Radio Shack PRO-2052, Owner'S Manual

Page 1: ...Owner s Manual Cat No 20 432 PRO 2052 1000 Channel Dual Trunking TrunkTracker Home Scanner Please read before using this equipment ...

Page 2: ...ission and instantly switches to an active fre quency so you can hear the call and response for that 2 way radio user and easily follow the conversation The scanner also lets you scan con ventional transmissions and is pre programmed with service search banks for convenience By pressing a single button you can quickly search those frequencies most commonly used by public service and other agencies...

Page 3: ...uencies when scan ning or searching and skip over IDs when tracking trunked systems Priority Channels lets you pro gram one channel in each bank 10 in all As the scanner scans a bank it checks the bank s priority channel ev ery 2 seconds so you don t miss trans missions on that channel Five Service Search Banks let you search preset frequencies in sep arate public service police fire emer gency ai...

Page 4: ...ally tunes to the trunking data channel when it receives a dis connect transmission You can turn this feature off to continuously monitor a channel with a weak transmission during disconnected conversations Your PRO 2052 scanner can receive these bands Note See Specifications on Page 68 for more information about the scan ner s frequency steps Frequency Range MHz Types of Transmissions 29 29 7 10 ...

Page 5: ...t is legal to listen to almost every transmission your scanner can receive However there are some transmissions you should never intentionally listen to These include telephone conversations cellular cordless or other private means of telephone signal transmission pager transmissions any scrambled or encrypted trans missions According to the Electronic Communi cations Privacy Act ECPA you are subj...

Page 6: ...Channel 21 Deleting a Frequency from a Channel 21 Priority 21 Special Features 23 Delay 23 Turning Channel Storage Banks On and Off 23 Locking Out Channels and Frequencies 23 Turning the Key Tone On and Off 24 Changing Search Speeds 25 Skipping Data Signals 25 Using NWR SAME and Weather Alert 25 Testing Weather Alert Reception 28 Trunk Scanning 30 Types of Trunking Systems 30 Setting the Scanner t...

Page 7: ...n On and Off 47 PC to Scanner Commands 47 PC to Scanner Functions List 48 Scanner to PC Responses 52 Scanner Mode Codes 53 A General Guide to Scanning 55 Guide to Frequencies 55 Guide to the Action Bands 56 Band Allocation 57 Frequency Conversion 63 Troubleshooting 64 Resetting the Scanner 66 Care and Maintenance 67 Specifications 68 ...

Page 8: ... To install the antenna thread it clockwise into the hole on the scanner s top The scanner s sensitivity depends on the antenna s length and various envi ronmental conditions For the best re ception of the transmissions you want to hear adjust the antenna s length Connecting an Outdoor Antenna Instead of the supplied antenna you can connect an outdoor base station or mobile antenna not supplied to...

Page 9: ...oose an antenna follow the mounting instructions supplied with the antenna Then route the an tenna s cable to the scanner and con nect the cable to the ANT jack on the back of the scanner Cautions Do not run the cable over sharp edges or moving parts that might damage it Do not run the cable next to power cables or other antenna cables Warning Use extreme caution when you install or remove an out ...

Page 10: ...ied To connect an optional DC cigarette lighter power cable insert its barrel plug into the DC 12V jack on the back of the scanner then plug the power cable into your vehicle s cigarette lighter socket Cautions You must use a power source that supplies 12V DC and delivers at least 500 mA Its center tip must be set to positive and its plug must fit the scanner s DC 12V jack The sup plied adapter me...

Page 11: ...hones and head phones This automatically dis connects the internal speaker Listening Safely To protect your hearing follow these guidelines when you use an earphone or headphones Do not listen at extremely high volume levels Extended high volume listening can lead to per manent hearing loss Set VOLUME to the lowest setting before you begin listening After you begin listening adjust VOL UME to a co...

Page 12: ...t into a programmable memory location called a channel which is grouped with your other channels in a channel storage bank You can then scan the channel storage banks to see if there is activity on the frequencies stored there Each time the scanner finds an active frequency it stays on that channel until the transmission ends A LOOK AT THE FRONT PANEL Your scanner s keys might seem confusing at fi...

