Where To Get More Information, Simplex Operation | Uniden USC230

SC230 Paper OM 062206.fm Page 19 Friday, July 21, 2006 7:39 PM

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 isn’t, the scanner quickly moves to the next channel. If there is, then the scanner pauses on the transmission until it is over.

Simplex Operation

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. This type of radio is frequently used at construction job sites, and with inexpensive consumer radios such as LPD/PMR radios. The range is typically 1-5 km, depending upon the terrain and many other factors.

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. When a user transmits (on an input frequency), the signal is picked up by the repeater and retransmitted (on an output frequency). The user’s radios always listen for activity on the output frequency and transmit on the input frequency. Since the repeater is located very high, there is a very large line of sight.

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.

Understanding Scanning

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Uniden USC230 owner manual Where To Get More Information, Simplex Operation, Repeater Operation

Contents

OWNER’S Manual Precautions Precautions SC230 Paper OM 062206.fm Page 3 Friday, July 21, 2006 739 PM Contents Using the Menu Programming Radio Systems Setting Close Call Options Close Call Hits Introduction Introduction Mode Step kHz SC230 Paper OM 062206.fm Page 9 Friday, July 21, 2006 739 PM Feature Highlights Feature Highlights Feature Highlights Auto Store How the Scanner’s Controls Are Represented in This Manual About This Manual Entering Text Understanding the Scanner’s Memory What is Scanning?What is Searching? Understanding Scanning What is CTCSS/DCS? Ctcss Frequencies Hz Conventional Scanning Using the Scanner at the Racetrack Simplex Operation Where To Get More InformationRepeater Operation Information On The Internet Included With Your Scanner Included With Your Scanner Setting Up Your Scanner Setting Up Your ScannerUsing Internal Batteries Using Rechargeable Batteries Using Non-rechargeable Batteries Setting Up Your Scanner Connecting the Antenna Using AC PowerConnecting an Optional Antenna Connecting an Extension Speaker Connecting an Earphone/HeadphoneAttaching the Belt Clip Attaching the Wrist Strap Installing the Demo Software Key Name Description Look At The Keypad + 1-9, 0/Race Selects Rcl Look At The Display Using Func Using MenuUsing the Scroll Control Basic Operation Turning On the Scanner Setting the SquelchBasic Operation Scanning Systems Scanning Preprogrammed Races When You Get To The TrackBefore You Get To The Track Selecting Interference Eliminator Codes Selecting Systems to Scan Locking/Unlocking Systems Selecting System Channel Groups Temporarily Holding On a System Locking/Unlocking ChannelsHolding On a Channel Quickly Recalling Channels Quick-Storing Channels Other Settings Initializing the Scanner’s Memory Using the Backlight Connecting Your Scanner to a Personal Computer Using the PC Control Cloning Options Cloning the Scanner Using the Menu Using the Menu Set up Priority Scan Quickly Programming Racing Systems Programming Radio SystemsProgramming Radio Systems Enter Driver Programming Radio Systems Editing the Car Manually Programming Racing Systems Editing a Driver Entering/Editing a Car Number Editing a Car’s Channel Setting a Car’s Quick KeyDeleting a Car Programming Conventional Systems Setting Lockout On a Car Entering/Editing Conventional Channels Entering/Editing Conventional Channel Groups Programming Radio Systems Editing the System Quick Key Conventional Systems Only System-Level SettingsProgramming/Editing Optional Settings Editing the System Name Setting the System Hold Time Setting Group Lockout Setting Data Skip Setting the Channel Delay Time Entering/Editing the Group Name Group-Level SettingsDeleting Systems Copying Systems Edit Group Select the group Set Quick Key Setting the Group Quick Key Deleting Groups Channel-Level SettingsEditing the Channel Name Conventional Systems Only Setting Channel Priority Setting CTCSS/DCS Setting Channel Alert Setting Channel Modulation Setting the Frequency Step Setting Channel Attenuation Deleting Channels Setting Channel Lockout Copying/Pasting Channels Quick Search Service SearchSearching and Storing Changing the step of Air Band Custom Search CTCSS/DCS Search Custom Frequency MHz Preset Custom Search Range Custom Editing a Custom Search Range Auto Search and Store Storing a System Selecting a System Using the Close Call Feature Using the Close Call Feature Turn the scroll control to select an option Setting Close Call Options Using the Close Call Feature Close Call Hits Unlocking All Frequencies Search and Close Call OptionsManaging Locked-Out Frequencies Searching for Subaudible Tones Setting the Modulation Type Setting the Maximum Auto Store Value Setting Data Skip Setting AttenuationSetting the Delay Time Setting the Search Frequency Step Location Care and MaintenanceCleaning General Use Troubleshooting Troubleshooting Troubleshooting Specifications Specifications Optional Accessories Optional Accessories Collecting Information PlanningPlanning Planning Race Name Filling Out The Racing System WorksheetCar #/Driver-Frequency-Priority-CTCSS/DCS Racing System Worksheet Frequency-Alpha Tag-Priority-CTCSS/DCS Filling Out The Conventional System WorksheetSystem Name and Quick Key Group Name and Quick Key Conventional System W orksheet Conventional System Worksheet Preprogrammed Systems Preprogrammed Systems Declaration of Conformity Declaration of ConformityPage Page Page Uniden Corporation All rights reserved UBZZ01346ZZ0