Walkera R400 User manual

www.walkera.com
4K
R
June 30, 2021
QUICK START GUIDE
V1.0
RTK positioning | 4K HD camera


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R400
Quick Start Guide
Contents
5
3
9
9-10
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21
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12
6-7
8
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13-16
16-17
17-18
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19-20
1.0 Get to know your aircraft
2.0 Get to know your Remote Controller
3.0 Specifications
4.0 Attention Before Flight
5.0 Check Battery Levels
6.0 Charging
7.0 Download and install R400 APP
8.0 APP Interface Instructions
9.0 Prepare for Remote Controller
10.0 Prepare for Aircraft
11.0 Ready for Flight
11.1 Starting the aircraft & Get binding
11.2 Connect the APP
11.3 Satellite positioning signal instructions
11.4 Motor Unlock/Lock
12.0 Flight Control
13.0 Gimbal Control
14.0 Camera control
15.0 End flight
16.0 Additional remarks
16.1 Downward fixed height system
16.2 Forward obstacle avoidance system
16.3 Compass Calibration
16.4 Remote control settings
17.0 Flight Battery Safety Guidelines
17.1 Battery Use
17.2 Battery Storage

1)CW propeller ( )
2)CCW propeller ( )
3) RTK antenna
4) Battery
5) Forward obstacle
avoidance system
6) 4K camera gimbal
7) Battery level indicator
8) Power switch
9) Motor
10) MicroSD card slot
11) Aircraft status indicator
12) Downward fixed height system
13) Flight control upgrade port
14) Expansion port for external
equipment (upgrade spare)
15) Exhaust hole of cooling fan
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5
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2
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2
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Walkera All Rights Reserved
R400
Quick Start Guide
1.0 Get to know your aircraft
Equipped with a high-precision navigation and positioning system, with network RTK services, the positioning
accuracy can reach centimeter level.
Equipped with a laser radar ranging and obstacle avoidance system, it can realize the functions of precise
determination of the height below and automatic obstacle avoidance in the front, reducing accidents caused by
operating errors.
Using 2.4GHz & 5.8GHz dual-frequency long-distance digital encryption transmission technology, the maximum
image transmission distance can reach 7.7km.
Using 3D pan/tilt and 4K camera can shoot 4K high-definition video stably.
* 1) To avoid property loss and personal injury caused by wrong operation, please read the manual carefully, upgrade the firmware and
calibrate the related items by watching the tutorial video at www.walkera.com before using R400.
2) Rotating propellers can be dangerous. Do not start the motors when there are people nearby.

The remote control uses 2.4GHz & 5.8GHz dual-frequency long-distance digital encryption transmission technology,
which can display high-definition images on mobile devices in real time through the R400 APP, and the folding
bracket can stably place the mobile phone.
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R400
Quick Start Guide
GPS
S
Attitude
A
1
2
3 3
4
5
6
7
8
910 11
12
13
14
DE
16
15
23
24
17 18 19 22
2120
h) The vertical distance
between the current
position of the aircraft
and the take-off point.
i) H.S horizontal speed
j) V.S vertical speed
8) Power switch
9) Menu button
10) Confirm (enter) key
11) Four-dimensional joystick
12) Right stick
13) Return home button
14) Automatic take-off and
landing three-gear switch A
1) Antennas
2) Mobile phone holder
3) Hanging buckle
4) Flight mode three gear switch
"S" position (Motion mode)
"GPS" midpoint position (GPS mode)
"Attitude" position (Pose mode)
5) Idle
6) Left stick
7) Interactive information
LCD display
{
15) Button D (idle)
16) Right dial
17) Photo button
18) Toggle the third
gear switch C
19) Charging/upgrade
port
20) USB port
21) Toggle the third
gear switch B
22) Video button
23) Right dial
24) Button E (idle)
a
g
h
i
j
f
bcde
a) The current positioning
accuracy of the aircraft.
b) The number of satellites
received by the traveling
device.
c) Aircraft connection status
d) Aircraft battery level
e) The battery level of the
remote control
f) The current flight mode of
the aircraft.
g) The horizontal distance
between the current position
of the aircraft and the take-off
point.
3.0 Get to know your Remote Controller
Forward
Take “American hand (left hand throttle)” as an example. The left stick controls the aircraft' s altitude and heading,
while the right stick controls its forward, backward, left and right movements.
Left Right
Tilt left
Turn left Turn right
Tilt left
Left Stick Right Stick
Up
Down Backward
* 1) The remote control is divided into American hands and Ja panese hands according to the control habits, which can be switched in
the remote control settings. It is recommended that beginners use the American hand as a control method.
2) American hand (left hand throttle): Left stick--THRO/RUDD; Right stick --ELEV/AILE.
3) Ja panese hand (right hand throttle): Left stick--ELEV/RUDD; Right stick--THRO/AILE.
4) Please fly your aircraft in the open air without shelter and electromagnetic interference. The maximum signal range for the remote
controller being about 9km is tested in experiment and only for reference.
Turn
Left
Turn
Right
Tilt
left
Tilt
Right

