13. TOT
Enter this option following previous menu operating mode. The emission limit time setting (TOT) range is OFF, 30S~ 270S and the step is 30S. You
can select by the [UP] or [DOWN] key.
14. Language
Enter this option following previous menu operating mode. Language options are English/German/Spanish/Italian/French/Portuguese/Chinese. You
can select by [UP] or [DOWN].
Manual setting of talkback frequency operation
This machine supports setting the talkback frequency manually. The specific operation is to press and hold the [FUN] key in the full-range mode until
the 10MHz bit on the screen flashes. At the same time, the machine will make a "click" sound. Use the [UP] and [DOWN] keys to change the ten
megabits. Then press the [FUN] key to jump to the MHz bit flashing and jump to the setting of 100 MHz and +KHz through the [FUN] key. Set the
desired value with the [UP] and [DOWN] keys. After selecting the desired frequency, press the [FUN] button again to confirm the exit. Press the
[V/M] key to cancel the exit during setup.
Troubleshooting guide
Problems
Solutions
No sound and reaction
The battery pack may be exhausted. Replace it with a new one or recharge it.
The battery pack may not be installed correctly. Remove the battery pack and reinstall it.
The battery will not last long after it is fully
charged.
The battery pack has reached its limit. Please replace the new battery pack.
Fail to talk to other members in the group.
Verify that the frequency and sub-audible signal you are using are the same as other members
in the group.
Other members in the group may be too far apart. Please confirm that you are within valid
communication distance.
Other (non-member) sounds appear on the
channel.
Please change the sub audio signal. At the same time, change the sub audio signals of all
interphones in the group.
Near call distance
Check whether the antenna is in good contact.
Check whether the antenna is original.
Check whether the battery voltage is normal.
Adjust the squelch level.
