Spektrum SPM4000C DX4S Addendum User Manual

Raceware, Active vehicle control (avc)

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Spektrum DX4S • tranSmitter inStruction manual


Firmware Update Version 1.2: Active Vehicle Control



Visit community.spektrumrc.com to download the latest RaceWare Firmware version.

Active vehicle control (Avc)


ST Gain

TH Gain

• Priority

1. Select AVC from the LIST menu.
2. Change the State field to ACT .
3. Adjust the St Gain and/or th Gain Sensitivity
The default value is 0% (

ST Gain and TH Gain OFF). As

the value increases, the

AVC steering stability and throttle

management increases.

Adjust the

ST Gain until you reach the ideal amount of

steering control. If the front wheels begin to shake, the


Gain value is too high. Reduce the

ST Gain value until the

front wheels stop shaking. You can assign

ST Gain and TH

Gain to the same switch, enabling you to adjust both values
at the same time.

4. Switch: Assigning ST Gain and TH Gain to a switch enables

you to adjust the sensitivity without using the

AVC menu. ST

GAIN and

TH GAIN can be assigned to the same switch to

adjust both simultaneously.

5. Adjust the Steering Priority
The Priority default value is 0%, meaning

AVC is active when

the steering is close to center. As you turn the steering wheel
away from center (neutral), the transmitter controls have
priority over the AVC system. Increasing the Priority value
decreases how active AVC is as the steering wheel is turned
left and right. For example, if you increase Priority to 80%,
you reduce the AVC steering control by 80% at full left or full
right steering. Increasing the Steering Priority enables you to
make tighter turns.

List Menu

AVC Screen

ST Gain when active
drives the

Aux 1

TH Gain when active
drives the

Aux 2

Priority adjusts

ST Gain

based on the steering

©2013 Horizon Hobby, Inc.

RaceWare, DSMR, Active Vehicle Control and AVC are trademarks of Horizon Hobby, Inc.

The Spektrum trademark is used with permission of Bachmann Industries, Inc.

The SD Logo is a trademark of SD-3C, LLC.

Created 12/13 43267 SPM4000

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