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R400
Quick Start Guide
3.0 Specifications
420mm
461× 461× 221mm
KV value 650rpm/V
Continuous current 45A
Diameter× pitch: 11× 4.5 inch
1.5kg
2.0kg
5m/s
3m/s
GPS mode:5m/s(windless)Motion mode:10m/s(windless)Pose mode:25m/s(windless)
GPS mode: 25°Motion mode:30°Pose mode: 30°
150°/s
4500m
12m/s
22.2V7000mAh,LiPo 6S, 155.4Wh
50 minutes
-10~ +45
Aircraft
Symmetrical Motor Wheelbase
Dimensions(L x W x H)
Motor
ESC
Propeller Specifications
Standard Take-off Weight
Maximum Takeoff Weight
Max Ascent Speed
Max Descent Speed
Max Horizontal Flight Speed
Max Angle Of Inclination
Max Speed Of Rotation Angle
Max Service Ceiling Above Sea Level
Max Wind Resistance
Battery
Flight Time
Working Temperature
Network RTK
Use frequency band
Orientation accuracy
positioning accuracy
Positioning update rate
Cold start
Hot Start
Recapture
Initialization reliability
Differential data transmission format
Data link
Communication distance
Working temperature
GPS: L1 /L2/L5 GLONASS:F1/F2
BeiDou: B1/B2/B3 Galileo:E1/E5
0.2 degree/1m baseline
Level: 1cm+1ppm
Vertical: 2cm+1ppm
1ppm: For every increase of 1km, the accuracy will deteriorate by 1mm.
1Hz, 2Hz, 5Hz, 10Hz and 20Hz
45s
10s
1s
99.9%
RTCM 2.X /3.X
4G
Unlimited distance (with 4G network signal)
0°C to 45°C
Downward fixed height system
Velocity Range
Height Measurement Range
Hover Accuracy Range
Frequency
Flight speed < 18km / h (height 2 m, sufficient light)
≤ 12m
± 0.1m
100Hz
Forward obstacle avoidance system
Obstacle detecting range
FOV
Frequency
12m
Horizontal 30°; vertical ± 2.4°
100Hz
Gimbal
Input Voltage
Stabilization System
Controllable Range
Max Controllable Speed
Controllable Accuracy
12V
3 axis (Pitch, Y aw, Roll)
Pitch: -90° to +30°; Y aw: ± 40°
Pitch: 30 ° / s; Roll: Direct angle control
Static: ± 0.01°; Motion: ± 0.02°; Shake-proof: ± 0.01°

