Glossary of technical terms
Expo
Generates a non-linear control function.
For Expo = 0%, the control works in a linear fashion.
The effect of negative values is that smaller control surface travels are
generated around the centre position with the same stick travel, thus
providing finer control.
The effect of positive Expo values is that control surface travels are
increased around the centre position.
The end-points remain unchanged.
Failsafe
If the receiver does not receive any signal, the servos stop at their most recent
positions (Hold function). If Failsafe positions were stored in the receiver, the
servos return to these positions after 0.75 seconds.
FastResponse
Reduces the transmission cycle from 21ms to 14ms reducing the response time
for control commands. Only 12 servos can be controlled with FastResponse.
Flight phases
Settings / data sets for a model which can be called up by operating a switch.
The data sets are optimised for particular flight tasks.
Lower throttle limit and throttle trim (idle)
You use the lower throttle limit to restrict the throttle channel to the idle speed
of the power system.
If you set the throttle limiter to minimum, the idle characteristics of an I.C.
engine can be fine-tuned using the trim in order to suit the operating conditions
(temperature, humidity). Trimming is carried out using the trim button adjacent
to the stick which you have selected (via "Mode") to control throttle and
collective pitch.
MagicSwitch
Logical switch, which can be assigned like a normal control; it combines up
to three switches in an AND function. Unused inputs are considered switched
on. In addition, switching can be delayed.
Mixer
Combination of control functions (e.g. elevator, aileron, etc.) in various
percentages; 14 free mixers are available in PROFI TX. Five of these
mixers are pre-defined and ready for immediate use. All the mixers (even
the pre-defined ones) can be changed as required.
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