SCANNER AUDIO - N.Y.P.D POLICE OFFICER SHOT!! - Part ONE -

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A scanner is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing scanning when that frequency goes silent. Many scanners cover the non-broadcast radio bands between 30 and 951 MHz using FM, although there are models that cover more of the radio spectrum and use other modulation types. Early scanners were slow, bulky, and expensive. Today, modern microprocessors have enabled 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. Both hand held and desktop models are available. Scanners are often used to monitor police, fire and emergency medical services.

Scanners developed from earlier tunable and fixed-frequency radios that received one frequency at a time. Non-broadcast radio systems, such as those used by public safety agencies, do not transmit continuously. With a radio fixed on a single frequency, much time could pass between transmissions, while other frequencies might be active. A scanning radio will sequentially monitor multiple programmed channels, or search between user defined frequency limits. The scanner will stop on an active frequency strong enough to break the radio's squelch setting and resume scanning other frequencies when that activity ceases.

Scanners are used by hobbyists, railfans, off duty emergency services personnel, reporters and corporate spies.

Scanners first became popular and widely available during CB Radio's heyday in the 1970s. The first scanners often had between four and ten channels and required a separate crystal for each frequency received. Modern programmable scanners allow hundreds or thousands of frequencies to be entered via a keypad and stored in various 'memory banks' and can scan at a rapid rate due to modern microprocessors.


A hand-held wide band communications receiver.Many recent models will allow scanning of the specific DCS or CTCSS code used on a specific frequency should it have multiple users. One memory bank can be assigned to air traffic control, another can be for local marine communications, and yet another for local police frequencies. These can be switched on and off depending on the user's preference. Most scanners have a weather radio band, allowing the listener to tune into weather radio broadcasts from a NOAA transmitter.

Some scanners are equipped with Fire-Tone out. Fire tone out decodes Quik call II tones and acts as a pager when the correct sequence of tones is detected.

Active frequencies can be found by searching the internet and frequency reference books or can be discovered through a radio's search function. An external antenna for a desktop scanner or an extendable antenna for a hand held unit is a good idea for optimum performance.

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Tags:

• police
• audio
• scanner
• nypd
• NYPD
• cop
• shot
• down
• ham
• cb
• communications

[bigkone2001]

You sure picked the right login name. You truly are an asshole.

[streetcrime4955]

You are a ball less asswipe!

[unicron24]

the cops are not gods,, if u ask them to leav your property they should leave then come back with the warrent.. most officers i;ve met are good people,,, but if u train to be a fighter somewhere inside the person there is a need to release it.there are some that wish to restore peace, but some are just robots..if i went to a cops home cuz i heard someone fighting and then i tazed the dogs and entered the property i would be shot and arrested ,thats if the cop dident unload on me.

[JohnHardwick1976]

@Saosin49 Oh please. Mini market clerks have a more dangerous job.

[Saosin49]

@JohnHardwick1976 how do you know?

[JohnHardwick1976]

@Saosin49 Its not a hard job at all. Dont hand me that shit

[Saosin49]

@JohnHardwick1976 until you do the job, you have no room to talk!

[JohnHardwick1976]

@Saosin49 You are the one sticking up for murders, thieves, liars, and lowlifes. WoW.

[Saosin49]

@JohnHardwick1976 so your being a hypocrite, you hate and you tell other people to love, wow

[JohnHardwick1976]

@Saosin49 Tell cops to learn to love. Hey you started with bible verses.

[Saosin49]

@JohnHardwick1976 dont throw bible terms at me when you are spitting hate at people you dont even know, learn to love not hate!!!!

[JohnHardwick1976]

@Saosin49 You have no life cause you actually believe cops are good. Cops do not only wish harm but harm people everyday. Cops break the majority of the ten commandments everyday. Go look in the bible at Proverbs 11:7. It talks about the wicked(people like cops!)