(1) Install antennas before powering on ground system or air system.
(2) Point air system antennas downward when in use, do not twist or bend antennas. Avoid obstructing
antennas to ensure transmission quality.
(3) Keep both ends of air system antennas as further as possible to achieve optimal transmission
performance. In addition, keep these antennas away from metals.
(4) Use only DJI approved antennas and installed them correctly. Other antennas are incompatible.
(5) Only 2.4GHz remote control can be connected to ground system of DJI LIGHTBRIDGE. Chose the
remote control with PPM trainer output.
(6) 2.4GHz remote controls must be connected to ground system for aircraft and gimbal control through
training ports. RF functions must be switched off.
(7) Do not create shorts or open circuits when soldering.
(8) Do not rotate gimbal if connected to camera HDMI port using DJI AV gimbal. This will cause gimbal
or HDMI cable damage.
(9) Disconnect HDMI cable from the camera when powering on the DJI non-HD gimbal. Failure to do so
might damage HDMI cable.
(10) Keep HDMI cable away from on-board GPS module.
(11) Do not modify DJI LIGHTBRIDGE.
Usage Cautions
(1) Check that all connections are correct and firm before every use.
(2) Check ground system battery capacity before every use. If the battery capacity is lower than 25%,
charge ground system. If ground system powers off, the air system will enter failsafe mode.
(3) Check environment before every use to ensure no 2.4GHz device interference (e.g. other 2.4GHz
remote controls, Phantom 2 Visions).
(4) Check remote control channels using DJI LIGHTBRIDGE Assistant before every use to ensure a good
connection and normal functionality.
(5) The air system built-in receiver will go into failsafe mode if the remote control and ground system are
disconnected during use.
(6) Turn smart device sound volume to maximum to hear alarms more clearly, e.g. bad remote control
signal and low aircraft battery capacity.
Aircraft in flight can cause serious damage or injury. Please fly safely at all times.
(7) Flight control system OSD work best when more than 6 GPS satellites are searched.
(8) Land slowly (≤1.5m/s) with the Phantom 2, as rapid landings can cause it to spin.
Others
(1) We strongly recommend using as many DJI parts as possible.
(2) If you have problems you cannot resolve, please contact your dealer or DJI customer service.
In the Box ...................................................................................................................................................................................................... 7
1.1 Air system ....................................................................................................................................................................................... 9
1.2 Ground System ........................................................................................................................................................................... 11
2.1 Air System Installation ............................................................................................................................................................. 13
4.5 Using Ground System ........................................................................................................................................................... 34
5.1 Installing Driver and Assistant ............................................................................................................................................. 35
5.2 Using Assistant ......................................................................................................................................................................... 35
5.2.1 Using LIGHTBRIDGE Assistant................................................................................................................................... 36
5.2.2 Remote Control Channel Settings ........................................................................................................................... 36
FCC and IC Statements ........................................................................................................................................................................ 47
For remote control training port connection.
Connect red port 1 to a remote control for aircraft
control and black port 2 to a remote control for
gimbal control.
Remote control training cable×1
Connect the red jack to the aircraft remote
control to control.
This port be connected to the G7 port on a DJI HD gimbal or to other ports for the functions listed below:
a) Power supply: (V+,V-) On-board battery (3S~6S) power connection. Non-DJI HD gimbal users must
use a seperate power cable or air system power CAN cable to connect air system and on-board
battery.
b) CAN-Bus: (L,H) OSD information from the flight system. For non-DJI HD gimbal users, connect to
the CAN-Bus port (for DJI A2 user, use the CAN 1 Bus port) on the flight control system with a
seperated CAN-Bus cable.
c) DVSB: (G-,+) DVSB video input from DJI HD gimbal.
[2] DBUS port
Connect built in receiver interface to DJI flight control system DBUS port, usually located on the main
controller labled X2. No other receiver requried when DBUS is used. The A2’s built in reciever will
automatically be disabled when DBUS port is used.
[3] UPGRADE port
Connect to PC to upgrade firmware using DJI LIGHTBRIDGE Assistant.
