SIYI UniRC 10 Pro Handheld Ground Station User Manual

1. 10.1 inch Big Screen, No Detail Missed
UniRC 10 Pro is standard equipped with a 10.1-inch 1920*1200 HD oversized screen, providing robust support for multi-strean video pulling and detailed operational data display in professional unmanned equipment control. With 2000 nits ultra-high brightness, no more ‘cupping your hand’ to see, no detail missed!

2. Triple-Frequency, Stable Mastery
UniRC 10 Pro features triple-frequency redundancy to ensure operational stability in professional scenarios. It can be flexibly configured to operate in any single-band or dual-band combination based on actual environmental conditions, interference levels, and performance requirements. Under the same conditions, it delivers enhanced anti-interference capability, communication quality, and transmission range.

3. 27 Physical Channels, Unmatched Control
UniRC 10 Pro integrates 27 customizable physical channels, featuring new designs such as knob switches and dual mini-sticks to provide greater control possibilities for professional unmanned equipments. Such as multi-payload equipment control and robotic arm manipulation.

4. Upgraded Dual Mini-Sticks, Precision Multi-Payload Control
UniRC 10 Pro features upgraded dual Hall-effect mini-sticks, making it better suited for multi-payload control in professional scenarios involving drones, UGVs, USVs and intelligent robots. The independently designed dual mini-sticks support parallel twohanded operation. For example, the left mini-stick can control pod angle and press-to-capture images, while the right mini-stick adjusts searchlight angle, significantly enhancing control efficiency and precision.

5. Hot-Swappable Battery, Support In-Use Charging, End Your Endurance Anxiety!
UniRC 10 Pro adopts a dual-battery architecture (internal & external) combined with hot-swappable external battery technology, effectively addressing the most critical challenges of mobile equipment: “endurance anxiety” and “inoperability during charging.” This significantly enhances operational continuity in field and on-site scenarios. Support PD 65W in-use charging (with dual-battery combined), and the software interface displays the dual battery level to help you quickly assess the power status.
(The internal battery can be charged via the external battery.)

6. IP54 Protection, All-Weather Operation
Enables professional unmanned equipment to replace manual labor in hazardous environments for precision operations, delivering stable control across scenarios including site inspection, emergency response, firefighting, and marine surveying.

7. Extensive External Interfaces
Integrates various hardware interfaces such as RJ45 Ethernet, HDMI, USB-A, SIM, TF, Type-C and 3.5mm audio port, data transmission/SDK interfaces encompass serial port, bluetooth, type-c and UDP. Redefining the boundaries of control through limitless possibilities! Connect to screens with one touch through HDMI, integrate PPM protocol devices (like head trackers)… Embrace Endless Possibilities!

8. “Ready-To-Use” SIYI Product Ecosystem, Support Rapid Integration of the Mavlink-Based Products
Leveraging the robust mixed-source open ecosystem, the UniRC 10 Pro can seamlessly integrates with gimbals, flight controllers, propulsion Systems, and third-party payloads compatible with SIYI ecosystem or Mavlink protocol. Significantly reducing integration barriers.

1.2 Component Description

1.2.1 Product Overview

1.2.2 Interface Definitions

1.2.3 Button, Switch Types, and Channel Definitions

Channel No.	Physical Channel Type	Default Physical Switch	Remarks
1	Aileron joystick	J1
2	Elevator joystick (Mode 2)	J2
3	Throttle joystick (Mode 2)	J3
4	Rudder joystick	J4
5	3-Position Switch (Top Left)	SA
6	3-Position Switch (Top Right)	SB
7	Lever Switch 1 (Top Left)	SC
8	Lever Switch 2 (Top Left)	SD
9	Lever Switch 1 (Top Right)	SE
10	Lever Switch 2 (Top Right)	SF	PWM1
11	Function Button 1 (Left)	L1	PWM2
12	Function Button 2 (Left)	L2	PWM3
13	Function Button 3 (Left)	L3	PWM4
14	Function Button 1 (Right)	R1	PWM5
15	Function Button 2 (Right)	R2	Spotlight / Gimbal Pitch Control
16	Function Button 3 (Right)	R3	Spotlight / Gimbal Re-Centering
—	Right Mini Joystick – Vertical	J5
—	Right Mini Joystick – Horizontal	J6
—	Left Mini Joystick – Vertical	J7
—	Left Mini Joystick – Horizontal	J8
—	Left Knob	LK
—	Right Knob	RK
—	Left Dial	LD
—	Right Dial	RD
—	Switch (Top Left)	S1
—	Switch (Top Right)	S2
—	Switch (Back-Left)	S3
—	Switch (Back-Right)	S4
—	‘H’ Button	M1
—	Press the Left Joystick	LS
—	Press the Right Joystick	RS
—	PPM Input Channel 1	PM1
—	PPM Input Channel 2	PM2
	PPM Input Channel 3	PM3
	PPM Input Channel 4	PM4
	PPM Input Channel 5	PM5
	PPM Input Channel 6	PM6
	PPM Input Channel 7	PM7
	PPM Input Channel 8	PM8

1.3 Technical Specifications

General Performance

Typical Operating Scenarios Communication Range	Suburban missions at a flight altitude of 120 meters with low obstructions and moderate interference: 20–25 km communication range Maritime missions at a flight altitude of 120 meters with unobstructed line of sight and low interference: 35–45 km communication range
Image Transmission Operating Frequenc	2.4 GHz / 5.8 GHz / … Note: Operation in the third frequency bands requires full device certification. As laws and regulations vary across different countries and regions, please ensure compliance with local statutory requirements.
Operating Bandwidth of Video Transmission	10M / 20M
Physical Channels	13 Buttons, 6 3-Position Switches, 2 Main Joysticks, 2 Mini Joysticks, 2 Dials, 2 Knobs
Operating Temperature	（-20℃ – 55℃）
Storage Temperature	(-30℃ to 45℃) (Short-term storage: ≤ 1 month) (-10℃ to 35℃) (Mid-term storage: ≤ 3 months) (-10℃ to 30℃) (Long-term storage: ≤ 1 year)

Ground Control Station (GCS)

Screen Size	10.1 inch
Resolution	Resolution 1920*1200
Brightness	2000nit
Screen Refresh Rate	60fps
Adaptive Brightness	Support
External Battery Capacity	13400 mAh
Internal Battery Capacity	6700 mAh
System Power Consumption	34W
IP Level	IP54
Dimensions	328.2222.5101.5 mm
Weight	2600g (Include belly rest bracket)
Endurance	Approximately 5h (External + Internal Battery)
Antennas	2* Built-in directional antennas 2* External omnidirectional antennas
Wi-Fi	WiFi 5
Wi-Fi Operating Frequency	2.4/5.8 GHz
Bluetooth	BT 5.0
Bluetooth Operating Frequency	2.4000 GHz – 2.4835 GHz
System	Android 13
Storage	4GB + 64GB (Expandable)
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Charging Method	Standard fast charging, support up to 65W fast charging When powered off: With external battery connected: Charging power 65W (internal battery 25W, external battery 40W) Without external battery connected: Charging power 40W (internal battery 40W) When powered on: With external battery connected: Charging power 65W (internal battery 40W, external battery 25W) Without external battery connected: Charging power 40W (internal battery 40W)
Charging Time	Without external battery: 1.5h With external battery: 4h
External Interfaces	USB-A (defaults to OTG interface, can be set as a reserved serial port interface) Ethernet port (RJ45) HDMI Type-C (charging, file transfer, firmware upgrade) TF card slot SIM card slot
Data Link Interface	UART*2, UDP, Bluetooth (Data Link), Type-C
Audio	3.5mm audio jack, speaker, buzzer

Air Unit

Remote Signal Output	16-channel S.Bus 5-channel PWM
Function Interfaces	(GH1.25 6Pin) Data Link: UART2 (GH1.25 3Pin) Video & Data: Ethernet Port2 (GH1.25 8Pin) CAN1 (GH1.25 4Pin) PWM1 (GH1.25 6Pin) Power Input: XT30 Firmware Upgrade: TYPE-C
Antennas	Quick-release antennas (MMCX)2 Detachable antennas (IPEX)2
Power Supply Voltage	3S-18S
Dimensions (excluding antennas)	8542.426.9mm
Weight (excluding antennas)	200g ± 5g
Average Power Consumption:	7 W

1.4 Item List

Standard Package

UniRC 10 Pro

1 x UniRC 10 Pro Ground Station (Include Belly Rest Bracket)
1 x UniRC 10 Pro External Battery

1 x UniRC 10 Pro Air Unit
4 x 1.4 & 2.4G Omnidirectional Antennas
2 x 5G Omnidirectional Antennas

1 x UniRC 10 Pro Shoulder Strap

1 x 65W PD Fast Charger (Type-C, US Standard)
1 x 100W PD Fast-Charging Cable (USB-C to USB-C)
1 x Type-C to USB-A Adapter

2x UniRC 10 Pro Air Unit Data Cable
1x UniRC 10 Pro Air Unit S.BUS Cable
1x UniRC 10 Pro Air Unit CAN Cable
1x UniRC 10 Pro PWM Cable
1x Network Cable (RJ45 Connectors on Both Ends)
1x XT30 Female Power Cable

1.5 Status Indicator Definitions

Status indicators on the SIYI link ground unit and air unit use different colors and flashing frequencies to represent different meanings.

