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Menu Introduction 

 

• Press 

MENU

 Key to enter menu               

• Press“▲”or“▼” Key to select items                           
• Press 

BACK 

Key to back to the previous menu 

• Press 

MENU 

Key

 

to confirm selecting 

 

 

Menu   

Sub-menu 

Function Instruction 

 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 

Menu 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Choose Group 

 

Choose a group, then you can 

transmit and receive message within 

the group. 

Friend List 

 

Enter to make private call with the 

friend(s) that added on platform   

User List 

 

Enter to make private call with the 

group member(s)   

Dispatcher MSG 

 

Enter to check dispatcher messages 

PTT Records 

 

Enter to check the voice records 

Contacts   

 

Add the phone call contacts list by 
programming. Into contacts list to 
choose a phone number to make 
phone call directly. 

Call Records   

 

Enter to check the telephone calling 
record, if the radio with telephone 

function. 

Audio Settings 

Sound Quality 

Standard / High Quality 

 

 

MIC Level 

-2/-1/st1/+2 

Roger Beep 

ON:

 A beep when transmitting. 

OFF:

No voice when

 t

ransmitting. 

Advanced Setting 

Network Mode 

Switch 2G/3G/4G/AUTO 

Dual SIM 

SIM 1 / SIM 2 (choose SIM card) 

PWR ON Mode 

ACC / KEY    (PWR as Power) 

PWR OFF Mode 

ACC / KEY    (PWR as Power) 

Rotate 

Normal / Inverse 

SOS Mode 

OFF: 

Close SOS function. 

Normal:

 SOS alarm every 30 

seconds and will stop after 3 cycles. 

HOT MIC:

 SOS alarm 30 

seconds,automatically activates MIC 

for 10 seconds, then stop for 20 

seconds, and it will end after 3 

cycles. 

Record Control 

OFF/ON 

Time Zone 

Choose time zone 

Summary of Contents for TM991

Page 1: ...1 USER S MANUAL TM991 4G LTE SOS function 2 4 TFTdisplay Dual SIM Sofeware off line update Mobile PoC Radio Mobile PoC Radio Mobile PoC Radio Mobile PoC Radio Mobile PoC Radio ...

Page 2: ...l items listed below are received If any item is missing or damaged please contact your dealer ACCESSORIES ITEM QUANTITY MOBILE RADIOS 1 PALM MICROPHONE WITH HANDGER 1 ANTENNA LTE GPS 1 POWER CORD WITH FUSE 1 MOUNTING BRACKET 1 LOCKING KNOB 1 SCREW 10 FUSE 1 USER S MANUAL 1 ...

Page 3: ...Key 17 GPS Antenna Connector 2 LCD Display 10 Back Key 18 SIM card 2 slot 3 LED Indicator 11 P1 Key 19 SD card slot 4 Speaker 12 Power Inlet 20 SIM card 1 slot 5 SOS Key 13 External Speaker 21 Bracket Connector 6 Aviation Connector 14 DC Connecto 7 Menu Key 15 Suction Cup Connector 8 Up Key 16 LTE Antenna Connector ...

Page 4: ...he volume b At the interface of volume adjustment press Up Key or Down Key to choose lock or unlock the present volume you adjusted then press Menu Key as confirm 6 Quick Operation In standby mode press following Key to enter corresponding function s operation Up Key choose Group Down Key choose Member Back Key history record P1 to get the last caller s positioning information N O T E Please check...

Page 5: ...gramming Into contacts list to choose a phone number to make phone call directly Call Records Enter to check the telephone calling record if the radio with telephone function Audio Settings Sound Quality Standard High Quality MIC Level 2 1 standard 1 2 Roger Beep ON A beep when transmitting OFF No voice when transmitting Advanced Setting Network Mode Switch 2G 3G 4G AUTO Dual SIM SIM 1 SIM 2 choos...

Page 6: ...utomatically after 10 seconds no operation Brightness Level options from 1 to 9 Auto Lock ON Keypad locked automatically after 10 seconds no operation Only PTT button and Side Keys can use OFF Long press Side key 2 for 2 seconds to lock unlock the keypad manually Language English Simplified Chinese Traditional Chinese Key Tone ON A beep when operating on keys OFF No voice when operating on keys GP...

Page 7: ...TT Records to check the voice records 2 Multi members Selective Call Enter friend or user list short press MENU key to select one or more online friends press PTT to create temporary group for selective call 3 Monitor Group Enter group list short press P1 key to monitor other group s Short press again to cancel ...

Page 8: ... defects in material or workmanship The defects that have not been operated in accordance with the procedures described in the operating instructions The defects that have been subjected to unauthorized modifications tampering disassembly use of non genuine accessories or batteries or repairs including the addition to our product of equipment which is not supplied or authorized by us which adverse...

Page 9: ...tion exposure limits set forth for an uncontrolled environment this transmitter must not be co located or operating in conjunction with any other antenna or transmitter This equipment should be installed and operated with minimum distance 20cm between the radiator you body ...

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