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Summary Of The Mobile Radio Scanner

By Andy Zain

Selecting a mobile radio scanner will greatly depend on the purpose that it is being purchased for. If an individual wishes to monitor transmissions within a local area, they will find that a lower end scanner will be effective. However, if the scanner will be used in an area where a person may require emergency assistance there are scanners made that have emergency beacons built into them.

Mobile radio scanners are available in many styles and designs that fit the individual needs of their users. Some scanners are manufactured with the built-in capability to send an emergency signal to police and emergency services departments. Other scanners are designed to be used both in a vehicle or as a base station in a home.

Most of the mobile scanners can pick up frequencies as much as forty miles from a person's location depending on the type of antenna that they use with their system. The magnetic antenna is the most common choice for many people who use their mobile radio scanner frequently. This antenna uses a vehicle as a part of the receiving unit and has a clearer output than other antennas. It can also be used to add range to a base station antenna.

The magnetic mounted antenna can move removed from a vehicle easily and used to increase the range of a base unit's antenna. A person will find that since these antennas use the vehicle as the ground for the antenna it gets a longer range as well as clearer audio quality from the scanner.

A mobile radio scanner may be selected with VHF monitoring capability which receives frequencies transmitted between 30Mhz and 300Mhz. These are the frequencies most often used by the police, military, marine, and other public departments. Scanners with a VHF to UHF capability receive from 300Mhz to 3Ghz frequencies which are used by public service agencies on their 2-way radios.

An individual can store thousands of channels on their scanner. It is possible to scan hundreds of frequencies per second. There are scanners manufactured that also can follow APCO-PC 25 digital frequencies and trunked systems. These frequencies are used by emergency services and security agencies in the federal, state, and local governments. Some of the transmissions of these agencies is encrypted and mobile radio scanners cannot receive them for security purposes.

There are many times when the mobile radio scanner that one selects will provide security. This is especially true of individuals who travel a lot or live in areas with severe climate changes. Having a mobile scanner that can receive important information when one is traveling, or emit an emergency beacon when a person is stranded is of enormous benefit to most people.

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