San Francisco Vessel Traffic System Test of the AN/FPS-109 (XN-1) Vessel Traffic System Manual Radar
Test results rept. 2 Mar-30 Apr 1973
JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB
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The report presents the results of engineering tests made on the U.S. Coast Guard Vessel Traffic System VTS radars, the ANFPS-109 XN-1, which are installed at Yerba Buena Island YBI in the San Francisco Bay and at Point Bonita PTB overlooking the seaward approach to the Bay. Two types of tests were conducted. The first type consisted of measurements of antenna beam patterns of the YBI antenna, radiated power, transmitter and receiver characteristics, display characteristics, and PTBYBI data link performance. The second type of tests was concerned with performance measurements and included maximum detection range in clear and clutter environments, coverage as a function of elevation angle, realizable range and angle resolution, and the utility of the various radar and display operating modes.
- Active and Passive Radar Detection and Equipment