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X. X band alerts mean a radio wave has been detected within the 8.0-GHz to 12.0-GHz range. The X-band is the oldest radar frequency, and these days it's considered outdated if not altogether obsolete.
Uniden was established on February 7, 1966, by its founder Hidero Fujimoto as "Uni Electronics Corp". Uniden became a well-known brand in the 1970s by manufacturing and marketing millions of citizens band radios (CB), under the Uniden brand as well as other companies such as Midland and Realistic, which rebranded the equipment under their own labels.
Digital Signal 1 (DS1, sometimes DS-1) is a T-carrier signaling scheme devised by Bell Labs. [1] DS1 is the primary digital telephone standard used in the United States , Canada and Japan and is able to transmit up to 24 multiplexed voice and data calls over telephone lines.
The SDH standard was originally defined by the European Telecommunications Standards Institute (ETSI), and is formalised as International Telecommunication Union (ITU) standards G.707, [2] G.783, [3] G.784, [4] and G.803. [5] [6] The SONET standard was defined by Telcordia [7] and American National Standards Institute (ANSI) standard T1.105.
This standard codified information from, among other sources, a United States military standard MIL-STD-16 which dates back to at least the 1950s in American industry. To replace IEEE 200-1975, ASME, a standards body for mechanical engineers, initiated the new standard ASME Y14.44-2008. This standard, along with IEEE 315-1975, provide the ...
Digital Signal Designation Bandwidth/data rate Channels (DS0s) Carrier designation DS0 64 kbit/s 1 DS1: 1.544 Mbit/s 24 T1 DS1 3.152 Mbit/s 48 T1c
Videocipher II satellite descrambler stand-alone box sold by General Instrument. VideoCipher is a brand name of analog scrambling and de-scrambling equipment for cable and satellite television invented primarily to enforce Television receive-only (TVRO) satellite equipment to only receive TV programming on a subscription basis.
The Vektor R4 is a South African 5.56×45mm assault rifle. [8] It entered service as the standard service rifle of the South African Defence Force (SADF) in 1980. [ 1 ] In South African service, the R4 replaced the R1, a variant of the 7.62×51mm FN FAL . [ 7 ]