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Uniden BC796D APC0 25 Owner's Manual

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  Summary of Contents for Uniden BC796D APC0 25

  • Page 3: Table Of Contents

    The FCC Wants You To Know ...1 Scanning Legally ...2 Introduction ...3 Using this Manual ...5 Understanding Scanning ...6 Conventional Scanning ...6 Simplex Operation ...6 Repeater Operation ...6 Trunked Scanning ...7 Motorola Trunking ...7 EDACS Trunking ...8 LTR Trunking ...9 Understanding Banks and Channels ...9 Getting More Information ...10 Front and Rear View ...11...
  • Page 4 Selecting Talkgroup Lists to Scan ...24 Holding on a Single Talkgroup ...24 Locking Out Talkgroups ...24 EDACS Blockout ...25 Unlocking All Talkgroups ...25 EDACS Patch Tracking ...25 Searching ...26 Holding on an Active Frequency ...26 Setting Chain Search ...26 Setting Data Skip ...26 Skipping Frequencies ...26 Storing Found Frequencies ...27 Automatically Storing Frequencies ...27...
  • Page 5 Toggling the Status Bit ...48 Toggling End Code Detect ...48 Programming EDACS Systems ...49 Programming EDACS Channels ...49 Setting EDACS Emergency Alert ...49 Setting EDACS Decimal Mode ...50 Programming APCO 25 Systems ...51 Setting APCO 25 Sound Quality ...51 Programming LTR Systems ...52 Programming Talkgroups ...53 Storing Known Talkgroups ...53 Storing Found Talkgroups ...53...
  • Page 7: The Fcc Wants You To Know

    The FCC Wants You To Know This scanner has been tested and found to comply with the limits for a scanning receiver, pursuant to Part 15 of FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This scanner generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 8: Scanning Legally

    It is also illegal in many areas (and a bad idea everywhere) to interfere with the duties of public safety officials by traveling to the scene of an incident without authorization. Uniden ® and Bearcat ® are registered trademarks of Uniden America Corporation. TrunkTracker is a proprietary trademark of Uniden America Corporation.
  • Page 9: Introduction

    The BC796D APCO 25 Digital Trunking Scanner connects you to the exciting world of scanning. Capable of scanning conventional frequencies, analog trunking systems, and the most popular digital trunking systems, it is a great all-in-one solution to your scanning needs. Here is a brief list of some of the systems you can monitor with your BC796D: •...
  • Page 10 In addition, here are a few more of the many features your scanner has. To get the most from your scanner, be sure to review this entire manual. • APCO Project 25 Phase 1 Compatible – works on the latest 9600 bps systems, including systems that use C4FM and CQPSK modulation.* •...
  • Page 11: Using This Manual

    Using this Manual To get the most from this manual, review the contents to become familiar with the basic functions available. If you are new to scanning or trunktracking, be sure to read the “Understanding Scanning” section for a quick background on the technology behind the hobby.
  • Page 12: Understanding Scanning

    Understanding Scanning This section provides you with the background on how scanning works. You don’t really need to know all of this to use your scanner, but some background knowledge will help you to get the most from your BC796D. Conventional Scanning Conventional scanning is a relatively simple concept.
  • Page 13: Trunked Scanning

    This semi-random frequency assignment made monitoring such a system impossible prior to Uniden’s invention of the Trunktracking scanner.
  • Page 14: Edacs Trunking

    One big difference you will notice with digital versus analog transmissions, is that with analog systems, you might be able to hear weak signals interspersed with hissing. As you move further away from the system, the interference gradually increases until you are unable to make out the transmission.
  • Page 15: Ltr Trunking

    LTR Trunking LTR ® (Logic Trunked Radio) systems are trunking systems used primarily by business or private communications service providers, such as taxicabs, delivery trucks, and repair services. These systems encode all control information as digital subaudible data that accompanies each transmission, so there is no separate control channel. Users on an LTR system are assigned to specific talkgroups, which are identified by the radio as six digit numbers.
  • Page 16: Getting More Information

