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A portable Yagi–Uda antenna for use at 144 MHz (2 m), with segments of yellow tape-measure ribbon for the arms of the driven and parasitic elements. Consider a Yagi–Uda consisting of a reflector, driven element, and a single director as shown here.
The AN/PRC-6809 MBITR Clear is a variant of the MBITR, made available without encryption. While the PRC-148 includes US Type 1 capabilities in all versions, the PRC-6809 uses Level III Data Encryption Standard, making it available to police, firefighters, and militaries unable to obtain International Traffic in Arms Regulations (ITAR) approval.
Portable radios usually use whips or rubber ducky antennas, while base stations usually use larger fiberglass whips or collinear arrays of vertical dipoles. For directional antennas, the Yagi antenna is the most widely used as a high gain or "beam" antenna.
[ab] The simple antennas used to make a Yagi-Uda can either all be linear or bent linear antennas, or all loops (a quad antenna) or (rarely) a mixed combination of loops and straight-wire antennas. Yagi–Udas are used for rooftop television antennas, point-to-point communication links, and long distance shortwave communication using skywave ...
Falcon® portable, tactical software-defined combat-net radio: Harris Corporation (now L3Harris Technologies) AN/PRC-119: Single Channel Ground and Airborne Radio System (SINCGARS) AN/PRC-125: Rescue swimmer radio. Replaced by AN/PRC-149: AN/PRC-127: Portable handheld Bendix-King 2W Very High Frequency (VHF) radio: Honeywell: AN/PRC-137 [160 ...
The AN/PRC-77 entered service in 1968 during the Vietnam War as an upgrade to the earlier AN/PRC-25.It differs from its predecessor mainly in that the PRC-77's final power amplifier stage is made with a transistor, eliminating the only vacuum tube in the PRC-25, as well as the DC-DC voltage converter used to create the high plate voltage for the tube from the 15 V battery.