[4] LINK button
Press to link air system with ground system.
[5] CONTROL indicator
Remote control link indicator displays communtation status of air and ground systems.
Insert antennas into positions shown below. Ensure they click into place.
Notes
(1) Install antennas before powering on air system.
(2) Point antennas downward when in use and avoid obstructions to ensure transmission quality.
(3) Use only DJI antennas and install them correctly. Other antennas are incompatible.
(4) Do not unplug the antennas unless it is absolutely necessary. Use tweezers to clamp on the metal part
of the antennas when unplugging the antennas. Do not apply excessive force on the antennas
otherwise it may cause damages to the antennas.
Attach two antennas to ground system according to example below. Screw them in tight.
Notes
(1) Attach antennas before powering on to avoid damage.
(2) Use only DJI antennas and install them correctly. Other antennas are incompatible.
HDMI and USB ports output video, however the output options are mutually exclusive. Select either HDMI
or USB output base on your choice of device.
Connect monitor with HDMI support to HDMI Out port on ground system for video.
Connect smart device to USB port on ground system with USB cable. Use DJI LIGHTBRIDGE App for
video and OSD. The below example uses the USB port connection.
Note
Do not attach HDMI and USB devices to the ground system simultaneously. This will cause HDMI device to
display normally but USB device will not.
2.3 Connection Scenario
DJI LIGHTBRIDGE offers several solutions to connect the gimbal to the flight controller based on gimbal model.
This section provides information about the most commonly seen solutions and their connection diagram. Follow
the connection described in the solutions that best suits your requirements.
2.3.1 DJI HD Gimbal
When using with DJI HD gimbal such as Z15-BMPCC, you can select either single or dual video source. By single
video source mode, it means the air system relays either the gimbal camera video or the FPV camera video signal
to the ground system. These two video sources are mutually exclusive under single video source mode. On the
A DJI password can be used with all DJI Assistants and Apps.
a)
b)
Notes
(1) Log into your account when time you launch DJI LIGHTBRIDGE App for the first time.
(2) If you have forgotten your password, select “Forgot password” to begin retrieval.
[1] Register
Tap ‘Register’ to enter registration page. Enter email and password then tap to create a new
account.
[2] Login
Tap ‘Login’ to enter the login page. Enter registered email and password then tap to log in.
DJI LIGHTBRIDGE App displays video and flight control system OSD information as shown below.
[1] Flight control system control mode.
[2] Flight status.
[3] Air system power voltage indicator.
[4] Video signal status.
[5] Remote control signal status. App sounds an alarm if the remote control signal is weak.
[6] GPS satellite count.
[7] Aircraft attitude/ Aircraft relative position.
[8] Flight altitude.
[9] Flight distance (Distance between current position and recorded Home point. Only displayed when GPS
signal is normal and Go Home position has been recorded. Otherwise, N/A will be displayed.)
1) Display HDMI OSD: Enable or disable the OSD display on your HDMI device.
Note
The OSD is not available when AV video input is selected.
2) OSD Margin: Adjust the OSD position to fit HDMI displays of different sizes.
3) 720P Refresh Rate: Set the refresh rate to 50Hz or 60Hz in Realtime or Smooth mode.
4) 1080I Refresh Rate: Set the refresh rate to 50Hz or 60Hz in Full HD mode.
[6] Warning Settings
1) Alarm: Enable or disable the alarm.
If enabled, the app will set off an alarm in the following scenarios:
a) The aircraft battery is low.
b) The remote control’s transmission signal has been lost.
2) Ground system timeout: Enable or disable ground system timeout. When enabled, if the ground
system is idle for 30 minutes, an alarm will sound and the system will power off.
[7] Signal Diagnostic
If the maximum flight distance is significantly reduced, this could be caused by damaged antennas or a
(1) Connect to ground system for ground system main controller and ground system decoder upgrade,
and connect to air system for air system main controller and air system encoder upgrade,
(2) Internet connection is required for LIGHTBRIDGE firmware upgrade.