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R400
Quick Start Guide
Camera
Sensor
Lens
Photographing
Video recording
Z oom
Video encoding
Support file system format
Video format
Picture format
Support Memory Card Type
SONY : 1 / 2.7 inch CMOS; effective pixels 2 million
FOV86°; equivalent 24mm focal length; f/2.6 aperture
Support 41 million pixels, 32 million pixels, 21 million pixels, 16 million pixels
6K (5480* 3648) 25fps
4K (3860* 2160) 25fps/30fps/60fps
25x lossless digital zoom
H.264, H.265
exFat
MP4
JP G
Support memory card type: Micro SD card, maximum support 512G, Micro SD card with transmission
speed of Class10 or above or UHS-1 rating
Remote Controller
working frequency
Maximum communication distance
Display screen
Mobile device stand
battery
Working temperature
Charging environment temperature
2.4GHz& 5.8GHz dual frequency
7.7km (open and unobstructed, no electromagnetic interference)
2-inch LCD screen; resolution: 128* 64
Suitable for most mobile phones currently on the market
7.4V 2200mAh LiPo 2S
-10°C to 40°C
5°C to 40°C
4.0 Attention Before Flight
1) This product uses 2.4G & 5.8G dual-band transmission. Please fly your aircraft in the open air without shelter and
without electromagnetic interference.
2) This product is suitable for people who has flight experience of hobby model and ages 14 .
3) Don’ t fly in a bad weather, such as windy, snowy, foggy etc.
4) Select the open, no-tall-buildings area. Extensive steel-used buildings will affect the compass, blocking the GPS
signal, causing worse on the aircraft positioning or even not able to locate.
5) Please keep away from highly spining parts(such as propellers and motors).
6) Please keep away from obstacles, people, water and so on.
7) Don’ t fly it in where there is high-voltage lines, communication base stations or radio towers, in order to avoid
signal interference.
8) Don’ t fly in no-fly zone according to the local laws and regulations.
9) Flight performance will be effected with environment when flying above 4500m of sea levels,as the battery and
gravity system will be influenced.

Charging operation steps:
6.1 Charging the aircraft battery
6.0 Charging
Connect the charger power cord, charger, and aircraft battery as shown in the figure.
1) After connecting the battery and the charger, the charger indicator lights up and the battery starts to charge.
2) After the charger is fully charged, the green light on the charger turns on, please remove the battery from the charger.
Connect to AC power 100~ 240V
Remote control: Press and hold the power switch for 2~ 3 seconds to turn on the remote control (repeat this operation to turn off the
remote control), and check the battery level on the LCD display.
Aircraft battery power: Short press the power switch once and the power indicator is always on (display power).
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R400
Quick Start Guide
6.2 Charging the remote control
Tip:
This remote control uses a built-in integrated rechargeable lithium battery, compatible with the market standard Micro
USB interface, and a 5V power adapter (such as a USB charger for digital products such as mobile phones and
cameras) for charging. If you encounter smoke, peculiar smell, or liquid leakage
while charging the remote control, please do not continue to charge the remote
control, please send it to our company for repair.
Do not charge the product in the area where babies touch,
to avoid the risk of electric shock.
Do not charge this product in an environment exceeding 60°C.
5.0 Check Battery Levels

On this interface, you can preview the real-time high-definition video and photos taken by the R400, and dynamically set the parameters
of the aircraft, remote control, gimbal, and battery.
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03:58:45
2.4G 77%
Connected
Pose Mode
5.30 m
15 m
D H H.S V.S
17.1 m 0.0 m/s 0.0 m/s P0.0° R0.0° Y0.0° GPS Ready
19
18
17
13
14
16
15
98%
Center Down
7.0 Download and install R400 APP
APP only supports Android phones. Please use Android phones to download and install the APP. Please go to
(http://apps.walkera.com/r400) to download and install or scan the QR code below to download and install with a
browser.
R400 APP download
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R400
Quick Start Guide
8 .0 APP Interface Instructions
2)Back: Back to last step.
1)Forward Lidar ranging value: real-time display of the distance
between the aircraft and the object/obstacle directly in front of it.
3)Device connection status: Display Aircraft connected or
disconnected.
4)Flight time: Aircraft flight time.
5)The aircraft Mode: Displays aircraft’ s flight mode.
6)Numbers of aircraft satellite:Display the received satellites of
aircraft.
7)Positioning accuracy:Display aircraft positioning accuracy.
8)High-definition image transmission signal strength:Shows
the strength of the video signal transmitted between the
aircraft and the remote control.
11)Aircraft battery level: Real-time display of the current
aircraft battery level.
9)Remote signal strength: Displays the control signal strength
between the remote controller and the aircraft.
10)Remote battery level: Displays the current remaining
battery power of the remote controller in real time.

