E.F. Johnson Company 7243 LTR-NET Owner'S Manual Download Page 15

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CONTROLS AND DISPLAY

SYS (RCL)

Standard Mode

SYS

Selects the next higher system.

SYS

Selects the next lower system.

SYS (xx) -

Directly selects specified system.

FCN RCL -

Momentarily displays the revert (selected) system if it

is not already being displayed.

Dial Mode

RCL -

Scrolls through the numbers programmed in memory.

FCN RCL (0-9) -

Recalls the number stored in the specified

memory location.

FCN RCL

Recalls the last number dialed from memory.

FCN RCL

Recalls the last number dialed.

GRP (CLR)

Standard Mode

The GRP key functions the same as “SYS” just described to change

or display the selected group.

Dial Mode

CLR -

Erases the last digit in the display.

FCN CLR -

Erases the entire number in the display.

1 (HOME)

Standard Mode

FCN HOME -

Selects the preprogrammed home system/group.

1 -

Pressing this key with the PTT switch pressed transmits the “1”

digit.

Dial Mode

1 -

Dials the “1” digit.

2 (PHONE)

Standard Mode

FCN PHONE -

Selects the dial mode and a telephone group in the

current system.

2 -

Pressing this key with the PTT switch pressed transmits the “2”

digit.

Summary of Contents for 7243 LTR-NET

Page 1: ...OPERATING MANUAL 7243 LTR NET PORTABLE UHF TRUNKED PORTABLE RADIO ...

Page 2: ...23 provides wireless communication systems solutions for public safety govern ment and commercial customers The company designs manufac tures and markets conventional and trunked radio systems mobile and portable subscriber radios repeaters and Project 25 digital radio products Viking Head EFJohnson logo LTR LTR Net and Call Guard are trademarks of the E F Johnson Company All other company and or ...

Page 3: ...lletin 65 Edition 97 01 Supplement C Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields American National Standards Institute C95 1 1992 IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields 3 kHz to 300 GHz American National Standards Institute C95 3 1992 IEEE Recom mended Practice for the Measu...

Page 4: ...s not intended for use in applications where transmissions are required while the unit is body worn with the use of the belt clip NOTE The preceding information is provided to make you aware of RF expo sure and what to do to ensure that this radio is operated within FCC RF exposure limits Electromagnetic Interference Usage Compatibility This device complies with Part 15 of the FCC rules Operation ...

Page 5: ...equence 20 Backlight Operation 20 Setting Volume Levels 20 System Group Display Mode 20 System and Group Select 21 Keypad Disable 22 Transceiver Lock 22 Low Battery Indication 23 Option Switches 23 LTR Net LTR and Conventional Operation 23 GENERAL FEATURES 25 Bank Select 25 Call Indicator 25 Home System Group Select 26 Proceed Clear To Talk Tone 26 Receive Only Groups 26 Time Out Timer 27 Tone Sel...

Page 6: ...lecting Dial Mode 37 Dialing a Number 38 Sending the Number 38 Storing Numbers in Memory 38 Recalling Numbers From Memory 39 Exiting Dial Mode 39 Placing Calls Without Selecting Dial Mode 39 SYSTEM AND GROUP SCANNING 40 General 40 Scan List Programming 42 Scan Delay and Continue Timers 43 Transmitting In The Scan Mode 43 LTR NET AND LTR FEATURES 45 Transmit Inhibit 45 Priority Calls 45 LTR NET FEA...

Page 7: ...Around 51 Call Guard Squelch 51 MISCELLANEOUS 52 Supervisory Tones 52 LTR Net Special Call Tones 53 LTR Telephone Call Tones 54 Display Messages 54 Menu Mode Messages 56 Rechargeable Battery Pack 57 Battery Charger Operation 59 Speaking Into Microphone 60 Operation At Extended Range 60 Licensing 61 Transceiver Service 61 INDEX 61 ...

Page 8: ...t changing system group FCN DIAL pg 37 Select dial mode and telephone system group FCN PHONE pg 37 Transmit number in display Briefly press PTT sw then FCN SND pg 38 Erase last number in display CLR pg 38 Erase entire number in display RCL CLR pg 38 Display overflow digits FCN pg 38 Enter a pause FCN pg 38 Store a number in memory Enter no then FCN STR 0 9 pg 38 Display numbers in memory RCL hold ...

Page 9: ...res Roaming automatic locality search Standard group mobile to mobile calls Special calls including telephone unique ID and directed group Busy queuing of special calls by radio system Transmit inhibit Receive priority calls LTR Features Standard group and telephone calls Transmit inhibit Receive priority calls Conventional Features Busy indicator Talk around User adjustable squelch level Monitor ...