(3) DO NOT power off until upgrade is finished.
(4) If firmware upgrade fails, main controller will enter a waiting for firmware upgrade status automatically.
1. Q: Unable to download DJI LIGHTBRIDGE App from Google Play.
A: Follow one of the methods below to download or update the App.
Scan the QR code on the quick start guide to download.
Input the URL of “http://m.dji.net/lightbridge” in the address bar of browser to download.
If you have installed the App before, go to "Settings" -> "About" -> "Check new version" to update
it.
2. Q: Can I use 5.8GHz transmitter to control the gimbal?
A: Yes. Use the lever kit to control the gimbal on Phantom.
3. Q: Can SBUS decoder decode the SBUS signal from the DJI LIGHTBRIDGE?
A: Yes.
4. Q: Is it possible to use single FUTABA transmitter to simultaneously control aircraft and gimbal?
A: Yes. You will need to assign the channels from aircraft and gimbal through DJI LIGHTBRIDGE App.
5. Q: Is it possible to two different brands of transmitter to simultaneously control aircraft and gimbal?
A: Yes. As long as both of the transmitter have PPM output.
6. Q: How to solve the issue of aircraft losing control within couple hundred meters, accompany with blur
screen?
A: Follow the instruction below to resolve this issue:
a) Check if the antenna installation location unobstructed. Try to keep both ends of the antennas
as far as possible. Keep away from metal.
b) Ensure antennas face downward and make sure antennas is intact, otherwise, it may lead to
transmission lost.
c) Check if the antennas is firmly attached to the air system.
d) Run signal diagnostics in the DJI LIGHTBRIDGE App to determine the cause. Remove one of
the antennas, place ground system two meters away from air system and launch DJI
LIGHTBRIDGE App. Enter “Signal Diagnostic” page to check the signal strength. Green bars
indicates signal strength is normal, and readings should falls in the range of -20 to 40. If not,
adjust ground system antennas orientation.
e) Repeat step a,b,c. If problem persists, replace antenna.
f) Contact DJI tech support for assistance.
7. Q: Aircraft enters failsafe when using DJI LIGHTBRIDGE air system.
A: Calibrate remote control through DJI LIGHTBRIDGE Assistant after connect the remote control to
ground system. Fine tune the End Point value for channel U.
8. Q: Can we install two air systems on the same aircraft?
A: No.
9. Q: My on-board camera has WiFi and Bluetooth function, can I turn them on during the flight?
A: No, ensure that you have disabled WiFi and Bluetooth on your camera, otherwise it may interfere air
system transmission.
10. Q: How to improve GPS searching time?
A: Check if HDMI cable stays too close to the GPS module. Maintain 15cm distance between HDMI
cable and GPS module.
11. Q: Air system VIDEO indicator turns solid red when connecting with BMPCC gimbal, is that normal?
A: BMPCC gimbal has its own encoding system, therefore it does not rely on air system for encoding.
Hence air system VIDEO indicator blinks green is work as design.
12. Q: Green lines appear on screen.
A: Check if the output resolution or format is supported by DJI LIGHTBRIDGE.
13. Q: Green lines appear on screen. Air system VIDEO indicator blinks red after rebooting and also no
video output from ground system, what should I do?
A: Air system VIDEO indicator blinks red indicating no video output or unsupported video output
format. Check the following to resolve this issue:
a) Check if the on-board camera is powered on. Connect the camera to a display device to check
whether the signal output is normal. If video output is normal, check whether the video output
format is supported by DJI LIGHTBRIDGE.
b) Examine the HDMI cable condition, should the condition of the HDMI cable is not mint, replace
the HDMI cable.
c) Contact DJI technical support team if the problem persists.
14. Q: Ground system CONTROL LED blinks green.
A: Blinking green indicator means linking is required. Check the follow to ensure linking is carried out
correctly.
a) Antennas are firmly attached on both air system and ground system.
b) Launch DJI LIGHTBRIDGE App to check whether ground system is in master mode, if not,