Uploaded May 2026 | Updated September 2026, 1 week ago
For T8S and T8FB transmitter, we need to use Parameter Adjustment APP to set the parameters. You can download the Parameter Adjustment APP from RadioLink official website.
T8S BT Parameter Adjustment APP download link: https://www.radiolink.com.cn/t8s_apps
T8FB BT Parameter Adjustment APP download link: https://www.radiolink.com.cn/t8fb_bt_app
We can use iPhone, Android phone and computer to set the parameters. I use iPhone in this tutorial.
（The version of iOS APP in this tutorial is V11.2.0. You can download or update the iOS APP in Apple App store）
I have downloaded Parameter Adjustment APP on this iPhone. Here it is.
Open it. Click Connect.
(Make sure the bluetooth of the phone is turned on.)
A list of devices will pop out. Select RadioLink. T8S will beep. We need to press any one of the trim buttons of T8S. Then the beeping stops and they are connected.
We can see the servo value on the APP. Move the joystick, the servo value changes, which means the connection is successful.
Then we can set the parameters of T8S on the APP.
Click ADVANCED menu--THROTTLE SET. Here is throttle cut function.
Set the MIX from INH to OFF.
The THROTTLE here means the throttle joystick trigger position for throttle cut function.
When the throttle joystick is below the trigger position, the throttle cut takes effect and enters the throttle cut state.
It defaults to 5%, to better show the function, I set it to 50%.
SW means switch. We need to set a switch to control throttle cut. SWA, SWB and SWC can be selected. This is SWA. This is SWB and this is SWC.
I select SWA.
The position can be set to UP, CENTRAL or DOWN. I select UP, which means when SWA is pushed up, the throttle cut function is activated. When SWA is pushed down or in the central position, the throttle cut function is turned off.
And click WRITE to save the modifications. The beeping sounds means the settings are saved. Push SWA Up, the throttle cut function is turned on. Here is ON. Push SWA Down, the throttle cut function is turned on. Here is OFF.
Go to servo display. SWA is pushed down, we can see the throttle works well, and there is no throttle cut function.
Push SWA UP, the throttle cut function is activated. The throttle can work when the throttle is above 50%. Once the throttle reaches below 50%, the throttle will not work because the throttle cut takes effect.
Now the throttle stick is below 50% trigger position that we have just set, so the throttle is cut now.
You can also set the throttle to 100%. In this case, the throttle will not work once you push SWA up, no matter what position the throttle joystick is in.
I set throttle to 100%. click WRITE to save the modifications.
Go to servo display. SWA is pushed down, we can see the throttle works well, and there is no throttle cut function.
Push SWA UP, the throttle cut function is activated. No matter what position the throttle joystick is in, the throttle is cut.
Here is RATE for throttle cut. It is often used for fuel vehicle, like methanol vehicle, Nitro vehicle, gasoline vehicles. Because the throttle channel is not connected to the ESC, but to the servo that controls damper. So the RATE here relates to the servo value that you control the damper.
The RATE can be set from 0 to 100%. For example, I set it to 20%. The servo value will change when the throttle cut takes effect.
Go to servo display. Push SWA down, the throttle works well. There is no throttle cut function.
Push SWA UP, the throttle cut function is turned on. At the same time, the servo value of the channel will be added based on your RATE settings. Which is not -100, but -80. You can adjust the RATE according to your needs.
More details about T8S:
https://www.radiolink.com.cn/t8s
More details about T8FB:
https://www.radiolink.com.cn/t8fb_bt
You can send mails to after_service@radiolink.com.cn if you have any questions during using our products.
#rcplane #transmitter #radiolink
For T8S and T8FB transmitter, we need to use Parameter Adjustment APP to set the parameters. You can download the Parameter Adjustment APP from RadioLink official website.
T8S BT Parameter Adjustment APP download link: https://www.radiolink.com.cn/t8s_apps
T8FB BT Parameter Adjustment APP download link: https://www.radiolink.com.cn/t8fb_bt_app
We can use iPhone, Android phone and computer to set the parameters. I use iPhone in this tutorial.
（The version of iOS APP in this tutorial is V11.2.0. You can download or update the iOS APP in Apple App store）
I have downloaded Parameter Adjustment APP on this iPhone. Here it is.
Open it. Click Connect.
(Make sure the bluetooth of the phone is turned on.)
A list of devices will pop out. Select RadioLink. T8S will beep. We need to press any one of the trim buttons of T8S. Then the beeping stops and they are connected.
We can see the servo value on the APP. Move the joystick, the servo value changes, which means the connection is successful.
Then we can set the parameters of T8S on the APP.
Click ADVANCED menu--THROTTLE SET. Here is throttle cut function.
Set the MIX from INH to OFF.
The THROTTLE here means the throttle joystick trigger position for throttle cut function.
When the throttle joystick is below the trigger position, the throttle cut takes effect and enters the throttle cut state.
It defaults to 5%, to better show the function, I set it to 50%.
SW means switch. We need to set a switch to control throttle cut. SWA, SWB and SWC can be selected. This is SWA. This is SWB and this is SWC.
I select SWA.
The position can be set to UP, CENTRAL or DOWN. I select UP, which means when SWA is pushed up, the throttle cut function is activated. When SWA is pushed down or in the central position, the throttle cut function is turned off.
And click WRITE to save the modifications. The beeping sounds means the settings are saved. Push SWA Up, the throttle cut function is turned on. Here is ON. Push SWA Down, the throttle cut function is turned on. Here is OFF.
Go to servo display. SWA is pushed down, we can see the throttle works well, and there is no throttle cut function.
Push SWA UP, the throttle cut function is activated. The throttle can work when the throttle is above 50%. Once the throttle reaches below 50%, the throttle will not work because the throttle cut takes effect.
Now the throttle stick is below 50% trigger position that we have just set, so the throttle is cut now.
You can also set the throttle to 100%. In this case, the throttle will not work once you push SWA up, no matter what position the throttle joystick is in.
I set throttle to 100%. click WRITE to save the modifications.
Go to servo display. SWA is pushed down, we can see the throttle works well, and there is no throttle cut function.
Push SWA UP, the throttle cut function is activated. No matter what position the throttle joystick is in, the throttle is cut.
Here is RATE for throttle cut. It is often used for fuel vehicle, like methanol vehicle, Nitro vehicle, gasoline vehicles. Because the throttle channel is not connected to the ESC, but to the servo that controls damper. So the RATE here relates to the servo value that you control the damper.
The RATE can be set from 0 to 100%. For example, I set it to 20%. The servo value will change when the throttle cut takes effect.
Go to servo display. Push SWA down, the throttle works well. There is no throttle cut function.
Push SWA UP, the throttle cut function is turned on. At the same time, the servo value of the channel will be added based on your RATE settings. Which is not -100, but -80. You can adjust the RATE according to your needs.
More details about T8S:
https://www.radiolink.com.cn/t8s
More details about T8FB:
https://www.radiolink.com.cn/t8fb_bt
You can send mails to after_service@radiolink.com.cn if you have any questions during using our products.
#rcplane #transmitter #radiolink