Page 13: ...number or bank numbers 1 to 10 Use double digits to enter bank numbers 11 to 20 CLEAR Clears an entry enters a decimal point in trunk scan ning mode sets the range between fleet and sub fleet for Motorola Type 1 IDs and sets the range between agency and fleet for Ericsson EDACS IDs E enter Enters frequencies into channels enters IDs into scan lists LIMIT Sets the frequency range sets the search di...

Page 14: ...perating status This quick look at the display will help you understand how your scanner operates LIST Appears with a number 1 5 to indicate the list num ber BANK Appears with numbers 1 20 to indicate the scan bank PUB Indicates along with the activity indicator that the scanner is searching the public safety service bank POLICE Indicates along with the activity indicator that the scanner is searc...

Page 15: ...ystem type is Motor ola E Appears when the trunking system type is EDACS ALERT Appears when the weather alert is on flashes when the scanner receives an ALERT signal or SAME alert Appears when a priority channel is selected or the priority ID is set SCAN Appears when the scanner scans channels MANUAL Appears when you set the scanner to its manual mode PRI Appears when the priority feature is turne...

Page 16: ...l fre quency or ID that is locked out SEARCH Lights steadily during a limit search service search and ID search and blinks while HyperSearch is active and when you monitor IDs The arrow indicates the search direction Error Appears if you make an entry error ...

Page 17: ...frequencies instead of searching through an entire band see Searching Service Banks on Page 19 UNDERSTANDING TRUNKING In the past groups that broadcast fre quently such as police departments were restricted to transmitting on just a few frequencies This resulted in heavy traffic and often required 2 way radio users to wait for a specific fre quency to clear before transmitting Trunked systems allo...

Page 18: ...ive frequen cies are the RadioShack Police Call Guide including Fire and Emergency Services Official Aeronautical Fre quency Directory and Maritime Fre quency Directory We update these directories every year so be sure to get a current copy Note To store trunking system fre quencies see Programming Trunked Frequencies on Page 32 Follow these steps to store frequen cies into channels 1 Press MANUAL...

Page 19: ...our area You can also store any of the frequencies you find into channels Your scanner has the following pre programmed service banks PUB contains 140 public ser vice frequencies POLICE contains 2 392 police frequencies FIRE EMG contains 197 fire and emergency service frequen cies AIR contains 2 319 aircraft and air service frequencies WX contains 7 weather fre quencies To select a service bank pr...

Page 20: ...rch range Then you can store any inter esting frequencies you find into chan nels 1 Press MANUAL enter the chan nel number where you want to store a frequency then press MANUAL again The channel num ber appears 2 Use the number keys and to enter the frequency that is the lower limit of the range you want to search 3 Press LIMIT 4 Use the number keys and to enter the frequency that is the upper lim...

Page 21: ... is use ful if you hear an emergency broad cast on a channel and do not want to miss any details even though there might be periods of silence or if you want to monitor a specific channel Follow these steps to manually select a channel 1 Press MANUAL 2 Enter the channel number 3 Press MANUAL again Or if your scanner is scanning and stops at the desired channel press MANUAL one time Pressing MANUAL...

Page 22: ... beeps twice appears to the right of the channel number 4 Repeat Steps 2 and 3 for the channel in each bank you want to program as a priority channel To turn on the priority feature press PRIORITY during scanning PRI ap pears As you scan the bank the scanner checks the bank s priority channel every 2 seconds in each bank that is turned on starting from the low est to the highest numbered priority ...

Page 23: ...d or limit range To turn off the 2 second delay press DELAY while the scanner is monitoring the channel or searching service banks or limit ranges DELAY disap pears TURNING CHANNEL STORAGE BANKS ON AND OFF You can turn each channel storage bank on and off When you turn off a bank the scanner does not scan any of the 50 channels in that bank For banks 1 10 while scanning press the number key that c...

Page 24: ...o lock out a frequency manually se lect the frequency and press L O until L O appears Notes The scanner does not display locked out frequencies during a search L O appears when you select a locked out frequency You can lock out up to 50 frequen cies during a limit search and 20 during a service bank search If you try to lock out more frequen cies the first locked out frequency is automatically unl...

Page 25: ...radios simply re ceive the NOAA National Oceanic and Atmospheric Administration wea ther broadcast usually within a 50 mile radius then sound an alarm if any emergency code was transmitted along with the broadcast This means that people who live outside an affect ed area are often alerted even when their area is not affected causing many of them to ignore potentially real weather warnings that can...

