Radio Shack PRO-2040 MHz and 450 kHz, Ohms, Watts maximum, 21/4-Inch 57 mm, 8-ohm, dynamic type

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20-414.fm Page 42 Wednesday, August 4, 1999 11:12 AM

IF Frequencies	10.8 MHz and 450 kHz
Antenna Impedance	50 Ohms
Audio Power	1.3 Watts maximum
Built-In Speaker	21/4-Inch (57 mm), 8-ohm, dynamic type
Power Requirements	AC 120 Volts, 60 Hz
Current Drain	DC 240 mA (squelched)
	DC 400 mA (full volume unsquelched)
Dimensions	23/4 × 77/8 × 73/4 Inches (HWD)
	70 x 200 x 195 mm
Weight	1.4 lbs
	(640 g)

Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.

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Contents Fm Page 1 Wednesday, August 4, 1999 1112 AM Features Fm Page 3 Wednesday, August 4, 1999 1112 AM FCC Notice Contents Scanning Legally Memory Backup Connecting PowerUsing Standard AC Power PreparationUsing Vehicle Battery Power Connecting AN Antenna Telescoping AntennaOptional Outdoor Antenna Resetting the SCANNER’S Display Connecting AN EARPHONE/ HEADPHONES/ External Speaker Initializing ScannerTraffic Safety Listening SafelyUnderstanding Your Scanner Look AT the Front PanelEnters the up or down direction in the search mode Programs a 2-second delay for the selected chanStores frequencies into and accesses the 10 moni Turns the data skip feature on and offLook AT the Display Appears when you program a channel for a two-second Appears when you manually select a locked channel, orDuring a search hold when the frequency is stored Delay before scanning or when you listen to a channelUnderstanding the SCANNER’S Memory Channel-Storage BanksMonitor Memories Turning on the SCANNER/SETTING the Volume and Squelch OperationFinding Birdie Frequencies Manually Storing Frequencies in Channels Searching for and Temporarily Storing Active Frequencies Limit SearchDirect Search Search Skip Memory Listening to Monitor Memories Moving a Frequency from a Monitor Memory to a Channel Scanning the Stored ChannelsManually Selecting a Channel Turning Channel-Storage Banks On and OffListening to the Weather Band Special Features Using the 2-SECOND DelayDesignating a Priority Channel Locking OUT Channels Changing Scanning and Search SpeedsPRO-2040 has two scan and three search speeds Type Speed Detecting Data Signals General Guide to Scanning Guide to FrequenciesGuide to the Action Bands HF Band 3.00-30.0 MHz Typical Band UsagePrimary Usage VHF Band 30.00-300.0 MHzBand Allocation UHF BandAbbreviations High Frequency HF- 3 MHz-30 MHz Very High Frequency VHF- 30 MHz-300 MHzVHF-Hi Band 148-174 MHz Ultra High Frequency UHF- 300 MHz-3 GHz Low Band 450-470 MHzFrequency Conversion Trunked Systems Band Locally AssignedTroubleshooting Care and Maintenance Specifications Ohms DC 400 mA full volume unsquelchedMHz and 450 kHz Watts maximumFm Page 43 Wednesday, August 4, 1999 1112 AM Radio Shack