RadioLink AT9S PRO User manual

AT9S Pro
（DSSS&FHSS&CRSF）
Quick Start Guide
（Helicopter/Fixed-wing/Glider/Multirotor/Car/Boat/Robot）
10/12 channels transmitter
CE FCC RoHS

1
Safet
y
Precautions
Packing List
Safety Precautions
Never operate your model during adverse weather conditions. Poor visibility can cause
disorientation and loss of control of your model.
Never use this product in a crowded and illegal area and strictly comply with the local
regulations.
Always ensure the trim levers at 0 and battery properly charged before connecting the
receiver.
Always check all servos and their connections prior to each run.
Multi-rotor must check whether the motor rotation direction is normal.
Always be sure about turning off the receiver before the transmitter.
The AT9S Pro transmitter cannot be restored to factory settings, but the currently used
Please strictly abide by local laws and regulations and use it safely
model can be reset in "BASIC MENU"-"MODEL TYPE".
!
This product is not a toy and is NOT suitable for children under the age of 14. Adults should
keep the product out of the reach of children and exercise caution when operating this product in
the presence of children.
AT9S Pro Transmitter×1 R9DS Receiver×1 Lanyard×1
Packing Box×1 Quick Start Guide×1 THR Return Accessories×1

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Specifications
AT9S Pro Transmitter
Size
183*100*193mm (7.2”*3.9”*7.6”）
Weight
0.88kg
Channel Quantity
10/12 (all twelve channels can be programmed)
Control Range
①DSSS&FHSS: 3400 meters in the air (Maximum range is tested in an
unobstructed area free of interference)
②CRSF: Depends on the RX and TX from BLACKSHEEP
Operating Current
①DSSS&FHSS: < 90mA@12V
②CRSF: Depends on the transmission power selected
Operating Voltage
7.4～18.0V (8pcs AA battery, a 2S-4S LiPo or 18650 Lithium battery)
ACPR
>38dbm
Frequencies Band
2.4GHz ISM band (2400MHz~2483.5MHz)
Modulation Mode
QPSK
Bandwidth
5.0MHz
Spread Spectrum Mode
DSSS&FHSS/CRSF
Storage Model Quantity
15
Battery Box Size
116*36*32mm (L*W*H=4.57"*1.42"*1.26")
Low Voltage Alarm
Support. Voltage alarm can be customized
Signal Output
PWM/SBUS/PPM/CRSF (The current output signal depends on the
signal supported by the paired receiver. R9DS can output SBUS and
PWM signals at the same time by default)
Simulator Mode
Yes, with the radio frequency off to save battery power
Screen
2.8 inches 16 colorful screens, 240*320 pixels
Operating Temperature
-20° to 85° C (-4° to 185° F)
Adaptable Models
Rotary Wing/Fixed-wing/Glider/Multicopter/Car/Boat/Robot
Compatible Receivers
R9DS (Standard), R12DS, R12DSM, R6DS, R6DSM
CRSF- Receivers from BLACKSHEEP
R9DS Receiver
Size
43*24*15mm (1.69” *0.94” * 0.59”)
Weight
10.5g
Antenna Length
145mm (5.71")
Channel Quantity
9 channels for PWM signal output;
10 channels for SBUS&PWM signal output
Control Range
3400 meters in the air (Maximum range tested in unobstructed areas
free of interference and may vary depending on local regulations)
Operating Current
38~45mA@5V
Operating Voltage
3.6-12V
Signal Output
SBUS&PWM
Section Precision
4096, 0.25us per section
Compatible extended
telemetry module
Connect PRM-01 for model voltage telemetry.
Connect PRM-03 and flight controller crossflight, PIXHAWK, Mini Pix,
and TURBO PiX, APM for OSD information telemetry
Compatible
Transmitters
AT10II/AT10/AT9S Pro/AT9S/AT9

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Transmitter AT9S Pro
Note: The picture above takes the left-hand throttle as an example.
-：GND
-NC ：No Output
-VCC：Voltage Output(7.4-18V)
-OUT：Signal Out:
PPM/SBUS/CRSF
-IN ：RSSI Signal Input

