Radio Shack HANDHELD TRUNKING 20-521 Owner'S Manual Download Page 55

Page: 55 / 72

Selecting a Preset Fleet Map

1. Set the scanner for conventional scanning, press

PROG

, then press

TRUNK

2. Select the bank where you want to store the preset

fleet map by pressing a number key.

3. Press .

4. Repeatedly press s or t to select

. Then, when

flashes, press

E1P13

E1P14

Block

Size
Code

Block

Size
Code

S11

S10

S12

E1P15

E1P16

Block

Size
Code

Block

Size
Code

S10

S11

S12

DATA

Summary of Contents for HANDHELD TRUNKING 20-521

Page 1: ...Owner s Manual Cat No 20 521 PRO 91 150 Channel Handheld Trunking Scanner Please read before using this equipment ...

Page 2: ...munications using a regular scanner The PRO 91 lets you select and monitor the data channel frequency sent with a 2 way radio transmission so you can hear the call and response for that user and more easily follow the conversation The scanner also lets you scan conventional transmis sions and is preprogrammed with service banks for convenience By pressing a single button you can quickly search tho...

Page 3: ...ive Service Banks frequencies are preset in sepa rate police fire emergency aircraft ham marine and weather banks to make it easy to locate specific types of calls Hypersearch lets you set the scanner to search at up to 300 steps per second The normal search speed is 100 steps per second Hyperscan the scanner automatically scans up to 50 channels per second in frequency bands with 5 kHz steps to h...

Page 4: ... Tones the scanner sounds a tone when you perform an operation correctly and an error tone if you make an error Battery Save saves battery power when the scan ner does not detect any transmissions for more than 5 seconds when a channel is manually selected Battery Low Alert warns you when battery power gets low Your scanner can receive these bands Frequency Range MHz Step kHz Transmission 29 29 7 ...

Page 5: ... by many differ ent groups including police and fire departments ambu lance services government agencies private companies amateur radio services military operations pager services and wireline telephone and telegraph service providers It is legal to listen to almost every transmission your scanner can receive However there are some transmissions you should never intentionally listen to These incl...

Page 6: ...16 Connecting an Optional Antenna 16 Connecting an Earphone Headphones 17 Listening Safely 17 Traffic Safety 17 Connecting an Extension Speaker 18 Attaching the Belt Clip 18 About Your Scanner 19 A Look at the Keypad 20 A Look at the Display 21 Understanding Banks 23 Service Banks 23 Channel Storage Banks 23 Monitor Memories 24 Operation 25 Turning On the Scanner Setting Squelch 25 Storing Known F...

Page 7: ...ctive ID 45 Temporarily Storing an ID into the Monitor ID Memory 45 Locking Out IDs 46 Unlocking a Single ID 46 Unlocking All IDs 46 Using Trunk Tracking Scan Delay 47 Monitoring IDs 47 Channel Activity Bars 48 Scan Lists 49 Manually Storing IDs into Scan Lists 49 Moving IDs to Scan Lists 50 Deleting a Stored ID 50 Scanning the Scan Lists 51 Scanning Type I and Hybrid Trunked Systems 51 Selecting ...

Page 8: ...8 Frequency Conversion 63 Troubleshooting 64 Resetting the Scanner 67 Care and Maintenance 68 Specifications 69 ...

Page 9: ...est operation and best performance we recommend alkaline batteries such as Cat No 23 552 You can also use four rechargeable nickel cadmium batteries Cat No 23 125 Before you use nickel cad mium batteries you must charge them see Charging Nickel Cadmium Batteries on Page 11 Follow these steps to install batteries 1 Turn VOLUME OFF counterclockwise until it clicks to make sure the power is turned of...

Page 10: ...ries can get hot or explode if you try to recharge them 4 Install two batteries in the compartment and two in the cover as indicated by the polarity symbols and marked inside those locations Cautions Use only fresh batteries of the required size and recommended type Always remove old or weak batteries Batteries can leak chemicals that destroy electronic cir cuits Do not mix old and new batteries d...

