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(2) Shared FRS and GMRS simplex; GMRS repeater output. (3) GMRS repeater input. The output frequency of this repeater input is the input frequency minus 5 MHz. (4) FRS transmissions are limited to bandwidth of 11 kHz with a transmitter deviation of +/- 2.5 kHz. Channels are on 12.5 kHz centers. (5) GMRS transmissions may have a bandwidth of 16 ...
467.6000 MHz – US GMRS Repeater Ch 17/25 Input; 467.6125 MHz – US FRS Channel 10; 467.6250 MHz – US GMRS Repeater Ch 18/26 Input; 467.6375 MHz – US FRS Channel 11; 467.6500 MHz – US GMRS Repeater Ch 19/27 Input; 467.6625 MHz – US FRS Channel 12; 467.6750 MHz – US GMRS Repeater Ch 20/28 Input
The duplexer is a device which prevents the repeater's high-power transmitter (on the output frequency) from drowning out the users' signal on the repeater receiver (on the input frequency). A diplexer allows two transmitters on different frequencies to use one antenna, and is common in installations where one repeater on 2 m and a second on ...
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]
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 .
Land mobile radio systems are widely used by the military. Separate bands in the radio spectrum are reserved for their use. This includes portions of the 30-50 MHz band, and the entire 100-100, 100-100.8, and 540-2400 MHz bands, plus shared use of the 170- 170 MHz band.
Emergency channels 9 (27.065 MHz AM) and 19 (27.185 MHz AM) GMRS: 462.675 MHz is a UHF mobile distress and road information calling frequency allocated to the General Mobile Radio Service and used throughout Alaska and Canada for emergency communications; sometimes referred to as "Orange Dot" by some transceiver manufacturers who associated a ...
February 2025) (Learn how and when to remove this message) Motorola HT1000 hand-held two-way radio Professional mobile radio (also known as private mobile radio ( PMR ) in the UK) are person-to-person two-way radio voice communications systems which use portable , mobile, base station , and dispatch console radios.