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Related Manuals for E.F. Johnson Company LTR 98xx
Summary of Contents for E.F. Johnson Company LTR 98xx
- Page 1 LTR® 98xx SERIES HIGH TIER OPERATING MANUAL Part No. 002-9803-201 November 1999...
- Page 3 Viking Head/EFJohnson logo, LTR®, and Call Guard® are registered trademarks of the E.F. Johnson Company. All other company and/or product names used in this manual are trademarks and/or registered trade-...
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Page 4: Safety Information
SAFETY INFORMATION SAFETY INFORMATION The FCC has adopted a safety standard for human exposure to RF en- ergy. Proper operation of this radio under normal conditions results in user exposure to RF energy below the Occupational Safety and Health Act and Federal Communication Commission limits. WARNING DO NOT allow the antenna to touch or come in very close proximity with the eyes, face, or any exposed body parts while the radio is trans-... -
Page 5: Fcc Exposure Limits
SAFETY INFORMATION FCC EXPOSURE LIMITS This mobile radio transceiver was tested by the manufacturer with an appropriate antenna in order to verify compliance with Maximum Per- missible Exposure (MPE) limits set under Section 2.1091 of the FCC Rules and Regulations. The guidelines used in the evaluation are derived from Table 1 (B) titled “Limits For General Population/Uncontrolled Exposure”... - Page 6 SAFETY INFORMATION of a domestically manufactured 4-door passenger sedan. The radio manu- facturer has determined that the user and service personnel should remain one (1) meter in distance away from the antenna when transmitting. By maintaining this distance, these individuals are not exposed to radio fre- quency energy or magnetic fields in excess of the guidelines set forth in Table 1.
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Page 7: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS SAFETY INFORMATION ........4 QUICK REFERENCE GUIDE . - Page 8 TABLE OF CONTENTS Tone Select ..........30 Transmitter Thermal Foldback .
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Page 9: Quick Reference Guide
QUICK REFERENCE GUIDE QUICK REFERENCE GUIDE System Scan Group Scan Red - Transmit Encryption List List Amber - Transmit (Reduced Pwr) Monitor Green - Busy Conv. Group (Channel) Select Switch Phone Call Priority On-Off/Volume Horn Scan Option (Press/Rotate) (Press/Rotate) Group Alert Selected Power On/Off - Press on-off/volume control. -
Page 10: Features
FEATURES FEATURES General Features • Up to approximately 100 1-group or 40 16-group systems programmable • LTR® and conventional operation • Unique 8-character system and group identification tags • System and group scan • User programmable system and group scan lists •... -
Page 11: Controls And Display
CONTROLS AND DISPLAY CONTROLS AND DISPLAY Transmit/Busy Option Switches Speaker Indicator Microphone On-Off/Volume Select Switch Jack Front Panel Controls On-Off Volume - Pressing this knob turns power on and off. The vehicle ignition switch may also control power as described in “Power Turn-Off Delay”... - Page 12 CONTROLS AND DISPLAY Option Switches - The five front panel option switches can be programmed by your system operator for the functions which follow. Refer to the section indicated for more information on a function. The key cap usually indicates the function controlled by the switch. A/D - Scan list add/delete (see page 35) CG - Call Guard squelch disable (see page 46) EMER - Emergency switch (see page 24)
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Page 13: Rear Panel Jacks And Connectors
CONTROLS AND DISPLAY Speaker - The internal speaker is located behind the grille. An optional speaker can be connected to the external speaker jack located on the back. See “Speaker Jack” description which follows. Power Antenna Speaker Jack Jack Jack Rear Panel Jacks and Connectors Antenna Jack - Miniature UHF jack for connecting the 50-ohm antenna. -
Page 14: Display Description
CONTROLS AND DISPLAY Phone Group Scan System Scan Scan Priority Call Groups List List Selected Monitor Encryption 16-Character Horn Option Alert Message Area Display Description 16-Character Message Area - Indicates the selected system and group (see page 16) and also error conditions and status information. - Indicates that the displayed system is in the scan list and scanned normally (see page 35). -
Page 15: General Operation
GENERAL OPERATION - Indicates that a call has been received on a group programmed for a call indicator (see page 24). To turn this indication off, press any key. - Indicates that the monitor mode is enabled. This mode disables Call Guard squelch and other squelch control features so that all messages are heard on conventional systems (see page 44). -
Page 16: Backlight Operation
GENERAL OPERATION Backlight Operation The display and keypad backlight can be controlled by the BACK- LIGHT menu parameter (see page 38). The three states that can be selected are Bright, Dim, and Off. If this menu parameter is not select- able, the backlight is fixed in one of these states by programming. -
Page 17: Selecting The System And Group
