Antenna Police
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A Handheld Radio Scanner - More Than Just Police Scanners
A handheld radio scanner is often used for listening to emergency services, but there are other types of communications that you can listen to also. They are usually used as a hobby, but they are also handy for investigators, journalists, and volunteers.
Even though a lot of people call these radios police scanners, they can receive signals transmitted from a large range of frequencies, and so you are able to listen in on air traffic control, fire and ambulance services, race teams, and much more, as well as the police transmissions.
The most popular of hand held scanners are the Uniden radio scanners, especially the Uniden Bearcat scanners. Bearcat scanners start with a basic model with 100 channels, and go all the way up to models with 25,000 channels, with many choices in between.
Modern scanners are controlled by microprocessors and micro electronics and are designed to be light weight and portable. Back in the 1970's, when they first came out, they were very heavy, slow and expensive, and their batteries were very large and heavy. Today there are also home based models available, and they are usually larger in size, but because of that they might have additional features that the portable models can't because of their smaller size.
Scanners today are capable of being programmed with the ability of storing thousands of channels, and can monitor them in the hundreds per second. They are meant to monitor and scan local VHF and UHF bands in the RF frequencies. They also handle various methods of modulation such as AM, FM, and WFM.
A basic handheld radio scanner usually has 100 channels, which is probably plenty for someone just starting out as a hobby. More sophisticated models have up to 25,000 channels. An average scanner will pick up transmissions up to 40 miles away, depending on the antenna being used. The scanner has a vast range of frequencies to scan usually between 29 MHz and 512 MHz.
Basically a scanner is a radio communications receiver that can automatically scan, or tune into, at least two frequencies. They have a squelch setting that can be adjusted in order to filter signals for more or less sensitivity of interference or undesired transmissions.
About the Author
Find out more information about a handheld radio scanner and see the best selection and prices of Uniden Bearcat scanners and other Uniden radio scanners at BestBearcatScanners.com


US $269.00




























