ACWRON, Mt. Lemmon AFS, Senior Director Capt. Claiborne F. Bickham and crew using both MPS-7 L-band search and MPS-14 S-band height-finder radars tracked a stationary target at 42,000 ft to the NW at 308° azimuth 82 miles range (S of Chandler, Ariz.). Target responded to encrypted military IFF Mode 3 transponder signals, transmitted encrypted responses resulting in "normal Mode 3 paint" on radar scopes, and "a very slight strobe came from object appearing like ECM jamming." (Jan Aldrich) 34 mins

Detailed reports and documents
reports/570718MtLemmon_rep.htm (Dan Wilson)

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