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2. Search and rescue transponder - Wikipedia

   en.wikipedia.org/wiki/Search_and_rescue_transponder

   A SART will only respond to a 9 GHz X-band (3 cm wavelength) radar. It will not be seen on S-band (10 cm) or other radar. Shipboard Global Maritime Distress Safety System (GMDSS) include one or more search and rescue locating devices. The radar-SART may be triggered by any X-band radar within a range of approximately 8 nautical miles (15 ...

3. Global Maritime Distress and Safety System - Wikipedia

   en.wikipedia.org/wiki/Global_Maritime_Distress...

   The GMDSS installation on ships include one (two on vessels over 500 GT) search-and-rescue locating device called Search and Rescue Radar Transponders (SART) which are used to locate survival craft or distressed vessels by creating a series of twelve dots on a rescuing ship's 3 cm radar display. The detection range between these devices and ...

4. List of radar types - Wikipedia

   en.wikipedia.org/wiki/List_of_radar_types

   The frequency band of radar used on most ships is X band (9 GHz/3 cm), but S band (3 GHz/10 cm) radar is also installed on most oceangoing ships to provide better detection of ships in rough sea and heavy rain condition.

5. Distress signal - Wikipedia

   en.wikipedia.org/wiki/Distress_signal

   In addition, distress can be signaled using automated radio signals such as a Search and Rescue Transponder (SART) which response to 9 GHz radar signal, or an Emergency Position-Indicating Radio Beacon (EPIRB) which operates in the 406 MHz radio frequency.

6. Marine radar - Wikipedia

   en.wikipedia.org/wiki/Marine_radar

   Commercial marine radar display. Land areas are shown in yellow, and vessel tracks are displayed with green "tails" on the screen. Marine radar systems can provide very useful radar navigation information for navigators on board ships. The ship's position could be fixed by the bearing and distance information of a fixed, reliable target on the ...

7. List of radars - Wikipedia

   en.wikipedia.org/wiki/List_of_radars

   AN/SPS-55 2D surface search radar [52] AN/APS-57 Small boats navigational radar by Ridge Electronics. [53] AN/SPS-58 Low altitude 2D air search radar [52] AN/SPS-59 Military designation for the LN-66 short-range navigation radar manufactured by Marconi of Canada. In service in many US Navy ships as well as in the SH-2F LAMPS I ASW helicopter.