Radio Shack PRO-94 owner manual Setting the Scanner to the Trunking Mode, Simultaneous Trunking

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centralize their communications and control the type of users on a single system. Determining the exact fleet- subfleet hierarchy for a particular area is referred to as fleet map programming.

The disadvantage of a Type I system is that the brief burst of data sent when a user transmits must contain the radio’s ID, its fleet information, and the subfleet infor- mation as well. This is three times the amount of data a Type II system radio sends. Since the data capacity of Type I systems is limited and the total amount of data in- creases with each user, Type I systems usually accom- modate fewer users than Type II systems. Nevertheless, Type I systems are still in use.

There are also hybrid systems which are a combination of Type I and Type II. Your scanner is preset to monitor Type II systems, but you can change to Type I or a hy- brid of Type I and Type II systems by selecting a prepro- grammed fleet map or creating a custom fleet map for your area (see “Scanning Type I and Hybrid Trunked Systems” on Page 51).

SETTING THE SCANNER TO THE TRUNKING MODE

Simultaneous Trunking

The scanner allows you to track up to 10 systems at a time. You can trunk scan or search and scan conven- tional frequencies at the same time. You can also pro- gram conventional frequencies in the same bank as trunking systems.

After the scanner is finished checking activity in the trunked system, it scans other conventional frequencies in the bank. (Only trunking frequencies are programmed in trunk mode.)

If a system is inactive for 1 second and there are no con- ventional channels in the bank, the scanner starts scan- ning the next selected trunk bank. If you turned DELAY on, the scanner starts scanning the next trunk bank after about 5 seconds.

Trunking Operation

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Contents PRO-94 1000-Channel Handheld Trunking Scanner Contents Trunking Operation Special FeaturesTroubleshooting Care and Maintenance SpecificationsGeneral Guide to Scanning Features Features Features Frequency Step Range MHz KHz Transmission FCC NoticeScanning Legally Using Internal Batteries Using Non-Rechargeable BatteriesPreparation Preparation11 12Preparation Using Rechargeable BatteriesUsing AC Power Using Vehicle Battery Power Connecting the Antenna Connecting AN EARPHONE/ HeadphoneConnecting an Optional Antenna Listening Safely Traffic SafetyAttaching the Belt Clip Connecting AN Extension SpeakerAbout Your Scanner Key Functions Look AT the KeypadLook AT the Display NumberKeys About Your Scanner Service Banks Understanding BanksChannel Storage Banks Monitor Memories Turning on the Scanner Setting Squelch OperationStoring Known Frequencies Into Channels Searching for and Temporarily Storing Active Frequencies Direct Search Limit SearchService Bank Search Search Skip Memory Moving a Frequency from a Monitor Memory to a Channel Listening to the Monitor MemoriesManually Selecting a Channel Scanning the Stored ChannelsSpecial Features DelayTurning CHANNEL-STORAGE Banks on and OFF Priority Locking OUT ChannelsUsing the Keylock Turning the Keytone OFF/ON Using the Display BacklightUsing the Auto Backlight Display Changing Search SpeedsTurning the Battery Save Function OFF/ON Skipping Data SignalsReceiving NWR-SAME Weather Alert Signals Same Signal Detection Updating Turning On the Same Weather Alert FeatureNWR-SAME Code Detection Tests NWR-SAME Alert Tone TestTypes of Trunking Systems Trunking OperationSimultaneous Trunking Setting the Scanner to the Trunking ModeSetting Squelch for the Trunking Mode Storing Trunked FrequenciesYou See Trunk System Motorola Type II, 900 MHz frequencies Motorola Type II, VHF frequenciesMotorola Type II, UHF frequencies Turning a Trunked Bank On or Off Searching a Trunked BankTurning the Status Bit Ignore S-Bit On or Off Skipping a Trunked BankPress 0 1 . SRC Limit Identifying a Trunked FrequencySelecting the Edacs Talk Group ID Format Edacs Talk Group ID Range SearchLocking Out Talk Group IDs Using Hold to Monitor an Active Talk Group IDUsing Trunk Scanning Scan Delay Unlocking a Single Talk Group IDUnlocking All Talk Group IDs Monitoring Talk Group IDs Channel Activity BarsManually Storing Talk Group IDs in Talk Group ID Lists Using Talk Group ID Lists01 . E Entering Edacs Partial Talk GroupsMoving Talk Group IDs to Talk Group ID Lists You Press To ScanScanning the Talk Group ID Lists Deleting a Stored Talk Group ID ListPriority Talk Group ID Scanning Scanning Type I and Hybrid Trunked Systems E1P4 E1P5 E1P6 E1P1 E1P2 E1P3E1P7 E1P8 E1P9 E1P10 E1P11 E1P12E1P13 E1P14 E1P15 Selecting a Preset Fleet Map E1P16Press Data ALT Programming a Fleet Map Prog then TrunkSize Code Block Programming the Base Offset Frequencies Turning On/Off the Motorola Disconnect Tone Detect Function Programming a Hybrid SystemBirdie Frequencies General Guide to ScanningGuide to Frequencies National Weather FrequenciesVHF Band Guide to the Action BandsTypical Band Usage Primary UsageAbbreviations Services Band AllocationUHF Band Amateur Band 144-148 MHz VHF Low Band- 29-50 MHz in 5 kHz stepsAmateur Band 50-54 MHz Aircraft Band- 108-137 MHzVHF High Band 148-174 MHz Government Band 406-420 MHz 406.125-419.975Cm Amateur Band 420-450 MHz 856.0125-860.9875 Public Safety Band Locally AssignedLow Band 450-470 MHz Conventional Systems Band Locally AssignedFrequency Conversion Troubleshooting Problem Possible Cause RemedySquelch is not BATT. Lo Troubleshooting67 Resetting the Scanner Care and Maintenance Search Speed SpecificationsSquelched 70 mA Limited Ninety-Day Warranty

