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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Walkera All Rights Reserved
R400
Quick Start Guide
Contents
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3
9
9-10
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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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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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Walkera All Rights Reserved
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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Walkera All Rights Reserved
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
22.2V󽘜7000mAh,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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Walkera All Rights Reserved
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.
18
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
18
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