Radio Shack PRO-91 User Manual

Owner’s ManualCat. No. 20-521PRO-91 150-ChannelHandheld Trunking ScannerPlease read before using this equipment.20-521.fm Page 1 Wednesday, August 4

103. If you are installing alkaline batteries, use apointed object such as a pencil to set ALKALINE JACK NI-CD inside the compartment toALKALINE. Or

11If BATT.Loflashes and the scanner beeps every 15seconds, replace (standard/alkaline) or recharge (re-chargeable nickel-cadmium) the batteries.Cautio

12Important: At the end of a rechargeable battery’s use-ful life, it must be recycled or disposed of properly.Contact your local, county, or state haz

131. Turn VOLUME/OFF counterclockwise until it clicksto make sure the power is turned off.2. Plug the adapter’s 3.4 mm outside diameter/1.3mm inside d

141. Turn VOLUME/OFF counterclockwise until it clicksto make sure the power is turned off.2. Set the adapter’s voltage switch to 9V.3. Connect the 3.4

15CONNECTING THE ANTENNAFollow these steps to attach the supplied flexible anten-na to the connector on the top of your scanner.1. Align the slots aro

16CONNECTING AN EARPHONE/HEADPHONESFor private listening, you can plug an earphone ormono headphones (such as Cat. No. 33-178 or 20-210) into the ja

17CONNECTING AN EXTENSION SPEAKERIn a noisy area, an extension speaker (such as Cat. No.21-549), positioned in the right place, might providemore comf

18ABOUT YOUR SCANNEROnce you understand a few simple terms we use in thismanual and familiarize yourself with your scanner’sfeatures, you can put the

19A LOOK AT THE KEYPADYour scanner’s keys might seem confusing at first, butthis information should help you understand each key’sfunction.HOLD — hold

2FEATURESYour RadioShack PRO-91 150-Channel HandheldTrunking Scanner is one of a new generation of scan-ners designed to track Motorola Type I and Typ

20DELAY — programs a 2-second delay for the selectedchannel, a limit search, or each service scan; programsa 5-second delay while trunk tracking.t — s

21 (trunking channel activity bars) — each represents areceived trunking frequency or a data frequency whiletrunk tracking (see “Channel Activity Bars

22MON — appears during search modes or when youselect a monitor memory. The number to the right ofthis indicator shows the current monitor memory num-

23Monitor MemoriesThe scanner also has 5 temporary memory locationscalled monitor memories. You can use these monitormemories to temporarily store fre

24OPERATION TURNING ON THE SCANNERAND SETTING SQUELCHNote: Make sure the scanner’s antenna is connectedbefore you turn it on.1. Turn SQUELCH fully cou

25STORING KNOWN FREQUENCIES INTO CHANNELSGood references for active frequencies are Ra-dioShack's “Beyond Police Call,” “Aeronautical Fre-quency

26• Your scanner automatically rounds the enteredfrequency to the nearest valid frequency. Forexample, if you enter a frequency of 151.473,your scanne

272. Enter the frequency that is the lower limit of therange you want to search (including the decimalpoint), then press E.3. Press LIMIT. Hi and 956.

28Notes:• If you want to start the search from a frequencyalready stored in one of your scanner’s chan-nels, press MAN or PROG, use the number keysto

29When the scanner stops on a transmission, quicklypress either:•HOLD to stop searching so you can listen to thetransmission. HOLD appears.•MON/CLEAR

3Five Channel-Storage Banks — you can store up to30 channels in each of 5 different banks to group chan-nels so you can more easily identify calls.Fiv

30Notes:• If you marked all frequencies to be skipped withinthe search range, the scanner beeps 3 times anddoes not search.• If you program more than

313. Press MON/CLEAR and enter the number of themonitor memory that contains the frequency youwant to store.4. Press E. The scanner stores the frequen

32Or, if your scanner is scanning and stops at the desiredchannel, press MAN one time. (Pressing MAN addition-al times causes your scanner to step thr

33SPECIAL FEATURESDELAYMany agencies use a two-way radio system that mighthave a period of 2 or more seconds between a queryand a reply. To keep from

34The scanner scans all the channels within the dis-played banks that are not locked out (see “Locking OutChannels”).Notes:• You can manually select a

351. Press PROG.2. Enter the channel number you want to select asthe priority channel, then press PRIORITY. appears to the right of the channel number

36USING THE KEYLOCKOnce you program your scanner, you can protect itfrom accidental program changes by turning on thekeylock feature. When locked, the

37TURNING THE KEY TONE OFF/ONTo turn off the key tone, follow these steps.1. Turn off the scanner.2. While holding down L-OUT/S/S, turn on the scan-ne

38SKIPPING DATA SIGNALSYou can set the scanner so it skips nonmodulated ordata signals (such as fax or modem transmissions)during a search or scan.Not

39TRUNK TRACKINGYour scanner is designed to track transmissions on Mo-torola Type I, Type II, and hybrid analog trunking sys-tems, which are extensive

4Flexible Antenna with BNC Connector — providesexcellent reception and is designed to help prevent an-tenna breakage. Or, you can connect an external

40The fleets might be the police department, the fire de-partment, utilities, and city administration. The policemight decide to further divide its fl

41SETTING SQUELCH FOR THE TRUNK TRACKING MODEYour scanner’s squelch setting is automatically adjust-ed during trunk tracking, which means it is not ne