16)Satellite positioning status: The RTK satellite positioning
signal has been received, and it displays "GPS Positioned";
when it is not connected, it displays "GPS Not Positioned".
Waypoints
15 m
D H H.S V.S GPS Ready
17.1 m 0.0 m/s 0.0 m/s P0.0° R0.0° Y0.0°
1.30 m
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03:58:45
2.4G
98%
97%
Connected
Pose M ode
Set the WeChat account and the object of the aircraft location sharing
Turn on/off aircraft location sharing
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R400
Quick Start Guide
1) Install the antennas. 2) Stretch the mobile device support upwards,
place the mobile phone to clamp it, and then
connect the mobile phone to the remote
control with a data cable with OTG function.
3) Adjust the position of the antenna
and the position of the mobile
phone.
12)Setting: Click the icon“ ”to open the Setting menu,
Normal setting, aircraft, remote control, gimbal and battery
can be set.
15) Gimbal quick actions: Back to center and down.
13)Camera settings: Touch the “ ” icon to preview, there are
professional, picture, video and other settings.
Others:
(1) grid; (2) anti-flicker; (3)2.4G& 5.8G channel switching;
(4) format SD card.
14)Camera Working Mode Switch: click the icon“ ” once,
and the camera working mode will switch between photo
& video modes once.
When switching to taking photos: tap the icon“ ” to trigger
the camera to take photos.
When switching to recording: tap the icon“ ” to start/
stop recording.
Camera Working Mode Switch: click the icon“ ” once,
MODE
17)Flight status parameters:
Distance(D): horizontal distance between aircraft and
returning point.
Height(H): vertical distance between aircraft and returning
point.
Horizontal speed(H.S): speed of aircraft in a horizontal
direction.
Vertical speed(V.S): speed of aircraft in the vertical direction.
Pitch angle(P): The front and rear tilt angles of the aircraft.
Roll angle(R): The left and right tilt angle of the aircraft.
Heading angle(Y ): The left and right steering angle of the
aircraft.
18)Automatic obstacle avoidance switch: Turns on or off the
automatic obstacle avoidance function.
22)Map thumbnail icon: Click the map thumbnail icon to quickly
switch to the map interface (please turn off the aircraft
power before flight and click " map thumbnail" when
networking.)
W aypoints
Route Plant
M ap lock
M ap switch
9 .0 Prepare for Remote Controller

When controlling the aircraft, be sure to keep the aircraft within the best communication range. Adjust the position
or distance between the controller and the aircraft in time to ensure that the aircraft is always within the best
communication range.
Do not use other communication
devices in the same frequency
band at the same time, so as
not to interfere with the remote
controller signal.
3) Put the aircraft in a horizontal position,
and the tail status indicator will change
from fast flashing to slow flashing. The
code matching is successful.
Red LED
2) Short press the battery power switch once,
and then press and hold the power switch
for 3~ 5 seconds to turn on the aircraft battery
power switch.
3) Align the battery interface with
the battery interface seat and
insert it into the aircraft battery
compartment.
1) Unfold the blades.
2) Remove the camera protection cover
and install the MicroSD memory card
(the notch faces the direction of the
camera head).
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Quick Start Guide
O ptimum communication range
10.0 Prepare for Aircraft
Before you plan to fly, please download the map in the APP (turn off the aircraft power,and
connect internet, click the " A thumbnail map icon" to download the map).
Place the aircraft in an open outdoor area, with its tail facing the operator.
11.0 Ready for Flight
11.1 Start the aircraft &Get code binding
1)Turn on the remote controller.
Tips: W hen the code is being checked, if the red and green LED lights keep flashing fast, it means the aircraft
is abnormal, please refer to the APP tips.

