So why own a radio scanner? The terms a radio scanner
or a police scanner generally refer to a communications receiver
designed primarily to monitor VHF and UHF car radio systems, except, for example, a receiver used to monitor international short-term transmission. More often than not, these scanners can also go with different types of modification (AM, FM, WFM, etc.).
The first scanners were slow, bulky and expensive. Today, modern
microprocessors allowed scanners to store thousands of channels and monitor hundreds of channels per second. Recent models can follow trunked radio systems and decode APCO-P25 digital transmissions. Manual models and desktop models are available.
I will use radio scanners to monitor control police, fire and emergency medical services. Radio scanning plays an important role in the areas of journalism and criminal investigation, as well as recreation.
Fundamentals of the Radio scanner
Scanners usually work in three modes:
Scan, Manual scan and Search for.
Features of Radio Scanner
Many recent models will allow you to scan the specific DCS or CSPSS code used on a specific frequency if you had multiple users. A memory bank can be allocated for air traffic control, another for local maritime communications and another for local police frequencies. I will activate or deactivate them according to the my preference. Most scanners have a weather radio band, which allows the listener to participate in weather radio transmissions from a NOAA transmitter.
Scanners can be equipped with Fire-Tone out. Fire confirms the tones of the quick calls and acts as a caller when the correct sequence is detected. Modern scanners allow you to enter hundreds or thousands of frequencies through a pad and store them.
I have searched for active frequencies on the Internet. We will also read frequency reference books. I will also find them through a programmable scanner search function. An external antenna for desktop scanner or duct antenna for manual units will provide superior performance than the original equipment provided by the
Uses of a Radio Scanner
Radio Scanner fans of automatic racing, aviation enthusiasts, emergency service personnel out of service and journalists use scanners. There are many scanner clubs to allow members to share information about frequencies, codes and operations. Most have an Internet presence, such as websites, email lists or web forums.
Radio scanners monitor police, emergency personnel, air traffic control, weather alerts and even NASCAR driver communications. These devices will keep you updated with information you have interests in.
Take a look at our best rated radio scanners page.