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Spektrum is a brand of radio control systems designed for use with hobby radio-controlled cars and aircraft. Spektrum is a division of Horizon Hobby. The R/C hobby in the United States, Japan, and Europe typically used to employ FM radio control in HF and VHF bands such as 27 MHz, 35 MHz, 49 MHz, and 72 MHz.
In May 2008, ISED commenced an auction for 105 MHz of spectrum with 40 MHz reserved for new entrants. The auction concluded on July 23, 2008, after 331 rounds and raised $4.25 billion. [12] In August 2011, Canada made the switch from analog to digital television, freeing up spectrum in the 700 MHz band for other uses.
[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 ...
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.
After the March 2008 conclusion of Auction 73, Motorola initiated steps to have 3GPP establish a new industry standard (later designated as band class 17) that would be limited to the lower 700 MHz B and C blocks. In proposing band class 17, Motorola cited the need to address concerns about high-power transmissions of TV stations still ...
In telecommunications, especially radio communication, spread spectrum are techniques by which a signal (e.g., an electrical, electromagnetic, or acoustic) generated with a particular bandwidth is deliberately spread in the frequency domain over a wider frequency band.