Throttle stick
11.3 Instructions for satellite positioning signal
Lock the motor
After the aircraft touches the ground, push the throttle stick to the lowest position and hold it for 5 seconds before
the motor stops.
11.4 Unlock/ lock the motor
Unlockthe motor
After the code matching is successful, put the left and right joysticks at the lowest position at the same time and keep
it still until the motor rotates. Please release the joysticks in time after turning.
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R400
Quick Start Guide
The satellite positioning status window in the lower right corner of the APP displays "GPS Positioned" to indicate
that the RTK satellite positioning signal has been received. The status bar at the top of the APP shows that the
number of satellites is large and the positioning accuracy is high, which indicates that the current satellite positioning
signal is strong.
1) Click the "R400" icon on the main page of the remote control system.
2) Touch "Select Device";Click the device name that matches the device on board the aircraft; then click "Enter
Connection".
3) Click "Enter Connection" to enter the main interface.
5.30 m
15 m
D H H.S V.S GPS 已定位
17.1 m 0.0 m/s 0.0 m/s P0.0° R0.0° Y0.0°
Center Down
5.30 m
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2.4G 77%
Connected
Pose Mode
R1000-Thermal
R1000-Starlight
R1000-4K
R1000-6K
2
3
1
11.2 Connect the APP
32
2.4G
GPS/ RTK M ode
Number of satellites Positioning accuracy

Operate the sticks as shown below to start the motor, then push the throttle stick up to allow the aircraft to take off.
Throttle stick
Throttle stick
Left and right sticks (to start the motor)
12.1 M anual takeoff
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R400
Quick Start Guide
S
GPS
Attitude
A
12.0 Flight control
Attentions:
1) Ensure that the satellite positioning signal has been received (check the RTK satellite positioning
status in the APP).
2) O nly when “ Connected” displays on the upper bar of the main interface of the APP, you can perform
APP operation.
3) Please switch the flight mode before takeoff (check the current flight mode with APP).
4) Please unlock motors before takeoff (see 11.4 for unlocking method).
5) W hen the APP interface shows " The current battery is low, only 20% left! Please return as soon as
possible! ! ! " W hen the battery is low, please return as soon as possible, because the aircraft can only
fly for another four to five minutes at this time.
12.2 M anual Landing
Pull down on the throttle stick until the aircraft lands on the ground. When the aircraft is landed, push the throttle stick down to the
lowest position and hold it for 5 seconds. The motors will then stop.
12.3 Auto Takeoff
After the motor is unlocked, first turn the remote control flight mode switch to the midpoint "GPS" position, and then turn the remote
control automatic take-off /landing switch "A" to the upper end, the aircraft will take off automatically.
Attentions:
1) Auto Takeoff can work only in GPS mode.
2) The default altitude of Auto Takeoff is 3m. When you need to control the throttle manually, you must push the throttle stick to the
middle point or over to release the Auto Takeoff mode.
3) After auto takeoff, please switch to the remote control flight mode according to your needs.