Page 11: ...r to the scanner if non rechargeable batteries such as alkaline batter ies are installed in the scanner and ALKALINE JACK NI CD is set to NI CD or you are unsure of the switch s position Non rechargeable batteries will get hot and can even explode if you try to recharge them Before you use nickel cadmium batteries for the first time charge them at least 24 hours to bring them to a full charge Disc...

Page 12: ...adapter s polarized plug with an extension cord receptacle or other outlet un less the blades can be fully inserted to prevent blade exposure Cautions The recommended AC adapter supplies 9 volts and delivers at least 300 milliamps It has a barrel plug with a center negative tip that correctly fits the scanner s POWER jack Using an adapter that does not meet these specifications could damage the sc...

Page 13: ...DC adapter such as Cat No 270 1560 Cautions The recommended DC adapter supplies 9 volts and delivers at least 300 milliamps It has a barrel plug with a center negative tip that correctly fits the scanner s POWER jack Using an adapter that does not meet these specifications could damage the scanner or the adapter To protect your vehicle s electrical system always plug the adapter into the scanner b...

Page 14: ...rrel plug into your scanner s POWER jack 5 Plug the other end of the adapter into your vehi cle s cigarette lighter socket If you have installed rechargeable batteries and set ALKALINE JACK NI CD to NI CD the adapter powers the scanner and recharges the batteries at the same time Note If the scanner does not operate properly when you use a DC adapter unplug the adapter from the cig arette lighter ...

Page 15: ...nto place Connecting an Optional Antenna The scanner s BNC connector makes it easy to connect a variety of optional antennas such as an external mo bile antenna or outdoor base station antenna Your lo cal RadioShack store sells a variety of antennas Note Always use 50 ohm coaxial cable such as RG 58 or RG 8 to connect an outdoor antenna If the dis tance from the scanner to the antenna is over 50 f...

Page 16: ...tening After you begin listening adjust the volume to a comfortable level Once you set the volume do not increase it Over time your ears adapt to the volume level so a vol ume level that does not cause discomfort might still damage your hearing Traffic Safety Do not use an earphone or headphones with your scanner when operating a motor vehicle in or near traf fic Doing so can create a traffic haza...

Page 17: ...mfortable listening Plug the speaker cable s 1 8 inch mini plug into your scanner s jack ATTACHING THE BELT CLIP You can attach the supplied belt clip to make your scanner easier to use when you are on the go Use a Phillips screwdriver and the supplied screws to attach the belt clip to the scanner Then slide the clip over your belt or waistband ...

Page 18: ...t groups of frequencies categorized by type of service For example many am ateur radio frequencies are located in the HAM2 service bank When you find a frequency you can store it into a pro grammable memory location called a channel Chan nels are grouped into channel storage banks This scanner has 5 channel storage banks of 30 channels each You can then scan the channel storage banks to see if the...

Page 19: ... switches between conventional and trunk tracking LIMIT SRC search starts a limit search searches a specified frequency range to find frequencies searches for another active ID while trunk tracking turns on or off the data signal skip feature moves through menu settings while trunk tracking PRIORITY H S Hypersearch sets and turns on and off the priority feature turns on and off Hypersearch L OUT S...

Page 20: ...ervice bank or ID number The range of numbers 31 60 for example are used to en ter the channels that make up a memory bank MON CLEAR stores frequencies into monitor mem ories during a search recalls frequencies from monitor memories when programming a channel stores searched IDs into monitor memories or selects options while trunk tracking enters a decimal point or clears an incorrect entry SVC se...

Page 21: ...ars when the data skip function is active SCAN appears when you scan channels LIST appears with numbers 1 5 during trunk tracking Numbers with a bar under them show which ID scan list banks are turned on for scanning SVC appears during a service search SEARCH appears during a limit search and ID search and blinks when you monitor IDs see Monitor ing IDs on Page 46 PRI appears when the priority fea...

