Radio Shack PRO-2052 owner manual Trunk Scanning, Types of Trunking Systems

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TRUNK SCANNING

Your scanner is designed to track transmissions on Motorola Type I, Type II, GE/Ericsson EDACS, and hy- brid analog trunking systems. Re- member these important points when tracking transmissions:

•Your scanner monitors Type II systems by default. However, you can change this if the system in your area is different (see “Types of Trunking Systems” on this page and “Scanning Type I and Hybrid Trunked Systems” on Page 40 for more information).

•Your scanner tracks a trunked system or scans frequencies in conventional mode, but it cannot do both at the same time.

•The frequencies for many of the 800 MHz public safety systems are listed in the separate “National Public Safety Trunked System Frequency & Talk Group Guide” included with this scanner.

TYPES OF TRUNKING SYSTEMS

Your trunk scanning scanner can monitor three basic types of systems

—Type I, Type II, and EDACS. In- stead of selecting a specific frequency to transmit on, a trunked system chooses one of several frequencies in a 2-way radio user’s talk group when that user presses PTT (push to talk). Thus, trunking systems allocate a few frequencies among many different us- ers, but the way Type I and Type II systems do this is slightly different.

One important distinction between these systems is the amount of data transmitted by each radio when its PTT button is pressed. In a Type I system, the radio’s talk group ID and its current affiliation (the trunk system it belongs to) are both transmitted. In a Type II system, only the radio’s talk group ID is transmitted.

Why the difference? In Type I sys- tems, each radio in the trunk group in- dividually transmits its own affiliation, while the trunk system maintains a da- tabase that determines each radio's affiliation(s) in Type II systems.

Another difference between the sys- tems is that Type I systems are ar- ranged in a fleet-subfleet hierarchy. For example, it is possible for a city using a Type I system to designate four fleets, each with eight subfleets.

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Contents PRO-2052 Channel Dual Trunking TrunkTracker Home Scanner Features IntroductionPage Your PRO-2052 scanner can receive these bands Frequency Types Range MHz TransmissionsFCC Notice Scanning LegallyContents PC Remote Function TroubleshootingCare and Maintenance Specifications General Guide to ScanningConnecting an Outdoor Antenna Connecting AN AntennaConnecting the Supplied Antenna PreparationConnecting Power Using AC PowerConnecting AN Extension Speaker Using Your Vehicle’s Battery PowerConnecting AN Earphone Headphones Listening SafelyUnderstanding Your Scanner Turns the scanner on or off and adjusts the volumeAdjusts the scanner’s squelch Look AT the Front PanelSVC service Look AT the Display PUBScan Search Understanding Trunking Service BanksUnderstanding Banks Channel Storage BanksTurning on the Scanner and Setting Squelch OperationStoring Known Frequencies Into Channels Searching Service Banks Limit Search Scanning the Stored Channels Deleting a Frequency from a ChannelPriority Changing Priority Channels Locking Out Priority ChannelsTurning CHANNEL- Storage Banks on and OFF Special FeaturesDelay Locking OUT Channels FrequenciesTurning the KEY Tone on and OFF Locking Out ChannelsLocking Out Frequencies Changing Search Speeds Skipping Data SignalsUsing NWR-SAME and Weather Alert Normal Search HyperSearchWhen a Weather Alert Occurs Understanding Fips CodesObtaining Your Area’s Fips Codes Turning on the Same and Weather AlertTesting the Alert Beep Entering Your Area’s Fips CodesTesting NWR-SAME Code Detection Trunk Scanning Types of Trunking SystemsSetting Squelch for the Trunk Scanning Mode Programming Trunked Frequencies Scanning a Trunked Bank You See Trunk SystemTurning Banks On or Off During Trunk Scanning Skipping the Trunked BankTurning Status Bit Ignore On or Off Identifying a Trunked Frequency Switching Edacs FormatUsing Trunk Scanning Scan Delay Edacs ID Range SearchUnlocking a Single ID Monitoring an Active IDLocking Out IDs Unlocking All IDsChannel Activity Indicators Monitoring IDSScan Lists Manually Storing IDs into Scan Lists Storing IDs into Scan Lists While SearchingDeleting a Stored ID Scanning the Scan ListsAutomatically Storing an ID in a Scan List Location Priority ID ScanningScanning Type I and Hybrid Trunked Systems Size Fleets Sub IDs Block UsedS12 E1P1 E1P2 Block Size CodeE1P3 E1P4 Block Size Code S12 E1P7 E1P8 Block Size Code E1P3 E1P4 Block Size CodeE1P5 E1P6 Block Size Code E1P7 E1P8 Block Size Code E1P9 E1P10 E1P11 E1P12Selecting a Preset Fleet Map E1P13 E1P14 Block Size CodeE1P15 E1P16 Block Size Code Programming a Fleet Map Programming a Hybrid SystemProgramming the Base and Offset Frequencies Turning the Motorola Disconnect Tone Detect Function On/Off Scanner Settings Connecting Scanner to a ComputerSoftware Settings PC Remote FunctionTurning the Remote Function on and OFF PC to Scanner CommandsFor this operation Type this Command KEY02 #PC to Scanner Functions List PM### ######## PC nPC n### SS##ILR xyy-zz RF########IL### ILR nnnnnnRG @ PI #PI @# TG * @%& ##-$$Scanner to PC Responses Code MeaningScanner Mode Codes Code For this ModeEdacs ID Lockout Review Edacs Search Control Channel 21 VFO National Weather Frequencies General Guide to ScanningGuide to Frequencies Birdie FrequenciesVHF Band Guide to the Action BandsTypical Band Usage MHz UHF BandVHF Band Activities Frequencies MHz Band AllocationPrimary Usage UHF Band Activities Frequencies MHzAbbreviations Services Government Band 137-144 MHz Meter Amateur Band 50-54 MHzAircraft Band 108-136 MHz Meter Amateur Band 144-148 MHzVHF High Band 148-174 MHz Meter Amateur Band FM-TV Audio Broadcast, VHF Wide Band 174-216 MHzNew Mobile Narrow Band 220-222 MHz Military Aircraft Band 237.9-287.8 MHzConventional/Trunked Systems Band Locally Assigned Public Safety Band Locally AssignedConventional Systems Band Locally Assigned Trunked Systems Band Locally AssignedFrequency Conversion Troubleshooting DC 12V jackScan for another transmis Resetting Scanner Care and Maintenance Specifications Search Speed Page Page Fort Worth, Texas Limited One-Year WarrantyDivision of Tandy Corporation RadioShack
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PRO-2052 specifications