Page 10: ...lockwise turns power on and sets the volume level Turning it counterclockwise to the detent turns power off Power is on when information appears in the display For more information on setting the volume refer to page 20 Antenna Jack On Off Volume Microphone Speaker Option Switch Accessory Connector ...

Page 11: ...ed on the bottom end of the transceiver and it is pressed to release the battery so that it can slide downward and be removed from the radio Side Controls Option Switch 2 This switch can be system operator programmed to control a specific function see page 35 PTT Push To Talk Keys the transmitter so that a message can be transmitted The Tx icon in the display indicates when the transmitter is keye...

Page 12: ...p is programmed for telephone calls The top portion receiver is displayed when the dial mode is selected see page 37 L Indicates that the low power mode is selected by the menu mode or a low battery condition see page 26 Indicates that the scan mode is selected see page 40 C Indicates that a call has been received on a group programmed for a call indicator see page 25 Press any key to turn this in...

Page 13: ...n list and scanned normally see page 42 BUSY Indicates that the selected conventional channel is currently busy with voice or other traffic Indicates a low battery condition The battery should be recharged or replaced as soon as practical see page 23 UID Indicates that the displayed group is programmed for an LTR Net Unique ID or Directed Group call see page 46 Indicates that the keypad has been d...

Page 14: ...ers in the dial mode see page 37 Also all key functions except 0 9 can be assigned to an option switch and controlled by either see page 35 Holding the key down causes repeating when applicable The front panel keys operate as follows FCN SCAN Standard Mode FCN Enables the alternate function of the next key that is pressed This alternate function is active for 2 seconds or until another key is pres...

Page 15: ...r dialed from memory FCN RCL Recalls the last number dialed GRP CLR Standard Mode The GRP key functions the same as SYS just described to change or display the selected group Dial Mode CLR Erases the last digit in the display FCN CLR Erases the entire number in the display 1 HOME Standard Mode FCN HOME Selects the preprogrammed home system group 1 Pressing this key with the PTT switch pressed tran...

Page 16: ...e dial mode without sending the call termination code 4 PAGE Standard Mode FCN PAGE The page function is currently not available 4 Pressing this key with the PTT switch pressed transmits the 4 digit Dial Mode 4 Dials the 4 digit 5 MENU Standard Mode FCN MENU Selects the menu mode 5 Pressing this key with the PTT switch pressed transmits the 5 digit Dial Mode 5 Dials the 5 digit 6 SQL Standard Mode...

Page 17: ... switch pressed transmits the 8 digit Dial Mode 8 Dials the 8 digit FCN SEND Automatically accesses the radio system and trans mits the number in the display 9 G A D Standard Mode FCN G A D Group Add Delete Changes the scan list status of the currently displayed group The group is in the scan list and scanned normally if is displayed when not scanning 9 Pressing this key with the PTT switch presse...

Page 18: ...P key description Dial Mode Dials the digit FCN Enters a pause when dialing a telephone number FCN RCL Recalls the last number dialed from memory Standard Mode FCN Enables and disables the keypad lock feature Pressing this key with the PTT switch pressed transmits the digit SYS Selects the next higher system see preceding SYS key description GRP Selects the next higher group see preceding GRP key ...

Page 19: ...acklight entirely Setting Volume Levels The relative volume level can be determined by noting the position of the index on the volume knob You may also be able to enable a tone or background noise for use in setting the volume as follows If key press tones are enabled a short tone sounds whenever any key is pressed If a conventional system is selected and the monitor option switch is programmed se...

Page 20: ...layed For example the CAR 220 system is displayed as follows There is no special group scan indication when only group scanning is occurring Alpha Tag Display Mode System and Group Select Systems and groups are selected by the keypad SYS and GRP keys and one or more other keys as follows To increase the selected system press SYS and then Likewise to increase the selected group press GRP Holding th...

Page 21: ...ture selected Turning the power off and then on again does not unlock the keypad Transceiver Lock The transceiver can be locked to prevent unauthorized usage To lock the transceiver press FCN and PASSWORD is then displayed to indicate that a four digit unlock password must be entered This pass word can be any four digit number except 0000 The password must be re entered to confirm it and the trans...

Page 22: ...by turning power off and then on again Option Switches This transceiver has three option switches that can be programmed by your system operator to control the monitor function and most func tions that are selectable by the front panel keys see table on page 34 The option switches are the push button switch on the top panel and the switch immediately above and the switch immediately below the PTT ...

