These systems make use of a special subaudible tone that accompanies a transmitted signal. CTCSS and DCS are also used in areas that receive interference where there are several stations with output frequencies close to each other.
When this occurs, you might hear multiple communications on the same frequency. The stations might even interfere. Conventional scanning is a relatively simple concept. Each group of users in a conventional system is assigned a single frequency for simplex systems or two frequencies for repeater systems. Any time one of them transmits, their transmission always goes out on the same frequency.
Today there are still many 2-way radio users who operate using a conventional system:. When you want to store a conventional system, all you need to know is the frequencies they operate on. When you are scanning a conventional system, the scanner stops very briefly on each channel to see if there is activity. If there is, then the scanner pauses on the transmission until it is over. Simplex systems use a single frequency for both transmit and receive.
Most radios using this type of operation are limited to line-of-sight operation. The range is typically km, depending upon the terrain and many other factors.
Repeater systems use two frequencies: one transmits from the radio to a central repeater; the other transmits from the repeater to other radios in the system.
With a repeater-based system, the repeater is located on top of a tall building or on a radio tower that provides great visibility to the area of operation. When a user transmits on an input frequency , the signal is picked up by the repeater and retransmitted on an output frequency. Since the repeater is located very high, there is a very large line of sight. By itself, this manual really only provides part of what you need to know to have fun scanning — how to program and use the scanner.
The Internet is a great source for current frequencies and information about scanning. Many web sites have lists of frequencies for your area. You can use a search engine to find and use them. Make a list of the agencies you want to listen to, then look up the frequencies and systems used by those agencies. You can purchase this type of antenna. A mating plug might be necessary for the optional antennas. Read the precautions on the inside front cover of this Owners Manual.
Before installing batteries, set the switch in the battery compartment to match the type of batteries you will use. Remove the battery cover and set the battery switch. Never attempt to recharge non-rechargeable batteries. Non-rechargeable batteries can get hot and can even burst if you try to recharge them. When flashes and the scanner beeps every 15 seconds, replace the batteries.
You can also use three rechargeable batteries to power your scanner. Before you use rechargeable batteries, you must charge them. The scanner has a built-in circuit that lets you recharge batteries while they are in the scanner. Do not connect the AC adapter to the scanner if non-rechargeable batteries such as alkaline batteries are installed in the scanner and. Before you use rechargeable batteries for the first time, charge them for 14 hours to bring them to a full charge. Discharged batteries take about 14 hours to fully recharge.
If an AC adapter is connected to the scanner, the scanner checks the condition of the installed batteries. If the scanner is turned off and the batteries require a full charge, Normal Charging appears as the batteries are recharged. When the batteries are fully charged, Charge Complete appears. If no batteries are installed in the scanner, No Battery appears. If there is a problem with the installed batteries, Battery Error appears.
Before you use the scanner, remove the protective plastic sticker over the display. To use the scanner on AC power, plug the adapter into 6V mA on the right side of the scanner, then plug the AC adapter into a standard. To attach the supplied flexible antenna to the connector on the top of your scanner, simply screw it onto the scanner's SMA connector.
The scanner's SMA connector makes it easy to connect a variety of optional antennas, including an external mobile antenna or outdoor base station antenna. If the antenna is over 50 feet from the scanner, use RG-8 low-loss dielectric coaxial cable.
Cable loss increases with higher frequency. This automatically disconnects the internal speaker. In a noisy area, an optional amplified extension speaker, positioned in the right place, might provide more comfortable listening. Plug the speaker cable's. This might damage the scanner. Never connect any part of the headphone jack to the antenna jack or connect the radio to an installation where the antenna and audio connection are grounded.
To make your scanner easier to carry when you are on the go, use the supplied belt clip. Rotate the scanner upside down to remove it from the clip. To keep your scanner safely close at hand, use the supplied wrist strap. Push the small loop on one end of the wrist strap through the lug on the right side of the scanner, then thread the other end of the wrist strap back through the small loop to secure it.
Your scanner's keys have various functions labeled on the key tops and below the keys. To select the function labeled on a key, simply press the key.