Page 26: ...r off Understanding FIPS Codes For the purpose of broadcasting weather information the NWS has di vided the United States into regions by state and county or parish where applicable then assigned a 6 digit FIPS code to identify each county or parish For example the code for Tar rant County Texas is 048439 The first digit in a FIPS code identifies the county subdivi sion the next two digits identif...

Page 27: ...at way you can program those codes into the scanner and re ceive broadcasts covering those loca tions too Turning on the SAME and Weather Alert 1 Repeatedly press SVC until appears above WX 2 Press ALERT ALERT appears and the scanner is set to receive a SAME coded signal The scan ner s audio is muted until it receives the signal When the scanner receives a SAME coded signal it sounds a series of b...

Page 28: ...unds an alert if it receives a weather alert with any FIPS code TESTING WEATHER ALERT RECEPTION For your scanner to effectively warn you about weather alert signals you must place it where it can receive an emergency alert broadcast and where you can hear its alert tone In the United States the NWS broad casts a test alert every week on Wednesday between 11 AM and 1 PM To find out the specific tes...

Page 29: ...rt function see Turning on the SAME and Weather Alert on Page 27 2 Hold down ALERT for about 3 sec onds The selected frequency number and TESt alternate on the display Then when the scan ner receives a test code TSt appears 3 Press ALERT to exit the test mode ...

Page 30: ...of selecting a specific frequency to transmit on a trunked system chooses one of several frequencies in a 2 way radio user s talk group when that user presses PTT push to talk Thus trunking systems allocate a few frequencies among many different us ers but the way Type I and Type II systems do this is slightly different One important distinction between these systems is the amount of data transmit...

Page 31: ...amount of data increases with each user Type I systems usually accom modate fewer users than Type II sys tems 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 mon itor Type II systems but you can change to Type I or a hybrid of Type I and Type II systems by selecting a pre programmed fleet map or ...

Page 32: ...Hz steps You can use any of your scanner s banks as either a trunk scanning bank or conventional scanning bank but you cannot mix the two The scanner only scans one trunked system at a time Al though you can store frequencies for more than one trunked system in one of your scanner s banks the scanner only scans the fre quencies associated with the first data channel it finds Before scanning a trun...

Page 33: ...ncies press All banks programmed with Motorola system frequencies flash To see all banks pro grammed with EDACS system fre quencies press again All banks programmed with EDACS system frequencies flash 4 Use the number keys to activate the trunked bank you want to scan appears under the selected bank s number 5 Press SEARCH As the scanner searches for the trunk s data channel the channel that con t...

Page 34: ...her trunked bank while you are listening to a trunked bank hold down DATA Turning Status Bit Ignore On or Off You can set how your scanner works with status bits also called S bits let ting you control how the scanner inter prets and displays talkgroup IDs The last four bits of a Motorola Type II talkgroup ID a binary 16 bit code are the status bits In some systems sta tus bits identify special si...

Page 35: ...al format The ID appears in decimal format and E flashes EDACS ID Range Search To make searching for EDACS IDs faster set a range for the Agency or Fleet listings Simply use the number keys to enter the Agency or the Agen cy and the Fleet listing then press SEARCH Note the following exam ples Example 1 Agency 01 Press 0 1 SEARCH 01 appears during search Example 2 Agency 01 Fleet 01 Press 0 1 0 1 S...

Page 36: ...ter meters door alarms traffic signals and en crypted signals are assigned IDs just like other users You can lock out up to 100 IDs To lock out an ID press L O when the ID appears The ID is locked out and the next active ID appears Note If you lock out an ID while searching it is also locked out of the scan list s See Scan Lists on Page 37 Unlocking a Single ID 1 Hold down L O until you hear two s...

Page 37: ...hat 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 represents the frequency being used by the radio you are currently hearing If a bar turns on but you do not hear a conversation the channel is probably being used for a tele phone interconnect call or a pri vate call or the indicator ...

Page 38: ...ress E Or to enter a Type I ID a Use the number keys to enter the block number and the fleet number then press b Enter the subfleet number then press E Note To clear a mistake while entering an ID press CLEAR then start over at Step 4 Or to enter an EDACS ID a Use the number keys to enter the agency number then press b Enter the fleet number then the subfleet number then press E 5 Repeatedly press...

