EFJohnson 98x3, 98x6, 002-9803-601 manual Setting Squelch Control, Microphone Off-Hook Detect

Page 18

GENERAL OPERATION

The current mode remains selected until the menu mode is selected or transceiver power is cycled. The programmed default mode is then selected if applicable.

Setting Squelch Control

NOTE: This sets the squelch level used for conventional calls. The squelch level for LTR-Net and LTR calls is preset and not affected by this adjustment. For more information on operating modes, refer to page 19.

If conventional systems are programmed, the squelch level can be set if the FCN option switch is enabled. Proceed as follows:

1.Select a conventional system and a group that is not busy. Take the microphone off-hook to enable monitoring.

2.Press the FCN switch and then rotate the Select switch as you would a normal squelch control. Rotate it counterclockwise until receiver noise is heard and then clockwise slightly past the point where the noise mutes. The squelch adjust mode is indicated by “SQUELCH” on the upper line of the display, and the relative squelch level is indicated by a bar graph on the bottom line.

3.To select the current level and exit this mode, press the Select switch. This also occurs automatically 2 seconds after no change is made or 8 seconds after no activity.

4.If both narrow and wide band channels are used, perform this adjustment on both types because separate settings are maintained.

NOTE: Some readjustment may be required if weak messages are not heard or unsquelching occurs when no messages are present.

Microphone Off-Hook Detect

Microphone off-hook detection can be disabled by program- ming. Taking the microphone off-hook then does not disable scan-

18

Image 18

Contents LTR-Net 9800 Series Page Page Safety Information FCC Exposure Limits Frequency Whip Model No Base Model No Table of Contents Table of Contents Quick Reference Guide Features General FeaturesControls and Display Front Panel ControlsMicrophone Push-To-Talk PTT Switch Not Shown Push Rear Panel Jacks and Connectors Display Description Power-Up Sequence Determining Volume LevelGeneral Operation Backlight Operation Numeric Display ModeAlpha Display Mode System/Group Display ModesSelect Mode Indication With Numeric Display Select Mode Indication With Alpha Tag DisplaySelecting the System and Group Setting Squelch Control Microphone Off-Hook DetectLTR-Net, LTR, and Conventional Operation IntroductionGeneral Features Bank SelectCall Indicator Emergency SwitchEncryption Function FCN Switch Home System/Group SelectHorn Alert Enabled Horn AlertPower Turn-Off Delay Option SelectProceed Clear-To-Talk Tone Receive-Only GroupsStealth Mode Time-Out TimerTone Select General Standard Group CallsTransmitter Thermal Foldback Placing a Standard Group CallLTR-Net and LTR Operation Conventional OperationTelephone Calls Receiving a Standard Group CallPlacing Telephone Calls Receiving a Telephone Call LTR-NET Auxiliary Calls Landside-Originate Telephone CallsPlacing LTR-Net Auxiliary Calls Receiving Auxiliary CallsOption Switches Menu Mode Option SwitchesMenu Mode Introduction Menu Mode and Option Switch Functions SwitchUsing Menu Mode System and Group ScanningSystem and Group Scanning System and Group Scanning Scan List Programming Transmitting In The Scan Mode Scan Delay and Continue TimersLTR-NET and LTR Features Transmit InhibitCalls on Priority ID Codes Telephone Group SelectLTR-NET Features LTR-Net Standard and Special CallsBusy Queuing Roaming Standard Group Calls LTR FeaturesConventional Features Telephone CallsMonitor Mode Selected Transmit Disable On Busy Talk-AroundMiscellaneous Call Guard SquelchSupervisory Tones Miscellaneous LTR-Net Special Call Tones LTR Telephone Call TonesDisplay Messages Miscellaneous Menu Mode Messages Bright DIM OFFSystem Operator Programming Speaking Into MicrophonePreventing Battery Discharge Operation At Extended RangeLicensing Transceiver Service Miscellaneous