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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 ...
When operating in active mode, the Stingray device mimics a wireless carrier cell tower in order to force all nearby mobile phones and other cellular data devices to connect to it. The StingRay is an IMSI-catcher with both passive (digital analyzer) and active (cell-site simulator) capabilities.
Stingray devices have been used in a variety of criminal investigations, from murder and kidnapping to misdemeanor theft. The way law enforcement use stingrays has been criticized by a number of civil liberties groups, who have filed lawsuits against current practices.
A permissive action link (PAL) is an access control security device for nuclear weapons. Its purpose is to prevent unauthorized arming or detonation of a nuclear weapon. [1] The United States Department of Defense definition is:
Scammer phone number lookup: Another option to determine if a phone number calling you is likely scam activity is to search for it on Google. Several websites track scam numbers, and a quick ...
List of HTTP status codes - Wikipediawikipedia.org
A rolling code (or sometimes called a hopping code) is used in keyless entry systems to prevent a simple form of replay attack, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to 'unlock'.
A medical device company has agreed to pay $42 million and plead guilty to resolve U.S. charges that it concealed a malfunction in its lead-testing devices that resulted in thousands of...
Radio-frequency identification ( RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder called a tag, a radio receiver, and a transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits ...
Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.
Magnetic ink character recognition code, known in short as MICR code, is a character recognition technology used mainly by the banking industry to streamline the processing and clearance of cheques and other documents.