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The replacement of ground-based BTDF systems in the aviation role was due primarily to two factors: One was the move to ever-shorter wavelengths, which so shortened the required antennae that RDF could be carried out on a small receive antenna only a few centimetres in length.
Roberts introduced their first DAB digital radio in 1999, [3] the Classic 2000, which was released in May 2000. [13] Roberts produced their first internet radio , the WM-201, [ 14 ] in 2007. [ 15 ] Its follow up was the Stream 202, which launched the Stream series of internet radio products from Roberts. [ 16 ]
Roberts moved to morning drive on KFMB in 2003, replacing Ted Leitner. [9] In 2009, Roberts's KFMB show was among six local conservative talk radio shows in California measured by Arbitron to have a weekly audience of more than 100,000. [10] In January 2011, Roberts returned to his former afternoon drive slot as KFMB debuted a new morning show ...
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The antenna is made of a narrow helix of wire like a spring, which functions as the needed inductor. The springy wire is flexible, making it less prone to damage than a stiff antenna. The spring antenna is further enclosed in a plastic or rubber-like covering to protect it. The technical name for this type of antenna is a normal-mode helix. [7]
[24] [25] [26] Introduced in the year 2000, the radio was known for its "all-in-one" functionality. It can transmit on all amateur radio bands between 160 meters and 70 centimeters, with the exception of the 1.25 meters band, and the "X" model also has built-in 23 centimeters band capability option. Kenwood discontinued production of the TS ...
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The Joint Precision Airdrop System (JPADS) is an American military airdrop system which uses the Global Positioning System (GPS), steerable parachutes, and an onboard computer to steer loads to a designated point of impact (PI) on a drop zone (DZ). The JPADS family of systems consists of several precision airdrop systems, ranging from extra ...