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Key Benefits of a Digital Radio Scanner When Looking For a Handheld Radio Scanner
When looking for a handheld radio scanner, you’ll find many different options to choose from, including a digital radio scanner. Here are some basics to help you decide if one of these types is right for you.
A radio scanner, or police scanner as it is often called, is a receiver that can be used to monitor VHF and UHF radio systems. Any type of information transmitted over a two-way radio can be heard with these scanners. Most offer a feature that can be set to ignore or accept transmissions from certain departments.
In the past, scanners could only monitor a few different channels. Depending on what you choose, a mobile radio scanner can now monitor hundreds of channels between 30Mhz and 3Ghz. VHF to UHF is between 300Mhz and 3Ghz and is used by public service agencies with their two-way radios.
Very High Frequency (VHF), ranging from 30 MHZ to 300 MHZ, is used for FM radio broadcasting, television broadcasting, land mobile stations for emergency purposes, military, business, amateur radio, marine communications, air traffic control communications, and aerial navigation systems.
In addition to being used in law enforcement, police scanners are also used for high-frequency communication in corporations and emergency services to keep their information confidential.
Due to the increasing number of intrusions into their communication devices, corporations have started broadcasting digitally. This move opened up the market for digital scanners as technology kept pace with the advances made by corporations.
The digital radio scanner is the latest version of the popular scanners. They are designed to receive and process digitally encoded signals transmitted between various two-way radio systems for public use.
The reason these scanners are called “digital” is that they are designed to be compatible with radio signals transmitted in digital mode rather than the conventional analog mode, although both older analog signals and newer digital shows. Most digital scanners will continue to process analog signals as well.
Digital signals are less affected by interference and noise and deliver usable information better at the extremes of their range when analog signals become unpredictable. Some digital devices are also equipped with a trunk tracking feature to take advantage of the main lines. Most police and fire departments use radio frequencies and channels that are linked together by a trunk system.
When looking at a handheld radio scanner, you will more than likely come across the phrase APCO P-25. It is a set of digital radio communications standards used by federal, state, and local public safety agencies in the United States to communicate with each other. Unencrypted digital signals conforming to the APCO P-25 standard can be processed by digital radio scanners.
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