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Motorola T5320 FRS handheld radio. 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.
Initially, it used half-watt hand-held FM UHF radios with 14 fixed channels near 462 and 467 MHz. For a time dual-standard FRS and General Mobile Radio Service (GMRS) radios were available, that could be operated without individual licensing on the FRS channels, but which required a license to operate on the GMRS frequencies at a power level ...
US frequency allocations chart, 2016. Frequency allocation (or spectrum allocation) is the part of spectrum management dealing with the designation and regulation of the electromagnetic spectrum into frequency bands, normally done by governments in most countries. [1]
Ant output impedance: 50 Ohms unbalanced (front BNC connector, rear UHF (SO-239) connector) Microphone output impedance: 200-10k Ohms (Nominal: 600 Ohms) Receive sensitivity: 100 kHz – 29.999 MHz continuous better than 0.7 microV for S/N 10 dB; Image rejection: HF/50 MHz: 70 dB, 144/430 MHz: 60 dB; IF rejection: -60 dB (all freq)
Frequency range: 380–470 MHz (UHF R1) Power output: 2.5–5 watts Antenna: omnidirectional, flexible monopole antenna mounted to radio body with SMA connector. 50Ω characteristic impedance. Transmission Range: up to 5 miles on flat terrain, 1 mile with obstacles Channels: 240 channels total, 12.5 or 25 kHz channel bandwidth
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ARC-164 Receiver/Transmitter (RT-1504) used for remote installations. ARC-164 Control Panel (C-11719) used for remote installations. The AN/ARC-164 is an US military UHF aircraft radio that operates in the aeronautical mobile (OR) service / B band (NATO).
A radio-frequency power amplifier (RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency (RF) signal into a higher-power signal. [1] Typically, RF power amplifiers are used in the final stage of a radio transmitter , their output driving the antenna .