S
GPS
Attitude
S
GPS
Attitude
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Quick Start Guide
S
GPS
Attitude
A
When the aircraft' s flight mode is in positioning mode (the remote controller' s flight mode switch is at the midpoint "GPS"), turn the
remote controller' s automatic take-off and landing switch "A" to the bottom, and the aircraft will land automatically. After landing on
the ground, the motor automatically stops.
12.4 Auto Landing
In the GPS mode
Attention:
1) During landing, you can operate the aircraft forward, backward, rightward and leftward.
2) During the landing process, please switch the flight mode of the remote controller if landing needs to be cancelled.
Attentions:
1)In GPS mode, altitude holding, location fixing and braking functions are available, and the flight speed is lower.
2) If the RTK signal are poor or there are no signal, it can only set the altitude, but not the location.
3) After switching to manual mode, location fixing is invalid.
12.5 GPS M ode
Turn the flight mode switch of the remote controller to the midpoint "GPS" position, return the throttle stick to the center, and the aircraft
will enter the positioning mode.
Turn the flight mode switch on the left side of the remote control to the upper "S" position, and the aircraft will enter the Motion Mode.
Attention:
1) In the Motion Mode, there are Altitude hold, fixed point, brake function, the flight speed is faster.
2) If the RTK signal are poor or there are no signal, can only be Altitude hold, but not fixed point.
3) Switch to manual mode can not be fixed point.
12.6 M otion M ode

Press the H button to allow the aircraft to automatically return to home.
12.8 Return To Home
The process of the aircraft automatically returning to the last recorded home point is called homing. The aircraft provides users with
two different ways to return to home, they are smart return and return home out of control.
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Quick Start Guide
GPS
S
Attitude
A
You can only enter the route flight and route planning interfaces when the aircraft is in GPS mode.
Click this icon to add waypoints
Add
Clear Click this icon to clear waypoints
Start
Click this icon to start waypoints flight
Exit Click this icon to exit
Route flight (operate in APP map interface) Route planning (operate in APP map interface)
Tap the icon in the map interface to enter the route flight
interface.
Tap the icon in the map interface to enter the route planning
interface.
Tap the icon in the map interface to enter the route planning
30
H
4
W
GENERATE
LINE
Firstly, set the waypoint on the
map interface and touch this
icon to generate the route.
Angle:
Angle:
Set fore-
and-aft
course
overlap
H: Set waypoint
height
W : Set sidelap
Click this icon to clear waypoints
CLEAR
Click this icon to delete the
current waypoint and go back
to the previous waypoint.
Goback
Touch this icon to align the edges
after the route is generated.
ALIGN
EDGE
Touch this icon to start flying.
START
Click this icon to exit
EX IT
12.7 Route Flight and Route planning
Horizo ntal distance between aircraft and Home point > 30m
a. When the aircraft flight altitude is over 40 meters, the aircraft will maintain its current altitude, automatically fly back to the top of the
Home point, and then descend vertically.
b. When the aircraft flight altitude is below 40 meters, the aircraft will ascend vertically to 40 meters, automatically fly back to the top
of the Home point, and then descend vertically.
Horizo ntal distance between aircraft and Home point < 30m
a. When the aircraft flight altitude is over 40 meters, the aircraft will maintain its current altitude, automatically fly back to the top of the
Home point, and then descend vertically.
b. When the aircraft flight altitude is below 40 meters, the aircraft will maintain its current altitude, automatically fly back to the top of
the Home point, and then descend vertically.

Altitude difference from home point > 40m
Horizontal distance between aircraft and Home point > 30m or < 30m
Horizontal distance between
aircraft and Home point < 30m
Horizontal distance between aircraft and Home point > 30m
Altitude difference
from home point < 40m
Elevate
to
40m
40m (can be
defined from
25 to 100m)
Home point
Descend vertically
Descend vertically
The three-axis stabiliz ed gimbal provides a stable platform for the camera, so that the camera can shoot a stable picture even
when the aircraft is flying at high speed.
You can use the left and right dials of the remote control or APP software to control the pan/ tilt.
Pitch angle (PIT)
4.30 m
15 m
D H H.S V.S GPS 已定位
17.1 m 0.0 m/s 0.0m/s P0.0° R0.0° Y0.0°
Center Down
4.30 m
18
03:58:45
2.4G 77%
Connected
Pose Mode
Swipe up or down on the APP
image interface.
Turn the left dial of the remote
control to the right or left.
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Quick Start Guide
Attentions:
1) Do not operate other switches or buttons after pressing the H button.
2) When the aircraft loses the signal of the remote control, it will automatically enter the Uncontrolled RETURN TO HOME mode.
3) If the RTK signal is abnormal or does not work, Return to Home is impossible. Please operate the aircraft to land manually.
4) Press the H button once again during the RETURN TO HOME to cancel the RETURN TO HOME.
5) During the Uncontrolled RETURN TO HOME, after the remote control signal returns to normal, the RETURN TO HOME process
will continue, but you can switch to manual mode to cancel the RETURN TO HOME.
6) If the aircraft is landing too fast when the altitude is lower than 15 meters during the Uncontrolled RETURN TO HO M E landing
process, you must manually push up the throttle stick slightly to slow down the aircraft' s descent speed to ensure the
aircraft' s safe landing.
13.0 Gimbal Control

