Spektrum DX7 - Sub Trim; To Access the Sub-Trim Function

83SPEKTRUM DX7 • HELICOPTER PROGRAMMING GUIDE
Sub Trim
The Sub-Trim function allows you to electronically adjust the centering of each servo. Sub trim is individually
adjustable for all seven channels, with a range of + or - 125% (+ or – 30 degrees servo travel).
Caution: Do not use excessive sub-trim values as it is possible to overdrive the servo’s
maximum travel.
Sub-trim value (max ±125).
The channels available are:
• THRO: Throttle
• AILE: Aileron
• ELEV: Elevator
• RUDD: Rudder
• GEAR: Retractable Landing Gear
• PIT.: Pitch
• AUX2: Auxiliary 2
[SUB TRIM]
≥THRO AILE
0 0
0 0
ELEV RUDD
Press to adjust sub-trim position
Press to enter SUB TRIM
Press to enter
Function Mode
Press to select
desired channel
To Access the Sub-Trim Function
Press the DowN and SELECT keys simultaneously to access the Function Mode.
In Function Mode, use the UP or DowN key to select the SUB TRIM screen.
Press the SELECT key to access the desired channel.
Press the INCREASE or DECREASE keys to adjust the sub-trim position for that selected channel.