PRO-94 specifications

The Radio Shack PRO-94 is a versatile and feature-rich handheld scanner that has garnered attention from both amateur radio enthusiasts and professional users alike. Renowned for its accessibility and performance, the PRO-94 serves as an ideal device for those looking to stay connected with various radio frequencies.

One of the main features of the PRO-94 is its ability to receive a wide range of frequencies. The scanner covers VHF low and high bands, UHF, and even the 800 MHz frequency range, allowing users to pick up signals from local police, fire departments, amateur radio operators, and more. This broad frequency range ensures that users can monitor diverse communications and stay informed about local events.

The scanner is equipped with an advanced trunk-tracking technology that allows it to follow trunked radio systems. This is particularly useful for monitoring state and local emergency services, as many of these organizations have migrated to trunked systems to maximize channel efficiency. The PRO-94 simplifies this process by automatically scanning through the trunked frequencies, making it easy for users to catch important dispatches without manual adjustments.

Another standout characteristic of the PRO-94 is its 200 memory channels. Users can program these channels to store specific frequencies, making quick access seamless. The scanner also supports multiple banks, allowing for organized grouping of channels, which is advantageous for users who monitor different types of services or agencies.

With its user-friendly interface, the PRO-94 includes an LCD display that shows relevant information, such as the frequency being received or the bank and channel currently in use. The keypad is designed for efficient navigation, making it straightforward to enter frequency modes and access programmed channels easily. Additionally, the scanner features priority channels, which allow users to monitor certain frequencies continuously, ensuring they do not miss critical communications.

The PRO-94 runs on AA batteries, providing convenience in terms of power supply. Its compact size and lightweight design ensure portability, enabling users to take it on the go, whether on a hiking trip or during community events.

In summary, the Radio Shack PRO-94 stands out as a robust and user-friendly handheld scanner. Its diverse frequency reception, trunk-tracking technology, extensive memory capabilities, and portable design make it a compelling choice for anyone keen on monitoring radio communications.
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