    Trunking frequency guides will give you a good head start on the other part of what you need to know – what frequencies have interesting content. You can also find a wealth of information on the Internet...check out for the latest frequency information in your area.
  • Page 17: Front And Rear View

    Front and Rear View VOLUME SQUELCH CHAN/FREQ PUSH VFO/SELECT 1. Volume/Squelch Control 2. VFO/Select Channel/Frequency Control 3. Scan Key (SCAN) 4. Service Key (SRVC) 5. Display 6. Resume Key ( 7. Hold/Up/Manual Key (▲/HOLD) 8. Numeric Keypad 9. Menu/Bank Key (MENU) 18.
  • Page 18: Display Icons

    Display Icons ICON Priority Channel Indicator Lock Out Mode Indicator Scan/Search Direction Indicator SRCH Chain Search Mode Indicator SRVC Service Search Mode Indicator SCAN Scan Mode Indicator ID SCAN ID Scan Mode Indicator ID SEARCH ID Search Mode Indicator Channel Type Conventional Type Trunk Type Motorola Tracking Type...
  • Page 19: Included With Your Scanner

    Included With Your Scanner If any of these items are missing or damaged, immediately contact your place of purchase or Uniden Customer Service at: (800) 297-1023, 8:00 a.m. to 5:00 p.m., Central Time, Monday through Friday. • BC796D Scanner • AC Adapter (AD 580D) •...
  • Page 20: Setting Up Your Scanner

    Setting Up Your Scanner Connecting an Antenna You must install an antenna before you can operate the scanner. You have been provided a standard telescopic antenna that works well with this scanner, but you may want to purchases another type to increase the range. To connect the telescopic antenna, simply connect it to the BNC type ANT.
  • Page 21: Typical Mounting Methods

    Typical Mounting Methods The BC796D can be conveniently mounted on a table, bulkhead, overhead, or any other desired location (refer to figure below for typical mounting methods). Caution: Make sure there are no hidden electrical wires or other items behind the desired location before proceeding.
  • Page 22: Applying Power For Vehicle Installation

    Applying Power for Vehicle Installation You can power your scanner using either the supplied DC power cord or your vehicle’s cigarette lighter socket using DC cigarette lighter power cord. Caution: You must use a power source that supplies 13.8 V DC and delivers at least 700 mA.
  • Page 23: Desktop Installation

    Desktop Installation You can place this scanner on a desk, shelf, or table to use it as a base station. 1. Flip up the feet for desk installation. 2. Extend the antenna to full vertical position. Adjust the angle for best reception. Applying Power Using Standard AC Power To power the scanner from an AC outlet, use the provided AC adapter with a 5.5 mm outer diameter/2.1mm inner diameter tip.
  • Page 24: Listening Safely

    Listening Safely To protect your hearing, follow these guidelines when you use an earphone or headphones. • Do not use the earphone to listen to the WX alert siren test or when in SAME Alert mode. The alert tone's volume is not adjustable and damage to your hearing could occur.
  • Page 25: Basic Operation

    This section is your main reference for using the scanner once you have programmed conventional and trunked systems. Note that there are some slight differences to some functions depending on whether you are trying to affect conventional operation or trunked operation.
  • Page 26: Using The Menu

    Using the Menu Many of your scanner’s functions are accessed through its menu system. For complete information about a menu option, see the section referencing its use. A complete list of the menu structure is included in the back of this manual. To select a menu item, first press MENU to go to the first-level menu.
  • Page 27: Locking/Unlocking Channels

    To unlock locked-out banks, simply press that bank’s number again. The scanner displays that bank’s number and includes it when scanning. Note: You cannot lockout all banks. One bank must be unlocked at all times. Locking/Unlocking Channels To lock out a channel so that the scanner does not stop on it while scanning, press L/O when the scanner is stopped on that channel or manually select the channel and press L/O.
  • Page 28: Dimmer Light Setting

