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Since 1981, the Western Washington Repeater Association has operated an amateur radio repeater, call sign WW7RA, on the site, [7] with coverage throughout the Puget Sound region from Centralia to Bellingham. [8] [9] A Continuously Operating Reference Station used for GPS-based geodesy is located at the KTBW site on the summit. [10]
An SSTV repeater is an amateur radio repeater station that relays slow-scan television signals. A typical SSTV repeater is equipped with a HF or VHF transceiver and a computer with a sound card, which serves as a demodulator/modulator of SSTV signals. SSTV repeaters are used by amateur radio operators for exchanging pictures.
Jump off Joe's high elevation compared to the surrounding area makes it an ideal location to place towers for radio and television communications. Among these is an amateur radio repeater that provides coverage to much of the Columbia Basin. [3] Two major local television stations, NBC affiliate KNDU and ABC affiliate KVEW have their towers ...
RFinder's main service is the World Wide Repeater Directory (WWRD), which is a directory of amateur radio repeaters. RFinder is the official repeater directory of several amateur radio associations. RFinder has listings for several amateur radio modes , including FM , D-STAR , DMR , and ATV .
A radio repeater is a combination of a radio receiver and a radio transmitter that receives a signal and retransmits it, so that two-way radio signals can cover longer distances. A repeater sited at a high elevation can allow two mobile stations, otherwise out of line-of-sight propagation range of each other, to communicate. [ 1 ]
American radio amateurs may use a maximum of one watt of radiated RF power, on any ham frequency authorized for data emissions, to control RC models. [10] Canadian radio amateurs may use any amateur frequency above 30 MHz for the control of RC models. [11] Plus or minus 5 MHz is a common repeater frequency offset in the 70 cm band.
This 110-foot-tall (34 m) tower includes amateur radio repeaters [7] and an AT&T microwave transmitter. [8] Surrounding the mountain are forests of western hemlock and Douglas fir trees. Fauna in the area include a variety of birds such as hermit warbler , sooty grouse , chestnut-backed chickadee , golden-crowned kinglet , Steller's jay , and ...
By general agreement among the amateur radio community, 200 kHz of the 6 meter band is reserved for the telecommand of models, by licensed amateurs using amateur frequencies. The sub-band reserved for this use is 50.79–50.99 MHz with ten "specified" frequencies, numbered "00" through "09", spaced at 20 kHz apart from 50.800–50.980 MHz.
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