GENERAL OPERATION Selecting the System and Group The front panel Select switch is used to change the system and group. Pressing this switch toggles between the system and group select modes, and then rotating it increases or decreases the system or group. In the Numeric display mode (see preceding description), the system select mode is indicated when the arrow points to “Sxx”, and the group select mode is indicated when it points to “Gxx”... -
Page 18: Setting Squelch Control
GENERAL OPERATION Setting Squelch Control NOTE: This procedure sets the squelch level used for conventional calls only. The squelch level for LTR calls is preset and not affected by this adjustment. For more information on the various operating modes, refer to page 38. -
Page 19: Standard Calls
STANDARD CALLS STANDARD CALLS Introduction Most calls you make are probably the standard type described in this section. These calls are between you and another mobile or control station. The main difference between these calls and the other type that can be placed (telephone calls) is that no number is dialed using a keypad. -
Page 20: Receiving A Standard Call
STANDARD CALLS • If an out-of-range condition exists, the intercept tone sounds (see page 47) and “OUT-RNGE” is indicated on the lower line of the display. No more access attempts are made once this indication appears. Release the PTT switch and drive closer to the radio system or away from shielding structures and try again. -
Page 21: Telephone Calls
TELEPHONE CALLS TELEPHONE CALLS Placing Telephone Calls NOTE: Telephone calls can be placed and received only if that service is available to you and your transceiver has been programmed appropri- ately. A microphone equipped with a telephone keypad is required to dial the telephone number. -
Page 22: Receiving A Telephone Call
TELEPHONE CALLS Out-of-Range - If the System Search feature is selected (see page 42), that feature is automatically selected when the PTT switch is released. The System Search mode is indicated by “SYS SRCH” in the display. 4. With the dial tone sounding, dial the number using the 0-9 keys on the microphone keypad. -
Page 23: Landside-Originate Calls
GENERAL FEATURES Landside-Originate Calls Calls can be placed from a landside telephone to your transceiver if the radio system and transceiver have that capability. With most systems, a mobile can be called directly (each has a unique telephone number). With others, a mobile may be called as follows: 1. -
Page 24: Call Indicator
GENERAL FEATURES Call Indicator The call indicator is “C” in the upper part of the display as shown in the following illustration. The purpose of this indication is to show that a call was received while you were away from the vehicle. Individual groups can be programmed for this feature and it then turns on when a call is received on one of those groups. -
Page 25: Function (Fcn) Switch
GENERAL FEATURES Each group can be programmed so that when it is selected, encryp- tion is automatically enabled. When encryption is enabled, is indi- cated in the display as shown below. Encryption Indicator If you have the ENCRYPT menu parameter or ENCPT option switch, the encryption group programming can be temporarily over- ridden. -
Page 26: Home System/Group Select
GENERAL FEATURES Squelch Adjust - Pressing FCN and then rotating the Select switch with a conventional system selected sets the squelch level as described on page 18. Home System/Group Select To select the preprogrammed Home system/group, simply press the FCN switch and then the Select switch. The Home system/group is then displayed and it becomes the selected system/group. -
Page 27: Option Select
GENERAL FEATURES Manual Off/On Mode The horn alert mode does not change when power is turned on and off by either the ignition switch or power switch. Therefore, the horn alert is entirely controlled by either the HORN option switch or menu parameter. -
Page 28: Proceed (Clear-To-Talk) Tone
GENERAL FEATURES A power turn-off delay allows features such as the horn alert and call indicator to remain active for a time after the ignition switch is turned off. At the same time, advantages of ignition switch control are utilized such as preventing battery discharge that may occur if the transceiver is acci- dentally left on for an extended period (see page 54). -
Page 29: Receive-Only Groups
GENERAL FEATURES Receive-Only Groups Any group can be programmed for monitoring only (transmitting is disabled). If the PTT switch is pressed with one of these groups selected, the intercept tone sounds and “TX DSBL” is displayed. Stealth Mode The stealth mode disables the following tones and indicators so that they do not reveal that you are transmitting or otherwise indicate your presence. -
Page 30: Tone Select
OPTION SWITCHES AND MENU MODE Tone Select If the TONES menu parameter is selectable, the tones that sound can be selected. Otherwise, the tones that sound are fixed by programming. The following choices are available. Refer to page 32 for more informa- tion on using the menu mode. - Page 31 OPTION SWITCHES AND MENU MODE Menu Mode and Option Switch Functions Option See Descrip. Function Menu Items Switch on Page Add/delete (scan list prg) Backlight adjust BACKLGHT Bank select BANK SEL Call Guard Sq. disable Emergency EMER Encryption on-off ENCRYPT ENCPT Function select Home sys/grp select...
