A handie talkie, often referred to by its abbreviation, HT, is a handheld, portable two-way radio transceiver. This type of radio is sometimes called a "walkie talkie" or a "handheld." Handie talkies are popular among amateur radio operators, especially on their VHF and UHF bands at 144 and 432 MHz. Handie talkies are widely used by security personnel, military personnel, and police officers. Most HTs are used in conjunction with repeaters for extended range. Some HTs are designed for the 27-MHz Citizens Band (CB) radio service. A typical HT is a rectangular box about the size and weight of an old-fashioned telephone handset. The antenna protrudes from the top end, and consists of a coiled-up element encased in rubber and wound around a flexible rod. This type of antenna, known as a "rubber duck," is not particularly efficient, but is convenient and rugged. Volume and squelch controls are usually placed next to the antenna. The frequency control knob or buttons are on the top end or the front.
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