Radio Shack PRO-2045 owner manual Connecting AN Amplified Extension Speaker, Traffic Safety

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Traffic Safety

Do not wear an earphone or head- phones while operating a motor vehi- cle. This can create a traffic hazard and can be illegal in some areas.

Even though some earphones and headphones let you hear some out- side sounds when listening at normal volume levels, they still can present a traffic hazard.

CONNECTING AN AMPLIFIED EXTENSION SPEAKER

In a noisy area, an amplified extension speaker might provide more comfort- able listening. Plug the speaker ca- ble’s 1/8-inch (3.5 mm) mini plug into

the scanner’s jack. This discon- nects the internal speaker.

Note: RadioShack stores sell an am- plified communications extension speaker.

INSTALLING AN

OPTIONAL CTCSS

TONE BOARD

The scanner’s CTCSS (Continuous Tone Control Squelch System) feature lets you choose to listen only to trans- missions that transmit one of 38 stan- dard CTCSS tones. To use CTCSS, you must install an optional CTCSS tone board (Cat. No. 20-0031).

Cautions:

•Make sure the scanner is off and disconnect the power before you install a CTCSS tone board.

•Discharge static electricity buildup by touching a metal object before you open the scanner.

1.Use a Phillips screwdriver to remove the two side screws on the scanner’s top cover and three screws on the bottom.

Caution: The scanner’s speaker is attached to the top cover and the circuit board. Use care when you remove the top cover to not damage the speaker or its con- nector.

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Contents PRO-2045 Features Page FCC Notice Scanning LegallyContents Troubleshooting Care and Maintenance Specifications Connecting Power Using Standard AC PowerUsing Vehicle Battery Power PreparationConnecting AN Antenna Telescoping AntennaOptional Outdoor Antenna Resetting Scanner Using the FeetTesting Alert Operation Testing Alert ReceptionConnecting AN Earphone Testing the Weather AlertListening Safely Connecting AN Amplified Extension Speaker Installing AN Optional Ctcss Tone BoardTraffic Safety Ctcss Board Understanding Your Scanner Look AT the KeyboardPage FREQ, CHAN, Lock shows the rotary tuner’s current setting Look AT the DisplayUnderstanding CHANNEL-STORAGE Banks Monitor MemoriesChannel-Storage Banks Using the Rotary Control OperationStoring Frequencies Searching for and Temporarily Storing Active Frequencies Limit SearchDirect Search Search Skip Automatically Storing Frequencies Listening to Monitor Memories Moving a Frequency from a Monitor Memory to ChannelScanning Channels Turning Channel-Storage Banks On and OffManually Selecting a Channel Locking Out ChannelsUsing the Weather Alert Standby Mode Scanning Weather BandWeather Alert Special Features DelayPriority Using Programmable Attenuator Changing Search SpeedsUsing Auto Sort Skipping Data SignalsTurning on or OFF the KEY Tone Transferring a Frequency to Another Channel Transferring to an Empty ChannelTransferring to a Channel that has a Stored Frequency Exchanging Frequencies Between Two Programmed ChannelsUsing the Count Feature Using CtcssCtcss Tone Frequencies Assigning a Ctcss Tone Frequency to a Channel Changing or Deleting a Ctcss Tone Frequency for a ChannelNational Weather Service Frequencies General Guide to ScanningGuide to Frequencies Ham Radio FrequenciesBirdie Frequencies Guide to the Action Bands Typical Band UsageSpecified Intervals Primary UsageBand Allocation BifcHigh Frequency HF 29 MHz-30 MHz AIR Frequency Conversion CSBTroubleshooting Care and Maintenance Specifications Dimensions /4 × 91/4 × 81/16 Inches HWD 82 × 235 × 205mm RadioShack