Brief,Introduction,Police,Scan communication A Brief Introduction to Police Scanner and Its Uses
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Police scanner, radio scanner, or simplyscanner; all three terms refer to the same device, a wideband radio-receivercapable of hearing two-way communications in the VHF and UHF radio bands. Scanners are used by a wide spectrum ofpeople, from radio hobbyists to everyday folks who just want to keep an ear onwhat's happening around town. Scanners are also used by the news media as wellas people who love news and want to hear all about it as it happens. Others areconcerned in today's environment for personal and neighborhood safety and wantto stay in tune with the fantastic job our public servants perform. Most peopleare more likely to know scanners as "police scanners" as lawenforcement is consistently the most popular listening target.A police scanner is one of the most valuabletools we can have nearby when disaster strikes! The only sure way to get timelyup-to-date and critical information after a disaster is by monitoring a policescanner. Television and radio broadcast information is not a viable option asinformation via those sources is often delayed, sketchy, or unconfirmed atbest. Armed with this information, you can take any necessary action to protectyou and your family and even avoid unseen dangers before its too late!The range depends primarily on the height of theantenna and the power used. With a handheldor desktop scanner you can hear in a 10 to 20 mile radius, but that's not setin stone. Base stations and repeaters usually can be heard from30-40 miles or more. Aircraft in flight can often be heard over 150 miles away,making them an easy catch for your radio scanner!Most of public service agencies, departments,and others transmit and receive on Federal Government assigned frequencies inthe Vhf and Uhf range of frequencies above standard broadcast FM stations ofthe radio spectrum and cannot be heard on your standard car or home radio butcan be heard on "Police type Radio Scanners". The laws as to whetheror not you can even possess a police scanner depend on your city/county/stateand the specific equipment youre using. Many states have moved public servicecommunications to digital trunked systems to reduce interference, intentionaljamming, and the ability for small-time crooks to buy a $30 scanner to listento them. Monitoring private phone conversations is prohibited. No scanners madein the last 10 years have been capable of monitoring cell phones or are capableof being modified to do so. In other parts of the world, particularly inEurope, the public safety radio systems cannot be monitored.
Brief,Introduction,Police,Scan