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Basic Operations
Note ：For normal functions, short press the PUSH button to confirm, but when modifying the
"MODEL SEL" and "MODE TYPE”, long press the PUSH button for 1 second to confirm.
Aileron/Elevator/Throttle/Rudder Stick controls 1 to 4 channels by default. Set STK-MODE
in PARAMETER menu. If you set the STK-MODE to “-” and then the AUX-CH in BASIC
MENU, you can assign other switches to control channel 1 to channel 4.
Two VR knob switches and two VR slider switches on the back meet the needs of pan/tilt
control, and the functions of these switches can be customized.
AT9S Pro has 4 two-way switches, 3 three-way switches and a reset switch. Function of all
Basic Settings
1. Language Settings: Long press the MODE button to enter the
menu, if the language is displayed as Chinese, please rotate the
PUSH button to move the cursor to PARAMETER(系统设置), short
press the PUSH button to enter the setting interface, and change
the language from Chinese (语言选择:简体) to English.
2. Alarm Settings: The low voltage alarm of the transmitter,
receiver, model battery and RSSI(Received Signal Strength
Indicator) alarm can be customized on AT9S Pro. The factory lo
switches can be customized. For details, please refer to the detailed manual of AT9S Pro
www.radiolink.com/at9spro_manual.
w

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R9DS Receiver
Radio Low Powe
voltage alarm is 8.6V for transmitter; 4.0V for receiver; 11.1V for model battery. When the
voltage is lower than the set alarm value, the transmitter will send out an alarm (See pictures
below), and the low battery alarm can be set according to the actual voltage of the battery to
avoid battery over-discharge.
Setting steps: BASIC menu - PARAMETER - TX-ALARM/RX-ALARM/EXT-ALARM. (Voltage
alarm reference: 2S lithium battery -7.4V; 3S lithium battery -11.1V; 4S lithium battery -14.8V.)
The RSSI alarm is turned off by default. The alarm value can be customized. When the signal
strength is lower than the set alarm value, the transmitter will send out an alarm (See picture
below). Setting steps: BASIC menu - SYSTEM - RSSI ALM.
r Model Low PoweReceiver Low Power r RSSI Low Alarm
Working Modes
R9DS, with 2.4G DSSS&FHSS spread spectrum technology, is a 9-channel receiver when
working with PWM signal output (red LED) or a 10-channel receiver when with SBUS&PWM
signal output (purple/blue LED).
1. PWM Signal Mode：Red LED indicates PWM signal output, 9 channels totally.

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2. SBUS&PWM Signal Mode: Blue/purple LED indicates SBUS&PWM signal output at the same
time with 10 channels totally. CH9 outputs SBUS signal while the original CH1 outputs CH3
PWM signal and original CH2 to CH6 output CH6 to CH10 PWM signal at the same time.
Switch Signal Mode：Short press binding button (ID SET) twice within 1 second, the working
mode will be switched.
Receiver Mode
Channel Settings
AT9S Pro is a 12-channel transmitter, but the channel is
selected as 10 channels by default (See the right picture).
When using the standard packed R9DS receiver, there is no
need to modify the settings; but when using R12DS or
R12DSM receiver, channel of AT9S Pro should be selected as
12channel, 12CH. For the channel selection of AT9S Pro when using different receivers , please
refer to the figure below:
l AT9S Pro CH-SELECT Receiver Model AT9S Pro CH-SELECT
R9DS 10CH R12DS 12CH
R6DS 10CH R12DSM 12CH
R6DSM 10CH

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Setting steps: BASIC menu - SYSTEM - CH-SELECT.
Note: If the channel of AT9S Pro is selected incorrectly, the servo may vibrate all the time.
Binding Steps:
1. Put the transmitter and the receiver close to each other (about 30 centimeters).
2. Power on AT9S Pro and R9DS, the LED of R9DS will be on.
3. There is a black binding button (ID SET) on the side of receiver. Press the button for more than
one second and release, the RED (by default, could be Purple for SBUS&PWM signal output)
LED will flash, meaning binding process is ongoing.
4. When the LED stops flashing and is always on, binding is complete. There will be a signal
tower shown on top of the LCD screen of the transmitter. If not succeed, the LED will keep
flashing slowly to notify, repeat the above steps.
Note：Since RadioLink radio control systems are not open sourced, RadioLink transmitters are
ONLY compatible with RadioLink receivers. After connecting TBS Crossfire module to AT9S Pro,
the connection to TBS Crossfire receiver is supported
Binding
AT9S Pro and R9DS have already finished binding by default. Turn on AT9S Pro and R9DS, the
signal tower will be displayed on the top of the screen (See the right
picture), which means the transmitter and receiver have finished binding.
If you purchase a new R9DS receiver separately, you need to bind the
receiver to the transmitter. Each receiver has an individual ID code. When
the binding is done, the ID code will be stored in the transmitter and there's no need to rebind.
.
Installment of Antenna
1. Receiver Antenna Installment
(1) Please test RSSI (Received Signal Strength Indicator) before operating models. For
methods on how to test it, please refer to https://www.radiolink.com/newsinfo/477894.html.
(2) If the antenna of the receiver is damaged, replace it with a new antenna or receiver in time.
(3) Keep antennas as straight as possible, or the effective control range will reduce.
(4) Big models may contain metal parts that influence signal emission. In this case, antenna
should be positioned at one side of the model to ensure the best signal status in all
circumstances.