    Dimmer Light Setting The Dimmer Light setting sets the brightness of the display backlight. 3:SYSTEM OPTION → 1:DIMMER 1:HIGH Set the backlight to the brightest setting 2:MEDIUM Set the backlight to be dimmer 3:OFF Set the backlight off Controlling How Much Information Appears The scanner normally displays trunk, frequency, receiving mode, and a signal meter when it is scanning.
  • Page 29: Disabling The Apco25 Card

    Disabling the APCO25 Card If you are not in an area where there is an APCO 25 digital system, you can save power by disabling the APCO 25 (P-25) card. 3:SYSTEM OPTION → 0:P-25 CARD 1:ENABLE The card is enabled 2:DISABLE The card is disabled Muting All Audio...
  • Page 30: Scanning Only Stored Talkgroups (Id Scan)

    • In the ID search mode, the scanner displays the alpha tags associated with the stored talkgroups or NEW for talkgroups you have not stored. Scanning Only Stored Talkgroups (ID Scan) To scan only those talkgroups you have stored into your scanner, press SCAN while scanning that system;...
  • Page 31: Edacs Blockout

    To unlock an ID you locked out during ID search or ID scan: 2:SCAN OPTION → 2:TRUNK → Select the Bank → 7:L/O ID REVIEW Then, use the scroll bar to select the ID you want to unlock and press L/O. Or, press ▲/HOLD then press L/O for 2 seconds to clear all the lockouts from the system.
  • Page 32: Searching

    Your BC796D includes powerful search features that let you discover new active frequencies in your area. You can save up to 10 custom search ranges in your scanner. This section details how to use custom search ranges and also details the various settings that affect search operation.
  • Page 33: Storing Found Frequencies

    To skip over a frequency, press L/O when the scanner is stopped on a frequency you want to skip. Notes: • You can program up to 200 skip frequencies. The 201st skip frequency entered causes the first skipped frequency to unlock. •...
  • Page 34: Setting Subaudible Tones For Searching

    Setting Subaudible Tones for Searching You can set the scanner to only stop on transmissions that either have no subaudible tone or include a specified CTCSS or DCS tone during searches. This setting affects all search ranges. For this feature to work, you need to turn on the Tone Mode (see “Setting Squelch Mode”).
  • Page 35: Setting A Search Range

    5:INFINITE When the scanner stops on a transmission, you must press RSM to resume searching. 6: -2 SECONDS The scanner only stops on transmissions for 2 seconds, then automatically resumes. To hold on the transmission, press ▲/HOLD during the 2-second pause. 7: -5 SECONDS The scanner only stops on transmissions for 5 seconds, then automatically resumes.
  • Page 36 Plan 1, so this setting should work in most cases. Note: This feature only works for 800 MHz and 900 MHz Motorola trunking systems. If the scanner detects a trunking control channel, it will begin to track that system. The scanner displays the talk group numbers as they become active.
  • Page 37: Service Search

    The Service Search feature lets you scroll through the following twelve preprogrammed services. The frequencies selected for these services are the most commonly used around the U.S. • 1:WEATHER • 2:PUBLIC SAFETY • 3:NEWS • 4:TV BROADCAST • 5:HAM RADIO •...
  • Page 38: Using Weather Search And Weather Alert (Same)

    Using Weather Search and Weather Alert (SAME) Your scanner allows you to either search for a local NOAA weather broadcast, or be set to alert when a SAME weather alert is broadcast on a NOAA channel. Searching for a Weather Broadcast To search for a weather broadcast in your area: 1:SERVICE OPTION →...
  • Page 39: Testing The Weather Alert

    To limit alerts to a specific area, you must also program in the FIPS code(s) for the area(s) you want to receive alerts for. The scanner can be set to either alert for all areas, or only the areas you have programmed. You can get FIPS codes for your area by calling the National Weather Service at 1-888-NWR-SAME or visit their web site at
  • Page 40: Programming Bank Information

    Programming Bank Information In addition to channel and trunking system information you program into each bank (covered in the following sections), this section covers general bank information. Bank Configuration Each of your scanner’s banks holds 100 channels that can be a mix of conventional (non- trunked) channels and one trunking system.
  • Page 41: General Programming

