EN
8
Digital Video Transmission
In addition to install the Pagoda antenna
(SMA interface) to the SMA Port of the
DJI Goggles RE, you will also need to
install the DJI OcuSync Air System on a
third-party racing drone to work with the
goggles. Refer to the illustration below to
mount and connect the modules onto your
aircraft.
Antenna Description
Pagoda Antenna
5.8 GHz single frequency circular polarization omnidirectional,
small size, recommended for racing. Do not use this antenna
when using the 2.4 GHz frequency band.
Cylindrical Antenna
Dual-frequency circular polarization omnidirectional, providing a
smooth video transmission experience.
Dipole Antenna
Dual-frequency linear polarization omnidirectional, suitable for
close-up ight.
After familiarizing yourself with the digital video transmission, you can connect the trainer
port of a third-party remote controller and the audio port on the DJI Goggles RE through
the trainer cable to transmit the control signal to the racing drone.
The S.Bus Port and the PPM Port on the Air Unit are only used when transmitting the remote control signal.
These ports don’t need to be connected if video downlink is used only.
There are up to 19 channels (5.8 GHz: 12 channels, 2.4 GHz: 7 channels) for digital video transmission, and
each bandwidth is 10 MHz. You can select the transmission channel manually to avoid interference from
other devices.
Please be aware that the Air Unit may become very hot during, or after operation. DO NOT touch it before it
has cooled down sufciently.
Please avoid using the Air Unit for an extended time when there is no external cooling equipment.
Otherwise, it might get overheated and enter into overheat protection mode. Wait for the module to cool
down and then you can restart it. It is recommended to have an external fan installed to dissipate heat.
Place the two antennas on the Air Unit vertically and parallel to each other at least 30 mm apart. Please
note that you should avoid placing the antennas level with any type of conductor. Also, make sure to keep
the bottom of the antenna at least 25 mm away from potential conductors like cables, carbon ber frames,
batteries, and metals, etc.
If you are only using the Air Unit to transmit the downstream video signal, DO NOT use the same frequency
band as the upstream control signal to avoid interference.
3-in-1 Cable (Power, S.Bus, UART)
RED: Power (9-16.8 V) WHITE: UART RX (Connects to OSD TX, 0-3.3 V)
BLACK: Power GND GRAY: UART TX (Connects to OSD RX, 0-3.3 V)
BROWN: Signal GND YELLOW: S.Bus (Connects to Flight Controller RX, 0-3.3 V)
DJI OcuSync Camera
Devices that support PPM
signals (e.g. actuator)
PPM Cable
RED: Power (5 V)
BLACK: Signal GND
WHITE: PPM signal (0-5 V)
Antennas