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LPD433 (low power device 433 MHz) is a UHF band in which license free communication devices are allowed to operate in some regions. The frequencies correspond with the ITU region 1 ISM band of 433.050 MHz to 434.790 MHz.
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.
The General Mobile Radio Service (GMRS) is a land-mobile FM UHF radio service designed for short-range two-way voice communication and authorized under part 95 of the US FCC code. It requires a license in the United States, but some GMRS compatible equipment can be used license-free in Canada. The US GMRS license is issued for a period of 10 years.
Free-to-play, also known as F2P or FtP, refers to video games which give players access to a significant portion of their content without paying. Since the company's creation, games of IGG has traditionally followed a freemium model where players can play a fully functional game for free, but also have the opportunity to upgrade their gaming experience through a variety of microtransactions.
450–470 MHz: UHF business band, General Mobile Radio Service, and Family Radio Service 2-way "walkie-talkies", public safety; 470–512 MHz: Low-band TV channels 14 to 20 (shared with public safety land mobile 2-way radio in 12 major metropolitan areas scheduled to relocate to 700 MHz band by 2023 [13])
PTT is a 20-year-old technology that works in a similar way to walkie-talkies. It's a two-way radio communication system in which the user pushes a button to switch from receiving voice messages ...
Naval air traffic controller communicates with aircraft over a two-way radio headset A variety of portable handheld two-way radios for private use. A two-way radio is a radio transceiver (a radio that can both transmit and receive radio waves), which is used for bidirectional person-to-person voice communication with other users with similar radios, [1] in contrast to a broadcast receiver ...
TRACON is a series of game software programs that simulate an air traffic control environment on a personal computer. The games were originally sold by Texas-based Wesson International as an offshoot to their line of professional air traffic control simulation products. TRACON and RAPCON were released in 1989, and TRACON II was released in 1990.