Radio Shack PRO-91 owner manual Preparation, Power Sources, Using Internal Batteries

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20-521.fm Page 9 Wednesday, August 4, 1999 3:32 PM

PREPARATION

POWER SOURCES

You can power your scanner from any of three sources:

•Internal batteries (not supplied)

•Standard AC power (using an optional AC adapter)

•Vehicle battery power (using an optional DC adapter)

Using Internal Batteries

You can power your scanner using four AA batteries. For the longest operation and best performance, we recommend alkaline batteries (such as Cat. No. 23- 552).

You can also use four rechargeable nickel-cadmium batteries (Cat. No. 23-125). Before you use nickel-cad- mium batteries, you must charge them (see “Charging Nickel-Cadmium Batteries” on Page 11).

Follow these steps to install batteries.

1.Turn VOLUME/OFF counterclockwise until it clicks to make sure the power is turned off.

2.Slide up and hold the tab on the back of the scan- ner, then pull up the battery compartment cover.

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Contents PRO-91 150-Channel Handheld Trunking Scanner Features Fm Page 3 Wednesday, August 4, 1999 332 PM Frequency Step Transmission Range MHz KHz Scanning Legally FCC NoticeContents Special Features Trunk TrackingGeneral Guide to Scanning Fm Page 8 Wednesday, August 4, 1999 332 PM Power Sources Using Internal BatteriesPreparation Fm Page 10 Wednesday, August 4, 1999 332 PM Charging Nickel-Cadmium Batteries Using AC Power Using Vehicle Battery Power Plug the adapter’s barrel plug into your scanner’s Connecting an Optional Antenna Connecting the AntennaConnecting AN EARPHONE/ Headphones Traffic SafetyListening Safely Attaching the Belt Clip Connecting AN Extension SpeakerAbout Your Scanner Look AT the Keypad Look AT the Display Fm Page 21 Wednesday, August 4, 1999 332 PM Service Banks Understanding BanksChannel Storage Banks Monitor Memories Operation Turning on the Scanner and Setting SquelchStoring Known Frequencies Into Channels Limit Search Searching for and Temporarily Storing Active FrequenciesDirect Search Service 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 ChannelsFm Page 32 Wednesday, August 4, 1999 332 PM Special Features DelayTurning CHANNEL-STORAGE Banks on and OFF Priority Locking OUT ChannelsFm Page 35 Wednesday, August 4, 1999 332 PM Using the Display Backlight Using the KeylockChanging Search Speeds Normal Search HypersearchTurning the KEY Tone OFF/ON Turning the Battery Save Function OFF/ONSkipping Data Signals Types of Trunking Systems Trunk TrackingII systems. Nevertheless, Type I systems are still in use Setting the Scanner to the Trunk Tracking ModeStoring Trunked Frequencies Setting Squelch for the Trunk Tracking ModeFm Page 42 Wednesday, August 4, 1999 332 PM Scanning a Trunked Bank Temporarily Storing an ID into the Monitor ID Memory Monitoring an Active IDLocking Out IDs Unlocking a Single IDUnlocking All IDs Monitoring IDs Using Trunk Tracking Scan DelayChannel Activity Bars Manually Storing IDs into Scan Lists Scan ListsDeleting a Stored ID Moving IDs to Scan ListsScanning Type I and Hybrid Trunked Systems Scanning the Scan ListsProgramming a Fleet Map Size Fleets Subfleets IDs Blocks Used E1P1 E1P2 E1P3 Size E1P4 E1P5 E1P6 Size Selecting a Preset Fleet Map Programming a Hybrid System Guide to Frequencies General Guide to ScanningNational Weather Frequencies Canadian Weather FrequenciesTypical Band Usage Guide to the Action BandsPrimary Usage VHF BandAbbreviations Band AllocationVery High Frequency VHF Ultra High Frequency UHF Frequency Conversion Problem Possible Remedy Cause TroubleshootingError Adjust squelch for Resetting the Scanner Care and Maintenance Specifications Fm Page 69 Wednesday, August 4, 1999 332 PM Fm Page 70 Wednesday, August 4, 1999 332 PM Fm Page 71 Wednesday, August 4, 1999 332 PM RadioShack Division of Tandy Corporation Fort Worth, Texas Limited One-Year Warranty

PRO-91 specifications

The Radio Shack PRO-91 is a handheld scanner that appeals to both amateur radio enthusiasts and professionals seeking a reliable and versatile communication device. Known for its user-friendly design and wide range of features, the PRO-91 is an excellent choice for monitoring various frequencies, including VHF and UHF bands.

One of the standout features of the PRO-91 is its capability to scan frequencies in the 25-1300 MHz range, which allows users to listen in on a variety of communications. This includes police, fire, and emergency services, as well as amateur radio transmissions and aircraft communications. The scanner supports both analog and some digital formats, making it adaptable to different communication standards and ensuring users stay updated with relevant broadcasts.

The PRO-91 comes with 200 programmable channels, allowing users to store their favorite frequencies for quick access. It also features a million frequency search capability, enabling it to detect active signals within the scanning range. Additionally, the scanner includes a priority channel function, permitting users to designate a specific frequency to continuously monitor while scanning through other channels.

Another notable characteristic of the PRO-91 is its triple conversion design, which enhances sensitivity and selectivity, resulting in improved audio clarity and reduced interference. The unit is equipped with a robust speaker that delivers clear sound quality, making it easy to understand transmissions even in noisy environments.

Users will appreciate the ergonomic design of the PRO-91, which features intuitive controls and a backlit LCD display for easy visibility, even in low-light conditions. The keypad layout is designed for straightforward operation, allowing even novice users to navigate through menus and settings with ease.

The PRO-91 is powered by a rechargeable battery, offering extended usage without the need for constant battery replacements. Its compact and lightweight construction makes it portable, making it suitable for on-the-go monitoring.

In conclusion, the Radio Shack PRO-91 offers an impressive array of features, technologies, and characteristics that cater to diverse scanning needs. With its wide frequency range, programmable channels, and superior audio quality, it stands out as a reliable choice for anyone looking to explore the world of radio communication. Whether for recreational use or professional monitoring, the PRO-91 ensures users remain connected to the signals that matter most.
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