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Page 32: Menu Mode Introduction
OPTION SWITCHES AND MENU MODE Menu Mode Introduction The menu mode is selected by pressing the FCN switch twice. If this switch is not programmed, the menu mode is not available. Functions which can be controlled by the menu mode are indicated by an entry in the “Menu Items”... -
Page 33: System And Group Scan
SYSTEM AND GROUP SCAN • Pressing the FCN switch again • Pressing the PTT switch • Automatically when time-out occurs 2 seconds after a change is made or 8 seconds after no changes are made. NOTE: Calls cannot be received or transmitted while the menu mode is selected. - Page 34 SYSTEM AND GROUP SCAN System Scan List Group Scan List System or Group System or Group Scanning Occurring Scanning Selected The type of scanning selected is determined by the menu mode SCN TYPE parameter (see page 32). If that parameter is not selectable, the type of scanning is fixed by programming.
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Page 35: Scan List Programming
SYSTEM AND GROUP SCAN Scan List Programming General NOTE: The selected (displayed) system and group are always scanned, even if they are deleted from the scan list. The system and group scan lists are programmed using the A/D (add/delete) option switch. Pressing this switch changes the status of the displayed system or group. -
Page 36: Scan Delay And Continue Timers
SYSTEM AND GROUP SCAN “Off” is selected, they are no longer saved. Therefore, to store a list, select “On”, program the list, then select “Off”. Then when power is turned on, the scan list returns to the state that existed when “Off” was selected. - Page 37 SYSTEM AND GROUP SCAN Last Selected - The selected system/group does not change when calls are received on other system/groups. Therefore, to respond to a message not on the selected system/group, one of the following methods must be used. With this configuration, the display may not indicate the system/ group on which the response occurs.
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Page 38: Ltr And Conventional Modes
LTR AND CONVENTIONAL MODES LTR AND CONVENTIONAL MODES General Each selectable system can be programmed for LTR or conventional operation by your system operator. The type or types of operation that are programmed in your transceiver are determined by the type of radio equipment being used in your radio system. -
Page 39: Monitoring Conventional Channels Before Transmitting
LTR AND CONVENTIONAL MODES To properly receive calls in the conventional mode, the squelch control must be set as described in page 18. If this control is not set prop- erly, weak messages could be missed or noise could be heard when no message is present. -
Page 40: Ltr Features
LTR FEATURES following illustration. The monitor mode can also be enabled by the MON or CG option switch if it is programmed. Refer to the monitor mode description on page 44 for more information. Monitor Mode Selected LTR FEATURES Standard and Telephone Calls Standard calls are between two mobiles or between a mobile and a control station. -
Page 41: Transmit Inhibit
LTR FEATURES If a call is received on one of the fixed priority ID codes, either “PRIORTY1” or “PRIORTY2” is displayed on the bottom line. The selectable groups are then checked to see if any have the same ID code. If a match is found, the transceiver changes to that group. -
Page 42: Busy Queuing
LTR FEATURES Busy Queuing The LTR busy queuing feature places a telephone call in a queue if the radio system is busy when it is placed. Then when the system becomes available, the call is automatically placed. Standard (mobile-to- mobile) calls are not queued by this feature. If queuing is programmed and a busy condition is encountered, the queue mode is entered automati- cally when the PTT switch is released. -
Page 43: Transpond
LTR FEATURES for a system within range. If enabled, the system search mode is automat- ically entered when the PTT switch is released. This mode is indicated by a short tone and “SYS SRCH” on the bottom line of the display as shown in the following illustration. -
Page 44: Conventional Features
CONVENTIONAL FEATURES CONVENTIONAL FEATURES Monitor Mode The monitor mode is used to monitor a channel before transmitting. When this mode is selected, it temporarily disables Call Guard squelch or other squelch control techniques and also scanning so that all messages occurring on the selected group (channel) are heard. -