14.1 Adjust the brightness of the camera shooting screen
W hen the image is dark or bright, you can use the camera to set the automatic mode or manual mode in the professional options.
M anual mode: Y ou can adjust the brightness of the screen by adjusting the shutter speed, ISO sensitivity, and exposure compensation.
Auto mode: Only exposure compensation can be adjusted.
Tip: O nly when the main interface of the APP has received the image transmitted by the aircraft camera, the touch screen
can be used for control.
14.0 Camera control
Turn on Turn on
In the professional settings of the camera, the exposure compensation value can only be adjusted when the exposure
compensation switch is turned on.
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Quick Start Guide
Note: The angle of the dial determines the speed of change of the gimbal: when returning to the midpoint, the speed is 0.
The greater the angle of dial, the faster the speed of change of the gimbal, and vice versa.
Swipe left or right on the returned
screen on the APP main interface.
Horizo ntal angle
(YAW )
4.30 m
15 m
D H H.S V.S GPS 已定位
17.1 m 0.0 m/s 0.0m/s P0.0° R0.0° Y0.0°
Center Down
4.30 m
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03:58:45
2.4G 77%
Connected
Pose Mode
Turn the right dial of the remote
control to the right or left
0°
+ 40°
-40°

Take Photo: Short press the camera button “ ”on the remote control once to
take a photo of the camera and save it to the aircraft memory card.
Video: Short press the remote control video button “ ”once, the camera will
start recording, short press the video button“ ”again, the camera will stop and
save the video to the aircraft memory card.
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Quick Start Guide
Attention:
1) When video recording, it is not possible to switch the Auto mode and Manual mode; in the Auto mode,the exposure
compensation(EV) can be adjusted only; in the Manual mode, the sensitivity(ISO)value and the exposure
compensation(EV) can be adjusted, and the shutter speed(Expose)value cannot be adjusted.
2) In Manual mode, when the shutter speed(Expose)value and the sensitivity(ISO)value are increased in dark scenes,
the image screen becomes brighter. If the camera lens is facing a brighter light, the screen is often burst, you need
to adjust the shutter speed(Expose) value or the sensitivity(ISO) value to readjust the image brightness; when the
picture is manually adjusted in a brighter scene, when the camera lens is aimed at a darker place, the shutter value
speed(Expose) or the sensitivity(ISO) value must be adjusted manually to adjust the picture.
The downward fixed height system uses lidar to emit light pulses to detect the distance between the aircraft and the ground
below to get the current height of the aircraft (the height can be determined only when the flying height is less than 3 meters).
16.0 Additional remarks
16.1 Downward fixed height system
LiDAR Height Fixing System
1)Manual Landing, AUTO Landing or Return to Home function landing, lock the motor after landing on the ground.
2)Turn off the power of the aircraft first, and then turn off the power of the remote control.
3)Finally, remove the battery from the aircraft.
15.0 End flight
14.2 Photo & Video
Note: The aircraft cannot be operated by the touch screen until the APP main screen displays a image transmitted from the aircraft.
Photo and video can be controlled by the physical buttons of the remote control or in the APP interface
The main interface of the APP controls photos or videos
1) Select working mode: take photo or video;
2) Tap the camera icon “ ” to take a photo;
3) Tap the video icon “ ” to start recording, and tap the video icon “ ” again
to stop the video and save the video to the aircraft memory card.
The physical buttons on the remote control control photos or
videos 00:00
Video
icon
Photo
icon
Operating
mode
Camera
settings

