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  2. E.F. Johnson Company
  3. Two-Way Radio
  4. LTR 98xx
  5. Operating Manual

E.F. Johnson Company LTR 98xx Operating Manual

Summary of LTR 98xx

  • Page 1

    Ltr® 98xx series high tier operating manual part no. 002-9803-201 november 1999.

  • Page 3

    Land mobile product warranty - the manufacturer’s warranty statement for this product is available from your product supplier or from the e.F. Johnson company, 299 johnson avenue, box 1249, waseca, mn 56093-0514. Phone (507) 835-6222. Copyright© 1999 by the e.F. Johnson company the e.F. Johnson comp...

  • Page 4: Safety Information

    Safety information 4 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. Warn...

  • Page 5: Fcc Exposure Limits

    Safety information 5 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 evalu...

  • Page 6

    Safety information 6 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 ...

  • Page 7: Table Of Contents

    Table of contents 7 table of contents safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 quick reference guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 8

    Table of contents 8 tone select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 transmitter thermal foldback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 option switches and menu mode . . . . . . . . . . . . . . . . . . . 30 option switches ...

  • Page 9: Quick Reference Guide

    Quick reference guide 9 quick reference guide power on/off - press on-off/volume control. Set volume level - rotate on-off/volume control. Change system or group - press select switch to enable system or group select mode (indicated by ←/→ or __). Then rotate select switch to select desired system o...

  • Page 10: Features

    Features 10 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 • menu mode to control vario...

  • Page 11: Controls And Display

    Controls and display 11 controls and display 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” on page 27. Rotating this knob sets the speaker volume (see page 15). Select switch -...

  • Page 12

    Controls and display 12 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 ...

  • Page 13

    Controls and display 13 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. Rear panel jacks and connectors antenna jack - miniature uhf jack for connecting t...

  • Page 14

    Controls and display 14 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). - indicates that the displayed...

  • Page 15: General Operation

    General operation 15 - 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 mess...

  • Page 16

    General operation 16 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 pr...

  • Page 17

    General operation 17 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 precedin...

  • Page 18

    General operation 18 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. If conventional systems are...

  • Page 19: Standard Calls

    Standard calls 19 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 nu...

  • Page 20

    Standard calls 20 • 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 shiel...

  • Page 21: Telephone Calls

    Telephone calls 21 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. The t...

  • Page 22

    Telephone calls 22 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 th...

  • Page 23: General Features

    General features 23 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 fol...

  • Page 24

    General features 24 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...

  • Page 25

    General features 25 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. If you have the encrypt menu parameter or encpt option switch, the encryption group programming can be tempor...

  • Page 26

    General features 26 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. Th...

  • Page 27

    General features 27 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. Auto off/on mode ignition switch - the horn a...

  • Page 28

    General features 28 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 tr...

  • Page 29

    General features 29 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 ind...

  • Page 30: Option Switches and Menu

    Option switches and menu mode 30 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. Silent - all to...

  • Page 31

    Option switches and menu mode 31 menu mode and option switch functions function menu items option switch see descrip. On page add/delete (scan list prg) --- a/d 35 backlight adjust backlght --- 16 bank select bank sel --- 23 call guard sq. Disable --- cg 46 emergency --- emer 24 encryption on-off en...

  • Page 32

    Option switches and menu mode 32 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” column of the table o...

  • Page 33: System And Group Scan

    System and group scan 33 • 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. System and group scan introd...

  • Page 34

    System and group scan 34 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. The available scan types are as follows. Sys-grp - both system and group grp only - group scannin...

  • Page 35

    System and group scan 35 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 ...

  • Page 36

    System and group scan 36 “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. If the menu scn save parameter is not selectable,...

  • Page 37

    System and group scan 37 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...

  • Page 38: Ltr And Conventional Modes

    Ltr and conventional modes 38 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...

  • Page 39

    Ltr and conventional modes 39 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. In the ltr mode, the squelch level is fi...

  • Page 40: Ltr Features

    Ltr features 40 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. Ltr features standard and telephone calls standard calls are between two mobiles or between a mobile...

  • Page 41

    Ltr features 41 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. If no match is found, ...

  • Page 42

    Ltr features 42 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 progr...

  • Page 43

    Ltr features 43 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. The transceiver then attempts to a...

  • Page 44: Conventional Features

    Conventional features 44 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 g...

  • Page 45

    Conventional features 45 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 mo...

  • Page 46

    Conventional features 46 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. Call guard squelch the call guard squelch fea...

  • Page 47: Miscellaneous

    Miscellaneous 47 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 th...

  • Page 48

    Miscellaneous 48 • 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 m...

  • Page 49

    Miscellaneous 49 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 occurr...

  • Page 50

    Miscellaneous 50 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 i...

  • Page 51

    Miscellaneous 51 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 c...

  • Page 52

    Miscellaneous 52 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...

  • Page 53

    Miscellaneous 53 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 • on or off sys srch - ltr system search • on or off talkarnd...

  • Page 54

    Miscellaneous 54 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. The rea...

  • Page 55

    Miscellaneous 55 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 tha...

  • Page 56

    Part number 002-9803-201 11-99hph printed in u.S.A.