Page 22: ...anks The scanner is preprogrammed with all the frequencies allocated to the weather ham marine aircraft and po lice fire emergency services This is handy for quickly finding active frequencies instead of doing a limit search see Service Bank Search on Page 28 Channel Storage Banks To make it easier to identify and select the channels you want to listen to channels are divided into 5 banks of 30 ch...

Page 23: ...ore them into a channel This is handy for quickly storing an active frequency when you search through an entire band see Searching For and Temporarily Storing Active Frequencies on Page 26 While you are searching frequencies the 5 numbers at the top of the display indicate the 5 monitor memories MON appears and the number beside it that flashes in dicates the currently active monitor memory ...

Page 24: ...enna is connected before you turn it on 1 Turn SQUELCH fully counterclockwise 2 Turn VOLUME OFF clockwise until it clicks and you hear a hissing sound 3 Press MAN manual to stop the scanner from scanning turn SQUELCH clockwise then leave it set to a point just after the hissing sound stops ...

Page 25: ...copy Follow these steps to store frequencies into channels 1 Press MAN enter the channel number where you want to store a frequency then press PROG The channel number appears 2 Use the number keys and to enter the frequency including the decimal point you want to store 3 Press E to store the frequency into the channel Notes If you entered an invalid frequency in Step 2 Error appears and the scanne...

Page 26: ...FREQUENCIES If you do not have a reference to frequencies in your area use a limit direct or service search to find a transmission Also see Guide to the Action Bands on Page 58 Notes While doing a limit direct or service bank search you can press DELAY if you want the scanner to pause 2 seconds after a transmission ends before it proceeds to the next frequency see Delay on Page 33 if you want the ...

Page 27: ...When the scanner stops on a transmission quickly press either HOLD to stop search ing so you can listen to the transmission HOLD appears MON CLEAR to store the displayed fre quency into the cur rent monitor memory To release hold and continue searching press HOLD or hold down t or s for at least 1 second Or if you did not press HOLD simply press t or s to continue searching Direct Search Direct se...

Page 28: ...mory To release hold and continue searching press HOLD or hold down t or s for at least 1 second Or if you did not press HOLD simply press t or s to continue searching Note To step through the frequencies while HOLD is displayed press t or s Service Bank Search You can search for weather ham marine aircraft or police fire emergency transmissions even if you do not know the specific frequencies bei...

Page 29: ...pecified frequencies during a limit or direct search and up to 20 specified frequencies during a service bank search This lets you avoid un wanted frequencies or ones you have already stored in a channel To skip a frequency press S S when the scanner stops on the frequency dur ing a limit direct or service search The scanner stores the frequency in memory and automatically re sumes the search To c...

Page 30: ...you select a skipped frequency LISTENING TO THE MONITOR MEMORIES You can listen to the fre quency you stored in any one of the five monitor memories by pressing MAN MON CLEAR then the number of the moni tor memory you want to listen to 1 5 Note To listen to the monitor memories the priority channel feature must be turned off see Priority on Page 34 MOVING A FREQUENCY FROM A MONITOR MEMORY TO A CHA...

Page 31: ...oes not scan If the scanner picks up unwanted partial or very weak transmissions turn SQUELCH clockwise to decrease the scanner s sensitivity to these signals If you want to listen to a weak or distant station turn SQUELCH counterclockwise If SQUELCH is adjusted so you always hear a hiss ing sound the scanner does not scan properly To scan in the trunk tracking mode see Scanning a Trunked Bank on ...

Page 32: ... Or if your scanner is scanning and stops at the desired channel press MAN one time Pressing MAN addition al times causes your scanner to step through the chan nels To resume automatic scanning press SCAN ...

