Radio Shack Racing Battery Pack AC/DC Charger Owner's Manual

Owner’s ManualCat. No. 20-513PRO-74 100-ChannelVHF/UHF/Air/800 MHzRace ScannerPlease read before using this equipment.20-513.fm Page 1 Wednesday, Au

10Charging Nickel-Cadmium BatteriesThe scanner has a built-in circuit that lets you recharge nickel-cadmiumbatteries while they are in the scanner. To

11Using Standard AC PowerYou can power the scanner from a standard AC outlet using an option-al AC adapter (such as Cat. No. 273-1665).Warning: Do not

12Using Vehicle Battery PowerTo power the scanner from your vehicle's cigarette-lighter socket, youneed a DC adapter, such as Cat. No. 270-1560.C

13When you finish using the DC adapter, disconnect it from the cigarette-lighter socket, then disconnect it from your scanner.Note: If the scanner doe

14Connecting an Optional AntennaThe scanner’s antenna jack makes it easy to use the scanner with avariety of antennas. Instead of either of the suppli

15CONNECTING AN EXTENSION SPEAKERIn a noisy area, an extension speaker (such as Cat. No. 21-549), posi-tioned in the right place, might provide more c

16Listening SafelyTo protect your hearing, follow these guidelines when you use an ear-phone or headphones.• Do not listen at extremely high volume le

17UNDERSTANDING YOUR SCANNER Once you understand a few simple terms we use in this manual andfamiliarize yourself with your scanner’s features, you ca

18RACE — lets you store car numbers and frequencies in the scanner’schannels, add and delete frequencies from car numbers, display carnumbers, and lis

19A LOOK AT THE DISPLAYThe display has indicators that show the scanner’s current operatingstatus. A good look at the display will help you understand

2FEATURESYour new RadioShack PRO-74 100-Channel VHF/UHF/Air/800 MHzRace Scanner lets you in on the action in the pits at the big race or onthe streets

20No. — appears when a car number is displayedMRN — appears with CH when you select the scanner’s marine servicebank (see “Service Banks” on Page 21).

21UNDERSTANDING BANKSMemory BanksTo make it easier to identify and select the channels you want to listento, the PRO-74’s channels are divided into 10

22Name Typical Usage Frequency Range(in MHz)Your scanner also has 7 preprogrammed weather frequencies.For example, if you wanted to search for transmi

23OPERATION TURNING ON THE SCANNER ANDSETTING SQUELCHNote: Make sure an antenna is connected to the scanner before youturn it on.1. Turn SQUELCH fully

24STORING KNOWN FREQUENCIESINTO CHANNELSGood references for active frequencies are the RadioShack “BeyondPolice Call,” “Aeronautical Frequency Directo

25• Your scanner automatically rounds the entered frequency to thenearest valid frequency. For example, if you enter a frequencyof 151.473, your scann

26To release hold and continue searching, press HOLD or holddown t or s for more than 1 second.Notes:• To step through the frequencies while HOLD is d

27Notes:• To step through the frequencies while HOLD is displayed, presst or s.• If you tune to a search skip frequency, L/O appears (see“Search Skip

28To skip a frequency, press S/S when thescanner stops on the frequency during asearch. The scanner stores the frequen-cy in memory and automatically

29Note: You cannot use this procedure to select a car number. See“Viewing Frequencies Associated with a Car Number” on Page 33 toselect a car number.T

3Hypersearch — lets you set the scanner to search at up to 300 stepsper second, to help you quickly find interesting broadcasts. (The nor-mal search

30LISTENING TO WEATHER BROADCASTSThe FCC (Federal Communications Commission) has allocated fre-quencies for use by the National Oceanic and Atmospheri

31USING THE PRO-74 AT THE RACESThe PRO-74 is specially designed to help you listen to communicationsat auto races. Drivers and their pit crews and cor

32Follow these steps to store a car number and frequency.1. Press MAN then RACE. RACE and Car No?--- appears.2. Enter the car number. If the number is

33Viewing Frequencies Associated with a Car NumberAfter you store a car number and associate frequencies with that num-ber, you can view all frequenci

34FINDING WHAT CAR NUMBERS ARE IN WHAT CHANNELSIf you are listening to a channel and want to know what car number youare hearing, simply press RACE tw

35SPECIAL FEATURESTURNING MEMORY BANKS ON AND OFFYou can turn each memory bank on and off. When you turn off a bank,the scanner does not scan any of t

36The scanner automatically designates each bank's first channel as itspriority channel. Follow these steps to select a different channel as thep

37USING THE KEYLOCKOnce you set up and store channels into your scanner, you can protectit from accidental changes by turning on the keylock feature.

38Notes: • You can use Hypersearch only in the 5 kHz step bands (29–54MHz and 137–174 MHz.• Since the marine service bank is not in one of the 5 kHz s

39SKIPPING DATA SIGNALSYou can set the scanner so it skips nonmodulated or data signals (suchas modem transmissions) during a search or scan. Note: Si

4Resume Start — the scanner saves its settings when you turn thepower off. This returns you to the function you were using if you acci-dentally turn t

40A GENERAL GUIDE TO SCANNINGReception of the frequencies covered by your scanner is mainly “line-of-sight.” That means you usually cannot hear statio

41Chan-nel No.Frequency Chan-nel No.FrequencyShip Shore Ship ShoreBirdie FrequenciesEvery scanner has birdie frequencies. Birdies are signals created

42To find the birdies in your particular scanner, begin by disconnecting theantenna and moving it away from the scanner. Make sure that no othernearby

43Primary UsageAs a general rule, most of the radio activity is concentrated on the fol-lowing frequencies:VHF BandUHF BandNote: Remote control statio

44FIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fire DepartmentHAM . . . . . . . . . . . . . . . .

4542.960–43.180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND43.220–43.680 . . . . . . . . . . .

46166.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, RTV, FIRE166.275–169.400 . . . . . . . . . . . .

47Conventional Systems Band – Locally Assigned851.0125–855.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

48TROUBLESHOOTINGIf you have problems, here are some suggestions that might help. Ifnone do, take your scanner to your local RadioShack store for as-s

49BATT.Lo appears.The batteries are weak.Recharge rechargeable batteries, or replace non-rechargeable batteries. PROBLEM POSSIBLE CAUSE REMEDYRESETTI

5FCC NOTICEYour scanner might cause radio or TV interference even when it is oper-ating properly. To determine whether your scanner is causing the int

50CARE AND MAINTENANCEYour RadioShack PRO-74 100-Channel VHF/UHF/Air/800 MHz RaceScanner is an example of superior design and craftsmanship. The fol-l

51SPECIFICATIONSFrequency Coverage ... 29–54 MHz (in 5 kHz steps)108–136.975 MHz (in 12.5 kHz steps)137–174 MHz (in 5 kHz

RadioShackA Division of Tandy CorporationFort Worth, Texas 76102UBZZ01292ZZ6A8 Printed in the PhilippinesLimited One-Year WarrantyThis product is warr

6CONTENTSPreparation ... 9Power Sources ...

7Special Features ... 36Turning Memory Banks On and Off ...

8PREPARATIONPOWER SOURCESYou can power your scanner from any of three sources: • Internal batteries (not supplied) • Standard AC power using an option

9Warning: Never set ALKALINE JACK NI-CD to NI-CD if you areinstalling non-rechargeable batteries. Non-rechargeable batteriescan get hot or explode