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SYSTEM SCAN

Introduction

The system scan feature monitors the programmed systems of the current bank. When a message is detected that 

the transceiver is programmed to receive, scanning stops and the message is received. Shortly after the message is 
complete, scanning resumes.

System scanning is turned on and off by the SCAN option switch (see page 3). When system scanning is enabled, a 

triangle (

 ∆

 ) is indicated in the display below the switch. The microphone must also be on-hook for scanning to occur 

(unless off- hook detection has been disabled).

When system scanning is actually occurring, “SNGLE SCAN” or “MULTI SCAN” is indicated in the alphanu-

meric display (see “Multi-Site and Single-Site Scan” description on page 11). In addition, rotating symbols are present 
in both status displays between the system and group numbers.

Scanning is sequential through the programmed systems unless they have been deleted from the scan list (see 

“Scan List Programming” which follows) or single-site scan is used. The selected system and group can be changed 
while scanning using the Select switch in the normal manner. Scanning temporarily halts while the change is being 
made.

When a call is received in the scan mode, the display indicates the system/group of the call. However, this may not 

be where transmissions occur (see “Transmitting in the Scan Mode” on page 11).

Scan Resume Delay

After a message is received or transmitted while scanning, there is a delay before scanning resumes. This delay is 

programmable by your system operator for 0-7 seconds. The delay after a message is received prevents another message 
from being received before a response can be made. The delay after a message is transmitted ensures that you hear a 
response to your message instead of some other message occurring on another system/group.

There is also a scan continue timer that can be programmed by your system operator. If this timer is used, it sets the 

maximum time that a message is received before scanning resumes. This can prevent scanning from being interrupted 
for long periods by lengthy messages.

Scan List Programming

Systems and groups can be added to or deleted from the scan list if the transceiver is equipped with an A/D (add/

delete) option switch. The bar above the system or group indicates which changes when this switch is pressed. To move 
this bar between the system and group displays, press the Select switch.

The scan list status of a system or group is indicated by an asterisk ( * ) in the status display. An “*” next to the 

system number indicates that the displayed system is in the scan list and scanned normally. Likewise, an “*” next to the 
group number indicates that the displayed group is in the scan list. When scanning is occurring, the scan list status is not 
indicated because the rotating scanning indicators are displayed.

The displayed system or group can be deleted from the scan list while listening to a message on that system or 

group. Scanning resumes shortly after the system or group is deleted. If the last system or group is deleted from the scan 
list, the last selected group is still scanned.

Содержание 002-9750-003

Страница 1: ...s or modifications to this equipment not expressly approved by the E F Johnson Company could void the user s authority to operate this equipment FCC rules 47CFR Part 15 19 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 P O Box 1249 Waseca MN 56093 0514 Phone 507 835 6222 ...

Страница 2: ...lear to talk tone Emergency switch Telephone mode for convenient telephone calls MULTI NET FEATURES Busy queuing Auto registration Up to eight different status messages can be sent automatically Specific mobiles can be called unique ID calls Transmit inhibit LTR FEATURES System search Free system ringback Transmit inhibit CONVENTIONAL FEATURES Busy indicator Call Guard squelch control Transmit dis...

Страница 3: ...ise or counterclockwise Only systems and groups in the current bank can be changed see page 12 A tone sounds each time the system or group changes unless tones have been disabled The transceiver can be programmed so that the bar defaults to either the system or group digit when power is turned on or after a digit is changed In addition the time that must elapse before it returns after a digit chan...

Страница 4: ...UCK could be displayed when a certain group is selected It also displays various error and status messages Status Display These two characters indicate the following status information Rotating clock like symbols in both positions indicate that scanning is occurring This symbol in the left position indicates that the displayed system is in the scan list Likewise this symbol in the right position i...

Страница 5: ... next section is that no number is dialed when it is placed Placing a Standard Mobile To Mobile Call 1 Turn power on and set the volume level if required 2 If necessary select the desired system group using the front panel Select switch see page x The selected system group is displayed even when scanning 3 If a conventional system is selected the channel must be monitored before transmitting as de...

Страница 6: ...ork and special calls allow you to call specific mobiles in your site or some other site After the system is accessed a number must be dialed using the microphone keypad or recalled from memory using the Phone Mode see page 15 The following information describes how LTR Multi Net telephone calls and Multi Net special calls are placed and received If you can make telephone calls on conventional sys...

Страница 7: ... it is a special call a second short tone sounds to indicate that speaking should begin No ringing of the other party occurs 6 The PTT switch must be pressed to talk and released to listen You cannot talk and listen at the same time because no messages are received while the PTT switch is pressed 7 When the conversation is finished terminate the call by pressing the key Place the microphone back o...

Страница 8: ...e scanning resumes This delay is programmable by your system operator for 0 7 seconds The delay after a message is received prevents another message from being received before a response can be made The delay after a message is transmitted ensures that you hear a response to your message instead of some other message occurring on another system group There is also a scan continue timer that can be...

Страница 9: ...selected system group as long as you do so before scanning resumes With the preceding modes there is also a programmable bank option see page 32 to have transmissions occur on a preprogrammed fixed system group if the transmitter is keyed while scanning is occurring As described on page 23 scanning is occurring when MULTI SCAN or SNGLE SCAN and the rotating indicators are displayed Since taking th...