Page 33: ...ain DLY appears If the desired channel is not selected manually select the channel then press DELAY DLY ap pears If the scanner is searching press DELAY while the scanner is searching DLY appears and the scan ner automatically adds a 2 second delay to every frequency it stops on in that band To turn off the 2 second delay press DELAY while the scanner is monitoring a channel scanning or search ing...

Page 34: ...ckout from a channel manually select the channel then press S S L O disappears To unlock all channels in the banks that are turned on press MAN to stop scanning then hold down L OUT un til the scanner beeps twice PRIORITY The priority feature lets you scan through channels and still not miss important or interesting calls on specific channels You can program one stored channel in each bank as a pr...

Page 35: ...ITY to see the numbers of the pri ority channels To turn on the priority feature press PRIORITY during scanning PRI appears Every 2 seconds the scanner checks the priority channel in each bank that is turned on To turn off the priority feature press PRIORITY PRI disappears Notes The priority feature must be turned off to listen to the monitor memories or to use the data skip fea ture You can lock ...

Page 36: ...own KEYLOCK until K L disappears USING THE DISPLAY BACKLIGHT You can turn on the display light for easy viewing at night Press to turn on the display light for 15 sec onds To turn off the light before 15 seconds elapse press the button again CHANGING SEARCH SPEEDS The PRO 91 has two search speeds To switch between the normal and Hypersearch speeds during limit search or direct search press H S HYP...

Page 37: ...o signal is received appears when battery save is set to on While the battery save mode is set to on the scanner repeatedly turns off the internal power for 1 second then turns it back on for about 1 2 second to check for a transmission The scanner is preset with the battery save mode set to on but you can turn it off or back on Note The battery save mode does not work if the prior ity function is...

Page 38: ...ions during a search or scan Note Since data signals are not generally found in the air band this feature does not work in the air band To turn on the data skip feature be sure the priority feature is turned off see Priority on Page 34 then press appears To turn off the feature press again disappears DATA DATA DATA DATA ...

Page 39: ...pes of systems Type I and Type II Instead of selecting a specific frequency to transmit on a trunked system chooses one of several frequencies in a 2 way radio us er s talk group when that user presses PTT push to talk Thus trunking systems allocate a few frequencies among many different users but the way Type I and Type II systems do this is slightly different One impor tant distinction between t...

Page 40: ...fleet This is three times the amount of data a Type II system radio sends Since the data capacity of Type I systems is limited and the amount of data increases with each user Type I systems usually accommodate fewer users than Type II systems Nevertheless Type I systems are still in use There are also hybrid systems which are a combination of both Type I and Type II Your scanner defaults to monito...

Page 41: ... a trunked bank Note You can change this setting if necessary to pro vide better performance in your area STORING TRUNKED FREQUENCIES Before you set up your scanner to track a trunked sys tem consider the following Valid trunked system frequencies range from 851 0000 868 9875 in 12 5 kHz steps You can use any of your scanner s banks as either a trunk tracking bank or conventional scanning bank but...

Page 42: ...automatically selects the first channel in the bank when you select the bank 3 Use the number keys to enter one of the trunked system s frequencies then press E TRUNK BANK and the bank number the channel number and the frequency appear Note If you entered an invalid frequency the scanner beeps the channel number flashes and Error appears If this happens press to clear the frequency then repeat thi...

Page 43: ... the 5 available banks and you are scanning conventional non trunked frequencies follow these steps to begin trunk scanning 1 Press TRUNK The numbers for all banks flash along with BANK and TRUNK 2 Use the number keys to enter the number for the trunked bank you want to scan then press SRC The scanner searches for a data channel When the scanner finds it it begins trunk tracking If you entered all...

Page 44: ...D appears and the scanner stays on the current ID 2 If you want to listen to a different ID use the num ber keys to enter the ID you want to hold 3 Press HOLD again HOLD and the channel number flash and the scanner monitors that ID 4 When you want to stop the hold and resume searching for a data channel so you can continue trunk tracking press SRC Note You can also follow these steps to hold on an...

