CB World is one of the best stocked Bearcat scanner dealers on the net. We offer an extensive line of scanners, scanner parts, scanner accessories, and scanner batteries from Uniden. Radio scanners, also known as police scanners, serve one main purpose with several applications. Radio scanners, as the name would suggest, are used to scan radio frequencies and listen to broadcasts and conversations. Uniden scanners can be used to pick up police / firefighter broadcasts, racing pit crews, event organizers, sports events broadcasts, and many other types of radio communication. Our convenient shopping cart system allows browsing of products by category and by manufacturer. Whether you are in the market for a base scanner, mobile scanner, or a handheld scanner, we have what you need. All of our Uniden police scanners are covered by our DOA out-of-the-box warranty

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Scanners developed from earlier tunable and fixed-frequency radios that received one frequency at a time. Non-broadcast radio systems, such as those used by public safety agencies, do not transmit continuously. With a radio fixed on a single frequency, much time could pass between transmissions, while other frequencies might be active. A scanning radio will sequentially monitor multiple programmed channels, or search between user defined frequency limits. The scanner will stop on an active frequency strong enough to break the radio’s squelch setting and resume scanning other frequencies when that activity ceases. Scanners are used by hobbyists, railfans, off duty emergency services personnel and reporters. Scanners first became popular and widely available during CB Radio’s heyday in the 1970s. The first scanners often had between four and ten channels and required the purchase of a separate crystal for each frequency received. Modern programmable scanners allow hundreds or thousands of frequencies to be entered via a keypad and stored in various ‘memory banks’ and can scan at a rapid rate due to modern microprocessors. A hand-held wide band communications receiver. Many recent models will allow scanning of the specific DCS or CTCSS code used on a specific frequency should it have multiple users. One memory bank can be assigned to air traffic control, another can be for local marine communications, and yet another for local police frequencies. These can be switched on and off depending on the user’s preference. Most scanners have a weather radio band, allowing the listener to tune into weather radio broadcasts from a NOAA transmitter. Some scanners are equipped with Fire-Tone out. Fire tone out decodes Quik call II tones and acts as a pager when the correct sequence of tones is detected. Active frequencies can be found by searching the internet and frequency reference books or can be discovered through a programmable scanner’s search function. An external antenna for a desktop scanner or an extendable antenna for a hand held unit will provide greater performance than the original equipment antennas provided by manufacturers.

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