Uniden SC230 Understanding Scanning, Understanding the Scanner’s Memory, What is Scanning?

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Understanding Scanning

This section provides you with background on how scanning works. You don’t really need to know all of this to use your scanner, but some background knowledge will help you get the most from your SC230.

Understanding the Scanner’s Memory

Your scanner’s memory is organized in an architecture called Dynamic Allocated Channel memory. This type of memory is organized differently and more efficiently than the bank/channel architecture used by traditional scanners. Dynamic Allocated design matches how radio systems actually work much more closely, making it easier to program and use your scanner and determine how much memory you have used and how much you have left.

Instead of being organized into separate banks and channels, your scanner’s memory is contained in a pool. You simply use as much memory as you need in the pool to store as many frequencies and alpha tags as you need. No memory space is wasted, and you can tell at a glance how much memory you have used and how much remains.

What is Scanning?

Unlike standard AM or FM radio stations, most two-way communications do not transmit continuously. Your SC230 scans programmed channels until it finds an active frequency, then stops on that frequency and remains on that channel as long as the transmission continues. When the transmission ends, the scanning cycle resumes until the scanner receives another transmission.

What is Searching?

The SC230 can search each of its 22 bands and up to 10 banks together to find active frequencies. This is different from scanning because you are searching for frequencies that have not been programmed into the scanner. When you select frequency bands to search, the scanner searches for any active frequency within the

Understanding Scanning

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Contents OWNER’S Manual Precautions PrecautionsPrecautions Contents Using the Menu Programming Radio Systems Contents Scanning Legally FCC Wants You to KnowFCC Wants You to Know FCC Wants You to Know Introduction IntroductionNFM UHF Feature Highlights Feature HighlightsFeature Highlights Weather Backlight and Power About This ManualHow the Scanner’s Controls Are Represented in This Manual Entering TextWhat is Scanning? What is Searching?Understanding Scanning Understanding the Scanner’s MemoryWhat is CTCSS/DCS? Ctcss Frequencies Hz DCS Codes OctalUsing the Scanner at the Racetrack Conventional ScanningSimplex Operation Where To Get More InformationRepeater Operation Information On The Internet Included With Your Scanner Included With Your ScannerUsing Internal Batteries Setting Up Your ScannerSetting Up Your Scanner Setting Up Your Scanner Using Rechargeable Batteries Connecting the Antenna Using AC PowerConnecting an Optional Antenna Connecting an Extension Speaker Connecting an Earphone/HeadphoneAttaching the Belt Clip Installing the Demo Software Attaching the Wrist StrapHold Look At The KeypadScan/Srch + 1-9, 0/Race Selects 0/RacePri No/ /Rev RclYes/Att Look At The Display Using Func Using MenuUsing the Scroll Control Turning On the Scanner Setting the Squelch Basic OperationScanning Systems Basic OperationScanning Preprogrammed Races When You Get To The TrackBefore You Get To The Track Selecting Systems to Scan Selecting Interference Eliminator CodesLocking/Unlocking Systems Selecting System Channel GroupsLocking/Unlocking Channels Holding On a Channel Temporarily Holding On a SystemQuick-Storing Channels Quickly Recalling Channels Other Settings Using the Backlight Initializing the Scanner’s MemoryConnecting Your Scanner to a Personal Computer Using the PC Control Cloning OptionsXfer Information Cloning the Scanner Using the Menu Using the MenuMenu Item Lets You See Set up Priority Scan Programming Radio Systems Programming Radio SystemsQuickly Programming Racing Systems Programming Radio Systems Manually Programming Racing Systems Editing the CarProgram SysteM Racing Confirm?Entering/Editing a Car Number Editing a DriverEditing a Car’s Channel Setting a Car’s Quick KeyDeleting a Car Setting Lockout On a Car Programming Conventional SystemsEntering/Editing Conventional Channel Groups Entering/Editing Conventional ChannelsProgramming Radio Systems System-Level Settings Programming/Editing Optional SettingsEditing the System Name Editing the System Quick Key Conventional Systems OnlySetting System Lockout Setting the System Hold TimeSetting the Channel Delay Time Setting Data SkipGroup-Level Settings Deleting SystemsCopying Systems Entering/Editing the Group NameSetting the Group Quick Key Channel-Level Settings Setting Group LockoutDeleting Groups Editing the Channel Name Conventional Systems OnlySetting Channel Priority Setting Channel Alert Setting CTCSS/DCSSetting Channel Modulation Setting Channel Attenuation Setting the Frequency StepSetting Channel Lockout Deleting ChannelsCopying/Pasting Channels Searching and Storing Service SearchSearching and Storing CTCSS/DCS Search Quick SearchCustom Search Editing a Custom Search Range Auto Search and Store Selecting a SystemStoring a System Using the Close Call Feature Using the Close Call FeatureSetting Close Call Options Close Call Hits Search and Close Call Options Managing Locked-Out FrequenciesSearching for Subaudible Tones Unlocking All FrequenciesScreening Out Paging Systems Finding Repeater Output FrequenciesSetting the Maximum Auto Store Value Setting the Modulation TypeSetting Data Skip Setting AttenuationSetting the Delay Time Setting the Search Frequency Step Using Weather Alert Same Using Weather Alert SameSearching For a Weather Broadcast Turning Weather Alert On/OffProgramming a Same Group Setting WX Alert Priority WX OperationCare and Maintenance CleaningCare and Maintenance General UseRepairs BirdiesTroubleshooting TroubleshootingProblem Possible Cause Suggestion Troubleshooting Specifications SpecificationsOperating Temperature Optional Accessories Optional AccessoriesCollecting Information PlanningPlanning Planning Race Name Filling Out The Racing System WorksheetCar #/Driver-Frequency-Priority-CTCSS/DCS Racing System Worksheet Racing System W orksheetFilling Out The Conventional System Worksheet System Name and Quick KeyGroup Name and Quick Key Frequency-Alpha Tag-Priority-CTCSS/DCSConventional System Worksheet Conventional System WorksheetPreprogrammed Systems Preprogrammed SystemsOne-Year Limited Warranty One-Year Limited WarrantyCorporation Uniden One-Year Limited Warranty Register Online Today