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Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...
Various national databases of United States persons, and their activities, have been compiled by government and private entities. Different data types are collected by different entities for different purposes, nominal or otherwise. These databases are some of the largest of their kind, [1] and even the largest ever. [2]
Mobile phone tracking is a process for identifying the location of a mobile phone, whether stationary or moving. Localization may be affected by a number of technologies, such as the multilateration of radio signals between (several) cell towers of the network and the phone or by simply using GNSS. To locate a mobile phone using multilateration ...
Roller Coaster DataBase (RCDB) is a roller coaster and amusement park database begun in 1996 by Duane Marden. [1] It has grown to feature statistics and pictures of over 11,000 roller coasters from around the world.
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Spatial database. A spatial database is a general-purpose database (usually a relational database) that has been enhanced to include spatial data that represents objects defined in a geometric space, along with tools for querying and analyzing such data. Most spatial databases allow the representation of simple geometric objects such as points ...
The National Crime Information Center ( NCIC) is the United States' central database for tracking crime-related information. The NCIC has been an information sharing tool since 1967. [ 1] It is maintained by the Criminal Justice Information Services Division (CJIS) of the Federal Bureau of Investigation (FBI) and is interlinked with federal ...
5. GreatPeopleSearch. GreatPeopleSearch is a user-friendly free reverse phone number lookup site that provides searchers with fast and accurate results. It draws on publicly available national ...