Hytera HR65X - Solution; VSWR Alarm; Description

Alarm Information
User Guide
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indicator glows red and the LED displays "E6".
In this case, the repeater stops transmission.
7.3.2 Solution
When the repeater triggers this alarm, to avoid risk of burns, DO NOT touch the repeater.
Use the digital thermometer with thermocouple to check whether the surface temperature of the PA module is
over 90°C.
 If yes, go to step 2.
 If no, go to step 3.
Check whether the ambient temperature and ventilation conditions of the repeater meet the installation
requirements.
For the high-power HR65X, besides the temperature and ventilation conditions, check whether the fan works
and the heat exhaust duct is clean.
 If yes, go to step 3.
 If no, take appropriate measures (for example, install more heat sink devices, replace fans, or clean the duct)
to reduce the ambient temperature and improve ventilation.
Check whether the TX power is too high and the temperature of heat sink is rising too fast.
 If yes, go to step 4.
 If no, contact your local dealer for technical support.
Check whether the RF adapter cable, antenna, or feed line is properly connected.
 If yes, contact your dealer for technical support.
 If no, re-connect or replace the cable, antenna, or feed line.
7.4 VSWR Alarm
7.4.1 Description
When the repeater detects the VSWR at the TX antenna of the PA module exceeds the upper threshold, the alarm
indicator glows red and the LED displays "E7".