Motorola XTS 3000 manual Selecting Squelch Operation, Smart PTT

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Common Radio Features

Selecting Squelch Operation

Tone Private-Line® (PL), Digital Private-Line™ (DPL), network ID, and carrier squelch operations are all available in the same radio on a per channel basis.

Note

Network ID is only available on ASTRO “digital” channels (consult your service technician).

When in carrier squelch operation, all traffic on the channel is heard. When in PL, DPL, or network ID operation, your radio responds to only those messages intended for you. PL, DPL, network ID, and carrier squelch can be programmed on a per channel basis.

Smart PTT

Smart PTT is a per-channel, programmable feature used in conventional radio systems to keep radio users from talking over other radio conversations. When smart PTT is enabled in your radio, you will not be able to transmit on an active channel. If you try to transmit (press the PTT Switch) on an active smart-PTT channel, an alert tone will be generated and the transmission will be inhibited. The LED will also blink red to indicate that the channel is busy.

Three radio-wide variations of smart PTT are available:

Transmit Inhibit on Busy Channel with Carrier — With this feature enabled, you will be prevented from transmitting if any activity is detected on the channel.

Transmit Inhibit on Busy Channel with Wrong Squelch Code — With this feature enabled, you will be prevented from transmitting on an active channel with a squelch code or (if secure-equipped) encryption key other than your own. If the PL code is the same as yours, the transmission will not be prevented.

Quick-Key Override — This feature can work in conjunction with either of the two above variations. With this feature enabled, you will be able to override the transmit-inhibit state by quick-keying the radio; in other words, two PTT Switch presses within the time programmed through the radio service software for Smart PTT Quick-Key Timer (default value is 1/2 second).

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Contents Digital XTS 3000 Basic Model Notations Used in This Manual PrefaceCommon Radio Features General Radio OperationsComputer Software Copyrights Special Radio FeaturesAdditional Information Introduction InspectionProgrammable Switches and Buttons Radio ControlsProgrammable Features Switches, Buttons, Knobs, and Indicators Bicolor LEDAntenna Installation and Removal Radio Operating-Frequency TableAntenna Identification Table Installing the Battery Battery Installation and RemovalRemoving the Battery Installing the Belt Clip Belt-Clip Installation and RemovalRemoving the Belt Clip Installing the Universal Connector Cover Universal Connector Cover Installation and RemovalRemoving the Universal Connector Cover Introduction Radio On Turning the Radio On and OffRadio Off Zone Selection Selecting a Zone and ChannelChannel Selection Adjust the Volume Control Knob for a Receiving/TransmittingTime-Out Timer General Radio FeaturesLow-Battery Indication Emergency Entering the Emergency StateCommon Radio Features PTT SwitchExiting the Emergency State Emergency Keep-AliveIndividual Calls Receive Only Answering an Individual Call Call ResponseButton Call Response ButtonRepeater Access PL DefeatRepeater/Direct Selecting Repeater or Direct OperationScan Deleting Nuisance Channels Turning Scan On and OffDynamic Priority Change Conventional Operation Only Selecting Squelch Operation Smart PTTSpecial Radio Features Dynamic RegroupingReprogram Request Select Enable/DisablePress the Reprogram Request Button if programmed, see PTT-ID Transmit Secure Operation Selecting Secure or Clear TransmissionsManaging Encryption KEY LoadingSelectable Power-Level Trunking System Controls Busy OverrideDispatcher-Interrupt FailsoftSite Lock Out-of-RangeSite Change Glossary Alert Tones Sound Tone Name OccursHigh-Pitched Tone Charging Batteries Battery Charging and DisposalRecycling or Disposal of Batteries Hanil Metal Recycle CO Helpful Tips Radio Care CleaningHandling Air Bag Safety Information ServiceIndex Index General Radio Features Questionnaire Business Reply Mail FCC Safety Standards 68P81083C70 6881072C75