Page 45: ...The ID is locked out and the next active ID appears Unlocking a Single ID 1 Hold down L OUT until you hear two short beeps 2 Repeatedly press t or s to select the ID you want to unlock 3 Press L OUT The ID is unlocked and the next locked ID or if there are no other locked IDs appears 4 Press SRC to continue the scanner s previous func tion Unlocking All IDs Hold down L OUT until you hear two short...

Page 46: ...nses even with trunk tracking scan delay set you might need to change the default system type or the fleet map you are using See Scanning Type I and Hybrid Trunked Systems on Page 50 Monitoring IDs You can use your scanner s display to monitor the fre quencies in a trunked system for activity You cannot hear conversations in this mode but this is an excellent way to determine which talk groups are...

Page 47: ...m you are scanning has more than 20 channels The bar that remains on steadily even when there are no current transmissions represents the fre quency being used as the data channel The bar that flashes when an ID appears repre sents the frequency being used by the radio to transmit what you are currently hearing If a bar turns on but you do not hear a conversa tion the channel is probably being use...

Page 48: ...so on Once IDs are stored in lists you can scan them like you scan conventional channels You can program IDs into scan lists manual ly during a search or automatically Manually Storing IDs into Scan Lists 1 Select the trunking bank you want see Scanning a Trunked Bank on Page 43 2 After the scanner begins trunk tracking press MAN A number showing the current scan list appears steadily at the top o...

Page 49: ...cation you want to program Then repeat Step 4 to enter another ID Moving IDs to Scan Lists 1 Press MAN MAN appears 2 Select the ID scan list location where you want to store the IDs Then press PROG PGM appears 3 Press MON CLEAR A monitor ID appears 4 Press E The scanner stores the IDs into the selected ID scan lists Deleting a Stored ID 1 Press PROG PGM appears 2 Repeatedly press s or t to select ...

Page 50: ...s by default When you scan trunked frequencies each Type II user ID you see appears as an even number without a dash such as 2160 Your PRO 91 can also scan Type I trunked systems Each Type I ID appears as a three or four digit number followed by a hyphen followed by a one or two digit number such as 200 14 If you no tice a mix of odd and even user IDs such as 6477 2160 6481 6144 and 1167 then you ...

Page 51: ...re following complete conver sations If not try another preset map Programming a Fleet Map 1 Set the scanner for conventional scanning press PROG then press TRUNK 2 Select the bank where you want to program the fleet map by pressing a number key 3 Press 4 Repeatedly press s or t to select E1 then press A preprogrammed fleet map appears 5 Repeatedly press s or t until USr appears Then press E 6 Pre...

Page 52: ... number of fleets subfleets and IDs each block has For example you can see in the following table that a size code of S 4 has one fleet which is divided into 16 separate subfleets and it has a total of 512 individual IDs Each ID in the block is unique The left most digit is the block number in the ID The next two digits identify which fleet is active and the last digit s after the hy phen identifi...

Page 53: ... them But since you do not have to figure out all the blocks at once this is not as hard as it seems Select a size code for a block then press SRC Now listen to the communications If you decide you are receiving most of the replies to the conversations with IDs assigned to the block you just programmed then you have probably selected the right size code and can work on the next block of the map Th...

Page 54: ...4 7 S4 7 S12 E1P7 E1P8 E1P9 Block Size Code Block Size Code Block Size Code 0 S10 0 S1 0 S4 1 S10 1 S1 1 S4 2 S11 2 S2 2 S0 3 S4 3 S2 3 S0 4 S4 4 S3 4 S0 5 S4 5 S3 5 S0 6 S4 6 S4 6 S0 7 S4 7 S4 7 S0 E1P10 E1P11 E1P12 Block Size Code Block Size Code Block Size Code 0 S0 0 S4 0 S0 1 S0 1 S0 1 S0 2 S0 2 S0 2 S0 3 S0 3 S0 3 S0 4 S0 4 S0 4 S0 5 S0 5 S0 5 S0 6 S4 6 S0 6 S0 7 S4 7 S0 7 S4 ...