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(5) Antennas should be kept away from metal conductor and carbon fiber at least half inch
away and no over bending.
(6) Keep antennas away from motor, ESC, or other possible interference sources.
(7) Receiver contains some electronic components of high-precision. Be careful to avoid strong
vibration and high temperature.
which is beneficial to flying farther (See Picture 2 below); if the antenna is horizontal and
parallel to the ground, the signal mainly diverges in the vertical direction, which is beneficial
to fly higher (See Picture 3 below), so it is best to place the transmitter antenna
perpendicular to the connection line between the remote control and the aircraft during
flight.
(3) During the flight, please ensure that there is no obstruction between the transmitter antenn
directly at the model when flying as this may possibly decrease the receiver signal (See
Picture 1 below).
2. Transmitter Antenna Orientation
(1) The transmitter antenna orientation is adjustable. Make sure the antenna never points
(2) If the antenna is upright, the antenna signal mainly diverges in the horizontal direction,
a
and the receiver antenna to maximize the communication distance.
Picture 1 Picture 2 Picture 3
RSSI Testing
RSSI stands for Received Signal Strength Indicator. Before flight, always remember to do the
RSSI testing to avoid the possible unexpected signal loss.
1. Power on transmitter and receiver, keep them with the
distance of about 30 centimeters and both antennas straight
(See the right picture).
2. Enter the basic menu. Rotate the PUSH button to select

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RECEIVE and press PUSH button to enter and check the RSSI value. RSSI value between 0 to
-30dBm is normal when the transmitter keeps about 30 centimeters distance from the receiver.
The RSSI value is closer to 0, the signal is stronger.
Real-time Built-in Telemetry
R9DS receiver integrates telemetry of signal strength and receiver voltage by default. It can also
realize the telemetry of model battery voltage or flight controller and GPS information when used
with RadioLink PRM-01 or PRM-03 telemetry module, and the telemetry information can be
displayed on the screen of AT9S Pro or AT10II transmitter.
Flight controller and GPS information telemetry: When connecting R9DS to telemetry
module PRM-03 and flight controller, more information will be displayed on the screen of AT9S
Pro, including the model battery voltage, speed, climb, throttle, longitude, latitude, altitude, GPS,
RSSI, flight mode, yaw, roll, pitch, and distance (See picture below).
Note: PRM-03 is sold separately. PRM-03 only supports R9DS or R12DS receiver, and it works
with flight controller crossflight, PIXHAWK, Mini Pix, TURBO PiX or APM
Model battery voltage telemetry: When connecting R9DS to telemetry module PRM-01, the
model voltage will be displayed on the screen of AT9S Pro (See picture below).
Note: PRM-01 is sold separately. PRM-01 only supports R9DS or R12DS receiver.
.

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Multiple Function Port
AT9S Pro can be connected to many devices via simulator port on the back. Enter BASIC
menu-SYSTEM-OUT and select the appropriate signal output. For the connected devices and
the corresponding signal output, please refer to the figure below:
OU
Note:
1. Scan the QR code on the last page of the Quick Start Guide to view detailed video tutorials for
connecting AT9S Pro to all the above devices.
2. TBS Crossfire connect cable and wireless trainer cable are sold separately. Please refer to the
official website www.radiolink.com for more information and purchase.
T
Signal Output Matching Device
PPM Head track, trainer cable, simulator or any other devices
supports PPM input
SBUS Devices supports PPM input
CRSF1 TBS Crossfire, with baud rate 115200
CRSF4 TBS Crossfire, with baud rate 416000
ELRS1 ELRS module, with baud rate 115200
ELRS4 ELRS module, with baud rate 416000

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Technical Support Here
Contact RadioLink RL AT9S Pro User Manual AT9S Pro Tutorials
via Facebook Messenger
If the above information cannot solve your problem, you can also send emails to our technical
support: [e-mail]
This content is subject to change. Download the manual of AT9S Pro from
https://www.radiolink.com/at9spro_manual
Thank you again for choosing RadioLink product.