Radio Shack PRO-72 owner manual US Patent Numbers

Page 55

Squelch Sensitivity:

 

Threshold

Less than 1.0 μV

Tight

(S+N)/N 25 dB

Antenna Impedance

50 Ohms

Audio Output Power (10% THD)

200 mW Nominal

Built-in Speaker

13/8 Inch (36 mm)

 

8 ohm, Dynamic Type

Power Requirements

9 V DC, 6 AA batteries

AC Adapter (Cat. No. 273-1665)

DC Adapter (Cat. No. 270-1560) Rechargeable Battery Pack (Cat. No. 23-288)

Current Drain (Squelched)

.....................................50 mA

Dimensions (HWD)

63/4 × 25/16 × 19/16 Inches

 

(171 × 59 × 40 mm)

Weight

8.5 oz

 

(240 g)

Supplied Accessory

Antenna

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

US PATENT NUMBERS

3,794,925

3,801,914

3,961,261

3,962,644

4,027,251

4,092,594

4,123,715

4,245,348

55

Image 55 Contents
PRO-72 50-Channel Portable Scanner Features Serial Number Page FCC Notice Scanning Legally Contents General Guide to Scanning Special FeaturesTroubleshooting Care and Maintenance SpecificationsUsing Batteries Power SourcesPreparation Page Page Using Standard AC Power Using Vehicle Battery Power Charging a Rechargeable Battery Pack Connecting the Antenna Connecting an Optional Antenna Connecting AN EARPHONE/ HeadphonesListening Safely Traffic SafetyUsing the Belt Clip Connecting AN Extension SpeakerYour Scanner Look AT the Keypad Page Look AT the Display Page Search Bands Understanding BANDS/MONITOR MemoryMonitor Memory Operation Turning on the SCANNER/ Setting Volume and SquelchManually Storing Frequencies Storing Active FrequenciesPage Band Search Page Direct Search Monitoring a Stored Channel Moving a Frequency from the Monitor Memory to a ChannelScanning the Channels Clearing a Channel Listening to the Monitor MemoryListening to a Weather Band Delay Special FeaturesLocking OUT a Channel Using the Display Backlight Turning the KEY Tone on and OFF Using the KeylockHam Radio Frequencies Guide to FrequenciesUS Weather Frequencies Other Weather Frequencies486.400 499.200 Birdie FrequenciesVHF Band Guide to the Action BandsUnited States Broadcast Bands Typical Band UsageActivities Primary UsageBand Allocation Specified IntervalsVery High Frequency VHF Government Band Ultra High Frequency UHF Frequency Conversion Problem Possible Causes Remedies TroubleshootingProblem Possible Remedies Causes Resetting the Scanner RESETTING/INITIALIZING the ScannerInitializing the Scanner Care and Maintenance Page Specifications US Patent Numbers Limited One-Year Warranty
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