Page 55: ... by pressing a number key 3 Press 4 Repeatedly press s or t to select E1 Then when E1 flashes press E E1P13 E1P14 Block Size Code Block Size Code 0 S3 0 S4 1 S3 1 S3 2 S11 2 S10 3 S4 3 S4 4 S4 4 S4 5 S0 5 S4 6 S0 6 S12 7 S0 7 S12 E1P15 E1P16 Block Size Code Block Size Code 0 S4 0 S3 1 S4 1 S10 2 S4 2 S10 3 S11 3 S11 4 S11 4 S0 5 S0 5 S0 6 S12 6 S12 7 S12 7 S12 DATA ...

Page 56: ...you will be prompted for the next available block when pro gramming a fleet map For example if you assign Block 0 as an S 12 the scanner prompts you for b2 the next block available instead of b1 And if you as sign Block 0 as an S 14 you would not see another prompt because it uses all available blocks Programming a Hybrid System A hybrid system is simply a Type I system with some of its blocks des...

Page 57: ... receiver These oper ating frequencies might interfere with broadcasts on the same frequencies If you program one of these frequen cies you hear only noise on that frequency If the inter ference is not severe you might be able to turn SQUELCH clockwise to cut out the birdie This scanner s birdie frequencies in MHz are 162 400 162 475 162 525 162 425 162 500 162 550 162 450 161 650 161 775 163 275 ...

Page 58: ...o Broadcast Wide Band 470 00 512 00 MHz Public Service 806 00 823 93 MHz Conventional Systems 851 00 856 00 MHz Conventional Trunked Sys tems 856 00 861 00 MHz Trunked Systems 861 00 866 00 MHz Public Safety 866 00 868 93 MHz High Range 896 11 902 00 MHz 33 Centimeter Amateur 902 00 928 00 MHz Private Trunked 935 00 940 00 MHz General Trunked 940 00 941 00 MHz Fixed Services 941 00 944 00 MHz Stud...

Page 59: ...nventional Trunked Systems FIRE Fire Department HAM Amateur Ham Radio GOVT Federal Government GMR General Mobile Radio GTR General Trunked IND Industrial Services Manufacturing Construction Farming Forest Products MAR Military Amateur Radio MARI Maritime Limited Coast Coast Guard Marine Telephone Shipboard Radio Private Stations MARS Military Affiliate Radio System MED Emergency Medical Services M...

Page 60: ...0 BUS PUB IND TELM 36 000 36 230 GOVT MIL 36 250 Oil Spill Cleanup 36 270 36 990 GOVT MIL 37 020 37 980 PUB IND 38 000 39 000 GOVT MIL 39 020 39 980 PUB 40 000 42 000 GOVT MIL MARI 42 020 42 940 POL 42 960 43 180 IND 43 220 43 680 TELM IND PUB 43 700 44 600 TRAN 44 620 46 580 POL PUB 46 600 46 990 GOVT TELC 47 020 47 400 PUB 47 420 American Red Cross 47 440 49 580 IND PUB 49 610 49 990 MIL TELC 6 ...

Page 61: ...MIL USXX 166 250 GOVT RTV FIRE 166 275 169 400 GOVT BIFC 169 445 169 505 Wireless Mikes GOVT 169 55 169 9875 GOVT MIL USXX 170 000 170 150 BIFC GOVT RTV FIRE 170 175 170 225 GOVT 170 245 170 305 Wireless Mikes 170 350 170 400 GOVT MIL 170 425 170 450 BIFC 170 475 PUB 170 4875 173 175 GOVT PUB Wireless Mikes 173 225 173 5375 MOV NEWS UTIL MIL 173 5625 173 5875 MIL Medical Crash Crews 173 60 173 987...