    General Programming This section includes procedures that apply regardless of whether you are programming conventional or trunked channels. Deleting Frequencies from Channels To delete a stored frequency, manually select the channel, then press 0 and E. The contents of the channel are erased. Transferring Channel Information To transfer settings from one channel to another: 1.
  • Page 42 • Entered frequencies are rounded off according to the step size for the channel. • When you store a new frequency in a channel, the text tag previously assigned to that channel is deleted.
  • Page 43: Programming Conventional Channels

    Programming Conventional Channels Each bank can hold a mix of conventional channels plus one trunking system. This section describes how to store known frequencies into conventional channels. The first few sections are intended to be performed in the order indicated if you are entering information the first time.
  • Page 44: Setting The Delay

    3:DONE Exit the channel setting and menu mode. Setting the Delay 2:SCAN OPTION → 1:CONVENTIONAL → Channel No. → 2:DELAY The delay option lets you set a delay after a transmission for each channel. This slows down scanning, but helps to prevent missing replies. 1:NONE The delay is turned off.
  • Page 45: Setting Beep Alert

    Digital Coded Squelch is similar to CTCSS, but instead of differentiating codes using frequencies, DCS always uses the same frequency but encodes it with a binary value. When you select this option, the scanner only opens squelch when a matching DCS value is present on the frequency. 3:OFF The scanner opens squelch regardless of the presence of tones.
  • Page 46: Setting The Modulation Mode

    6:25KHz Use 25 kHz steps 7:50KHz Use 50 kHz steps 8:100KHz Use 100 kHz steps 9:AUTO Automatically set the step size based on the band Setting the Modulation Mode 2:SCAN OPTION → 1:CONVENTIONAL → Channel No. → 7:MODE Radio transmissions are modulated in several different ways. The BC796D is able to demodulate the most common transmission types.
  • Page 47: Programming Trunked Systems

    • The frequencies for many of the trunked public safety systems are listed in the TrunkTracker National Public Safety Trunked System Frequency Guide included with your BC796D scanner. Frequencies sometimes change, check with for the latest information.
  • Page 48: Setting Trunking Delay

    Setting Trunking Delay Setting a delay for trunking systems helps to ensure that you do not miss replies while scanning. 2:SCAN OPTION → 2:TRUNK → Select the bank → 4:DELAY 1:NONE The delay is turned off. 2:1 SECOND The delay time is 1 second. 3:2 SECONDS The delay time is 2 seconds.
  • Page 49: Setting Priority Talkgroups (Motorola And Edacs Only)

    The scanner will stop on I-Calls or normal talkgroups. 2:OFF The scanner ignores I-Calls. 3:ONLY The scanner only stops on I-Calls. Turning I-Call On for ID Scan To receive I-Calls for ID Scan, simply store the radio unit number as ( number in place of the talkgroup.
  • Page 50 TRUNK SCAN: The scanner moves to a trunked system and looks for IDs in your Scan List(s) for up to 1 second. If it finds no activity on your programmed talkgroups, it moves on to conventional channels in the same bank or to the next active bank. If the scanner finds that a talkgroup in one of your active Scan Lists becomes active, you will begin to hear that communication and the scanner will display the proper talkgroup number and any alpha tag.
  • Page 51: Programming Motorola Systems

    Programming Motorola Systems Follow the instructions in this section to program information for Motorola Type I, II, IIi Hybrid, and APCO 25 Digital trunking systems. Using Control Channel Programming Your scanner has a powerful feature that lets you program in only the control channels for Motorola 800 and 900 MHz systems.
  • Page 52: Programming Type2/Digital Vhf And Uhf Systems

    3. Select one of the following trunk types for Motorola Type 2 or digital Systems: 1:TYPE2/P25 800 Motorola Type 2 or Digital systems in the 800 MHz band 3:TYPE2/P25 900 Motorola Type 2 or Digital systems in the 900 MHz band 4.
  • Page 53: Programming Type I And Iii Hybrid Systems

