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The TriSquare TSX300. eXtreme Radio Service (eXRS) is a proprietary personal communication technology marketed by TriSquare in the United States. The radios, which are similar to other walkie-talkies, use the Part 15 low power communication 915 MHz band, and employ frequency-hopping spread spectrum FM technology to attempt to address some of the perceived shortcomings of Family Radio Service ...
GMRS radios are typically handheld portable (walkie-talkies) much like Family Radio Service (FRS) radios, and they share a frequency band with FRS near 462 and 467 MHz. Mobile and base station-style radios are available as well, but these are normally commercial UHF radios as often used in the public service and commercial land mobile bands ...
The PRC-127 radio was initially manufactured in Lawrence, Kansas, USA from 1989 on by the Bendix-King Corporation, the updated Version PRC-127A from 1996 on by Bendix-King (now a division of Relm Wireless). The final version of this radio is the model AN/PRC-127EFJ, made by E.F. Johnson Technologies, which is a completely different radio.
The RCA model R7 Superette superheterodyne table radio. This is a list of notable radios, which encompasses specific models and brands of radio transmitters, receivers and transceivers, both actively manufactured and defunct, including receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios.
This uses single audio tones in the range from 67 to 257 Hz to address each message to a specific radio or a group (or fleet) of radios. Each radio or group is assigned a different tone frequency. The code tone is transmitted continuously throughout the audio transmission along with the voice modulation.
The Family Radio Service (FRS) is an improved walkie-talkie radio system authorized in the United States since 1996. This personal radio service uses channelized frequencies around 462 and 467 MHz in the ultra high frequency (UHF) band.
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