Uniden BCT8 manual Motorola Reception, Motorola Tracking

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BCT8 8/13/03 5:14 PM Page 43

Motorola Reception

Motorola Tracking

There are really two types of Motorola trunking systems. These are usually referred to as Type I and Type II systems. Type I only occurs on some 800 MHz systems. All VHF and UHF trunking systems use Type II.

One important distinction between these two systems is the amount of data transmitted by each radio when its push-to-talk button (PTT) is pressed. Every radio in a trunked system is assigned a unique ID so the central site computer can identify it when it’s used. Both Type I and Type II systems place radios (or radio users) into groups, called talkgroups, and these talkgroups are also assigned unique IDs. Some radios have access to only one talkgroup, while others have access to many talkgroups. The talkgroup(s) each radio can access is called the radio’s affiliation(s).

In a Type II system, when someone uses their radio, only the radio ID is transmitted when PTT is pressed, whereas in a Type I system the radio ID and its current affiliation are both transmitted when PTT is pressed.

Why the difference? Type II systems are slightly more advanced because the central computer maintains a database which is used to determine each radio’s affiliation(s).

Changes to a Type II system are easier than Type I because the system manager only needs to update the database instead of reprogramming individual radios.

Another difference between the systems is that Type I systems are arranged in a Fleet- Subfleet hierarchy. For example, its possible for a city using a Type I system to designate 4 Fleets, each with 8 Subfleets. Their fleets might be the Police Department, the Fire Department, Utilities, and Administration. The Police may decide to further divide their fleet into subfleets such as Dispatch, Tactical Operations, Detectives, North, South, East and West Side Patrols, and Supervisors. All the available police radios would then be assigned to one of the police subfleets. Determining the exact Fleet-Subfleet hierarchy for a particular area is referred to as Fleet Map Programming, which is discussed further in this manual.

The disadvantage of a Type I system is that when PTT is pressed, the brief burst of data must contain the radio’s ID and its Fleet and Subfleet. This is three times the amount of data a Type II system radio sends, and as a result Type I systems usually accommodate fewer users than Type II systems.

Even though there are many Type II systems, Type I systems are still in use. There are also Hybrid systems which are a combination of both Type I and Type II. Your scanner defaults to monitor Type II systems, but its possible to select a Preprogrammed Fleet Map or create a Custom Fleet Map for your area.

For VHF and UHF Type II trunking systems, you will need to know the base, spacing frequencies and offset channels. See page 45 for details.

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Contents Page Precautions Contents BCT8 8/13/03 513 PM LTR Introduction8 9 Front and Rear Views1718 Icon DisplayTerminology What is Scanning?What is Searching? What is Trunk Tracking?BCT8 8/13/03 513 PM Feature Highlights Scanner.uniden.com Where to Obtain More InformationInformation on the Internet Included with Your Scanner Package Optional AccessoriesConnecting the Antenna Plug Installing the BCT8For Home Use Desktop Installation For Mobile Use In-Car InstallationConnecting the Power Cord Installation for everyday use Mounting the Scanner in Your Vehicle Typical Mounting MethodsDC power Installation Applying Power for Vehicle InstallationListening Safely Applying Power Using Standard AC PowerConnecting an External Speaker Connecting the Clone CableTurn the Scanner On Scanning OverviewHow Squelch Works Setting the SquelchScanning Highway Patrol Frequency Highway Patrol ScanningSelecting the State Muting the Alert Tone Alert Tone VolumeHighway Patrol Scan Hold Highway Warning AlertPriority Channels Alert Light AdjustmentStoring Highway Patrol Frequencies Skip FrequenciesFlorida Trunked Highway Frequency Deleting a Stored Frequency Private Bank ScanningProgramming Frequencies into Channels Scanning Private Bank Duplicate Frequency AlertMemory Lock Channel Lockout Restoring a Locked-out Channel in Hold ModeHold/Resume Changing the Priority Channel Restoring All Locked-out ChannelsPriority Scan Service Scanning Band Search Setting a Search BandFrequency Skip Search Hold FeatureData Skip Storing Search Frequencies DelayTrunk Tracking Selecting Trunking System Type Programming Trunking FrequenciesProgramming Talk Group ID/Scan Lists Programming Trunking FrequenciesTo enter a Partial Edacs ID To enter a Type 2 Talk Group IDTo enter a Type 1 ID To enter a Full Edacs IDReceiving Trunked Systems ID Scan ModeTo directly access a specific ID location ID Scan Hold FeatureID Search Mode Deleting a Stored ID ID Monitor ModeID Search Hold and Direct Entry ID in Hold Mode Programming Scan Lists During SearchReview ID Lockout To restore a single ID, follow these stepsTo restore all locked out IDs in a bank once ID LockoutMoving between Scan List Memories Setting the Delay Mode for Trunking ModeSetting Priority in Trunking Mode Trunking Frequency ConfirmationMulti-Track Operational Details Multi-TrackProgramming Edacs System Frequencies Edacs ReceptionEdacs Tracking An Edacs Trunked system AFS Partial Entry Feature Special Edacs FeaturesLTR Tracking LTR ReceptionMotorola Tracking Motorola ReceptionProgramming a User Fleet Map Selecting Preset Fleet MapFleet Map Programming Programming a Hybrid System Toggling the Status Bit Control Channel Only ModeDisconnect Tone Detect Option End Code To program your scanner PC Control ModeRemote Interface To connect Scanner to PCScanner.uniden.com PC Control Parameter Clone ModeStart Remote Mode and Change Transfer Speed To connect the Scanner to Scanner Send data Receive data General Use Care and MaintenanceTroubleshooting BCT8 8/13/03 514 PM Specifications State Cord Order AppendixPreset Fleet Maps Size Code Type I Programming Information User Defined Fleet MapsFleet Map Size Codes Uniden America Corporation One Year Limited Warranty
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