1.5.1 Ground Unit Indicator Definitions

Solid red: No communication between ground and air unit
Fast red flashing: Pairing in progress
Slow red flashing: Firmware mismatch
Red flashing three times: Link initialization failed
Red flashing four times: Stick calibration required on ground unit
Alternating red and green flashing: Android system unexpectedly shut down
Alternating red, green, and yellow slow flashing: Video transmission starting or the image transmission firmware is being upgraded
Alternating red, green, and yellow flashing at intervals: Upgrade the air unit firmware
Slow yellow flashing: Abnormal power voltage on ground unit
Yellow flashing twice: Bluetooth not detected on ground unit
Yellow-red: Ground unit temperature level 1 warning
Yellow-red-red: Ground unit temperature level 2 warning
Yellow-red-red-red: Ground unit temperature level 3 warning
Green solid or flashing: The faster the flash, the weaker the signal strength
Solid green: 100% valid packet rate
Green flashing (1Hz): 99%–95% valid packet rate
Green flashing (interval 3/5 seconds): 75%–50% valid packet rate
Green flashing (interval 3/10 seconds): 50%–25% valid packet rate
Green flashing (interval 1/25 seconds): Valid packet rate less than 25%
Green-red: Air unit temperature level 1 warning
Green-red-red: Air unit temperature level 2 warning
Green-red-red-red: Air unit temperature level 3 warning

1.5.2 Air Unit Indicator Definitions

Solid red: No communication between ground and air unit
Fast red flashing: Pairing in progress
Slow red flashing: Firmware mismatch
Red flashing three times: Link initialization failed
Alternating red, green, and yellow slow flashing: Video transmission starting or the image transmission firmware is being upgraded
Yellow flashing: Voltage warning (input voltage below 12V)
Green solid or flashing: The faster the flash, the weaker the signal strength
Solid green: 100% valid packet rate
Green flashing (1Hz): 99%–95% valid packet rate
Green flashing (interval 3/5 seconds): 75%–50% valid packet rate
Green flashing (interval 3/10 seconds): 50%–25% valid packet rate
Green flashing (interval 1/25 seconds): Valid packet rate less than 25%
Alternating green and red flashing: Wireless pairing initiated (triggered by powering on three times)
Green-red: Air unit temperature level 1 warning
Green-red-red: Air unit temperature level 2 warning
Green-red-red-red: Air unit temperature level 3 warning

1.5.3 Dual-Control Mode Indicator Definitions

In dual-control mode of one aircraft, when the master control allows the slave control to take command, both the master and slave controls flash simultaneously.
In remote control relay mode, the end with control authority has an indicator light that flashes, while the end without control authority remains steadily lit.
In the above scenarios, the flashing frequency is set at 5-second intervals, with the indicator light flashing three times.

Chapter 2 Before Use

2.1 Ground Unit

2.1.1 Power On and Off

Power On:
When powered off, press the power button briefly for about 1 second until the indicator light turns on. Then press and hold the power button for about 2 seconds until the screen lights up. The device will then power on and enter working mode.
Power Off:
When powered on, press and hold the power button for about 2 seconds. A system popup will appear—tap the power-off icon to shut down the ground unit.

Caution
Forced Shutdown: When powered on, press and hold the power button for approximately 8 seconds to forcibly shut down the ground unit.

Tip
Screen Off: When powered on, press the power button briefly to turn off the screen and enter power-saving mode.

2.1.2 Charging

The UniRC 10 Pro handheld ground station supports charging in both power-on and power-off states using the original 65W PD fast charger.
When charging while powered on, if the internal temperature becomes too high, the ground station will automatically reduce the charging power until the temperature drops.

Steps for Use

Use a Type-C fast charging cable to connect the ground station to the original 65W PD fast charger.
If the battery indicator LEDs flash in sequence, it means charging is in progress.
When all four battery indicator LEDs remain steadily lit, charging is complete.

2.1.3 Charging Indicator Definitions

Description：●Indicates ON；○Indicates OFF；⊙Indicates Flashing

	First Indicator	Second Indicator	Third Indicator	Fourth Indicator
0-25%	⊙	○	○	○
26%-50%	●	⊙	○	○
51%-75%	●	●	⊙	○
76%-99%	●	●	●	⊙
100%	●	●	●	●

2.1.4 Switching System Language

SIYI handheld ground station’s Android system supports almost all available languages, which can be easily switched in the system settings menu.

Note
The default language of the Android system upon delivery is Simplified Chinese.

Step
1. Go to the Android system settings menu.

2. Scroll down the page to find the “System (Languages, gestures, time, backup)” menu and enter it.

3. Then enter the “Languages & input” menu, select “Languages”, and tap “Add a language”.

4. Take American English as an example: scroll down the page to find “English”, then select “United States”. The page will automatically return to the “Languages & preferences” screen.

5. Drag the newly added “English (United States)” language bar upward to the first position. The system language will automatically switch to American English.

2.2 Important Instructions for Enhancing Communication Range and Video Smoothness

To maximize the communication range and video smoothness of the UniRC 10 Pro link, please read this instruction carefully and install the antennas and configure the link according to the guidelines.

2.2.1 Usage Precautions

Do not simultaneously use the UniGCS app and RTSP streaming software such as QGroundControl to pull video streams, as background streaming also consumes image transmission bandwidth and affects range.
Only power the Air Unit with a propulsion battery interface, since HD image transmission requires high current, instant current response, and low ripple from the power supply. Do not modify the Air Unit power supply privately, as it may affect link stability and transmission range.

2.2.2 Installation and Placement of the Standard Omnidirectional Antenna on the Ground Unit

The SMA antenna connector must be tightened securely.
The antenna should be placed vertically upward relative to the ground unit control panel, keeping the flat side of the antenna always facing the aircraft. Antennas must not be stacked or crossed. Please refer to the following illustration:

2.2.3 Installation and Placement of the Standard Omnidirectional Antenna on the Air Unit

The SMA antenna connector must be tightened securely.
The MMCX and IPEX antenna connectors must be firmly plugged in.
On multi-rotor drones, the air unit’s standard omnidirectional antenna should be mounted vertically downward relative to the aircraft frame; on fixed-wing aircraft, the antenna can be mounted vertically upward. During flight, try to keep the flat side of the antenna facing the ground unit.
The antenna feeder cable should be routed away from ESCs, motors, and other high-current power devices with strong electromagnetic interference.
The air unit’s standard feeder cables must not be crossed. The antenna body, feeder cable, and SMA connector should avoid direct contact with metal or carbon fiber structural parts and maintain at least a 10mm gap.
The four antennas on the air unit should be spaced apart, with at least 50mm between them. During flight, avoid any obstacles blocking communication between the aircraft and ground unit.
Do not pull forcefully or bend excessively the antenna feeder cables and connectors on both ends, as this may cause antenna damage.
When adjusting antenna angles or orientation, try to bend only the middle section of the feeder cable.

Note
As shown in the figure below, for small to medium multi-rotor drones, the air unit antenna should be positioned vertically downward along the drone arm to keep the flat side of the antenna facing the direction of the ground unit.

As shown in the figure below, for large multi-rotor drones, the air unit antenna should be mounted vertically downward relative to the motor mount, ensuring that the flat side of the antenna faces directly toward the ground unit.

As shown in the figure below, for fixed-wing aircraft, the air unit antenna can be mounted vertically upward on the wing or vertical tail, while also keeping the flat side of the antenna facing toward the ground unit as much as possible.

2.2.4 Necessary Information Required Before Requesting Factory

1. Direct symptoms that make you feel the communication distance is insufficient:

Signal loss: image loss, ground unit status indicator light shows red
Image loss only (ground unit status indicator light shows green)

2. Flight distance and flight altitude of the drone when the above symptoms are observed
3. Flight test environment (provide photos or videos showing the drone’s flight direction)
4. Check communication-related software information:

Image Transmission mode and frequency band

Firmware versions of the ground unit and the air unit

UniGCS Application Version

5. Check hardware configurations related to communication

Type, installation angle, and usage angle of the ground unit antenna (provide photos)
Type and installation angle of the air unit antenna (provide photos)
Power supply method and voltage of the air unit; has the power module been modified?

6. If the problem persists after checking the above, please provide a flight test recording of the link status screen in the UniGCS application near the maximum communication range.

Chapter 3 UniGCS Application

Parameter settings through the UniGCS application.

3.1 Flight Interface and Map Interface

3.2 Gimbal Settings

3.2.1 Connecting the Gimbal

After connecting the gimbal to the Air Unit’s network port, select the corresponding SIYI gimbal in either Camera A or Camera B.

You can also choose to manually enter the RTSP address to connect.

Note:
When connecting two gimbals simultaneously, you need to change the IP address of one gimbal to a non-.25 ending. When connecting, select manual RTSP address input to establish the connection.

3.3 Remote Controller Settings

3.3.1 Throttle Stick Mode

The UniRC 10 Pro supports switching between “Mode 1 (Japanese style)”, “Mode 2 (American style)”, and “Mode 3 (Chinese style)”.

3.3.2 RC Calibration

The remote controller calibration function helps users calibrate the center position and maximum limits of the handheld ground station’s joysticks and dials. Regular joystick calibration helps maintain accurate output from the joystick channels.

3.3.2.1 Joystick Calibration Steps

1. Before starting joystick calibration, ensure the handheld ground station’s left and right joysticks are naturally at rest, without any displacement caused by external forces.
2. In the “Joystick Calibration” menu, click “Calibrate Now” to enter the following interface:

3. Follow the prompts: if the joystick is naturally at rest but the joystick channel output value is not zero, it indicates the neutral point of the joystick has shifted. At this time, do not touch the joystick and wait for the neutral point calibration to complete.

4. When the following prompt appears, it means the neutral point calibration is completed, and you can proceed to calibrate the maximum limits.

Follow the on-screen instructions to push each joystick sequentially to the maximum limit in all directions.