Page 23: ...lls may be made to mobiles in other sites as well as the current site LTR Net and LTR features are described starting on page 45 Conventional Operation In the conventional mode selecting a system selects a conventional channel and selecting a group selects the special Call Guard squelch coding if used and other unique parameters on that channel such as call indicator operation The Call Guard codin...

Page 24: ...nformation If this menu parameter is not available banks are not selectable Call Indicator The call indicator is C in the upper part of the display see following illustration The purpose of this indication is to show that a call was received while you were away from the radio Individual groups can be programmed for this feature and it then turns on when a call is received on one of those groups Th...

Page 25: ...mming It can also be programmed to sound with conventional calls and or LTR Net and LTR auxiliary and telephone calls first access only On LTR Net and LTR systems if the radio system is busy when making a call the busy tone sounds instead of the proceed tone and BUSY is indicated in the display If an access attempt is unsuccessful such as because of an out of range condition the intercept tone sou...

Page 26: ...by transmitting for an excessively long period 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 35 for more informa tion on using the menu mode Silent All tones are disabled Keys Only the key press tones are enabled Alerts All tones except the precedin...

Page 27: ...ly as described on page 49 4 Press and hold the microphone PTT push to talk switch to talk and release it to listen Operation with LTR Net LTR and conventional calls is as follows LTR Net and LTR Operation If tones are enabled the proceed tone sounds shortly after the PTT switch is pressed if the radio system was successfully accessed see page 26 If tones are not enabled no tone sounds when the sy...

Page 28: ...ter is disabled Any channel activity is heard while the PTT switch is pressed Otherwise busy and out of range conditions are not indicated and speaking can begin when the PTT switch is pressed if the channel is not busy If the proceed tone is enabled on conventional systems it indicates when speaking can begin but does not indicate that the channel is free or has been successfully accessed Receivi...

Page 29: ...as described starting on page 20 2 Select the dial mode and a telephone group as follows When the dial mode is selected the handset portion of the telephone icon is displayed and then when a telephone group is selected the base portion is displayed To select the dial mode and a preprogrammed telephone group press FCN PHONE To select the dial mode without changing the selected group press FCN DIAL ...

Page 30: ...er the or characters To automatically send these characters and exit the dial mode press FCN PHONE To exit the dial mode without sending these characters press FCN DIAL Termination is indicated by three beeps Terminating the call in this manner prevents extra billing that may occur while the system automatically detects the end of the call Receiving a Telephone Call 1 Select or scan the system and...

Page 31: ...laced to specific mobiles and Directed Group calls are placed to specific talk groups These calls can be made to other mobiles in your site or some other site that is part of your radio network As with telephone calls a special number must be dialed to place these calls The number dialed is 1 10 digits long and is provided by your system operator Other requirements to place these calls are they mu...

Page 32: ...queue as described in Busy Queuing on page 46 Unique ID Call Ringing is heard to indicate that the other transceiver is being rung If there is no answer ringing automatically stops after several rings and the call is terminated When the other party answers respond as with a standard call Directed Group Call A second tone sounds to indicate that the path is complete and speaking should begin No rin...

Page 33: ...or for more information on how to place these calls OPTION SWITCHES AND MENU MODE Menu Mode and Option Switch Functions Function Menu Items Option Switch See Descrip on Page Backlight mode select BACKLGHT 20 Bank select BANK SEL 25 Monitor mode select X 50 Roaming on off 2 ROAMING 47 Scan type select SCN TYPE 40 Scan continue on off SCN CONT 43 Scan list save mode SCN SAVE 42 Tone type select TONE...

Page 34: ...ion The menu mode is selected by pressing FCN MENU Functions which can be controlled by the menu mode are indicated by an entry in the Menu Items column of the preceding table More information on each function can be found on the page indicated in this table Parameters are not displayed in the menu mode if they are not used in a fixed state or controlled by only an option switch Calls cannot be re...

Page 35: ...eter without changing the selected option press STR 3 When the desired condition of each menu parameter is selected exit the menu mode by pressing FCN MENU again The menu mode is also automatically exited 2 seconds after a change is made or 8 seconds after no changes are made Menu Mode Flowchart Enter Exit Menu Mode Press FCN MENU BANK SEL Other Menu Parameters MENU PARAMETERS PARAMETER OPTIONS ST...

Page 36: ...lecting Dial Mode and Telephone Group To select the dial mode and a telephone group in the current system press FCN PHONE If there is more than one group programmed for telephone calls in the current system the first high numbered telephone group is selected If there is no telephone group or a conventional system is selected NO PHONE is displayed and an error tone sounds Selecting Dial Mode Withou...

