20
SPEKTRUM DX3R USER GUIDE
21
SPEKTRUM DX3R USER GUIDE
reverse
User Name
01: Model 01
ST
TH
AX
Reverse
REV NOR
≤
The Reverse function (also known as servo reverse)
establishes the servo’s direction relative to the
channel’s input (e.g. a right steering input should
result in a right steering angle at the car). Reverse
is available on all three channels and is normally
the first function that is checked and adjusted
during programming.
The user name, model number and model name are
also displayed in this screen.
to access the reverse functIon
In the List screen use the roller to highlight the
Reverse function.
Press the roller to access the Reverse function. The
above screen will appear.
Use the roller to select the desired channel that you
wish to reverse.
ST=Steering
TH=Throttle
AX= Auxiliary
Press the roller to highlight that channel and the
surrounding box will flash; then use the roller to
change to the desired servo direction (REV or NOR).
To return to the Main screen, press and hold the roller
for more than three seconds.
sub trIM
User Name
01: Model 01
ST 0
TH 0
AX 0
Sub Trim
≤
The Sub Trim function is normally used to correct for
minor angular inaccuracies that occur when placing
the servo horn on the servo. In many cases, the servo
horn is not exactly perpendicular to the servo (or in
the exact optimum desired position). Minor sub trim
values can be used to correct this offset inaccuracy.
However, it’s important to understand that large sub
trim values can limit the total throw of the servo
in that direction so small sub-trim values only are
recommended.
The user name, model number and model name are
also displayed in this screen.
to access the sub trIM functIon
In the List screen use the roller to highlight the Sub
Trim function.
Press the roller to access the Sub Trim function. The
above screen will appear.
Use the roller to select the desired channel that you
wish to reverse.
ST= Steering
TH= Throttle
AX= Auxiliary
Press the roller to highlight that channel and the
surrounding box will flash; then rotate the roller to
adjust the value and direction of the sub trim.
To return to the Main screen press and hold the roller
for more than three seconds.
tIMer
User Name
01: Model 01
Timer
Internal Reset
Int 0:08:19
Int 0:08:18
Timer A:
Dn Tmr 05:00
Timer B:
≤
The DX3R offers three types of timers.
Internal timer
Automatically records the time that the transmitter is
turned on. Timer A is defaulted to the internal timer.
Up timer
The Up Timer is triggered via a selectable button/
switch and counts up from 00:00 seconds, functioning
as a stopwatch. It is useful for timing a fuel run
to determine fuel mileage/pit stop strategy or, for
electrics, to time the run time of a pack to determine
gear ratio and setup information. To pause the
Up timer, press the button/switch that the timer is
programmed to. To reset the UP timer to 00:00, press
and hold the programmed button for more than three
seconds.
Down timer
Can be programmed for up to 99 minutes and 99
seconds in one-second increments. Normally this
timer is programmed for the length of the race with
electrics and is defaulted to 5:00 minutes, or the
duration of the fuel tank in gas, warning the driver that
it’s time to pit and refuel. The Down timer is started
via a selectable programmable switch. When the down
timer expires, an alarm will sound and the timer will
begin to count up. To pause the Down timer, press
the button/switch that the timer is programmed to.
To reset the Down timer to its preprogrammed value,
press and hold the programmed button for more than
three seconds. Timer B is defaulted to the Down timer,
the time is defaulted to 5:00 minutes and button F is
defaulted to actuate the down timer.
Two of the three timers can be selected and displayed
on the main screen. The user name, model number
and model name are also displayed in this screen.
to access the tIMer functIon
From the List screen rotate the roller to highlight the
Timer function.
Press the roller to enter the Timer function. The Timer
screen will be displayed as shown above.
Rotate the roller to highlight the desired Timer that
you choose to program (Timer A or Timer B).
Press the roller to enter the highlighted Timer
function.
Rotate the roller to select:
Int- Internal
Dn Tmr- Down Timer
Up Tmr- Up Timer
Note
: If Down timer is selected, pressing the
roller again will allow the time to be changed by
rotating the roller.
To reset the internal timer, rotate the roller to highlight
Internal Reset then press the roller to reset the internal
timer to 0:00:00.
See System on page 28 for details on programming
the timers to various buttons and switches.
