FMA Direct T-80RF, Руководство пользователя

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T-80RF user’s guide – 6 – FMA Direct
Setting up the radio system
A. Set transmitter frequency shift.
The T-80RF works with any narrowband FM receiver with
PPM decoding. You must, however, set the transmitter’s fre-
quency shift to match the receiver you will be using. Check the
receiver’s specifications to determine whether it uses positive or
negative shift. Universal receivers can be set to either positive
or negative shift, so check the receiver to determine its configu-
ration.
1. Locate
the PPM switch in the Functions section on the T-
80RF front panel.
2. Set the switch as follows:
B. Set mixing.
If your airplane is equipped with elevons or a V-tail, you’ll need
to activate mixing. If your plane has conventional controls
(ailerons, elevator, rudder), mixing must be off.
1. Locate the
Mix switch in the Functions section on the
T-80RF front panel.
2. Using a very small flat-blade screwdriver, set the
Mix
switch as follows:
CAUTION: Be sure to check and, if necessary,
change the PPM frequency shift setting when using a
different receiver.
For a... such as... move switch...
Negative shift
receiver FMA, Futaba, Hitec
and most others Down (off)
Positive shift
receiver JR, Airtronics/Sanwa Up (on)
Note: If your flying wing or V-tail aircraft is equipped
with an electronic mixer, set T-80RF mixing to off.
CAUTION: Be sure to check and, if necessary,
change the Mix switch when you use the transmitter
with a aircraft having a different control configuration.
For... set Mix switch...
Conventional controls (ailerons,
elevator, rudder) or electronic mixer in
aircraft Down (off)
Elevons or V-tail Up (on)
About mixing
The T-80RF has 50-50 bi-directional mixing between the eleva-
tor and aileron channels. For each degree of elevator motion,
the aileron channel moves an equal amount. And for each de-
gree of aileron motion, the elevator moves an equal amount. In
the model, two servos move the elevons or V-tail surfaces. With
this kind of control configuration, the servos are called the right
servo and left servo (instead of aileron servo and elevator
servo).
With mixing, when you move the transmitter’s elevator stick, the
control surfaces move to make the airplane go up or down.
When you move the transmitter’s aileron stick, the control sur-
faces move to make the airplane yaw/roll left or right.
Tip: Mixing frees the rudder channel for another func-
tion. You could, for example, use the rudder channel
for flaps, retracts, to drop a parachute or push the
shutter button of an on-board camera.