HITEC ECLIPSE 7 Owner's Manual page 43

5. Repeat the first three steps for the dual rate settings on the remaining channels. Note that
you can leave one side of the dual rate switches alone. This can be used for exponential
settings (see next function).
6. Return to the regular operating mode by pressing the two
EXP — Exponential
You may be new to exponential settings. "Exponential" refers to a mathematical function
where the curve grows steeper the further away from center it gets. Expo is a way to get the
effect of dual rates without having to flip a switch. The figure below will help explain this
concept.
Much less response
around neutral (compare
with Normal line)
75%
50%
25%
0% (Linear)
You will notice that exponential has a smooth curve. For this reason it is possible to have
low sensitivity at low stick angles (like dual rates), and yet have full motion at full stick
deflection. The Eclipse 7 allows you to have two different values of exponential, chosen by the
same dual rate toggle switches on the transmitter, described earlier. You might want to set a dual
rate at one switch position with zero exponential, and an exponential value with 100% dual rate
at the other. Then you can switch between them in flight and decide which you like better.
Later, you can combine both dual rate settings and exponential on a single switch setting.
There are really two kinds of exponential, "positive" and "negative." Negative
exponential is the one shown above, and the type of expo most commonly used, where servo
movement is softer around neutral. Positive exponential is where the servos are very sensitive
around neutral and soft at extremes. It is sometimes used for helicopter tail rotors.
The Eclipse 7 allows you to set exponential for ailerons, elevator, and rudder. If you
have flight conditions active, you can select different amounts of expo for each flight condition.
Setting Exponentials
1. Enter the programming mode by pressing the two
left) at the same time. Press either
(ACRO)
Aircraft
Servo
Response
Stick Motion
Increasing
exponential
(shallower around
neutral)
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Section
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Exponential gives
smaller response for
same stick motion
around neutral
keys (the two keys on the far
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key until the EXP menu appears, as shown.
keys simultaneously.
Normal
linear
response