Up: (0, 100)
Down: (0, -100)
Left: (-100, 0)
Right: (100, 0)

Then click “To Finish”.

5. The “Joystick Calibration” menu will display “Succeed”

Note:
If the joystick does not return to the center position when naturally at rest (channel output value is not 0), or if pushing the joystick to its limits does not produce the maximum or minimum output values (-100, 100), calibration should be performed immediately.

3.3.2.2 Dial Calibration Steps

1. Before calibrating the dial, ensure that the left and right dials on the handheld ground station are naturally at rest, without any displacement caused by external force.
2. In the “Dial Calibration” menu, click “Calibration Now” to enter the following interface:

3. Follow the prompts: if the dial is naturally at rest but the dial channel output value is not 0, it indicates that the dial’s neutral point has shifted. At this time, do not touch the dial and wait for the neutral point calibration to complete.
4. When the prompt as shown below appears, it means the neutral point calibration is complete. Next, calibrate the maximum limits.

Follow the on-screen instructions to move each dial to its maximum limit positions in all directions one by one.

Left: -100
Right: 100

5. The “Dial Calibration” menu will return to the initial screen, indicating the calibration is complete.

3.3.3 DATA LINK

The Data Transmission Settings menu allows users to identify the handheld ground station device ID, configure the data transmission connection mode, and set specific serial port baud rates.

3.3.3.1 About Data Transmission Settings

Device ID: Displays the serial number of the Bluetooth module integrated within the handheld ground station. During Bluetooth pairing, this serial number is recognized as the corresponding Bluetooth name. This serial number is unique for each ground station unit.
Datalink1: The data transmission connection mode for the device connected to the Air Unit TELEM 1 port.
Baud Rate1: Should be set to match the baud rate of the device connected to the Air Unit TELEM 1 port.
Datalink2: The data transmission connection mode for the device connected to the Air Unit TELEM 2 port.
Baud Rate2: Should be set to match the baud rate of the device connected to the Air Unit TELEM 2 port.

3.3.3.2 Connection

The UniRC 10 Pro handheld ground station supports the following data transmission connection modes: Bluetooth, Upgrade, UDP, UART1, UART2, and Close.

UART Serial Port: Data transmission communication is conducted via the built-in UART serial port of the ground station (developers can refer to the data transmission SDK documentation in Chapter 6 of this manual to develop support for this function on their own ground stations).
Bluetooth: Data transmission communication is carried out via the built-in Bluetooth wireless connection of the ground station (supports the majority of ground station software and also supports data transmission communication with external devices such as Windows-based ground station software).
Upgrade: Establishes data transmission communication with external devices, such as Windows ground station software, through the Type-C
interface located at the bottom of the handheld ground station.
UDP: Data transmission communication is conducted via UDP network protocol connection.
Close: Turn off the current data transmission function.

3.3.3.3 Serial Port Baud Rate

Please manually select the matching serial port baud rate setting.

Note:
Before changing the baud rate, please ensure that the Ground Control Station (GCS) and Air Unit have successfully paired. Otherwise, the setting will not take effect.

3.3.4 CHANNELS

The CHANNELS feature allows users to configure the servo travel range, neutral position, servo direction reversal, and channel mapping for each channel on the handheld ground station.

3.3.4.1 Servo Travel Volume

The UniRC 10 Pro handheld ground station has a default servo travel range from 1050 to 1950.

Select the target channel and enter the desired travel range value to successfully modify it.
The default neutral position (Middle) for the travel range is 1500.
Select the target channel and enter the desired neutral point (Middle) offset value to successfully update it.

Note:
The neutral position (Middle) offset range is ±500.
For example, to set the neutral point (Middle) to 1700, set the neutral offset to +200. To set the neutral point (Middle) to 1300, set the neutral offset to -200.

3.3.4.2 Servo Reversal

The servo reversal function is used to invert the output direction of the channel’s travel range.

Select the target channel, then click the corresponding servo direction toggle switch to successfully set the servo to normal or reversed direction.

3.3.4.3 channel assign

The UniRC 10 Pro handheld ground station supports a total of 31 physical channels and 16 communication channels. It allows users to freely define the mapping relationships between physical buttons, switches, joysticks, and communication channels through the channel mapping function.

Select the target channel and click the channel mapping button. A switch list will pop up—choose the desired switch to successfully complete the connection.

3.3.5 LINK STATUS

Displays real-time link status information to intuitively show the quality of the wireless communication.

Link Status
Loss Rate:
The number of data packets that fail to return to the ground station per second.
Valid Package:
The number of data packets successfully received by the ground station per second.
Data Upload:
The amount of data (in bytes) transmitted from the ground station to the air unit per second.
Data Download:
The amount of data (in bytes) transmitted from the air unit to the ground station per second.
Image Upload Bitrate:
The amount of image data sent per second through the upload channel.
Image Download Bitrate:
The amount of image data received per second through the download channel.
Image Wireless Channel:
The current operating frequency point of the image transmission link.
Image Strength:
The strength of the radio signal between the ground station and the air unit.
Image Quality:
The reliability and stability of the signal transmission between the ground station and the air unit.

3.3.6 BUTTONS & DIALS

The UniRC 10 Pro handheld ground station supports customization of button and dial functionalities.

3.3.6.1 BUTTONS

This function allows users to assign specific working modes or actions to the physical buttons on the device.

Button Working Modes
Lock:
When a “Lock” button is pressed, it will physically rebound, but the corresponding channel continues to output a signal. The output value switches to 1950. Pressing the button again changes the output to 1050.
3-Stage:
In this mode, the button functions as a three-position switch. A short press toggles the channel output between 1950 and 1050, while a long press sets the output to 1500.
Reset:
When the button is pressed, the corresponding channel outputs a signal. Once released, the output resets to zero.

3.3.6.2 DIALS

This feature allows users to configure the working modes of the LD (Left Dial), RD (Right Dial) and LK (Left Knob), RK (Right Knob) .

Dial Working Modes
Centering:
In Centering mode, when the dial is turned and then released, the channel output value will automatically return to the initial position (channel midpoint).
Thumb-Slide:
In Thumb-Slide mode, when the dial is turned and then released, the output value will remain at the current channel position and will not return to the center.

3.3.7 Air Unit Settings

This function allows mapping of five communication channels to the corresponding PWM output ports on the air unit.

3.3.8 FAILSAFE

After the ground control station and the air unit are paired for the first time, it is essential to configure the failsafe function.
Failsafe refers to the feature that allows the air unit to continue outputting preset PWM values through its channels in the event of a lost connetction with the ground station, thereby minimizing the risk of a crash.

To configure the Failsafe function for your handheld ground station, please follow the steps below:
1. Ensure that the Ground Control Station (GCS) has been successfully bond with the Air Unit.
2. Enter the Failsafe Settings menu. The interface will appear as shown below:

3. The Failsafe Function is disabled by default. The numbers on the left represent the communication channels. When a failsafe output value is not configured, the channel output is displayed as “Hold” by default.
4. If you want a specific channel to output a designated value when failsafe is triggered, first enable the Failsafe Switch. Then click the “Hold” button next to the corresponding channel to switch it to “Custom” mode, and enter the desired output value (travel position).
5. Once the setup is complete, if the link is lost, the selected channel(s) will output the preset travel value accordingly.

Note:
If your flight controller communicates with the handheld ground station via the S.Bus protocol, you generally do not need to configure the failsafe function on the ground station side ， unless the flight controller
specifically requires a certain channel to maintain a preset value to trigger a failsafe action such as Return-to-Home (RTH).
Instead, you can simply configure the appropriate failsafe behavior in the flight controller’s GCS software.
The S.Bus protocol includes a failsafe flag, which informs the flight controller when a failsafe condition has occurred.

3.3.9 SYSTEM

3.3.9.1 Air Unit

The Air Unit function allows the ground station to store multiple sets of binding information and corresponding channel configuration data for different air units.
Once each air unit has been initially bound to the ground station, users can switch between air units without needing to rebind each time.

Warning
Never switch the air unit during flight. Doing so may cause loss of link, leading to a loss of control!

3.3.9.2 Channel 15

This function allows you to assign control of Communication Channel 15 to either the searchligh switch on a weatherproof camera or to the pitch control of the A2mini gimbal.

Note
Channel 15 corresponds to the device connected to the LAN1 port on the air unit, while Channel 16 corresponds to the LAN2 port. By default, Channel 16 controls the floodlight.
The PWM signal from the LAN1 port is segmented (two-stage), while the LAN2 port outputs a linear PWM signal. Therefore, when only the A2mini gimbal camera is connected, ensure that it is connected to the LAN1 port, and set Channel 15 to “Single-Axis Gimbal Mode”.
If the A2mini is connected to the LAN2 port, gimbal control will not be functional.

3.3.9.3 Joy Dead Zone

Adjust the Joystick deadzone to accommodate different control preferences and handling styles.

3.3.9.4 Flight Mode

The flight mode can be set to Left Third Gear, Right Third Gear, Sixth Gear, or OFF.

OFF: Disables the flight mode function.
Left Third Gear: Buttons L1 to L3 are mapped to a single channel.
Right Third Gear: Buttons R1 to R3 are mapped to a single channel.
Sixth Gear: Buttons L1 to L3 and R1 to R3 are mapped to a single channel.

3.3.9.5 Flight Mode

The communication channel mapped to the flight mode function.

3.3.9.6 Custom Mode Channel Value

After selecting a flight mode, the corresponding channel value for the chosen gear will be displayed in the APP. By clicking on the channel, users can modify the channel value in the pop-up page. For example, if the channel value for Flight Mode 2 is switched to 1300, then during flight, when the flight mode channel is set to Flight Mode 2, the configured flight mode channel will output a value of 1300.