Page 39: ...hown at the top of the display you want to delete 3 Press 0 then E SCANNING THE SCAN LISTS Press SCAN to begin scanning the lists you have programmed Id SCAN scrolls on the display Note If more than one of the scan IDs you have stored do not work Error flashes twice and the scanner beeps several times then the scan list num bers appear at the top of the display To remove a scan list from active sc...

Page 40: ...bfleet parameters It is easy to se lect a fleet map to scan what is not al ways easy is selecting or program ming a map that is being used in your particular area When a Type I system is designed the address information for all its user IDs is divided into 8 equal size blocks numbered 0 7 and each block is as signed a size code When you set up your scanner to track a Type I system you must choose ...

Page 41: ...nown If you do not already know the size codes used you will have to guess them But since you do not have to fig ure out all the blocks at once this is not as hard as it seems Select a size code for a block then press SEARCH 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 pro grammed then you have pro...

Page 42: ... 7 S4 7 S12 E1P7 E1P8 Block Size Code Block Size Code 0 S10 0 S1 1 S10 1 S1 2 S11 2 S2 3 S4 3 S2 4 S4 4 S3 E1P7 E1P8 Block Size Code Block Size Code 5 S4 5 S3 6 S4 6 S4 7 S4 7 S4 E1P9 E1P10 Block Size Code Block Size Code 0 S4 0 S0 1 S4 1 S0 2 S0 2 S0 3 S0 3 S0 4 S0 4 S0 5 S0 5 S0 6 S0 6 S4 7 S0 7 S4 E1P11 E1P12 Block Size Code Block Size Code 0 S4 0 S0 1 S0 1 S0 2 S0 2 S0 3 S0 3 S0 4 S0 4 S0 5 S0...

Page 43: ...ss E The scanner then searches for trans missions using the preset map you chose Note When the scanner searches for transmissions you see Type I fleet and subfleet IDs such as 100 12 100 9 000 12 or 400 8 How do you know if the preset map you selected is correct Listen to see if you are following complete conver sations If not try another preset map E1P13 E1P14 Block Size Code Block Size Code 0 S3...

Page 44: ...igned to Block 0 Since these size codes require multi ple blocks you will be prompted for the next available block when pro gramming a fleet map For example if you assign Block 0 as an S12 the scanner prompts you for b2 the next block available instead of b1 And if you assign Block 0 as an S14 you would not see another prompt be cause it uses all available blocks Programming a Hybrid System A hybr...

Page 45: ...e Detect Function On Off While trunk scanning a Motorola sys tem your scanner automatically tunes to the data channel when it detects a disconnect tone a code that tells the trunking system that the transmitter has finished sending on the voice channel You can manually turn off this function so the scanner does not tune to the data channel under those conditions Use this feature to listen to weak ...

Page 46: ...SETTING THE REMOTE COMMUNICATION FORMAT To set the remote communication for mat so the scanner and computer can communicate with each other use standard Windows communications software such as Modem Master or Hyper Terminal not supplied See your software s documentation for more information about operating it Software Settings Use the following settings for the com munications software Scanner Set...

Page 47: ...the Scanner to a Com puter on Page 46 2 Run your computer s communica tion software see Setting the Remote Communication Format on Page 46 3 Type a command listed in the fol lowing table then press Enter on your computer s keyboard For this operation Type this command Scan KEY00 Manual KEY01 Select channel 0 9 KEY02 where equals the numeric number decimal point Clear KEY03 E Enter KEY04 Priority s...

Page 48: ...the scanner Use this proce dure only when you are sure your scanner is not working properly Check if Data Skip is on DS Check if Lockout is on LO Check the lower limit frequency for a limit search LL Set the lower limit frequency for a limit search LL where equals the frequency Check the upper limit frequency for a limit search LU Set the upper limit frequency for a limit search LU where equals th...

Page 49: ...y Check if Squelch Monitor is on QU Turn Squelch Monitor on off QUN QUF Check if Priority Monitor is on RI Turn Priority Monitor on off RIN RIF Check scanner modulation setting RM Check which banks are active SB Select banks for scanning SB x where x equals a matching let ter equivalent to the bank you want to scan For example to scan bank 5 type E Or to scan banks 3 and 7 type CG Check if Squelch...

