Power Source Connection - XIEGU G90 Operation Manual

Power Source Connection

Connect your power supply or battery to the DC-IN connector. Current capability
of the DC power supply should be at least 8 amps. Batteries should supply 10.5-
16.5V DC and have capacity to supply up to 10 amps. Typical current
requirements on transmit are generally less than 8A. Use the provided cable to
connect the G90/S to your DC supply. The G90/S transmitter is designed in
such a way that dropping supply voltage from a weak battery has little effect on
the transmitter output power until 10.5v is reached.
The DC power supply must be connected in strict accordance with the following
figure to avoid a reverse polarity connection.
♦ The red wire must be connected with the positive pole of power supply and
black wire to the negative pole of the power supply.
Black line
Red line
♦ A Ferrite Choke may be attached to the power wires to prevent external RF
from entering the radio via its power lines and RF interference from inside the
radio from radiating externally via the power cable. When installing a ferrite
choke, place it closest to the radio end of the DC cable.
♦ Polarity of power cables should be checked carefully to avoid reverse
polarity when connecting your power supply or battery.
♦ Although the G90/S has reverse polarity protection reverse connection
of power should be avoided.
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