Short press the remote control menu button " " to enter the remote control
system setting menu. There are: remote control settings (joystick mode setting,
joystick amount and dial amount calibration, restore settings), image transmission
settings (linking, image transmission reset), Device information (language settings,
system version information).
5.30 m
15 m
D H H.S V.S GPS 已定位
17.1 m 0.0 m/s 0.0 m/s P0.0° R0.0° Y0.0°
Center Down
5.30 m
18
03:58:45
2.4G 77%
Connected
Pose Mode
16.4 Remote control settings
16.2 Forward obstacle avoidance system
19
Walkera All Rights Reserved
R400
Quick Start Guide
Ground
Ground
Turn on automatic obstacle avoidance operation
Obstacle prompt, obstacle distance display
First turn the flight mode switch "S" on the left side of the remote control to the midpoint (GPS mode) position, and
then press the red arrow as shown in the figure to switch the obstacle avoidance function. After opening, the APP
interface will display the obstacle prompt icon and the obstacle distance .
Hover state in GPS mode: Obstacles can be avoided in front.
Flight status in GPS mode: Obstacle avoidance ahead.
Auto avoidance
Less than 3m
Less than 3m Stop advance
16.3 Compass calibration
Please calibrate the compass if circling or deflection occurs during flight. (The motor must be locked and
the aircraft red and blue LEDs are off).
Please calibrate the compass outdoors in an open area away from strong electromagnetic field interference.
The compass calibration method is as follows:
APP opens the compass calibration path: → → "Sensor" → "Calibrate Compass" → "Calibrate"
2)Place the aircraft flat, then rotate it 720 degrees in the
horizontal direction, the aircraft indicator will light up, and
then place the aircraft in a horizontal position.
1)First, open the calibration compass in the APP settings and
click "Calibrate" or leave the aircraft head vertically upward
for more than 6 seconds. The aircraft indicator flashes quickly,
then rotate the aircraft 720° in the horizontal direction, and
the aircraft indicator turns off.
If the calibration is not successful, please re-calibrate according to the above method.
Nose up

1) Short press the menu button
" ".
2) Short press the confirmation
button " ".
3) Move the 4D small joystick
down once.
16.4.1 Joystick mode switch
16.4.2 Joystick and dial calibration
16.4.3 System language switch
The operation is as follows
The operation is as follows
The remote control joystick mode and joystick calibration have been set at the factory.
If you need to switch and calibrate, please refer to the following methods;
Be sure to turn off the power of the aircraft or lock the motors before operation.
The remote control system language supports Chinese and English, which can be switched in the setting menu.
20
Walkera All Rights Reserved
R400
Quick Start Guide
5) Repeat the operation several
times for all mechanical stroke
ranges of the joystick and dial
from the smallest to the largest.
4) Short press the confirmation
button" ", and short press
the menu button to return to
the main page.
4) Short press the confirmation
button " " to enter the
calibration mode.
6) Short press the confirmation
button " ", the screen
displays "Success", indicating
that the calibration has been
successful.
7) If the screen displays "Fail" and
a buzzer sounds, it means the
calibration has failed. Please
short press the confirmation button
" " to recalibrate.
1) Short press the menu button
" ".
2) Short press the confirmation
button " ".
3) Move the 4D small joystick
down twice.
2) Move the 4D small joystick
down twice.
3) Short press the confirmation
button " ".
1) Short press the menu button
" ".
4) Short press the confirmation
button " " , the system
language will switch between
Chinese and English.
The operation is as follows
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