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4. SERVO MATCH FUNCTION
The Servo-Match function provides the facility for adjusting the centre po-
sition and end-points of the servos connected to the backer. If you have a
model aircraft with more than one servo per control surface, this makes it
possible to set up multiple servos to move to identical positions at identical
times. Since this ensures that the servos do not work against each other,
their effective life is increased, and more power is available to move the con-
trol surfaces; matched servos also draw lower current.
It is also possible to reverse the direction of rotation of individual servos.
This function is useful if you wish to employ fewer channels at the trans-
mitter. For example, the right and left elevators, or the right and left landing
flaps, can be controlled using only one radio channel. In models such as jets
and warbirds, which by their nature have a large number of working sys-
tems, this feature can be very important, but it can also make transmitter
programming much easier with other types of model.
Select
SERVO-MATCHING
in the Main menu, and the following screen dis-
play appears:
To ensure accurate servo matching, the output to be adjusted must first be
initialised. Leave the associated transmitter stick at centre. Move the cursor
to
INIT OUTPUT
and press the
SET button
. Now move the transmitter stick
to both end-points.
The graphic display shows the movement of the upper arrow, which indi-
cates the input signal. The bar inside the box shows the movement of the
output. The three lower arrows indicate the centre and end-point positions
which are ‘learned’ in this process.
Note:
if the channel has not yet been initialised, it is not possible to select
the
START SERVOMATCHING
and
REVERSE SERVO
points.