Page 50: ...L Enter a Type 1 Trunk ID into lockout memory ILR xyy zz where x a block number yy a fleet number zz a sub fleet number Enter a Type 2 Trunk ID into lockout memory ILR nnnnnn where nnnnnn equals an ID number Enter an EDACS Trunk ID into lockout mem ory ILR xx yyz where xx an agency number yy a fleet number z a sub fleet number Confirm EDACS ID mode AF Change ID to AFS or decimal mode AFN AFF Check...

Page 51: ...quals an ID list num ber and equals an ID location number Check EDACS ID range mode RG Set EDACS ID range mode RG where equals a partial EDACS ID For example a partial EDACS ID could be 01 01 02 Read scanner information SI Check for active trunking banks TB Check status of Tone Detection TD Turn Tone Detection on off TDN TDF Program Talk Group ID TG where a bank number an ID scan list an ID locati...

Page 52: ...computer and software You might see any of the following codes Code Meaning NG Invalid command ERR Command format error ORER Overrun error OK Command received CXXX Channel number FXXXXXXXX Frequency TN Trunking frequency TF Conventional fre quency xN Function On xF Function Off ...

Page 53: ... the following codes Code For this Mode 00 Scan 01 Manual 02 Limit Search 03 Limit Search Hold 04 Service Scan 05 Service Scan Hold 06 Program 07 EDACS Program 08 System Program 09 ID Search 10 ID Search Hold 11 ID Scan 12 ID Manual 13 ID Lockout Review 14 Search Control Channel 15 EDACS ID Search 16 EDACS ID Hold 17 EDACS ID Scan 18 EDACS ID Manual ...

Page 54: ...54 Code For this Mode 19 EDACS ID Lockout Review 20 EDACS Search Control Channel 21 VFO ...

Page 55: ...f the interference is not severe you might be able to turn SQUELCH clockwise to cut out the birdie This scanner s birdie frequencies in MHz are To find the birdies in your individual scanner begin by disconnecting the antenna and moving it away from the scanner Make sure that no other nearby radio or TV sets are turned on near the scanner Use the search function and search every fre quency range f...

Page 56: ...overnment 406 00 420 00 70 Centimeter Amateur 420 00 450 00 Low Range 450 00 470 00 FM TV Audio Broadcast Wide Band 470 00 512 00 Public Service 806 00 823 93 Conventional Systems 851 00 856 00 Conventional Trunked Systems 856 00 861 00 Trunked Systems 861 00 866 00 Public Safety 866 00 868 93 High Range 896 11 902 00 33 Centimeter Amateur 902 00 928 00 Private Trunked 935 00 940 00 General Trunke...

Page 57: ...quencies are subject to change and might vary from area to area For a more complete listing refer to the Police Call Radio Guide including Fire and Emergency Services avail able at your local RadioShack store Activities Frequencies MHz 2 Meter Amateur Band 144 000 148 000 Government Police and Fire 153 785 155 980 Emergency Services 158 730 159 460 Railroad 160 000 161 900 Activities Frequencies M...

Page 58: ...Affiliate Radio System MED Emergency Medical Services MIL U S Military MOV Motion Picture Video Industry NEW New Mobile Narrow NEWS Relay Press Newspaper Reporters OIL Oil Petroleum Industry POL Police Department PUB Public Services Public Safety Local Government Forestry Conservation PSB Public Safety PTR Private Trunked ROAD Road Highway Maintenance RTV Radio TV Remote Broadcast Pickup TAXI Taxi...

Page 59: ...Spill Cleanup 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 Meter Amateur Band 50 54 MHz 50 00 54 00 HAM Aircraft Band 108 136 ...

Page 60: ...157 770 158 100 TELB 158 130 158 460 BUS IND OIL TELM UTIL 158 490 158 700 TELB 158 730 159 465 POL PUB ROAD 159 480 OIL 159 495 161 565 TRAN 161 580 162 000 OIL MARI RTV 162 0125 162 35 GOVT MIL USXX 162 400 162 550 WTHR 162 5625 162 6375 GOVT MIL USXX 162 6625 MED 162 6875 163 225 GOVT MIL USXX 163 250 MED 163 275 166 225 GOVT MIL USXX 166 250 GOVT RTV FIRE 166 275 169 400 GOVT BIFC 169 445 169 ...