To select the function labeled below a key, hold down Func on the left side of the scanner then press the key. If your scanner's keys seem confusing at first, the following information should help you understand each key's function. The display has indicators that show the scanner's current operating status. The display information helps you understand how your scanner operates. Sn: - appears with a number to show the currentlyselected System Quick Key number.
For example, if System Quick Key 75 is selected, S7: appears. The currently active system indicator flashes. ATT - appears when the attenuation feature is turned on. GRP - shows the currently activated group or selected group Quick Key number, appears with numbers 0 - 9.
The currently active group indicator flashes. SCAN - scrolls while the scanner is scanning. DSKP - appears when data skip is turned on. HOLD - appears while the scanner is set to scan or search hold mode. SCR - appears when one or more broadcast screen bands are turned on.
Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions. Enter a new password. Precautions Before you use this scanner, please read and observe the following. Contents Introduction To change the band plan: 1. Feature Highlights General Dynamic Channels - Your scanner stores channels more efficiently than conventional scanners, letting you store and quickly tune greater numbers of interesting frequencies.
If you lock out a system or group, any channels belonging to that system or group are also locked out. Feature Highlights. Auto Store Frequency AutoStore — Automatically stores all active frequencies into the selected conventional system. Priority Priority Scan — Priority channels let you keep track of activity on your most important channel s while monitoring other channels for transmissions. Priority Plus — You can set the scanner so it scans only the priority channels Backlight and Power Display and Keypad Backlight — Makes the display and keypad easy to see in dim light.
About This Manual The screen displays used in this manual are representations of what might appear when you use your scanner. Using the Multifunction Scroll Control The scroll control on top of the UBCXLT lets you easily control channel selection, volume, and squelch, and how information appears on the display.
Entering Text To enter a letter, turn the scroll control until the character you want appears, To enter a number, press a number key.
It also instructs you to turn the scroll control shown as to view a series of choices then press the scroll control shown as to select a choice Edit Name. Understanding Scanning This section provides you with background on how scanning works. No memory space is wasted, and you can tell at a glance how much memory you have used and how much remains. Understanding Scanning. Simplex Operation Simplex systems use a single frequency for both transmit and receive.
Repeater Operation Repeater systems use two frequencies: one transmits from the radio to a central repeater; the other transmits from the repeater to other radios in the system. Where To Get More Information By itself, this manual really only provides part of what you need to know to have fun scanning — how to program and use the scanner.
Information On The Internet The Internet is a great source for current frequencies and information about scanning. You can purchase this type of antenna at a local electronics store. Using Internal Batteries You can power your scanner using three alkaline or rechargeable AA batteries. Setting Up Your Scanner. Replace the cover. Using Rechargeable Batteries You can also use three rechargeable batteries to power your scanner. Removing the Display Sticker Before you use the scanner, remove the protective plastic sticker over the display.
Connecting the Antenna To attach the supplied flexible antenna to the connector on the top of your scanner, simply screw it onto the scanner's SMA connector.
You can carry it with you wherever you go. Page 8: Feature Highlights Feature Highlights Feature Highlights General Dynamic Channels - Your scanner stores channels more efficiently than conventional scanners, letting you store and quickly tune greater numbers of interesting frequencies.
Close Call RF Capture Technology - You can set the scanner so it detects and provides information about nearby radio transmissions. Page 9 Broadcast Screen — Sets the scanner so it ignores Close Call or search hits on known broadcast frequencies. Custom Screen — Lets you input up to 10 frequency ranges that the scanner will ignore during Close Call or search operation.
Dropout Delay — Page Auto Store Quick Recall — Lets you quickly select a specific channel by choosing the system, group, and channel. Text Tagging — Page Pc Control And Cloning Priority Priority Scan — Priority channels let you keep track of activity on your most important channel s while monitoring other channels for transmissions.
Page About This Manual About This Manual The screen displays used in this manual are representations of what might appear when you use your scanner.
Since what you see depends on the frequencies for your area and the settings you select, you might notice some differences between what is in this manual and what appears on your scanner.
Page 14 To get the most from this manual, review the contents to become familiar with the basic functions available. Page Understanding Scanning Understanding Scanning Understanding Scanning This section provides you with background on how scanning works.