    5. Select the channel to store the information into. 2:TRUNK CHANNEL Use the scroll bar to select a channel within the bank to store a system frequency, then press E. 6. Store the channel information 1:FREQUENCY Enter the frequency for the channel, then enter an Alpha Tag for the channel. Repeat Steps 5 and 6 to store the rest of the frequencies for the system.
  • Page 54: Toggling The Status Bit

    Toggling the Status Bit Motorola talkgroup ID’s are sent as a 16-bit binary number. Normally, the last 4 positions in the number are 0’s, which result in all talkgroups being equally divisible by 16. These last four bits, however, can be used by the trunking system to indicate various status conditions. For example, an emergency status could be indicated by setting the second-from last digit to 1.
  • Page 55: Programming Edacs Systems

    Programming EDACS Systems Follow the instructions in this section to program information for EDACS Wide, EDACS Narrow, and EDACS SCAT trunking systems. Note that to program these systems, in addition to knowing the system type and frequencies used, you must know the logical channel numbers (LCN) for the system’s frequencies.
  • Page 56: Setting Edacs Decimal Mode

    Setting EDACS Decimal Mode By default your scanner displays EDACS talkgroups in AFS format (see “Understanding Scanning”). However, you can use this option to display and enter talkgroups in digital format. 2:SCAN OPTION → 2:TRUNK → Select the bank → :EDCS ID FORM 1:AFS Display the talkgroup ID in Agency-Fleet-Subfleet (AFS) format.
  • Page 57: Programming Apco 25 Systems

    Programming APCO 25 Systems To program an APCO 25 system, follow the steps in the appropriate section for conventional or Motorola Trunking. APCO 25 systems require only 1 additional setting: Sound Quality. Setting APCO 25 Sound Quality Each APCO 25 system has slightly different system settings that control how the audio is digitized.
  • Page 58: Programming Ltr Systems

    Programming LTR Systems Follow the instructions in this section to program information for LTR trunking systems. For more information about LTR systems, refer to “Understanding Scanning.” 2:SCAN OPTION → 2:TRUNK → Enter the bank → 1:TRUNK TYPE → 1:ON → 9:LT → 2:TRUNK CHANNEL 1.
  • Page 59: Programming Talkgroups

    Programming Talkgroups For many of the trunk scanning features to operate, you need to program the scanner with the talkgroup ID’s. Each bank can store up to 100 talkgroups in 10 ID groups of 10 talkgroups each. Group similar talkgroups together in the same ID group. When scanning, you can turn ID groups on and off with a quick keypress.
  • Page 60: Deleting Stored Talkgroup Id's

    Deleting Stored Talkgroup ID’s To delete a stored talkgroup ID: 1. While scanning a trunked system in the ID scan mode (see “Scanning Only Stored Talkgroups”), press ▲/HOLD. Or, to use the menu system: 2:SCAN OPTION → 2:TRUNK → Select the bank → 3:TALK GROUP 2.
  • Page 61: Using The Remote Interface

    Using the Remote Interface You can connect your scanner to either a PC or another BC796D using the remote interface cable port. This allows you to either control and program your scanner using a PC and the supplied software and cable or clone the memory from one BC796D into another BC796D (gender changer/coupler required, not supplied).
  • Page 62 During transfer both scanners display the following. When transfer is complete, the scanners display COMPLETE. Turn both scanners off and then back on to initialize them. If data transfer is not successful, the following message appears. To clear the error, press CLONE == >...
  • Page 63: Care And Maintenance

    Repairs • Do not attempt any repair. The scanner contains no user serviceable parts. Contact the Uniden Customer Service Center or take it to a qualified repair technician. Birdies • All radios can receive birdies (undesired signals). If your scanner stops during Scan mode and no sound is heard, it may be receiving a birdie.
  • Page 64: Troubleshooting

