AIRTRONICS MT-4s Betriebsanweisung PDF herunterladen (Seite 41)

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The Trim function allows you to view the currently programmed Trim value of each of the four channels and, if desired, allows

you to change the Trim values using the Push-Button Rotary Dial from within the Trim menu. In addition to the Trim function,

the Servo Sub-Trim function allows you to fine-tune the Neutral position of each servo.

Adjusting the Servo Sub-Trim Values:

It's not unusual that when you center a servo and install the servo horn, the servo horn is not exactly centered. The Sub-Trim

function allows you to center the servo horn exactly, without altering the servo End Point travel. This is especially useful when

using a Mix, such as Four Wheel Steering Mixing. For example, you can use the Sub-Trim function to adjust the Neutral Trim

setting of your Front and Rear Steering servos independently to ensure your Model tracks straight.

1) Install the servo horn (or servo saver for the Steering servo) onto your servo,

making sure that the servo horn (or servo saver) is as close to being centered

as possible. In some cases, you can get the servo horn closer to being centered

by rotating the servo horn 180º and reinstalling it.

2) From the Top Screen, press the ENTER key to open the Programming Menu list.

3) Scroll UP or DOWN to highlight the TRIM menu, then press the ENTER key. The TRIM

menu will be displayed and [ST]:TRIM 0 will be highlighted.

4) Scroll UP or DOWN to highlight the desired channel you would like to change

the Sub-Trim value for. Choose from either [ST]:[SUB-T] 0 (Steering), [TH]:[SUB-T] 0

(Throttle), [A1]:[SUB-T] 0 (Auxiliary 1) or [A2]:[SUB-T] 0 (Auxiliary 2).

PROGRAM

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Before changing the Sub-Trim values you should set the Steering

and Throttle Trim to 0 using the Trm1 and Trm2 Trim Switches.

Trm1

[

]

Trm2

[

]

5) Press the ENTER key, then scroll UP or DOWN to increase or decrease the Sub-Trim

value to center the servo horn.

TRIM SUB-T setting range for the Steering channel is R150 to L150, for the Throttle

channel is H150 to B150 and for Auxiliary 1 Channel 3 and Auxiliary 2 Channel 4 is H150

to L150. The default setting for all channels is 0.

After adjusting the Sub-Trim value, use the End Point Adjustment function to set the desired amount of maximum servo

travel in both directions. For more information, see the End Point Adjustment section on pages 19 through 21.

Adjusting the Trim Values:

The MT-4S transmitter features Digital Trim Memory. Any amount of Trim that you set using the Trim Switches is automatically

stored in memory for that specific channel and for that specific model. The Trim values for each model will automatically be

loaded when the transmitter is turned ON.

Before adjusting the Trim values, you should first adjust the servo Sub-Trim values to center the servo horns. For more

information, see the Adjusting the Servo Sub-Trim Values section above.

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