3.3.9.7 Remote control SDK connection method

The method by which users connect the data link to their own network and ground station via the SDK.

3.3.10 Image Transmission Settings

3.3.10.1 Image Transmission Mode

Change the bitrate mode of the image transmission.

3.3.10.2 Down bandwidth of image transmission

Allows switching the maximum downlink bandwidth of the image transmission.

3.3.10.3 Frequency Band

Manually switch the frequency band of the remote controller.

3.3.10.4 Channel Adaption

In environments with complex electromagnetic interference or noisy wireless signals, enable this feature. When enabled, the SIYI link will automatically search for the wireless channel with the lowest interference during connection establishment to optimize wireless communication conditions.
If Adaptive Wireless Channel is disabled, the wireless channel can be manually selected from channels 1 to 16.

3.3.10.5 Image transmission IP

Click on the Image transmission ground IP or thesky IP to modify the corresponding video transmission IP address.

3.3.11 DEVICE INFO

RC Firmware Version: Current firmware version of the remote controller mainboard.
AU Firmware Version: Current firmware version of the air unit.
AU FPV Firmware Version: Current firmware version of the air unit’s image transmission module.
FPV Firmware Version: Current firmware version of the remote controller’s image transmission module.
Restore RC configuration default parameters: After clicking, the remote controller will reboot. Once restarted, all settings will be restored to their default values.

Clicking on the image transmission firmware version allows manual selection of a local firmware file to upgrade the image transmission firmware on both the air unit and the remote controller.

Note:
The firmware versions of the image transmission modules on both the air unit and the ground station must be consistent to enable communication.

3.4 Bind RC

Please follow the steps below to bind the Ground Control Station (GCS) and Air Unit:

Open the Remote Controller Settings menu in UniGCS, scroll to the bottom, then click “Bind RC”.
The GCS status indicator will start flashing red rapidly, The handheld ground station will emit a beep sound.
Press and hold the Air Unit binding button for 2 seconds, the Air Unit status indicator will also start flashing red rapidly.
Please wait about 5 to 10 seconds until both the GCS and Air Unit status indicators turn solid green, indicating the binding is successful.

3.5 Device Information

Displays the UniGCS application version and commonly used SIYI Technology contact information. You can also switch the map type, units of measurement, battery information, and voice broadcast modes in this menu.

Chapter 4 Telemetry Data Transmission

Telemetry is one of the core features of most SIYI link products. SIYI link modules and handheld ground stations support communication with various ground control station (GCS) software platforms through multiple hardware and software interfaces.
To enable telemetry, connect the telemetry port of the flight controller to the UART1 or UART2 port on the UniRC 10 Pro air unit.
(The diagram below shows Telemetry Port 1 of the N7 Autopilot connected to the UART1 port of the UniRC 10 Pro air unit.)

Note
UniRC 10 Pro supports dual UART ports. When using the telemetry function, please ensure that the configured telemetry port in the ground control software matches the actual UART port connected on the air unit, otherwise, the system may not function properly.

4.1 Communication with Android Ground Station via UART

Launch the UniGCS app. In the telemetry settings, set the connection type to UART, and configure the baud rate to match the telemetry baud rate of the flight controller.
Open the ground control software to establish the connection.

Note
Developers can refer to the Telemetry SDK documentation in Chapter 6 of this manual to enable support for this feature in their own ground control station applications.

4.1.1 BoYing “XUAV”

1. Launch the UniGCS app. In the telemetry settings, set the connection type to UART, and set the air unit baud rate to 57600.
2. Open the XUAV ground station. Set the connection type to Serial Port, the port address to /dev/ttyHS3, and the baud rate to 115200. Then, click Connect.

3. Wait for the handheld ground station to connect to the flight controller.

Note
SIYI link products also support connection to the XUAV ground station via Bluetooth.

4.2 Communication with Android Ground Station via Bluetooth

4.2.1 QGroundControl

1. Launch the UniGCS app. In the telemetry settings, set the connection type to Bluetooth, and set the air unit baud rate to match the telemetry baud rate of the flight controller.
2. Go to the Bluetooth settings in the Android system menu. Search for the device named “BLUE 94******”**, and pair with it.
3. Open the QGroundControl (QGC) ground station software. Navigate to Application Settings > Comm Links, click Add to create a new connection, and name it “Bluetooth”.

4. Set the connection type to Bluetooth, then click Scan to search for available devices.

5. Select the Bluetooth device named “BLUE-xxxxxxxx”, then click “OK” to return to the Comm Links menu.

6. Select the configured “Bluetooth” connection and click “Connect”. Once the progress bar at the top of the QGC interface starts moving, it indicates that the handheld ground station and the flight controller are attempting to establish a telemetry connection. Once connected, data communication will proceed normally.

Note
When adding and setting up the connection in QGroundControl for the first time, do not check the “Automatically Connect on Start” option.
You may enable this option after confirming that the telemetry connection works properly.

4.2.2 Mission Planner

1. Open the UniGCS app, go to Telemetry Settings, set the connection type to Bluetooth, and configure the baud rate to match that of the flight controller’s telemetry port.
2. Launch the Mission Planner ground control software, select the corresponding COM port (standard serial port assigned to the Bluetooth connection) and baud rate, then click Connect.

3. Wait patiently for the connection to be established.

4.2.3 Jiyi “AgriFly Assistant”

1. Open the UniGCS app, go to Telemetry Settings, set the connection type to Bluetooth, and configure the baud rate to 57600.
2. In the AgriFly Assistant app, select Bluetooth as the connection method and confirm the selection.

3. Select the remote controller’s telemetry Bluetooth device and click Connect.

4. Wait patiently for the connection to be established.

4.3 Communication with Android Ground Station via UDP

4.3.1 QGroundControl

1. Open the UniGCS app, go to Telemetry Settings, set the connection type to UDP, and configure the baud rate to match the telemetry port of the flight controller.
2. Launch the QGroundControl (QGC) ground station software, go to the Application Settings menu, click on Comm Links, and add a new connection by clicking Add, naming it UDP.

3. Set the connection type to UDP, set the Port to 0, enter the Server Address as 192.168.144.20:19856, add the server by clicking Add Server, then click OK to return to the Comm Links menu.

4. Select the configured “UDP” connection and click “Connect”. When the progress bar at the top of the QGC interface starts moving, it indicates that the handheld ground station and the flight controller ground station software are attempting to establish telemetry communication. Once the connection is established, data communication will proceed normally.

Note
When adding and configuring the connection for the first time in QGC, do not check the “Automatically Connect on Start” option.
You may enable this option after confirming that the telemetry connection is working properly.

4.3.2 Mission Planner

1. Open the UniGCS app, go to Telemetry Settings, set the connection type to UDP, and configure the baud rate to match the telemetry port of the flight controller.
2. Launch the Mission Planner ground station software, select the corresponding port (UDPCl) and baud rate, set the Port to 19856, enter the Server Address as 192.168.144.20, then click Connect to establish the connection.

3. Wait patiently for the connection to be established.

4.3.3 VGCS Ground Station

1. Open the SIYI Remote Control app, go to Telemetry Settings, set the connection type to UDP, and change the baud rate to 115200.
2. Open the connection options and add a new connection.

3. Select the connection type as UDP, enter 192.168.144.20:19856 in the server address field and add the server, then change the port to 0.

4. Save the connection settings and connect.

Note:
SIYI Link also supports connection to the VGCS ground station via Bluetooth.

4.4 Communication with Windows Ground Station via Ground Unit Type-C Upgrade Port

4.4.1 QGroundControl

1. Use the original upgrade cable to connect the Type-C upgrade port at the bottom of the ground unit to the PC. The PC will create a communication port for the ground unit.
2. Open the UniGCS app, go to Telemetry Settings, set the connection type to Upgrade, and set the baud rate to match the telemetry port of the flight controller.
3. Launch the QGC ground station software, navigate to Application Settings, click Comm Links, then add a new connection named Upgrade / Type-C.

4. Set the connection type to Serial, then select the corresponding port and baud rate.
5. Choose the configured Upgrade/Type-C connection and click Connect. When the progress bar at the top of the QGC ground station changes, it indicates that the telemetry communication between the ground unit and the ground station has entered the auto-connection process. Once connected, normal communication is established.

Note:
When adding and setting up a connection for the first time in QGC, do not check the “Automatically Connect on Start” option. You may enable this option only after confirming that the telemetry connection can be successfully established.

4.4.2 Mission Planner

Open the “UniGCS” app, navigate to the telemetry settings, set the connection type to “Upgrade,” and set the baud rate to match the telemetry flight controller serial port.
1. Use the original Type-C upgrade cable to connect the Type-C port at the bottom of the ground unit to the PC. The PC will create a communication port for the ground unit.
2. Run the Mission Planner ground station software, select the corresponding port and baud rate, then click Connect.

3. Please patiently wait for the connection to establish.

4.5 Communication with Windows Ground Station via UDP through Ground Unit WiFi Hotspot

4.5.1 QGroundControl

1. Launch the UniGCS application, open the data transmission settings, set the connection type to UDP, and configure the baud rate to match the autopilot system data transmission serial port.
2. Enable the WiFi hotspot on the ground unit’s Android system, and establish a WiFi connection between the ground unit and the Windows PC.
3. Run the QGC Ground Station software, navigate to the Application Settings menu, select Comm Links, and click Add to create a new connection.

4. Name the connection “UDP”, set the connection Type to UDP, set the Port to 19856, enter the server address “192.168.144.20” in Server Addresses, then add the server by clicking Add Server, and finally click OK to return to the Comm Links menu.