    Troubleshooting If your BC796D is not performing properly, try the following steps. Problem Scanner won't work. Improper reception. Scan won't stop. Scan won't start. Weather Scan won't work. 1. Adjust squelch threshold - refer to page 19, "Setting the Squelch". If you experience difficulty while in TrunkTracker mode, try the following steps.
  • Page 65 If you still cannot get satisfactory results while using your scanner or if you want additional information, please call or write the Uniden Parts and Service Division. The address and phone number is listed in the warranty at the end of this manual. If you would like immediate assistance, please call Customer Service at (800)297-1023.
  • Page 66: Specifications

    Certified in accordance with FCC Rules and Regulations Part 15, Subpart C, as of date of manufacture. Channel: 1000 Banks: 10 (100 channels each) Service Bands: 12 preprogrammed search bands (including the NOAA Weather Service band) Frequency Range: 25.0-28.0 MHz 28.0-29.7 MHz 29.7-50.0 MHz 50.0-54.0 MHz...
  • Page 67: Glossary Of Terms

    Glossary of Terms Alpha tag - This term refers to an alphanumeric text tag that you can enter to describe the individual frequencies that you have programmed. Rather than having to associate a spe- cific frequency to the individuals that are using it, you can enter the actual name of the group.
  • Page 68 • Enter or modify the Trunking ID. ( this can be modified through the menu screen.) FIPS Codes - For the purpose of broadcasting weather information, the NWS (National Weather Service) has divided 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.
  • Page 69 Status Bit - This term refers to Motorola Type II systems. There is a method by which special types of communications utilize unique talk group numbers. For example, if all emergency calls are set to occur on a specific talk group number then you will not miss the transmission even if you have not programmed all the talk group numbers.
  • Page 70: Appendix

    Preset Fleet Maps Preset Map 1 Block SIZE CODE 11 SIZE CODE 11 SIZE CODE 11 SIZE CODE 11 SIZE CODE 11 SIZE CODE 11 SIZE CODE 11 SIZE CODE 11 Preset Map 3 Block SIZE CODE 12 (SIZE CODE 12) Preset Map 5 Block SIZE CODE 12...
  • Page 72: User Defined Fleet Maps

    User Defined Fleet Maps Type I Programming Information When a Type I system is designed, the address information for all the IDs are divided into 8 equal sized blocks. When you program your scanner to track a Type I system, you must select a size code for each of these blocks.
  • Page 73: Fleet Map Size Codes

    Fleet Map Size Codes Size Size Code Restrictions If you select SIZE CODE 12, 13, or 14, there are some restrictions as to which blocks can be used for these codes. • SIZE CODE 12 can only be assigned to Blocks 0, 2, 4, or 6. •...
  • Page 74 NWR-SAME EVENT CODE Event Code Emergency Action Notification Emergency Action Termination National Information Center Tornado Warning # Service Thunderstorm Warning # SVW Flash Flood Warning Flash Warning Winter Storm Warning Blizzard Warning High Wing/ Dust Storm Warning Radio logical Hazard Warning Civil Danger Warning Local Area Emergency Hazardous Material Warning...
  • Page 75 Event Code Standard Severe Weather Statement Special Weather Statement Flash Flood Statement Flood Statement Hurricane Statement National Periodic Test Required Monthly Test Required Weekly Test System Demonstration/ Practice National Hazard Warning Unknown Emergency Tune TV Unknown Warning Tune TV Unknown Watch Tune TV Unknown Statement Tune TV Administrative Message Child Abduction Emergency...
  • Page 76 REVERSE LIST Range 29.520 - 29.580 29.620 - 29.680 52.010 - 52.990 53.010 - 53.990 143.750 143.900 144.510 - 144.890 145.110 - 145.490 146.010 - 146.385 146.415 - 146.505 146.595 146.610 - 146.985 147.000 - 147.390 147.415 - 147.505 147.595 147.600 - 147.990 148.125 148.150...
  • Page 77 BC796D Flow Charts...
  • Page 80: One Year Limited Warranty

    (E) used in any conjunction with equipment or parts or as part of any system not manufactured by Uniden, or (F) installed or programmed by anyone other than as detailed by the owners manual for this product.
  • Page 81 Memo...
  • Page 82 Memo...
  • Page 83 Memo...