Mini-automatic radar plotting aid
- Mini-automatic radar plotting aid
-
- This article is about the radar plotting aid. For the PMA aircraft parts trade association see Modification and Replacement Parts Association.
Mini-automatic radar plotting aid (or MARPA) is a 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. MARPA is a more basic form of ARPA (automatic radar plotting aid).
Manufacturers use a variety of acronyms for the small crafts or yacht, e.g. MARPA (mini or manual ARPA, depending on which company you talk to) is the dominant one. MARPA, ATA (automatic tracking aid), and ARP (automatic radar plotting) all similar functions to ARPA. The major difference of this Radar plotting aids may not be fully equivalent to all ARPA performance standard of IMO approved type which is a mandatory requirement for large ocean-going ships. Therefore, they are less expensive for small craft.
References
Wikimedia Foundation.
2010.
Look at other dictionaries:
Mini Automatic Radar Plotting Aid — (or MARPA) is a 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),… … Wikipedia
Automatic Radar Plotting Aid — A maritime radar with Automatic Radar Plotting Aid (ARPA) capability can create tracks using radar contacts. The system can calculate the tracked object s course, speed and closest point of approach (CPA), thereby knowing if there is a danger of… … Wikipedia
Marpa — may refer to: Marpa Lotsawa, Tibetan Buddhist teacher credited with the transmission of many Buddhist teachings to Tibet from India Marpa, Peru, ruins of a pre Columbian town located along the Cotahuasi Canyon in the Andes range of southern Peru… … Wikipedia
Modification and Replacement Parts Association — This article is about the aircraft parts trade association. For the radar plotting aid see Mini Automatic Radar Plotting Aid. The Modification and Replacement Parts Association is the Washington, D.C. based trade association that represents… … Wikipedia
Index alphabétique maritime — Projet:Maritime/Index Projet maritime Bistro du port Participants Actualités Agenda Outils À faire … Wikipédia en Français
Royal Observer Corps — Ensign Active 1925–1996 Country … Wikipedia
List of Dragon Ball episodes — First volume of the Dragon Ball DVD series, released by Toei Entertainment on April 4, 2007 Dragon Ball is the first in a trilogy of anime adaptations of the Dragon Ball manga series by Akira Toriyama. Produced by Toei Animation, the anime series … Wikipedia