Hytera HR106X - PA Over-Temperature Alarm; Over-Voltage or Under-Voltage Alarm

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5.3 PA Over-Temperature Alarm
5.3.1 Description
When the repeater detects that the internal temperature of the PA module exceeds the upper threshold, the alarm
indicator glows red and the alarm code E6 appears on the display.
At this time, the repeater stops transmission.
5.3.2 Solution
1. Check whether the surface temperature of the PA module is over 120°C.

If yes, proceed with Step 2.

If no, proceed with Step 3.
Do not touch the repeater to avoid risk of burns. You can use a digital thermometer with
thermocouple to
measure the temperature.
2. Check whether the ambient temperature and ventilation conditions of the repeater meet the installation
requirements.

If yes, proceed with Step 3.

If no, take the appropriate measure (e.g. air conditioner) to reduce the ambient temperature and improve
ventilation.
3. Check whether the TX power is too high and the temperature of heat sink is rising too fast.

If yes, proceed with Step 4.

If no, contact your local dealer for support.
4. Check whether the RF adapter cable, antenna, or feed line is properly connected.

If yes, contact your local dealer for support.

If no, re-connect or replace the cable, antenna, or feed line.
5.4 Over-Voltage or Under-Voltage Alarm
5.4.1 Description
When the repeater detects that the voltage of the external power supply is out of the range, the alarm indicator glows
red and the alarm code EH (over voltage) or E3 (low voltage) appears on the display.