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Connection
Refer to the illustration below to mount and connect the air unit to
a racing drone.
3-in-1 Cable (Power, DJI HDL, UART)
An electric soldering iron and soldering tin are required
for connection. Make sure that there are no short circuits
or open circuits when soldering the cables.
There are up to eight channels for the air unit depending
on the region (FCC: eight, CE/SRRC: four, MIC: three).
Each channel has a bandwidth of 20 MHz. The public
channel is 8, which is the default channel when the
equipment is powered on. The channel can be changed
manually to avoid interference from other devices.
The air unit may become hot during or after operation.
DO NOT touch the air unit before it cools down.
DO NOT use the air unit for an extended period when
the temperature is high or there is poor ventilation.
Otherwise, the air unit may overheat and enter low-
power mode which will affect its performance. If the
air unit enters low-power mode, restart it or wait for it
to cool down and it will automatically return to normal.
Keep the antennas of the air unit at least 40 mm apart.
Keep the air unit away from metal objects or carbon
fiber frames. Make sure to choose a position where
the transmission will not be blocked during flight.
Activation
When powered on, connect the air unit to your computer and
run DJI ASSISTANT
Download DJI Assistant 2 at https://www.dji.com/fpv/downloads
Linking
The air unit support three linking methods: A, B, and A+B
(Must link A before B).
A.
1. Power on the air unit and the DJI FPV Goggles.
2. Press the link button on the air unit and the goggles.*
3. The linking status indicator of the air unit turns solid green.
The goggles stop beeping when successfully linked and the
video display is normal.
RED: Power (7.4-17.6 V)
BLACK: Power GND
WHITE: UART RX (Connects to Flight Controller
OSD TX, 0-3.3 V)
GRAY: UART TX (Connects to Flight Controller OSD
RX, 0-3.3 V)
BROWN: Signal GND
YELLOW: DJI HDL (Connects to Flight Controller
S.Bus, 0-3.3 V)
TM
2 for activation.
3
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