5. Select the configured “UDP” connection and click Connect. Once connected successfully, communication is established.

Note:
When adding and configuring a new connection type in QGroundControl (QGC) for the first time, please do not select the “Automatically Connect on Start” option. You can enable this option after confirming that the data transmission connection is successfully established.

4.5.2 Mission Planner

1. Open the “UniGCS” app, go to data transmission settings, set the connection type to “UDP,” and set the baud rate consistent with the autopilot’s data transmission serial port.
2. Enable the WiFi hotspot on the ground unit’s Android system, and connect the ground unit and Windows PC via WiFi.
3. Launch the Mission Planner ground station software, select the corresponding port (UDPCl) and baud rate, set the interface “Port” to “19856”, enter the server address “192.168.144.20”, then click “Connect.”

4. Patiently wait for the connection to establish.

4.6 Troubleshooting Data Transmission Connection Failures

When the ground unit and air unit are communicating normally, but the data transmission connection to the ground station software cannot be established successfully, please follow the steps below for troubleshooting:
1. First, ensure the air unit is properly connected to your autopilot system via the correct data transmission cable.
2. If using a DIY data transmission cable between the air unit and your autopilot, check the following:

Is the wiring sequence correct?
Are the TX and RX pins of the autopilot and air unit data transmission serial ports cross-connected properly?
Are Data Transmission Port 1 and Port 2 configured correctly?

3. In the “UniGCS” app, go to the “LINK STATUS” menu and check the data values to verify communication between the autopilot and air unit. Normal communication shows a “Data Transmission Downlink” value greater than 0. If the value is 0, return to steps 1 and 2 to check the cables.
4. In the “UniGCS” app, enter the “DATA LINK” menu and verify:

Is the data transmission connection mode set correctly?
For PX4 / ArduPilot open-source autopilots or custom autopilots, is the baud rate set correctly?
In the autopilot ground station software, is the data transmission connection mode correctly configured?

5. For PX4 / ArduPilot or custom autopilots, try switching the data transmission cable connection to the TELEM 1 or TELEM 2 port.
6. Are both the ground unit and air unit running the latest firmware?
7. If using a wireless hotspot with UDP data transmission mode, disable the Ethernet connection on the PC and try connecting again.

Note:
If you have already performed the above troubleshooting steps but the problem remains unresolved, please promptly contact your dealer or directly reach out to SIYI Technology for further diagnosis and support.

Chapter 5 Image Transmission

The UniRC 10 Pro Link supports up to 1080p resolution at 60 fps with low-latency real-time image transmission. It is compatible with SIYI Optical Pods and Gimbal Cameras, and also supports connection with third-party Ethernet cameras and optical pods. The UniRC 10 Pro Air Unit is equipped with dual Ethernet ports, allowing simultaneous connection of two gimbals for image transmission. Additionally, an external Air Unit HDMI input module can be used to expand connectivity to cameras with HDMI input.

Note:
When connecting two SIYI Optical Pods or Gimbal Cameras simultaneously to the UniRC 10 Pro Air Unit, the IP address of one device must be changed to a value other than 192.168.144.25. During connection, the RTSP address must be manually entered to establish the link.

5.1 SIYI Gimbal Cameras (Optical Pods) AI Tracking via SIYI AI Tracking Module over SIYI Link

SIYI Optical Pods (Gimbal Cameras) can connect to the SIYI Link through the SIYI AI Tracking Module. Under normal Air Unit to Ground Station communication, AI recognition and tracking functions can be performed via the UniGCS application or the SIYI QGC application.

Setup Steps:
1. Refer to the above diagram to connect the SIYI AI Tracking Module with the SIYI Gimbal Camera and the SIYI Link.
2. Confirm that the gimbal camera firmware has been updated to a version supporting the SIYI AI Tracking Module.
3. Launch the UniGCS application, go to “Address Settings,” and select “SIYI AI Camera.”

4. Return to the main screen and click the AI Tracking Recognition function button to activate the feature.

5. Click the AI Tracking Recognition function button again to deactivate the feature.

5.2 Control of SIYI Optical Pods (Gimbal Cameras) via SIYI Link Using UniGCS or SIYI QGC Android Applications

SIYI Optical Pods (Gimbal Cameras) can be directly connected to the SIYI Link. When communication between the Air Unit and Ground Control Station is established, the UniGCS or SIYI QGC Android applications can be used to control the gimbal’s orientation and functions, as well as display the video feed.

5.2.1 Preparation

Before use, please prepare the following tools, firmware, and software:

SIYI Link products (recommended to use UniRC 10 Pro Standard Kit, MK32 Standard Kit, HM30, or MK15 Industry Standard Kit together with SIYI Gimbal Cameras)
SIYI Optical Pods (Gimbal Cameras)

Note:
These products can be purchased from SIYI Technology or its authorized distributors.

SIYI Gimbal Link Connection Cable

Note:
These tools are included as standard accessories with the product shipment.

UniGCS Application
SIYI QGC Application

Note:
These software applications can be downloaded from the official SIYI website product pages.

UniGCS Application Usage Steps:
1. Power on the Air Unit and ensure communication between Air Unit and Ground Control Station (GCS).
2. Use the SIYI Gimbal Link Connection Cable to connect the Air Unit’s network port to the gimbal’s network port.
3. Update the UniGCS application on the ground station to the latest version.
4. Run the UniGCS app, enter the Settings menu, and under Address Settings select the corresponding SIYI camera type and main/sub-stream to display the camera feed and control the gimbal’s orientation and functions via the app.

SIYI QGC Application Usage Steps
1. Power on the Air Unit and ensure communication between Air Unit and GCS.
2. Use the SIYI Gimbal Link Connection Cable to connect the Air Unit’s network port to the gimbal’s network port.
3. Run the SIYI QGC app, go to “general” settings, under “Video Settings” select “RTSP Video Stream” as the Source, then input the default RTSP address of the SIYI Pod/Gimbal camera to display the live video and control gimbal orientation and functions through the app.

5.2.2 Gimbal pitch and yaw

When running UniGCS or SIYI QGC apps, long press on the ground station touchscreen and slide left or right to control the yaw-axis. long press and slide up or down to control the pitch-axis. The gimbal moves in the same direction as the finger swipe.
Double-tap the screen to auto-center the gimbal.

Note:
After sliding, keep pressing the touchscreen to keep the gimbal moving until reaching the maximum angle. The farther the press position is from the screen center, the faster the gimbal rotates.

5.2.3 Zoom Control

When running UniGCS or SIYI QGC apps, tap the “Zoom In” or “Zoom Out” icons on the touchscreen to control the zoom level.

5.2.4 Photo and Video Recording

When running UniGCS or SIYI QGC apps, tap the “Photo” icon on the touchscreen to take a photo. Tap the “Record” icon to start video recording, and tap the “Recording” icon again to stop recording.

Note:
Before using photo or video functions, an SD/TF card must be inserted into the gimbal camera.

5.3 SIYI Link Control of SIYI Pods (Gimbal Cameras) via SIYI QGC (Windows) Software

The gimbal can be directly connected to the Air Unit, and when communication between the Air Unit and Ground Station is established, the SIYI QGC (Windows) application can be used to control gimbal orientation and functions as well as display the video feed.

5.3.1 Preparation

Before use, ensure the following tools, firmware, and software are properly prepared:

SIYI Link Products (It is recommended to use the UniRC 10 Pro Standard Kit, MK32 Standard Kit, HM30, or MK15 Enterprise Standard Kit in combination with SIYI gimbal cameras.)
SIYI Optical Pods (Gimbal Cameras)

Note:
The above products can be purchased from SIYI Technology or its authorized distributors.

SIYI Gimbal Link Cable

Note:
This cable is included as a standard accessory in the product package.

SIYI QGC（Windows）Software

Note:
The software can be downloaded from the product page on the official SIYI website.

Steps to Use SIYI QGC (Windows)
1. Power on the Air Unit and ensure communication between the air unit and the ground unit is established.
2. Connect the Air Unit’s Ethernet port to the gimbal quick-release dampening board’s Ethernet port using the SIYI Gimbal Link Cable.
3. Connect the SIYI Link Ground Unit to your Windows computer.
4. Adjust your computer’s Ethernet settings to match the SIYI Link configuration and avoid IP conflicts.
For example: IP address: 192.168.144.30

5. Launch the SIYI QGC software, navigate to the “Communication Connection” settings, go to the “Video Settings” menu, set “Source” to “RTSP Video Stream”, and enter the default RTSP address of the SIYI optical pod/gimbal camera. Once configured, the video feed will be displayed, and the gimbal’s orientation and functions can be controlled via mouse through the ground control station.

5.3.2 Gimbal Pitch and Yaw control

When running SIYI QGC, press and hold on the video screen of the ground station, then drag the mouse cursor left or right to control the gimbal’s horizontal Yaw; drag up or down to control the gimbal’s vertical Pitch. The gimbal moves in the same direction as the mouse cursor drag.
Double-clicking the screen will reset the gimbal to center.

Note:
While holding the mouse button, the gimbal will continue to move until reaching its maximum angle. The farther the cursor is from the screen center, the faster the gimbal rotates.

5.3.3 Zoom and Focus

When running SIYI QGC, use the mouse to click the “Zoom In” or “Zoom Out” icons on the interface to control zoom.
Click on the screen, and the optical zoom camera will automatically focus.

5.3.4 Photo and Video Capture

When running SIYI QGC, click the “Capture Photo” icon on the interface to take a photo.
Click the “Start Recording” icon to begin recording; click the “Recording” icon again to stop.

