XIEGU G1M Operation Manual page 8

When the G1M uses an external power supply, in order to prevent external interference from entering the radio through the
power line, and radio frequency interference in the radio radiates outward through the power line, an EMC magnetic ring can be placed
on the power line. Install the magnetic ring as close as possible to the side of the power plug.
When using an external power supply, carefully check the polarity of the power cord to

prevent the polarity from being reversed.
The limited warranty of this radio does not include damage caused by an external power

connection error, or damage caused by abnormal power supply voltage.。
7