Radio Shack PRO-92 Setting Squelch for the Trunking Mode, Programming Trunking Frequencies

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SETTING SQUELCH FOR THE TRUNKING MODE

Your scanner automatically mutes the audio during trunk scanning when it decodes control channel data. Howev- er, we recommend you turn SQUELCH clockwise and leave it set to a point just after the hissing sound stops. This lets the scanner quickly acquire the data channel.

PROGRAMMING TRUNKING

FREQUENCIES

You program trunking frequencies just like non-trunked frequencies, except that you must store the appropriate mode (MO, ED, or LT) with each frequency.

Notes:

•You can store only one trunked EDACs and Motor- ola channel in a bank. You can, however, mix LTR and conventional channels in a bank.

•If you are scanning UHF trunking frequencies under the 512 MHz range using subaudible data and are not using a base frequency and offset, lock out all data channels. See “Programming Motorola Trunk- ing Systems (UHF-Lo)” on Page 51 and “Locking Out Channels or Frequencies” on Page 41. Turn off the scanner to remove the lockouts.

•If you are programming trunked frequencies for Motorola Type I and hybrid systems, you must first program the fleet map (see “Programming Fleet Maps” on Page 53).

•You must store frequencies using the subaudible trunking method in banks, mode by mode.

Follow these steps to program trunked frequencies.

1.Press PGM and select the bank, then press TRUNK to enter the ID program mode.

2.Repeatedly press MODE to select LT for EF Johnson, MO for Motorola, or ED for the EDACS (GE/Ericsson) system to scan. This sets the talk group ID decoding method to be used for the bank.

50	Trunking Operation

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Contents PRO-92 Handheld Scanner Contents Special Features OperationTrunking Operation TroubleshootingCare Specifications General Guide to ScanningFeatures Scanner scans Features FCC Notice Scanning LegallyPower Sources PreparationUsing Batteries Preparation11 Charging Rechargeable Batteries Replace the coverUsing AC Power Using Vehicle Power PWR DC 9V jackConnecting the Antenna Connecting an Optional AntennaConnecting AN EARPHONE/ Headphones Listening SafelyTraffic Safety Connecting AN Extension SpeakerUsing the Belt Clip Connecting the Clone Cable About Your ScannerLook AT the Keypad About Your Scanner Look AT the Display Channel Storage Banks 7 are turned off Search ModeUnderstanding Banks PL Codes Understanding CTCSS/DCSSearch Banks DPL CodesUnderstanding Your SCANNER’S Modes Open and Closed ModesAM Mode FM Mode LTR E. F. Johnson ModeMotorola Mode Edacs Mode 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 Press To Enter a Character from this GroupPress Finding and Storing Active FrequenciesSearching a Preprogrammed Frequency Range Func 9 w x y zCurrent Search Bank Func then Tune Storing a Frequency While Searching for a Specified ChannelChanging a Search Range with a Preprogrammed Range Scanning the Channels Manually Changing a Search RangeManually Tuning a Frequency Turning Channel-Storage Banks Off and OnListening to a Weather Channel Deleting Frequencies from ChannelsListening to the Weather Band Displaying Weather MessagesSpecial Features Using the Delay FunctionReviewing the Lock-Out Channels Locking OUT Channels or FrequenciesLocking Out Channels Locking Out FrequenciesClearing All Lock Out Frequencies in a Search Bank Reviewing Locked-Out FrequenciesClearing a Locked-Out Frequency Locked-outPriority Special Features Display Description Changing the Receive ModeChanging the Frequency Step Using the Attenuator Range MHz Search Step kHzTurning the KEY Tone on and OFF Using the Display BacklightUsing the Keylock Changing the Display ContrastTrunking Operation Cloning the Programmed Data from Scanner to ScannerUnderstanding Trunking Setting Squelch for the Trunking Mode Programming Trunking FrequenciesProgramming Motorola Trunking Systems UHF-Lo Offset Frequency Programming Fleet Maps Size CodeTalk Group IDS Storing Talk Group IDs Talk Group ID HoldClearing Talk Group IDs Locking Out Talk Group IDsReviewing Locked-Out Talk Group IDs Clearing All Talk Group IDs in One BankClosed Mode Open and Closed ModesGeneral Guide to Scanning Changing the Open/Closed ModeMode Open Closed Ham Radio Frequencies Guide to FrequenciesUS Weather Frequencies Birdie FrequenciesGeneral Guide to Scanning Primary Usage Guide to the Action BandsTypical Band Usage VHF BandAbbreviations Services Band AllocationMeter Amateur Band- 50-54 MHz Meter Amateur BandVHF Low Band- 29-50 MHz in 5 kHz steps Aircraft Band- 108-137 MHzLow Band 450-470 MHz Government Band 406-420 MHzCm Amateur Band 420-450 MHz Frequency Conversion Squelch is not TroubleshootingProblem Possible Cause Remedy DC 9V jack RESETTING/INITIALIZING the ScannerResetting the Scanner Initializing the Scanner ResetCare Specifications UHF T9V DC Specifications71 Limited One-Year Warranty

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