Note:
Make sure to insert an SD / TF card into the gimbal camera before using photo or video functions.

5.4 Connecting SIYI Link to Third-Party IP Cameras

Before connecting a third-party IP camera or gimbal, set its IP address to the 192.168.144.X range.
Do not use: 192.168.144.11, 192.168.144.12, or 192.168.144.20 as these are reserved for the air unit, ground unit, and Android system, respectively. Otherwise, the system will not function properly.

Steps:
1. Access your IP camera or gimbal’s configuration page and copy the RTSP address.
2. Using QGroundControl as an example, open the QGC Ground Station Software, navigate to the General settings menu, and scroll down to Video Settings.

3. Set the video source to “RTSP Video Stream”, then paste the previously copied RTSP address of the IP camera or gimbal into the “RTSP URL” field below.
4. Return to the ground station main interface to view the video feed.

5.5 Integrating SIYI Link with HDMI Cameras

Cameras that only support HDMI output must be connected to the SIYI Air Unit via the SIYI HDMI Input Module. Please follow the steps below:
1. Using QGroundControl as an example, open the QGC ground station software, navigate to the General settings menu, and scroll down to Video Settings.
2. Set the video source to “RTSP Video Stream”, then enter the RTSP address of the SIYI HDMI video conversion module in the “RTSP URL” field.
3. Return to the ground station main interface to view the video feed.

5.6 Integrating SIYI Link with Dual Video Streams

When integrating dual video streams via SIYI Link, two cameras can be connected simultaneously to the LAN1 and LAN2 ports of the UniRC 10 Pro Air Unit. SIYI Link supports multiple dual video stream connection methods.

5.6.1 Connecting Two SIYI Cameras or Two HDMI Input Modules

Assign different IP addresses to the two SIYI cameras or HDMI input modules, such as “192.168.144.25” and “192.168.144.26”. After connecting both cameras to the UniRC 10 Pro Air Unit and launching the UniGCS application, select “Camera A” and “Camera B” in the IP address fields to view dual video streams.

5.6.2 Connecting Two Third-Party IP Cameras or Optical Pods

Ensure that the two cameras/pods have different IP addresses and are connected to UniRC 10 Pro. Open the SIYI UniGCS application and enter the corresponding RTSP addresses in the IP address fields to display dual video streams.

Note
Dual video stream functionality will not work if the IP addresses of the two streams are the same.
For detailed information on SIYI Link remote control and gimbal component IP addresses, please refer to section 5.8 of this manual.

5.7 Common Device Parameters

SIYI Link Air Unit IP Address: 192.168.144.11
SIYI Link Ground Unit IP Address: 192.168.144.12
SIYI Handheld Ground Station Android System IP Address: 192.168.144.20

SIYI AI Tracking Module Default IP: 192.168.144.60
SIYI Optical Pod (Gimbal Camera) Default IP: 192.168.144.25
(New) Default RTSP Addresses for SIYI Cameras/Gimbals:
SIYI AI Camera: rtsp://192.168.144.60/video0

Main Stream: rtsp://192.168.144.25:8554/video1
Sub Stream: rtsp://192.168.144.25:8554/video2
(New) UniGCS App Custom Protocol Addresses:
Camera A: 192.168.144.25:37256
Camera B: 192.168.144.25:37255

SIYI Rugged Camera A IP: 192.168.144.25
SIYI Rugged Camera B IP: 192.168.144.26
SIYI HDMI Input Module IP: 192.168.144.25
SIYI Rugged Camera A RTSP Address:
rtsp://192.168.144.25:8554/main.264
SIYI Rugged Camera B RTSP Address:
rtsp://192.168.144.26:8554/main.264
SIYI HDMI Input Module RTSP Address:
rtsp://192.168.144.25:8554/main.264

Common Video Playback Software: UniGCS, SIYI FPV, SIYI QGroundControl, EasyPlayer
Network Diagnostic Tool: Ping Tools

Note
Camera products released after the ZT30 use the new address format, including ZT30, ZT6, etc.
Products released before ZT30 still use the old address format, including ZR30, A2 mini, A8 mini, ZR10, and R1M SD-recording FPV cameras.
RTSP addresses are labeled on all SIYI IP cameras and HDMI input modules before shipment. Please refer to them accordingly.

5.8 Troubleshooting Video Feed Display Issues

If video cannot be displayed via the SIYI Link, please follow these steps to troubleshoot:
1. Check the connections:

Ensure the Ground Unit and Air Unit are paired (i.e., status indicators on both units are green).
Ensure proper wiring between the camera and the Air Unit (use Ping Tools to test the link between camera and system).

2. Check software settings:

In UniGCS: confirm the camera address field is set correctly.
In QGroundControl: confirm the video settings are configured properly.

If video cannot be displayed on the SIYI handheld ground station, please check the Android system’s network status:
Ethernet Switch: Make sure the Ethernet icon is visible on the Android main interface. If not, go to the Android settings to enable the Ethernet function.

Note
If you are still unable to identify the issue after following the above troubleshooting steps, please contact your dealer or SIYI Technology directly for further assistance.

5.9 Outputting Video from the Ground Unit to Other Devices

UniRC 10 Pro ground unit supports multiple methods for outputting video to external display devices.

5.9.1 Output via the Ground Unit’s HDMI Port

To output video to an HDMI monitor:
Use a standard HDMI cable to connect the UniRC 10 Pro ground unit’s HDMI port to the monitor’s HDMI input. The monitor will then display a real-time screen mirror of the ground unit.

5.9.2 Output via Ground Unit Wi-Fi Hotspot Sharing

To share video to a Windows laptop using QGC as an example:
1. Open the Android system settings.
2. Navigate to: Network & Internet → Hotspot & Tethering → Wi-Fi Hotspot.

3. Enable the hotspot and configure the hotspot name and password.
4. Connect the Windows laptop to the hotspot shared by the UniGCS ground unit.
5. On the laptop, launch the QGC ground station software. Navigate to Application Settings → Video, and set the video source to RTSP Video Stream.

6. In the RTSP URL field, enter the RTSP address of the camera device connected to the air unit. The corresponding video feed will then be displayed.

Note
If the external device sharing video via the ground unit’s WiFi hotspot and the software running on the UniRC 10 Pro ground station are displaying the same video stream simultaneously, image stuttering may occur due to bandwidth limitations. In this case, please disable one of the video streams, or set one stream source to “SIYI Camera 1/2” and keep the other using the RTSP address.

5.9.3 Outputting Video via Ethernet Port

1. Ensure that the UniRC 10 PRO link is in communication and that the air unit’s video input interface is connected to a camera or gimbal pod.
2. Use an RJ45-to-4-pin adapter cable to connect the LAN port on the top of the UniRC 10 PRO ground unit to a PC.
3. On the PC, open Ethernet settings. Click “Change adapter options” and locate the newly added network connection.

4. Locate the newly added network connection, then click “Properties” → “Internet Protocol Version 4 (TCP/IPv4)”, and set the IP address as follows:

5. Run the RTSP streaming software EasyPlayer.

6. Enter the full RTSP address of the camera or gimbal pod in the EasyPlayer IP address field to display the video feed.

7. If the video feed cannot be displayed properly, first open the Ping application on the UniRC 10 Pro ground station to check network connectivity, then on the PC press the “Win+R” keys to open the menu shown below.

8. Type “cmd” and press Enter to open the Ping program. Refer to the image below to input the camera’s IP address. If there is a response, it indicates that the network communication is normal and the video feed should work properly. If there is no response, it means the link is disconnected and you need to check the wiring or connection status.

Chapter 6 SDK Communication Protocol

6.1 Protocol Format Description

Field	Index	Byte Size	Description
STX	0	2	Start Flag, fixed value: 0x5566
CTRL	2	1	Control Byte: • Bit 0: need_ack — whether an ACK is required • Bit 1: ack_pack — whether this is an ACK packet • Bits 2–7: Reserved
Data_len	3	2	Length of the Data field (little-endian)
SEQ	5	2	Frame sequence number (0–65535), little-endian
CMD_ID	7	1	IDCommand ID
DATA	8	Data_len	date
CRC16		2	CRC-16 checksum for the entire packet, little-endian

6.2 Communication Commands

6.2.1 0x40: Get Remote Controller Hardware ID

CMD_ID:0x40—— Hardware ID
Send Data Format
No.	Data Type	Data Name	Description

ACK Data Format
	Uint8_t	hardware_id[12]	Hardware ID String (10-digit)

eg：
Send（HEX）：55 66 01 00 00 00 00 40 81 9c
Receive（HEX）：55 66 02 0C 00 09 00 40 36 38 30 31 31 33 30 31 31 31 00 00 7b 8b

6.2.2 0x16: Get System Settings

CMD_ID:0x16——Get System Settings
Send Data Format
No.	Data Type	Data Name	Description

ACK Data Format
	Uint8_t	match	Pairing Command Values (0: Start Pairing; 1, 2: Pairing in Progress; 3: Pairing Complete)
	Uint8_t	Com1_baud _type	Air Unit UART1 Baud Rate 1：BAUD_9600 3：BAUD_57600 5：BAUD_115200
	Uint8_t	Joy_type	Joystick type value (0-3 corresponds to Mode 1 – Mode 2 – Mode 3 – Custom)
	Uint8_t	Rc_bat	Remote controller battery voltage ×10
	Uint8_t	Com2_baud _type	Air Unit UART2 baud rate 1：BAUD_9600 3：BAUD_57600 5：BAUD_115200

6.2.3 0x17: System Settings

CMD_ID:0x17——System Settings
Send Data Format
No.	Data Type	Data Name	Description
	Uint8_t	match	Binding Command Value (1: Enable Binding; 0: Disable Binding) When this field is set, its value is 1; When this field is not set, its value is 0.
	Uint8_t	Com1_Baud_t ype	Air Unit UART1 Baud Rate 1: BAUD_9600 3: BAUD_57600 5: BAUD_115200
	Uint8_t	Joy_type	Joystick Type Value (0–3): 0: Japanese Mode 1: American Mode 2: Chinese Mode 3: Custom Mode
	Uint8_t	reserved
	Uint8_t	Com2_Baud_t ype	Air Unit UART2 Baud Rate 1：BAUD_9600 3：BAUD_57600 5：BAUD_115200
ACK Data Format
	int8_t	sta	1 ok A negative value indicates a configuration error.