42Before scanning a trunked system’s transmissions, youmust store the trunked system’s frequencies in one ofthe banks in your scanner by following the

436. Press SRC to beginsearching for the trunk’sdata channel (the channelthat controls the trunk).SEARCH flashes as thescanner searches for thedata ch

44Hint: While scanning, you will not know exactly whothe IDs are assigned to until you listen awhile or untilyou locate ID lists in frequency guides o

45Locking Out IDsAs with conventional scanning, it is possible to lock outunwanted traffic. This is particularly important in trunk-ed systems because

46Using Trunk Tracking Scan DelayMany trunked systems have a period of 2 or more sec-onds between a query and a reply. You can program a5-second delay

47CHANNEL ACTIVITY BARSYour scanner has 20 channel activity indicators (bars)which show the activity taking place on a trunked sys-tem. You can see ho

48SCAN LISTSWhen you program trunked frequencies into a bank(see “Storing Trunked Frequencies” on Page 41), yourscanner sets up 5 scan lists into whic

49Or, to enter a Type I ID:a. Use the number keys to enter the block numberand fleet number, then press •.b. Enter the subfleet number, then press E.N

5We recommend you record your scanner’s serial num-ber here. The number is on the back panel.Serial Number: ___________________________ FCC NOTICEYour

50SCANNING THE SCAN LISTSPress SCAN to begin scanning the lists you havestored. Note: If you have not stored any IDs, SCAN scrolls onthe display, but

514. Press again.5. Repeatedly press s or t to select the name of themap you want (such as E1P7). The prepro-grammed fleet map appears. 6. Press E,

52When a Type I system is designed, the address infor-mation for all its user IDs is divided into 8 equal-sizeblocks, numbered 0–7, and each block is

53The size codes selected by a Type I system designerdepend on the specific needs of the system's users.Some organizations might want many subfle

54E1P4 E1P5 E1P6BlockSizeCode BlockSizeCode BlockSizeCode0S120S40S31 (S12) 1 S4 1 S102 S4 2 S12 2 S43S43(S12)3S44S44S44S12 5 S4 5 S4 5 (S12)6S46S46S12

55Selecting a Preset Fleet Map1. Set the scanner for conventional scanning, pressPROG, then press TRUNK.2. Select the bank where you want to store the

569. Press SRC. The scanner exits the trunking pro-gramming mode, tunes the data channel, thenbegins to search using the map you programmed.Note: If y

57A GENERAL GUIDE TO SCANNINGReception of the frequencies covered by your scanneris mainly “line-of-sight.” That means you usually cannothear stations

58GUIDE TO THE ACTION BANDSTypical Band UsagePrimary UsageAs a general rule, most of the radio activity is concen-trated on the following frequencies:

59UHF BandNote: Remote control stations and mobile units operateat 5 MHz higher than their associated base stations andrelay repeater units.BAND ALLOC

6quires that scanners be manufactured in such a way asto not be easily modifiable to pick up those transmis-sions. Do not open your scanner's cas

60ROAD . . . . . . . . . . . . . . . . . . . Road & Highway MaintenanceRTV. . . . . . . . . . . . . . . . .Radio/TV Remote Broadcast PickupTAXI

61152.0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED152.030–152.240 . . . . . . . . . . . . . . . . . . . . . . .

62462.9375–463.1875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED463.200–467.925 . . . . . . . . . . . . . . . . . . . . . . . . . . .

63TROUBLESHOOTINGIf you have problems, here are some suggestions thatmight help. If they do not, take your scanner to yourlocal RadioShack store for a

64PROBLEMPOSSIBLE CAUSEREMEDYAn antenna is not connected or connected incor-rectly.Make sure an antenna is con-nected to the scanner.Error appears.Pro

65Scanner will not stop while scan-ning a scan list.No IDs have been stored.Store one or more IDs (see “Scan Lists” on Page 48.The IDs you have stored

66RESETTING THE SCANNERIf the scanner’s display locks up or does not work prop-erly, you might need to reset the scanner. Caution: This procedure clea

67CARE AND MAINTENANCEYour RadioShack PRO-91 150-Channel HandheldTrunking Scanner is an example of superior design andcraftsmanship. The following sug

68SPECIFICATIONSFrequency Coverage: ... 29–54 MHz (in 5 kHz steps)108–136.975 MHz (in 12.5 kHz steps)137–174 MHz (in 5 kHz steps)406–512 MHz (in 12

69Power Requirement: 4 AA Alkaline Batteries (6.0 VDC), or 4 AA Rechargeable Ni-Cd Batteries (4.8 VDC), or A

7Special Features ... 34Delay ... 34Tur

70NOTES20-521.fm Page 70 Wednesday, August 4, 1999 3:32 PM

7120-521.fm Page 71 Wednesday, August 4, 1999 3:32 PM

RadioShackA Division of Tandy CorporationFort Worth, Texas 76102UBZZ01274ZZ3A8 Printed in the PhilippinesLimited One-Year WarrantyThis product is warr

8Frequency Conversion 63Troubleshooting 64Resetting the Scanner ... 67Care and Maintenance ...

9PREPARATIONPOWER SOURCESYou can power your scanner from any of three sources: • Internal batteries (not supplied) • Standard AC power (using an optio