Страница 10: ...nning as long as the monitor mode is not enabled see description on page 11 If the monitor mode is enabled all calls occurring on a system channel are received Priority groups can also be sampled when scanning conventional systems This feature ensures that important calls on a priority group are not missed while listening to a call on a non priority group Refer to Priority Group Sampling on page 1...

Страница 11: ...icable If equipped with the CG option switch both transmit and receive Call Guard squelch or other squelch control features can be disabled on the selected group only The disable mode is indicated by a triangle in the display under the switch The transceiver can also be programmed so that a microphone off hook condition is not detected The Transmit Disable On Busy feature or MON CG switches must t...

Страница 12: ...43 It is programmed to operate in one of the modes described below Ignition switch control of power is described in Power Turn Off Delay which follows Manual Off On Mode The mode does not change when power is turned on and off by either the ignition switch or pow er switch Therefore it is entirely controlled by either the option switch or menu parameter Auto Off and On Mode It always turns off whe...

Страница 13: ...smits an emergency message on the emergency system group This message is transmitted at the highest priority until an acknowledgment is received from the dispatcher If you have the emergency switch feature your system operator will provide additional information on how to use it Power Turn Off Delay The transceiver can be programmed so that the vehicle ignition switch as well as the front panel po...

Страница 14: ... for another site While it is searching AUTO REG and the scan message are alternately displayed When a new site is located AUTO REG is no longer displayed and the display changes to the system of the new site The new system that is selected is the first higher system with a different site that could be accessed wrap around occurs after the highest system is accessed The group that is displayed is ...

Страница 15: ... 1 Press the PHONE switch or select the TELEPHONE menu parameter This displays the first telephone system group in the current bank If none are programmed NO RIC is displayed The status display indicates PH until a system group is selected 2 To scroll through the available telephone system groups turn the Select switch Telephone system groups are indicated by the handset symbol in the display When...

Страница 16: ...ss is attempted and each eligible system is checked once If no system can be accessed an intercept tone sounds and the feature deactivates If a system is accessed that system and the telephone group are displayed and a dial tone sounds The number can then be dialed If dialing is not started within a few seconds normal operation resumes Other LTR Features Priority and Block ID Codes the Transmit In...

Страница 17: ... to talk to anyone even though the mobile you are calling may be only a short distance away In this situation the Repeater Talk Around feature if available can be used to allow direct communication with the mobile without having to go through a repeater To select this feature simply select a group programmed for talk around by your system operator The unique identification may be used to indicate ...

Страница 18: ...may be controlled by an option switch or they may not apply so have been removed from the menu by system operator programming To change an operating parameter using the Menu mode proceed as follows 1 To select the Menu mode press the MENU switch 2 To select the desired parameter turn the front panel Select switch until it is displayed 3 If the parameter has only on off choices the current status i...

Страница 19: ... and AUX 2 option switches can be used With a switch the on condition is indi cated by a triangle in the display under the switch Backlight The Menu mode Backlight parameter or the BKLHT option switch can be used to turn the display backlight on and off This light allows the display and option keys to be seen in low light conditions If it cannot be controlled using either of these methods it is us...

Страница 20: ...splayed group when the circle triangle symbol is displayed see page 4 Selecting another system group causes this feature to revert to the state programmed by your system operator for that group Encrypted calls are usually received even if encryption is not enabled on a group However encryption must always be enabled to transmit an encrypted call External PA Mic Audio To PA If your vehicle is equip...

Страница 21: ...or the PRIORITY Menu mode parameter can be used to enable or disable that feature Refer to Priority Group Sampling on page 17 for more information Radio Sounds The RADIO SNDS menu parameter selects the tones that are heard when switches are pressed or busy or out of range conditions exist If this menu parameter is not available the tones which sound are fixed by system operator programming The fou...

Страница 22: ...ameter is used to manually turn talk around on and off on conventional systems Refer to Repeater Talk Around on page 17 for more information Viewing Angle Adjust The VIEW ADJST menu parameter sets the viewing angle of the display This provides optimal intensity at the viewing angle being used Viewing angles represented by 0 15 can be selected 0 selects 45 and 15 selects 45 Note that when toggling ...

Страница 23: ...is a short tone that sounds when the number just dialed is accepted by the system Call Proceed Tone With Multi Net special calls other than telephone calls ringing does not occur after the number is dialed Instead another short tone sounds after the confirmation tone to indicate that the audio path is complete and speaking can begin End Call Tone Three beeps which indicate that the end of the call...

Страница 24: ...s to a point where transceiver damage may result this message is displayed and the intercept tone sounds If this message persists contact your dealer or have the vehicle s electrical system checked IN QUEUE Indicates that the call has been placed in a queue by the Multi Net Busy Queuing feature see page 13 MIC TO PA Indicates that the microphone audio has been routed to a public address system see...

Страница 25: ...ered refer to page 16 SYSTEM BSY This along with a busy tone indicates that the radio system is currently busy see Busy Tone de scription on page 22 TX DISABLE Indicates that the selected conventional system is programmed for monitoring only see page 18 TX DIS BSY Indicates that the transmitter is disabled by the Transmit Disable On Busy feature see page 16 This message also indicates that the tra...

Страница 26: ...ansmitting it is good practice to have the vehicle running while transmitting This ensures that there is sufficient power to the transceiver and that the charge of the battery is maintained Transceiver Servicing If the transceiver is not operating properly turn the power off and then on again to reset the control logic Also make sure that the front panel controls are properly set and that the ante...

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