The Radio Shack PRO-2052 is a versatile and feature-rich scanner that has captured the attention of amateur radio enthusiasts and professionals alike. This desktop scanner is designed to receive a wide array of frequencies across various bands, making it a valuable tool for monitoring communications.

One of the standout features of the PRO-2052 is its ability to monitor VHF, UHF, and some trunked radio systems. It boasts a wide frequency coverage range from 25 MHz to 1.3 GHz, covering conventional FM, AM, and even the digital communications that have become increasingly popular. This extensive coverage ensures that users can receive a plethora of broadcasts, from local police and fire departments to amateur radio operators and public service communications.

Another significant feature is the scanner's memory capacity, which allows users to store up to 300 channels. This capability is particularly beneficial for those who frequently listen to multiple frequencies, as it provides the flexibility to switch between channels seamlessly. The scanner also supports the ability to organize channels into banks, making it even easier to manage multiple frequencies.

The PRO-2052 comes equipped with a variety of scanning modes, including Narrowband and Wideband scanning, which cater to different listening preferences and needs. Users can employ the Delay function that pauses scanning for a brief period after a transmission is detected, ensuring that they don’t miss any important information. Furthermore, the Priority Scan feature enables monitoring of a selected channel while still continuously scanning other frequencies, adding another layer of functionality.

In terms of usability, the PRO-2052 is designed with a clear and intuitive interface, featuring a backlit LCD that makes it easy to read in various lighting conditions. Its control panel is user-friendly with dedicated keys for commonly used functions, allowing both beginners and seasoned professionals to operate the device with ease.

Furthermore, the scanner has built-in weather alert capabilities, offering users prompt notifications about severe weather conditions, ensuring safety and preparedness. The PRO-2052 is powered either by an AC adapter or batteries, providing the flexibility to operate in various environments.

In summary, the Radio Shack PRO-2052 is a powerful and user-friendly scanner that offers a rich set of features, making it a top choice for those interested in radio communications. Its extensive frequency range, substantial memory capacity, and multiple scanning modes make it suitable for a wide variety of applications, proving to be a reliable companion for enthusiasts and professional users alike.
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