6.2.4 0x42: Remote Control Channel Data

CMD_ID:0x42——Remote Control Channel Data
Send Data Format
No.	Data Type	Data Name	Description
	Uint8_t	freq	Output Frequency: 0: Disable Transmission 1：2Hz 2：4Hz 3：5Hz 4：10Hz 5：20Hz 6：50Hz 7：100Hz
ACK Data Format
1	int16_t	CH1	Each channel uses two bytes (default range: 1050–1950)
2	int16_t	CH2
3	int16_t	CH3
……	int16_t	……
16	int16_t	CH16

eg：
Send（HEX）：55 66 01 01 00 00 00 42 02 B5 C0（4HZ） Must be sent three times consecutively 55 66 01 01 00 00 00 42 00 F7 E0（Turn off） Must be sent three
times consecutively Response（HEX）（2HZ）：55 66 00 20 00 99 00 42 DC 05 DC 00 DC 05 DC 05 DC 05 DC 05 DC 05 DC 05 DC 05 DC 05 DC 05 1A 04 DC 05 DC 05 1A 04 1A 04 FF 88

6.2.5 0x43: Retrieve Remote Link Information

CMD_ID:0x43—— Retrieve Remote Link Information
Send Data Format
No.	Data Type	Data Name	Description

ACK Data Format
	uint16_t	freq	Frequency
	uint8_t	pack_loss_rate	Packet Loss Rate
	uint16_t	real_pack	Valid Packets
	uint16_t	real_pack_rate	Valid Packet Rate
	uint32_t	data_up	Uplink Data Rate (bytes/s)
	uint32_t	data_down	Downlink Data Rate (bytes/s)
	uint32_t	data_up_2	Uplink Data Rate for Link 2 (bytes/s)
	Uint32_t	Data_down_2	Downlink Data Rate for Link 2 (bytes/s)

eg：
Send（HEX）：55 66 01 00 00 00 00 43 e2 ac
Response（HEX）：

6.2.6 0x44: Retrieve Video Link Information

CMD_ID:0x44——Retrieve Video Link Information
Send Data Format
No.	Data Type	Data Name	Description

ACK Data Format
	uint16_t	video_up	Video Uplink Bitrate (video_up / 10) Kbps
	uint16_t	video_down	Video Downlink Bitrate (video_down / 10) Mbps
	uint8_t	channel	Video Transmission Channel (1–16)
	int16_t	signal_strength	0 to 100% (5 gear settings: 0, 20, 40, 60, 80, 100)
	uint8_t	signal_quality	（-15 to 30） (no unit). A higher value indicates better signal quality. Grading: Strong: Above 10 Medium: 5 to 10 Weak: Below 5

eg：
Send（HEX）：55 66 01 00 00 00 00 44 05 dc
Response（HEX）：

6.2.7 0x47: Retrieve Firmware Version Number

CMD_ID:0x47——Retrieve Version Number
Send Data Format
No.	Data Type	Data Name	Description

ACK Data Format
	uint32_t	rc_version	Remote Controller Firmware Version
	uint32_t	rf_version	Receiver Firmware Version
	uint32_t	ground_version	Ground Unit Video Transmission Firmware Version
	uint32_t	sky_version	Air Unit Video Transmission Firmware Version

ps：he retrieved version number is a 4-byte hexadecimal value, where the lowest byte is the first byte, and the highest byte is the last byte. Ignore the first byte; the remaining three bytes represent the version number in the format: major.minor.patch.
eg：
Send（HEX）：55 66 01 00 00 00 00 47 66 ec
Reply（HEX）：55 66 02 10 00 02 00 47 00 03 05 68 07 02 05 69 02 02 00 56 02 02 00 56 6d 21

6.2.8 0x48: Retrieve All Channel Mappings

CMD_ID:0x48——Retrieve All Channel Mappings
Send Data Format
No.	Data Type	Data Name	Description
ACK Data Format
1	Uint8_t	Ch1_type	Mapped Physical Channel Type: 0 – Joystick, dial, or similar channels 1 – Button or similar channels
1	uint8_t	Ch1_ entity_id	Physical Channel ID
2	Uint8_t	Ch2_type	Mapped Physical Channel Type: 0 — Joystick, dial, or similar channels 1 — Button or similar channels
2	uint32_t	Ch2_ entity_id	Physical Channel ID
3	Uint8_t	Ch3_type	Mapped Physical Channel Type: 0 – Joystick, dial, and similar channels 1 – Button and similar channels
3	uint8_t	Ch3_ entity_id	Physical Channel ID
4	Uint8_t	Ch4_type	Mapped Physical Channel Type: 0 – Joystick, dial, and similar channels 1 – Button and similar channels
4	uint8_t	Ch4_ entity_id	Physical Channel ID
…..	uint8_t	…..

eg：
Send（HEX）：55 66 01 00 00 00 00 48 89 1d
Reply（HEX）：55 66 02 20 00 16 00 48 00 00 00 01 00 02 00 03 05 00 05 01 05 02 01 00 01 01 01 02 01 03 00 04 00 05 02 01 02 00 03 00 C1 28

6.2.9 0x49: Retrieve Channel Mapping

CMD_ID:0x49——Retrieve Channel Mapping
Send Data Format
No.	Data Type	Data Name	Description
	Uint8_t	rc_ch	RC Channels (1–16)
ACK Data Format
	Uint8_t	rc_ch	RC Channels (1–16)
	uint8	Type	Mapped Physical Channel Type: 0 — Joystick, dial, and similar channels 1 — Button and similar channels
	uint8_t	entity_id	Physical Channel ID

eg：
Send（HEX）：55 66 01 01 00 00 00 49 02 4F 1C
Reply（HEX）：55 66 02 03 00 17 00 49 02 00 01 33 9F

6.2.10 Channel Mapping Type Definition

Category	Type	entity_id	Physical Switch Definition
Joystick	0	0	J1
	0	1	J2
	0	2	J3
	0	3	J4
	0	4	J5
	0	5	J6
	0	6	J7
	0	7	J8
Dial	0	10	LD
Dial	0	11	RD
Knob	0	8	LK
Knob	0	9	RK
3-Position Switch	5	0	SA
	5	1	SB
	5	2	SC
	5	3	SD
	5	4	SE
	5	5	SF
Button	1	0	S1
	1	1	S2
	1	2	S3
	1	3	S4
	1	4	L1
	1	5	L2
	1	6	L3
	1	7	R1
	1	8	R2
	1	9	R3
	1	10	M1
	1	11	LS
	1	12	RS
Virtual Channel	2	0	NULL
Virtual Channel	2	1	RSSI
No Physical Channel Mapped	3	0	NULL

6.2.11 0x4A: Set Channel Mapping

CMD_ID:0x4A——Set Channel Mapping
Send Data Format
No.	Data Type	Data Name	Description
	Uint8_t	rc_ch	RC Channels (1–16)
	uint8	Type	Mapped Physical Channel Type: 0 — Joystick, dial, and similar channels 1 — Button and similar channels
	uint8_t	entity_id	Physical Channel ID
ACK Data Format
	Uint8_t	rc_ch	RC Channels (1–16)
	uint8	sta	1 ok Negative values represent error codes.

eg：
Send（HEX）：55 66 01 03 00 00 00 4A 02 00 00 4F EB
Reply（HEX）：55 66 02 02 00 18 00 4A 02 01 4C C3

6.2.12 0x4B: Retrieve All Channel Reversals

CMD_ID:0x4B——Retrieve All Channel Reversals
Send Data Format
No.	Data Type	Data Name	Description
ACK Data Format
1	int8_t	ch1_reverse	RC Channel 1 Direction (1: Normal, -1: Reversed)
2	int8_t	Ch2_reverse	RC Channel 2 Direction (1: Normal, -1: Reversed)
3	int8_t	Ch3_reverse	RC Channel 3 Direction (1: Normal, -1: Reversed)
4	int8_t	Ch4_reverse	RC Channel 4 Direction (1: Normal, -1: Reversed)
5	int8_t	Ch5_reverse	RC Channel 5 Direction (1: Normal, -1: Reversed)
……	int8_t	……

eg：
Send（HEX）：55 66 01 00 00 00 00 4B EA 2D
Reply（HEX）：55 66 02 10 00 19 00 4B 01 FF 01 01 01 01 01 01 01 01 01 01 01 01 01 01 D1 F9

6.2.13 0x4C: Retrieve Channel Reversal

CMD_ID:0x4C——Retrieve Channel Reversal
Send Data Format
No.	Data Type	Data Name	Description
	Uint8_t	rc_ch	RC Channel (1–16)
ACK Data Format
	Uint8_t	rc_ch	RC Channel (1–16)
	int8_t	reverse	Reversal (1: Normal, -1: Reversed)

eg：
Send（HEX）：55 66 01 01 00 00 00 4C 02 BA E3
Reply（HEX）：55 66 02 02 00 1C 00 4C 02 FF 3B F6

