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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 ...
A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...
A display resolution standard is a commonly used width and height dimension (display resolution) of an electronic visual display device, measured in pixels. This information is used for electronic devices such as a computer monitor. Certain combinations of width and height are standardized (e.g. by VESA) and typically given a name and an ...
Learn how to update your settings to make AOL Mail look and feel exactly how you need it. Netscape Internet Service (ISP) · Jan 30, 2024. 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.
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz ). Electromagnetic waves in this frequency range, called radio waves, are widely used in modern technology, particularly in telecommunication. To prevent interference between different users, the generation and transmission of radio ...
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English Wikipedia (marked blue in the graph) is the most-read version of Wikipedia, accounting for 48% of the website's global traffic as of 2021. The English Wikipedia is the most edited Wikipedia's language version of all time. The English Wikipedia reached 4,000,000 registered user accounts on 1 April 2007, [23] over a year since the ...
1 September 1985; 38 years ago. ( 1985-09-01) The wreck of the Titanic lies at a depth of about 12,500 feet (3,800 metres; 2,100 fathoms), about 370 nautical miles (690 kilometres) south-southeast off the coast of Newfoundland. It lies in two main pieces about 2,000 feet (600 m) apart. The bow is still recognisable with many preserved interiors ...