Page 61: ...ast Guard Air Sea Rescue ULTRA HIGH FREQUENCY UHF 300 MHz 3 GHz Military Aircraft Band 319 1 383 9 MHz 319 100 FAA Traffic control 321 000 336 600 Air Force 342 500 344 600 FAA Weather 346 400 364 200 Air Traffic Control 381 800 383 900 Coast Guard U S Government Band 406 420 MHz 406 125 419 975 GOVT USXX 70 Centimeter Amateur Band 420 450 MHz 420 000 450 000 HAM Low Band 450 470 MHz 450 050 450 9...

Page 62: ...1 750 Channel 20 Note Some cities use the 470 512 MHz band for land mobile service Conventional Systems Band Locally Assigned 851 0125 855 9875 CSB Conventional Trunked Systems Band Locally Assigned 856 0125 860 9875 CTSB Trunked Systems Band Locally Assigned 861 0125 865 9875 TSB Public Safety Band Locally Assigned 866 0125 868 9875 PSB 33 Centimeter Amateur Band 902 928 MHz 902 0000 928 0000 HAM...

Page 63: ...ion can help you make the necessary conversions 1 MHz million 1 000 kHz thousand To convert MHz to kHz multiply the number of megahertz by 1 000 9 62 MHz 1000 9620 kHz To convert from kHz to MHz divide the number of kilohertz by 1 000 2780 kHz 1000 2 780 MHz To convert MHz to meters divide 300 by the number of megahertz 300 7 1 MHz 42 25 meters ...

Page 64: ...rted into the DC 12V jack The scanner must be reset Reset the scanner see Resetting the Scanner on Page 66 Poor or no reception An antenna is not con nected or connected incor rectly Make sure an antenna is connected to the scanner Error appears Programming error Reprogram the frequency correctly including the deci mal point In the scan mode the scan ner locks on frequencies that have an unclear t...

Page 65: ...encies on Page 32 Missing replies to conversa tions The system you are trying to track is a Type I system and the scanner is set to scan Type II systems Set the scanner to receive Type I trunked frequencies See Scanning Type I and Hybrid Trunked Systems on Page 40 The selected fleet map is incorrect Try another preset fleet map or program your own fleet map See Scanning Type I and Hybrid Trunked S...

Page 66: ...physical or electrical shock Caution This procedure clears all the information you have programmed into the scanner Use this procedure only when you are sure your scanner is not working properly To reset the scanner turn it off Then while you hold down 2 and 9 turn on the scanner CLEAr appears for about 5 seconds while the scanner re sets Caution Do not turn off the scanner while it is resetting ...

Page 67: ...ectronic devices and distort or melt plastic parts Keep the scanner away from dust and dirt which can cause premature wear of parts Handle the scanner gently and carefully Dropping it can damage cir cuit boards and cases and can cause the scanner to work improperly Wipe the scanner with a damp cloth occasionally to keep it looking new Do not use harsh chemicals cleaning solvents or strong deter ge...

Page 68: ...9875 in 12 5 kHz steps UHF Standard 450 0000 469 9875 in 12 5 kHz steps UHF T 470 0000 512 0000 in 12 5 kHz steps Public Service 806 0000 823 9375 in 12 5 kHz steps Public Service Trunking Repeater 851 0000 868 9875 in 12 5 kHz steps Public Service 896 1125 956 0000 in 12 5 kHz steps 25 cm Amateur Radio 1240 0000 1300 0000 in 12 5 kHz steps Channels of Operation Any 1000 channels in any band combi...

Page 69: ...ds 10 85 MHz 3rd IF 450 kHz Squelch Sensitivity Threshold Less than 0 6 µV Tight VHF Lo Hi UHF S N N 25 dB Aircraft S N N 15 dB Antenna Impedance 50 ohms Audio Power 1 1 W Maximum Built In Speaker 2 1 4 Inches 57 mm 8 ohms Operating Temperature 10 C to 50 C Power Requirements AC Adapter 12 Volts DC DC Adapter 12 Volts DC Current Drain At Squelched 240 mA At Full Output 440 mA Dimensions HWD 2 3 4 ...

Page 70: ...70 NOTES ...

Page 71: ...71 ...

Page 72: ...he event 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 un less otherwise 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 p...