6.2.14 0x4D: Set Channel Reversal

CMD_ID:0x4D——Set Channel Reversal
Send Data Format
No.	Data Type	Data Name	Description
	Uint8_t	rc_ch	RC Channel (1–16)
	int8_t	reverse	Reversal (1: Normal, -1: Reversed)

eg：
Send（HEX）：55 66 01 02 00 00 00 4D 02 FF 0F 86
Reply（HEX）：55 66 02 02 00 1D 00 4D 02 01 8B 65

6.2.15 0x4E: Get Remote Controller Multi-Device Link Status (Currently supported only by UniRC 7)

CMD_ID:0x4E——Get Remote Controller Multi-Device Link Status
Send Data Format
No.	Data Type	Data Name	Description

ACK Data Format
0	Uint8_t	rc_multi_ctl_mode	On-Device Multi-Machine Link Mode 0: Main in Single-Controller-Dual-Device Mode 1: Secondary in Single-Controller-Dual-Device Mode 2: Main in Controller Relay Mode 3: Secondary in Controller Relay Mode
1	Uint8_t	main_vice_link_status	Link Status of the Peer Remote Controller (When this device is the Primary, it displays the status of the Secondary, and vice versa.) 0: Disconnected 1: Connected 2: This Device Lost Control – Unable to retrieve the link status of the peer controller.
2	Uint8_t	rc_relay_status	Controller Relay Channel Control Status 0: Main controller has channel control authority 1: Secondary controller has channel control authority 2: This device has lost control – unable to retrieve the control status of the peer controller
3	Uint8_t	dual_ctl_status	Single-Controller-Dual-Device Mode Enable Switch: 0: Off – The main controller maintains control over all channels. 1: On – The secondary controller is permitted to control the assigned secondary channels.

6.3 Communication Interfaces

UniRC 7	UniRC 10 Pro
1. Serial Port: /dev/ttyHS3 Baud Rate: 115200 2. Bluetooth 3. Type-C (USB Virtual Serial Port, external interface) 4. UDP Interface (Server IP: 192.168.144.20, Port: 19856)	1. Serial Port 1: /dev/ttyHS3 Baud Rate: 115200 2. Serial Port 2: /dev/ttyHS0 Baud Rate: 115200 3. Bluetooth 4. Type-C (USB Virtual Serial Port, external interface) 5. UDP Interface (Server IP: 192.168.144.20, Port: 19856)

Note: The client port number should avoid using 19856 to prevent conflicts with the server.
Remarks:
When using the serial port interface, the ground station APP matches and ensures compatibility with different remote controllers based on the Android system model name (ro.product.model).

UniRC 7 Standard Edition name: Standard_94
UniRC 7 Professional Edition name: Pro_94
UniRC 10 Pro Standard Edition name: Standard-10inch_A2

Two data transmission interfaces are available, with one SDK interface optional. The configurable combinations are as follows:

(UniRC 10 Pro switches the data transmission interface and SDK interface via the UniGCS APP.)

	Data Link 1 Interface	Data Link 2 Interface	SDK Interface
Combination 1	Bluetooth	Type-C	Bluetooth/Type-C/UDP/Serial Port 1
Combination 2	Bluetooth	UDP	Bluetooth/Type-C/UDP
Combination 3	Bluetooth	Serial Port 1	Bluetooth/Type-C/Serial Port 1
Combination 4	Type-C	Bluetooth	Bluetooth/Type-C/UDP/Serial Port 1
Combination 5	Type-C	UDP	Bluetooth/Type-C/UDP/Serial Port 2
Combination 6	Type-C	Serial Port 1	Bluetooth/Type-C/Serial Port 1/Serial Port 2
Combination 7	Type-C	Serial Port 2	Type-C/ UDP/Serial Port 1/Serial Port 2
Combination 8	UDP	Bluetooth	Bluetooth/Type-C/ UDP
Combination 9	UDP	Type-C	Bluetooth/Type-C/ UDP/Serial Port 2
Combination 10	UDP	Serial Port 2	Type-C/UDP/Serial Port 2
Combination 11	Serial Port 1	Bluetooth	Bluetooth/Type-C/Serial Port 1
Combination 12	Serial Port 1	Type-C	Bluetooth/Type-C/Serial Port 1/Serial Port 2
Combination 13	Serial Port 1	Serial Port 2	Type-C/Serial Port 1/Serial Port 2
Combination 14	Serial Port 2	Type-C	Type-C/ UDP/Serial Port 1/Serial Port 2
Combination 15	Serial Port 2	UDP	Type-C/ UDP/Serial Port 2
Combination 16	Serial Port 2	Serial Port 1	Type-C/Serial Port 1/Serial Port 2

6.4 CRC16 Verification code

				
					const uint16_t crc16_tab[256];
/***********************************************************
CRC16 Coding &amp; Decoding G(X) = X^16+X^12+X^5+1
***********************************************************/
uint16_t CRC16_cal(uint8_t *ptr, uint32_t len, uint16_t crc_init)
{
uint16_t crc, oldcrc16;
uint8_t temp;
crc = crc_init;
while (len--!=0)
{
temp=(crc&gt;&gt;8)&amp;0xff;
oldcrc16=crc16_tab[*ptr^temp];
crc=(crc

Chapter 7 Android System

7.1 Application Download

The handheld ground station comes pre-installed with the following applications:

UniGCS
SIYI QGroundControl
Ping Tools

If you need to update or re-download these applications, please visit the related product pages on the Siying Technology official website (www.siyi.biz).

7.2 How to Import and Install Applications

7.2.1 Import and Install via TF Card

Save the application installation files to a TF card, insert the TF card into the TF card slot at the bottom of the handheld ground station, copy the installation files to the Android system’s storage, then use the Android file manager to locate and install the copied files.

7.2.2 Import and Install via USB Drive

Save the application installation files to a USB drive, insert the USB drive into the USB-A port at the top of the handheld ground station, copy the installation files to the Android system’s storage, then use the Android file manager to locate and install the copied files.

Note
Please keep your handheld ground station’s Android system as streamlined as possible and avoid installing too many unrelated applications to prevent interference with normal operations.

7.2.3 Import and Install via Type-C File Transfer

The ground station can connect directly to a Windows computer through the Type-C port using the file transfer function.

Steps
1. Connect the ground station to the Windows computer via the Type-C port.
2. Click “OK” to “Close video display and enable Type-C file transfer.”

3. In the Android system’s dropdown menu, tap “Android system · Charging this device via USB.”

4. Then tap “Charging this device via USB, tap for more options.”

5. Select “File Transfer.”

6. At this point, the ground station will be recognized by the Windows computer as a storage device.

7.3 Check Android Firmware Version

The SIYI handheld ground station is equipped with a dedicated Android system.

Steps
1. Enter the Android system settings menu.

2. Scroll down the page to find and enter the “About phone” menu.

3. Scroll down to the very bottom to view the Android firmware version number.

Chapter 8 SIYI Tuning Assistant

The “SIYI Tuning Assistant” is a Windows software independently developed by SIYI Technology to support almost all SIYI products for channel settings, firmware upgrades, camera tuning, gimbal calibration, and other functions.

Note:
This manual is based on “SIYI Tuning Assistant” version 1.3.9. Both the “SIYI Tuning Assistant” and firmware packages can be downloaded from the official website:
https://siyi.biz/index.php?id=downloads1&asd=191

8.1 Firmware Upgrade

The Ground unit air unit support connection to the “SIYI Tuning Assistant” for firmware upgrades.
Before upgrading the firmware, it is necessary to prepare the following tools, firmware, and software:

siyi assistant (v1.3.9 or newer)
Ground Station firmware
Air Unit firmware

Note:
The above tools and firmware are available on the SIYI official website product pages.

Fast charging data cable (Type-C to Type-C)
Adapter (Type-C to USB)

Note:
These tools are included as standard with the product shipment.
The fast charging data cable connected with the adapter can be used for sky station firmware upgrades.

Firmware upgrade steps:
1. Install the “SIYI Tuning Assistant” on your Windows device.
2. After installation, connect the USB port of the Windows device to the upgrade port at the bottom of the ground station.

Note:
Please do not click on any pop-up prompts on the screen after the connection is conplected.

3. Open the “SIYI Tuning Assistant,” switch to the “Upload” menu to check the current firmware versions and corresponding Boot program versions of the ground station and sky station.

4. If the firmware is not the latest, click “Select File” under the “Remote Controller” menu to import the latest ground station firmware, then click “Upgrade.” Wait for the upgrade process to reach 100% completion.
5. Disconnect the ground station from the Windows device. Use the fast charging data cable and USB adapter to connect the sky station to the Windows device. Then repeat the above steps to upgrade the sky station firmware.

Note:
After connecting the ground unit to the computer, if no upgradeable module information appears on the upgrade page, please check whether the green indicator light in the lower left corner of the SIYI Tuning Assistant is lit. If it is not lit, inspect the connection between the device and the computer.

If the green indicator light in the lower left corner is lit, but no upgradeable module information appears on the upgrade page, please follow the steps below to check the settings in the UniGCS:

1. Ensure that the SIYI Tuning Assistant is the latest version. The latest version can be downloaded from the official website’s download page.
2. Navigate to the Remote Control Settings page – Data Link Settings, and ensure that the connection methods for Data Link 1 and Data Link 2 are not set to “Upgrade” mode.
3. Then, go to the Remote Control Settings page – System Settings, and make sure the Remote Control SDK connection method is not set to “Upgrade” mode.

8.2 Image Transmission Firmware Upgrade

Please refer to section 3.3.11.5 for the image transmission firmware upgrade procedure.