Tactic TTX850 8-Ch SLT Computer - Manual (Page 13)

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Sub-trim: Finely adjusts a channel’s center position. Be aware that extreme adjustments of sub-trim
could possibly result in servo binding if the servo’s output arm moves too far in the model. This is
available for all channels.
DUAL-RATES, EXPONENTIAL
For setting dual-rates and/or exponential travel for the
aileron, elevator, and rudder channels. Dual-rates allows
a channel’s maximum travel limits to be switched between
two limits. Exponential changes the rate at which a servo
rotates per degree of control stick defl ection. The rate of
servo movement is non-linear in relation to the movement
of the stick. The higher the exponential percentage, the
more the servo will rotate as the stick is moved away
from center position.
To select the desired channel to adjust, press ENTER, then or . Press ENTER when fi nished.
To assign a different switch to change the dual-rate / exponential setting, move the cursor to the CTRL line
and press ENTER. Select the switch that will control this function as explained on page 12. Press ESC
when fi nished.
Different dual rate and exponential settings can be set for each position of the switch. Highlight the dual-
rate percentage and move the assigned switch to the position that will allow for the furthest servo travel.
Adjust this percentage to the widest travel distance as needed for this channel. Note that the slope of the
diagonal line in the graph changes as the percent is adjusted. Defl ect the control switch to the opposite
position, and adjust the percentage to the lowest travel distance needed. The diagonal line on-screen will
now show the slope for the low dual-rate setting. A high rate can allow for better control of the model while
on the ground, at low altitudes, or while performing certain maneuvers. A low rate can allow for optimum
control of the aircraft in mid-fl ight.
To set an exponential value, move the cursor to the EXPO line and repeat the steps explained above to
set a different value for each position of the control switch. This function reduces the sensitivity around the
stick’s center position, and can be handy for optimum control of the model - especially around center-stick
position, and when performing stunts or aerobatic maneuvers.
Moving the control stick for the channel shown on-screen will change the position of the vertical line in the
graph. The point where the vertical line intersects the diagonal line is shown at the bottom-left on the screen.
The “x” (horizontal) coordinate is on the left, and “y” (vertical) coordinate is on the right.
Repeat the above steps for each the aileron, elevator, and rudder channels as desired.
CH5-CH8 SET
Enter this screen to set the functions of channels 5 through 8. At the INPUT line select the desired
channel to adjust. Then, follow the steps below.
Name: A name for the function of this channel can be set as desired. The method for setting this
name is the same as for setting the USER NAME as described on page 8.
Control: Choose which switch will control the selected channel. Switches are identifi ed by letters
A through H, as printed on the transmitter next to each switch.
On screen the switches will be identifi ed as “SA” for switch A, “SH” for switch H, and so on. Defl ect the
switch which will ultimately control this function.
CHANNEL: AILE
DUAL RATE:
100% 100%
EXPONENTIAL:
-65% -65%
CTRL: SD(O)
+O% -> +O%
Dual Rate, Exponential