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2. AN/SPS-55 - Wikipedia

   en.wikipedia.org/wiki/AN/SPS-55

   The AN/SPS-55 is a solid state surface search and navigation radar. It was developed by Cardion Electronics for the U.S. Navy under a contract awarded in 1971. It was originally developed for a class of ships known as Patrol Frigates, but it was also installed on numerous Cruisers, Destroyers, and Minesweepers.

3. 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 ...

4. Automatic radar plotting aid - Wikipedia

   en.wikipedia.org/wiki/Automatic_radar_plotting_aid

   A typical shipboard ARPA/radar system. A marine radar with automatic radar plotting aid (ARPA) capability can create tracks using radar contacts. [1] [2] The system can calculate the tracked object's course, speed and closest point of approach [3] (CPA), thereby knowing if there is a danger of collision with the other ship or landmass.

5. Mini-automatic radar plotting aid - Wikipedia

   en.wikipedia.org/wiki/Mini-automatic_radar...

   Mini-automatic radar plotting aid (or MARPA) is a maritime radar feature for target tracking and collision avoidance. Targets must be manually selected, but are then tracked automatically, including range, bearing, target speed, target direction (course), CPA (closest point of approach), and TCPA (time of closest point of approach), safe or dangerous indication, and proximity alarm.

6. Sea-based X-band radar - Wikipedia

   en.wikipedia.org/wiki/Sea-based_X-band_Radar

   The Sea-Based X-band radar (SBX-1) is a floating, self-propelled, mobile active electronically scanned array early-warning radar station designed to operate in high winds and heavy seas. It was developed as part of the United States Department of Defense Missile Defense Agency's (MDA) Ballistic Missile Defense System.

7. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. AOL Mail for Verizon Customers - AOL Help

   help.aol.com/products/aol-mail-verizon

   AOL Mail welcomes Verizon customers to our safe and delightful email experience!

9. The best shoes for flat feet for 2025, according to podiatrists

   www.aol.com/lifestyle/best-shoes-flat-feet...

   Pedorthist and co-owner of Lucky Feet Shoes Jerick Sobie says these shoes offer a "breathable design without sacrificing essential arch support." Sobie says the slip on boat shoe with its no-tie ...