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General| Model | THR880i |
|---|---|
| Network | TETRA |
| Display Type | Monochrome graphic |
| Camera | No |
| SIM | Mini-SIM |
| Phonebook | Yes |
| Call records | Yes |
| Loudspeaker | Yes |
| 3.5mm jack | No |
| Messaging | SMS |
| Radio | No |
| Battery | Li-Ion |
| Alert types | Vibration |
Initial setup steps for the radio, including battery installation and charging.
Overview of basic operations for making and receiving calls, including group and phone calls.
Explains operation of the radio without network connection for direct communication.
Details factory default PIN and security codes and their purpose.
Step-by-step instructions for installing the battery into the radio.
Instructions on how to connect the charger and charge the radio's battery.
How to navigate and select functions within the radio's menu system.
Steps to initiate group communication by setting up talk groups and scanning.
Step-by-step guide on initiating an express call to another person.
How the radio alerts and allows the user to answer an incoming express call.
Steps for speaking during an express call after receiving it.
Guide to making standard phone calls to public or TETRA network numbers.
Introduction to direct mode operation without network.
Steps to initiate communication using the radio's direct mode feature.
Information on how direct mode calls are received and displayed.
How to speak during a direct mode call by pressing the PTT key.
Steps to initiate a direct mode call to a selected channel and group.
Making red key and emergency calls when operating in direct mode.
Explains the function and operation of the built-in GPS receiver.
Instructions for saving contact details, including names, numbers, and notes.
Reading and sending status messages, including predefined types and callback requests.
Managing text messages, including writing, sending, and reading.
Guidelines for charging and discharging the device's battery for optimal performance.
Safety precautions for switching on the device, avoiding interference and danger.
Emphasizes obeying traffic laws and prioritizing driving safety.
Instructions to switch off the device near medical equipment in hospitals.
Mandates switching off the device when flying in an aircraft.
Steps to make an emergency call, including providing location details.
How to switch the radio from network mode to direct mode.
Setting and managing alarms, which function even when the radio is off.
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