When you select frequency bands to search, the scanner searches for any active frequency within the lower and upper limits you specify.
When the scanner finds an active frequency, it stops on that frequency as long as the transmission lasts. Page 17 with each other to the point where it is impossible to clearly receive any of the stations. Page Conventional Scanning Conventional Scanning Conventional scanning is a relatively simple concept. Each group of users in a conventional system is assigned a single frequency for simplex systems or two frequencies for repeater systems.
Page Repeater Operation Repeater Operation Repeater systems use two frequencies: one transmits from the radio to a central repeater; the other transmits from the repeater to other radios in the system.
With a repeater-based system, the repeater is located on top of a tall building or on a radio tower that provides great visibility to the area of operation. Page Using Rechargeable Batteries 2.
Never attempt to recharge non-rechargeable batteries. Non-rechargeable batteries can get hot and can even burst if you try to recharge them. Page Removing The Display Sticker If an AC adapter is connected to the scanner, the scanner checks the condition of the installed batteries. If the scanner is turned off and the batteries require a full charge, Normal Charging appears as the batteries are recharged.
When the batteries are fully charged, Charge Complete appears. Page Connecting The Antenna Connecting the Antenna To attach the supplied flexible antenna to the connector on the top of your scanner, simply screw it onto the scanner's SMA connector. Connecting an Optional Antenna The scanner's SMA connector makes it easy to connect a variety of optional antennas, including an external mobile antenna or outdoor base station antenna.
Never connect any part of the headphone jack to the antenna jack or connect the radio to an installation where the antenna and audio connection are grounded.
This might damage the scanner. Attaching the Belt Clip To make your scanner easier to carry when you are on the go, use the supplied belt clip. Page 26 If your scanner's keys seem confusing at first, the following information should help you understand each key's function. Resumes the scan or the frequency search when pressed again. Page 27 Key Name Description — Turns the display backlight on or off. Press and hold for more than 2 seconds to turn the scanner on or off.
GRP - shows the currently activated group or selected group Quick Key number, appears with numbers Using Func To select the function labeled below a key on the front of the scanner, hold down on the left side of the Func Press and hold for about 2 seconds to turn on the scanner.
The UBCXLT scans all unlocked systems in all activated quick-key groups and any searches unlocked for search and scan. Program a system or select a system to scan.
To stop scanning the system s , press if the quick key is a 2-digit quick key then the number button or buttons again. The Sx: system indicators on the display show the systems that are currently selected. To select or lock out a system that is not assigned to a key, press and hold while you rotate the scroll While holding down , rotate the scroll control Func to select the system where the channel is stored. These are created if they do not exist.
Then, the scanner prompts you to save other channel settings. If you pressed No in Step 3, the scanner prompts you to select the system where you want to store the frequency. To use the menu, press on the left side of the Menu scanner. Squelch There should be a knob on your scanner to control the Squelch. When you start to search or scan then you should turn the Squelch down just enough to get rid of the background noise so that the scanner can scan through all the channels.
If you leave the Squelch turned up then you will hear the background noise and the scanner will stop on that channel and will not scan. Scanner Range Both VHF and UHF are short range, line-of-sight radio transmissions which are restricted to a maximum range of about miles due to the curvature of the earth and usually considerably less depending on the surroundings hills etc.
This means you should easily pick up transmissions from an aircraft in the air as there are no obstructions between you and the aircraft, but you may not hear the control tower of a nearby airport because there are obstructions such as hills and buildings etc. If you want to hear the control tower as well as the aircraft then you should visit the airport.
UK Airshows People usually use scanners at UK airshows to listen in on the control tower and the pilots so that they know what is happening and when the aircraft are about to display.
It is a good idea to be discreet with your scanner and use earphones so that you don't draw attention to yourself or disturb other people at the show.
The frequencies used at UK Airshows are usually in the civilian frequency range of Mhz but if you wanted to listen in on the Red Arrows leader barking out his commands then you will need a scanner capable of listen to military aircraft transmissions in the range of MHz.
If you are going to an airshow outside of the UK then check out their laws regarding airband scanners and if you are not sure then do not take your scanner with you.
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