Page 37: ... while in a conversation to allow additional numbers to be dialed Simply press the PTT switch and dial the number The number in the display does not change when a number is dialed in this manner If you want to save the number in the display see following information make sure you do so before the dial mode is exited Storing Numbers in Memory Up to ten 16 digit numbers can be stored in memory and l...

Page 38: ...the call termination characters press FCN DIAL Sending Call Termination Characters To exit the dial mode and send the characters which automatically terminate the call press FCN PHONE Terminating a call in this manner prevents any additional billing for the time required to automatically detect the end of a call Placing Calls Without Selecting Dial Mode Telephone and Auxiliary calls can also be pl...

Page 39: ...rently selected system Group Scanning Detects calls on all groups in the group scan list These groups are from the selected system and also from scanned systems if system scanning If group scanning is not used calls are detected on only the selected group In addition calls may be detected on higher priority LTR Net and LTR groups see Priority Calls on page 45 Scan On Off System and or group scanni...

Page 40: ...d GRP keys in the normal manner Scanning resumes shortly after the change is made When a call is received in the scan mode the display changes to the system and group of the call Programming determines if this change is temporary or permanent and if a response occurs on the system group of the call or the selected system group Refer to Transmitting In The Scan Mode on page 43 for more information ...

Page 41: ...R and conventional systems in the scan list LTR Net systems are not scanned If roaming is enabled only LTR Net systems or all three system types may be scanned as described in the preceding LTR Net description Scan List Programming General NOTE The selected displayed system and group are always scanned even if they have been deleted from the scan list NOTE Deleting LTR Net systems from the scan li...

Page 42: ...ge is received or transmitted while scanning there is a short delay before scanning resumes The delay after receiving a call prevents another message from being received before a response can be made Likewise the delay after transmitting a call ensures that you hear a response to your call instead of another message occurring on some other system or group Note that scanning does not resume if it h...

Page 43: ...ly using the SYS and GRP keys Before scanning resumes exit the scan mode by pressing FCN SCAN The system group of the call then becomes the selected system group and it is not necessary to change it manually Last Received The selected system group changes to the system group of a call Therefore you can always respond to a call without having to manually change the system group To return to the pre...

Page 44: ...is available on conventional systems see page 50 Priority Calls Each LTR Net and LTR group is programmed with a receive priority number If a call is detected on a group in the group scan list that has a higher priority than the selected group it is received even if scanning is not enabled If another call is in progress when the higher priority call is detected the current call is immediately dropp...

Page 45: ...the preceding illustration these calls include Unique ID and Directed Group calls Unique ID calls are to specific mobiles and Directed Group calls are to specific talk groups Refer to page 32 for information on placing and receiving Auxiliary calls Busy Queuing If system resources are not available when placing special calls queuing may be provided by the radio system Standard group calls are not ...

Page 46: ...nabled any system can be selected if the LTR Net systems are in the system scan list see page 42 When roaming is enabled as just described and the signal from the current locality becomes weak the transceiver automatically begins searching for another locality While searching is occurring LCL SRCH is displayed as shown below Then when a new locality is located registration occurs and LCL SRCH is n...

Page 47: ...ver LTR and LTR Net telephone calls are described starting on page 30 CONVENTIONAL FEATURES Squelch Adjust This function sets the squelch level used for conventional calls Since the squelch level for LTR Net and LTR calls is preset and cannot be changed this adjustment needs to be made only if you make conventional calls refer to page 23 for more information on operating modes Proceed as follows 1...

Page 48: ... that conventional channels groups be moni tored before transmitting to make sure that they are not being used by someone else If you were to transmit when someone else is talking you would probably disrupt their conversation Proceed as follows to auto matically or manually monitor conventional channels In the LTR Net and LTR modes monitoring is always performed automatically Automatic Channel Mon...

Page 49: ... A conventional system must be selected to enable monitoring If the Monitor option switch is pressed with an LTR Net or LTR system selected scanning halts but monitoring is not enabled If the monitor option switch is not programmed the monitor mode is not selectable and monitoring is performed automatically as follows Transmit Disable On Busy The Transmit Disable On Busy feature automatically disa...

Page 50: ...f you are out of radio range of the repeater you cannot talk to anyone even if the mobile you are calling is only a short distance away To allow communication if this occurs talk around groups can be programmed which enable direct mobile to mobile communication without going through a repeater Talk around is then automatically enabled by selecting one of these groups There is no special talk aroun...