Page 62: ... Safety Band Locally Assigned 866 0125 868 9875 PSB 33 Centimeter Amateur Band 902 928 MHz 902 0000 928 0000 HAM Private Trunked 935 0125 939 9875 PTR General Trunked 940 0125 940 9875 GTR FREQUENCY CONVERSION The tuning location of a station can be expressed in frequency kHz or MHz or in wavelength meters The following information can help you make the necessary conversions 1 MHz million 1 000 kH...

Page 63: ... Recharge the rechargeable bat teries or replace the non recharge able batteries The AC adapter or DC adapter is not connected Be sure the adapter s barrel plug is fully plugged into the POWER jack The scanner s display dims or the scanner sounds a tone every 15 30 sec onds Batteries are not correctly installed Make sure the batteries are installed properly The batteries are weak Recharge the rech...

Page 64: ...might not use a system that can be tracked by your scanner Scan another transmission The data fre quency is miss ing Find the data fre quency see Storing Trunked Frequencies on Page 41 The system you are trying to track is a Type I sys tem and the scanner is set to scan Type II sys tems Set the scanner to receive Type I trunked frequen cies See Scan ning Type I and Hybrid Trunked Systems on Page 5...

Page 65: ...annel see Storing Trunked Frequencies on Page 41 Missing replies to conversations The system you are trying to track is a Type I sys tem and the scanner is set to scan Type II sys tems Set the scanner to receive Type I trunked frequen cies See Scan ning Type I and Hybrid Trunked Systems on Page 50 The selected fleet map is incor rect Try another preset fleet map or pro gram your own fleet map see ...

Page 66: ...scanner 2 While you hold down the 2 and 9 keys turn on the scanner CLEAR flashes for about 8 seconds as the scanner clears its memory Note Do not turn off the scanner until CLEAR stops flashing Otherwise the scanner might not clear its memory properly Channel activity bars are flashing but no sound is heard The transmis sion might be a private or tele phone intercon nect call The scanner does not ...

Page 67: ...age circuit boards and cases and can cause the scanner to work improperly Use and store the scanner only in normal temperature environments Temperature extremes can shorten the life of electron ic devices damage batteries and distort or melt plastic parts Keep the scanner away from dust and dirt which can cause premature wear of parts Wipe the scanner with a damp cloth oc casionally to keep it loo...

Page 68: ...MHz 0 4 µV 806 956 MHz 0 6 µV AM 20 dB S N at 60 modulation 108 136 9875 MHz 1 5 µV Spurious Rejection at 40 84 MHz 50 dB Selectivity 10 kHz 6 dB 15 kHz 50 dB IF Rejection at 162 4 MHz 80 dB Channels 150 Operating Temperature 4 to 140 F 20 to 60 C Scan Speed 50 Channels Second Search Speed Normal 100 Steps Second Hypersearch 300 Steps Second Service 50 Frequencies Second Priority Sampling 2 Second...

Page 69: ...o 273 1665 or DC Adapter Cat No 270 1560 Current Drain Squelched 70 mA Full Output 180 mA Dimensions HWD 61 4 21 2 19 16 Inches 158 63 40 mm Weight without antenna batteries belt clip 8 1 oz 229 g Specifications are typical individual units might vary Specifications are subject to change and improvement without notice ...

Page 70: ...70 NOTES ...

Page 71: ...71 ...

Page 72: ...of a product defect during the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option unless other wise provided by law a correct the defect by product repair without charge for parts and labor b replace the product with one of the same or similar design or c refund the purchase price All replaced parts and ...

Search results

Summary of Contents for HANDHELD TRUNKING 20-521

Reviews:

Related manuals for HANDHELD TRUNKING 20-521

Brands by name

Popular brands

Radio Shack HANDHELD TRUNKING 20-521, Owner'S Manual

Search results

Summary of Contents for HANDHELD TRUNKING 20-521

Reviews:

Related manuals for HANDHELD TRUNKING 20-521

Brands by name

Popular brands