Page 45: Talk-Around
CONVENTIONAL FEATURES pressed. When the transmitter is disabled by this feature, the busy tone sounds briefly and “DSBL BSY” is indicated on the lower line of the display. The monitor mode (see preceding section) is enabled while the PTT switch is pressed so that activity on the channel can be monitored. However, it is not possible to access a channel by holding down the PTT switch (it must be released to make another attempt). -
Page 46: Call Guard Squelch
CONVENTIONAL FEATURES Groups may also be programmed so that talk-around cannot be turned off. If the option switch is then pressed, neither “TA OFF” nor “TA ON” is displayed. If the menu mode is used in these cases, the current mode cannot be changed. -
Page 47: Miscellaneous
MISCELLANEOUS complete, the transceiver returns to the previous system/group. If a message is still present, it is received. When a priority system/group is sampled while listening to a message on some other system/group, a series of “ticks” may be heard. These ticks are brief interruptions of the audio signal that occur when sampling takes place. - Page 48 MISCELLANEOUS • Out-Of-Range - If this tone sounds shortly after pressing the PTT switch and “OUT RNGE” is displayed, the transceiver was unable to contact a repeater. The usual cause for this is an out-of-range condition (see “Operation At Extended Range” on page 54). Once this tone sounds, no more access attempts are made until the PTT switch is released and then pressed again.
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Page 49: Ltr Telephone Call Tones
MISCELLANEOUS Priority Call Tone - This is a short tone that sounds when a call is received on a conventional first or second priority channel (see page 46). Wrap-Around Tone - This is a two-pitch tone that indicates that the highest or lowest channel was displayed and that wrap-around has occurred. -
Page 50: Display Messages
MISCELLANEOUS Display Messages The following messages appear on the upper or lower line of the display to indicate various operating modes and error conditions. The group alpha tag appears in this area during normal operation. BLK CALL - Indicates that the call is being received on an LTR block ID code (see “Calls on Priority and Block ID Codes”... - Page 51 MISCELLANEOUS NO DT GP - Indicates that no valid data group could be found for a data transmission. NO POWER - Indicates that the transmitter temperature or supply voltage is excessive and that the transmitter has been automatically shut down. Release the PTT switch and allow the transmitter to cool. If the problem persists, contact your system operator for service.
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Page 52: Menu Mode Messages
MISCELLANEOUS TA ON or OFF - Indicates that talk-around was just enabled or disabled by the TA option switch (see “Talk-Around” on page 45). TIMEOUT - Indicates that the transmitter has been disabled by the Time-Out Timer (see page 29). TX DSBL - Indicates that the selected conventional system is programmed for monitoring only (see “Receive-Only Groups”... -
Page 53: System Operator Programming
MISCELLANEOUS SCN TYPE - Selects type of scanning • SYS-GRP - Both system and group • GRP ONLY - Group scanning only • OFF - All scanning disabled S/G DISPL - System/group display mode • ALPHATAG • NUMERIC STEALTH - Stealth mode select •... -
Page 54: Operation At Extended Range
MISCELLANEOUS Operation At Extended Range When approaching the limits of radio range, the other party may not be able to hear your transmissions and there may be an increase in back- ground noise when messages are received. You may still be out of range even though you can hear a message. -
Page 55: Transceiver Service
MISCELLANEOUS Transceiver Service If your transceiver is not operating properly, “OUT-LOCK” or “PROG ERR” may be displayed. To attempt to clear this condition, turn power off and then on again to reset the control logic. Another indication that could be displayed is “NO POWER”. This indicates that transmitter temperature or supply voltage may be excessive. - Page 56 Part Number 002-9803-201 11-99hph Printed in U.S.A...
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