Page 51: ...tercept Tone This is a siren like tone alternating high and low tones which indicates the following no access and error conditions No Access If this tone sounds shortly after pressing the PTT switch and NO ACESS is displayed the radio system could not be accessed perhaps because of an out of range condition see Opera tion At Extended Range on page 60 Once this tone sounds no more access attempts a...

Page 52: ...st channel was displayed and that wrap around has occurred Error Tone This is a two pitch tone that indicates that an error condition has occurred LTR Net Special Call Tones The following tones are generated by the LTR Net equipment and are heard when making a telephone unique ID or directed group special call on an LTR Net system Confirmation Tone This is a short tone that sounds when the number ...

Page 53: ...ters used by the system to detect the end of a call when the character is not sent Conversation Time Out Tone Calls are limited to a certain length by the system Thirty seconds before this time is reached a tick begins sounding each second When the 30 second time expires the call is auto matically terminated by the system Turn Around Tone This is a single beep which may be used to indicate to the ...

Page 54: ... number are indicated very briefly in the display when transceiver power is turned on This number indicates such things as frequency band power output and tier of the transceiver The eighth digit is reserved and always 0 NO ACESS Indicates that the radio system could not be accessed perhaps because of an out of range condition Refer to Operation At Extended Range on page 60 for more information NO...

Page 55: ...de is selected see page 48 TIMEOUT Indicates that the transmitter has been disabled by the Time Out Timer see page 27 TX DISBL Indicates that the transmitter has been disabled because the selected group is receive only see page 26 TX INHIB Indicates that the transmitter has been disabled by the Transmit Inhibit feature see page 45 Menu Mode Messages The following messages are displayed in the menu...

Page 56: ... preceding Key Beeps sound ALL All the preceding tones sound Rechargeable Battery Pack WARNING Do not dispose of the battery pack in fire because it may explode The battery pack contains nickel metal hydride NiMH cells which must be disposed of in accordance with local regulations Do not short the termi nals because the battery may become very hot Battery Life With proper care the nickel metal hyd...

Page 57: ...de the battery off A new battery pack must be charged before use Battery Care One cause of shortened battery life is repeated deep discharge Therefore it is recommended that the battery be recharged as soon as practical after the low battery indication appears see preceding informa tion Do not continue using the transceiver until the battery is completely discharged Another cause of reduced batter...

Page 58: ... nearly fully charged the charger switches to a trickle rate 20 40 mA and the indicator turns green It continues at this rate until the battery is removed from the charger The temperature must be 0 to 45 C 32 to 113 F for rapid charging to occur Approximate charge time in this slot for a fully discharged battery is 1 5 hours NOTE Occasionally a fully charged condition may be falsely detected and t...

Page 59: ...arty may not be able to hear your transmissions and there may be an increase in back ground noise when messages are received Even though you can hear messages you may still be out of radio range The reason for this is that the signal being received is normally transmitted by a repeater which usually has a much higher power level than is produced by your transmitter Communication may be improved by...

Page 60: ...service The SLEEPING message indicates the transceiver is temporarily disabled as described on page 56 If the CALL SVC message is displayed the transceiver must be returned to your system operator for service NOTE There are no user serviceable components in the transceiver Altering internal adjustments can cause illegal emissions void the warranty and result in improper operation that can seriousl...

Page 61: ...ome System Group Select 26 I Indicator Auxiliary Call Group 14 Busy 14 49 Call 13 25 Directed Group Call 14 Group Scan List 14 Keypad Lock 14 Low Battery 14 Low Power 13 Monitor Mode 14 Priority 14 Scan 13 System Scan List 13 Telephone Group 13 Transmit 14 Unique ID Call Group 14 Intercept Tone 52 L Landside Originate Telephone Call 32 Licensing 61 Low Battery 23 LTR Mode 23 LTR Mode Scanning 42 L...

Page 62: ...mming 42 Saving 43 Scan Mode 40 Transmitting 43 Scan Types 41 Selecting System Group 21 SEND Key 18 Sending a Number 38 Service 61 Slow Charge 59 Speaking Into Microphone 60 Special Calls 46 SQL Key 17 Squelch Adjust 48 Standard Group Call 46 48 Placing 27 Receiving 29 Storing a Number 38 STR Key 18 Supervisory Tones 52 SYS Key 16 System and Group Select 21 System Scanning 40 T Talk Around 51 Tele...

Page 63: ...Part Number 002 7200 600 9 01 hph Printed in U S A 002 7200 600 ...

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