Other Model Options
(Menu/Advanced Settings/Other Model Options)
This menu contains extended features for configuring the transmitter and model motor functions.
Auto-Trim Switch:
Assigning a switch to this function and activating it will initiate automatic trimming of the model. This means the model will be gradually and automatically trimmed according to the current deflections of the control sticks during flight.
Teacher-Student Switch:
Allows you to assign a switch for Trainer/Student mode. A transmitter with the switch active functions as the teacher, while a transmitter with the switch inactive functions as the student. Further settings for Teacher/Student mode can be found in Advanced Settings/Wireless Modules/Teacher-Student.
Tip: In most cases, the recommended switch for this function is a non-latching 2-position switch on the teacher’s transmitter.
Telemetry Recording Switch:
Activating the assigned switch starts the recording of telemetry data into the transmitter’s memory. These data can be reviewed later in JETI Studio or on the transmitter’s display under the “Data Analysis” menu.
Tip: Recording status is shown by an icon in the center of the top status bar:
- Lit square = recording off
- Flashing circle = recording active
- Cross symbol = telemetry is disabled by the user
Start/Stop Mode:
Telemetry recording can be turned on/off at any time using the assigned switch or the F4 (Start) / F5 (Stop) buttons.
“Auto” Mode:
Telemetry recording is started by the assigned switch or F4 (Start) button and continues until the transmitter is turned off.
Tip: The recommended mode is “Auto”, with the telemetry recording switch assigned to the throttle or elevator stick. In this case, recording starts with the first throttle increase or elevator deflection and remains active for the entire flight.
Motor Cutoff:
This function sets a servo position for safely stopping a combustion engine or locking an electric motor to prevent accidental startup. When activated, the servo moves to a fixed position (Throttle Stop Position) regardless of the throttle stick position.
Idle Offset:
Sets the minimum throttle deflection. Once activated, the throttle is controlled across the full range of the stick, but the minimum throttle value will never go below the set Idle Offset.
Stick/Switch Setup
(Menu/Advanced Settings/Stick & Switch Setup)
This menu allows you to configure all transmitter control elements, their pre-flight position checks, and assign virtual switches to proportional controls.
Tip: The switches on the transmitter body support auto-detection. If the layout or types of switches do not suit you, they can be freely rearranged or replaced with other types. We recommend using a special tool and only original switches from the range available at: https://shop.jetimodel.cz/vysilace/. Upon startup, the transmitter automatically identifies any changed switch types or positions and applies the appropriate corrections (not applicable to DS-12).
Note: Switches intended for mounting inside stick gimbals do not support auto-detection. These must be configured manually in this menu.
Control Element: The name is generated automatically and matches the label printed on the transmitter.
Element Type: When set to "Auto", the control type is chosen via auto-detection. You can also manually change the type from the list (manual changes are limited for DS-12). The recommended option is "Auto" (or "Default" for DS-12).
Note: Changes to control element types apply to all models and flight modes, except for switches built into gimbal sticks (controls Sk and Sl). These can be configured differently for each model (not applicable to DS-12).
Switch On/Off: Any proportional control can also act as an on/off switch for another function. In this menu, you can define the control positions for enabling and disabling a virtual switch.
Tip: If you set different values for “Switch On” and “Switch Off”, the switch will behave as a three-position switch. If the values are the same, it acts as a two-position switch.
Status: Displays the current deflection of the control and the status of the virtual switch.
Pre-Flight Position: For each control, you can define a required position it must be in when the model is powered on. If any control with an active “Pre-Flight Position” setting is not in the correct position at startup, the model will not activate, and the conflicting control will be highlighted on the transmitter screen. Moving the highlighted control(s) to the correct position or pressing F5 (OK) will activate the model.
Tip: Use of the “Pre-Flight Position” feature is particularly recommended for the throttle stick or gear deployment switches. This helps prevent the ESC from entering programming mode or the gear from retracting unintentionally when the transmitter is turned on.
Wireless Modes/Trainer
(Menu / Advanced Properties / Wireless Module / Teacher-Student)
The items “Main Module Pairing” and “Enable 900MHz Backup” were described earlier in the quick guide “Creating a New Model.”
Transmitter Mode
- Menu for RF module configuration
Default: Both 2.4GHz RF modules in the transmitter alternate communication with a single receiver. This mode can also be used with two receivers or satellites set as “Master” and “Slave.” In the event of a failure of one RF module, the other fully takes over its function.
Tip: This mode is recommended for most models.
Double Path: This mode is suitable for models equipped with two 2.4GHz receivers. In this mode, the primary RF module alternately communicates first with the main receiver, then the backup one. The secondary RF module does the same but in reverse order.
Tip: This mode is ideal for large models equipped with two 2.4GHz receivers or satellites.
Connecting the outputs of two receivers in “Double Path” mode:
- Each receiver can control its own servos, e.g., each half of the elevator.
- Using the Enlink 2RS plus-DUO combiner, both receivers can control the same shared servo.
Tip: The F1 button (antenna icon) allows you to disable transmission of each RF module independently to verify the proper operation of all Duplex transmission paths.
Teacher/Student Mode
Duplex transmitters support wireless linking of two transmitters for teacher-student operation.
Note: The DS-12 transmitter can only function as a student in wireless linking. It can only act as a teacher when connected via a PPM cable.
Procedure for Wireless Linking of Two Duplex Transmitters in Teacher/Student Mode:
- The model must be paired with the transmitter that will serve as the teacher and be controlled by it.
- In the menu Menu / Advanced Properties / Wireless Modes-Trainer, select the Teacher mode.
- Assign a switch to the function Teacher-Student Switch. This switch will transfer control from the teacher to the student.
Tip: A non-latching two-position switch (e.g., Sg) is recommended. The teacher holds the switch to give control to the student and simply releases it to immediately regain control in a critical situation. - In the Active column, define which functions may be passed and controlled by the student.
- X = The student will not be able to control this function.
- Mix ü = The student can control the function, and the teacher can provide corrections. Commands will be mixed.
- Replace ü = After handing over control, the student fully takes over the function. Control reverts back to the teacher once the switch is released.
- In the Value column, you can adjust the throw limits of each function for the student.
- If the control layout differs on the student transmitter, it can be remapped in the Channel column on the teacher’s transmitter.
Teacher/Student Activation Procedure:
- The model is trimmed, test-flown, and fully controllable from the teacher's transmitter. Both transmitters and the model are turned off.
- Turn on the teacher transmitter and the model. Verify model control functionality.
- On the teacher transmitter, go to Menu / Advanced Properties / Wireless Modes-Trainer and select Teacher mode.
- In the same menu, activate Pair Secondary Module.
- Turn on the student transmitter.
- On the student transmitter, go to Menu / Advanced Properties / Wireless Modes-Trainer and select Student mode.
- On the teacher transmitter, confirm Use this receiver?
Tip: For future flights with the same model and wireless teacher-student mode, simply power on the teacher transmitter and the model, set the mode to Teacher on the teacher's transmitter, and power on the student transmitter. All other settings are remembered by both systems.