Radio Shack PRO-92 manual DPL Mode

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20-522.fm Page 30 Friday, September 17, 1999 12:46 PM

When the scanner receives a transmission on a channel set to the PL mode, it first decodes the PL tone included with the transmission. In the Open mode, the scanner stops on the transmission and displays the PL tone on the bottom line of the display (or displays None if no tone is included). In the Closed mode, the scanner only stops on the transmission if the PL tone matches the tone that you specified for the channel.

PL tones range in frequency from 67 Hz to 254.1 Hz. You select a PL tone by pressing STEP while programming a channel.

DPL Mode

This sets the scanner to decode digital PL tones used with some FM transmissions. Similar to PL, DPL is a digi- tal “signature” encoded on a subaudible carrier. In addi- tion to preventing interference from other nearby radio systems, DPL can also identify a specific user or group of users on a radio system. When you select the DPL mode for a channel, you can also set a specific DPL code for that channel.

When the scanner receives a transmission on a channel set to the DPL mode, it first decodes the DPL code in- cluded with the transmission. In the Open mode, the scanner stops on the transmission and displays the DPL code on the bottom line of the display (or displays None if no code is included). In the Closed mode, the scanner only stops on the transmission if the DPL code matches the code that you specified for the channel.

DPL codes range from D017 to D754 (only 100 codes are actually used within this range). You select a DPL code by pressing STEP while programming a channel.

DPL is not as popular as PL, because the effective range of DPL-encoded signals is less than PL.

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Contents PRO-92 500-Channel Portable Trunking Scanner Features Your scanner includes these special features Fm Page 4 Friday, September 17, 1999 1246 PM FCC Notice Scanning Legally Pager transmissions Scrambled or encrypted transmissionsContents Special Features Troubleshooting Power Sources Using BatteriesPreparation Fm Page 11 Friday, September 17, 1999 1246 PM Fm Page 12 Friday, September 17, 1999 1246 PM Charging Rechargeable Batteries Using AC Power Using Vehicle Power PWR DC 9V jackConnecting the Antenna Connecting AN EARPHONE/ Headphones Connecting an Optional AntennaConnecting AN Extension Speaker Traffic SafetyListening Safely Using the Belt Clip Connecting the Clone CableAbout Your Scanner Look AT the KeypadFm Page 21 Friday, September 17, 1999 1246 PM Fm Page 22 Friday, September 17, 1999 1246 PM Look AT the Display Motorola Search Banks Understanding BanksChannel Storage Banks Low Freq Hi Freq Step Description MHz KHzGMRS/FRS Fm Page 27 Friday, September 17, 1999 1246 PM Understanding Your PRO-92’S Modes PL Mode AM ModeFM Mode Coded Squelch Modes PL, DPL, and TrunkingDPL Mode LTR E. F. Johnson Mode AhhuuuMotorola Mode Edacs Mode Fm Page 34 Friday, September 17, 1999 1246 PM Turning on the Scanner and Setting Squelch OperationStoring Known Frequencies Into Channels Bank Channel ManualStoring Text Tags Assigning a Text Tag to a ChannelAssigning a Text Tag to a Bank Text Input Chart PressFinding and Storing Active Frequencies Press To Enter a Character from this GroupSearching a Preprogrammed Frequency Range Search Bank Search Range MHz DescriptionCurrent Search Bank Storing a Frequency While Searching for a Specified Channel Manually Changing a Search Range Scanning the Channels Turning Channel-Storage Banks Off and OnManually Tuning a Frequency Deleting Frequencies from Channels Listening to the Weather BandListening to a Weather Channel Weather Alert Feature Locking OUT Channels or Frequencies Special FeaturesUsing the Delay Function Locking Out ChannelsReviewing the Lock-Out Channels Locking Out FrequenciesClearing All Lock Out Frequencies in a Search Bank Reviewing Locked-Out FrequenciesClearing a Locked-Out Frequency Locked-outPriority Fm Page 52 Friday, September 17, 1999 1246 PM Changing the Receive Mode Display DescriptionUsing the Attenuator Changing the Frequency StepRange MHz Search Step kHz Using the Display Backlight Using the KeylockTurning the KEY Tone on and OFF Changing the Display Contrast Cloning the Programmed Data from Scanner to ScannerTrunking Operation Understanding TrunkingProgramming Trunking Frequencies Programming Fleet MapsPress 8 and the display below appears Size CodeTalk Group ID’S Storing Talk Group ID’sTalk Group ID Hold Locking Out Talk Groups ID Reviewing Locked-Out Talk Group ID’sClearing Talk Group ID’s Closed Mode Open and Closed ModesClearing All Talk Group ID’s in One Bank Changing the Open/Closed Mode Mode Open ClosedUS Weather Frequencies General Guide to ScanningGuide to Frequencies Ham Radio FrequenciesThis scanner’s birdie frequencies in MHz are Guide to the Action Bands Typical Band UsagePrimary Usage Abbreviations Services Band AllocationMeter Amateur Band -50-54 MHz Meter Amateur BandVHF Low Band- 29-50 MHz -in 5 kHz steps Aircraft Band- 108-137 MHzVHF High Band 148-174 MHz Cm Amateur Band 420-450 MHz Public Safety Band Locally AssignedGovernment Band 406-420 MHz Low Band 450-470 MHzFrequency Conversion Private Trunked BandGeneral Trunked Band Troubleshooting Problem Possible Cause RemedyFm Page 74 Friday, September 17, 1999 1246 PM Reset RESETTING/INITIALIZING the ScannerResetting the Scanner Initializing the ScannerFm Page 76 Friday, September 17, 1999 1246 PM Care and Maintenance Specifications UHF T9V DC RadioShack

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