7
TRANSMITTER
The RIR 4EXA is a fully proportional 4 function
35Mhz transmitter
The transmitter is supplied in a Mode 2
configuration. Mode 2 is also known as Throttle
Left.
The left stick controls Throttle and rudder
movement.
The right stick controls aileron and elevator
movement.
Battery state is indicated by a bank of coloured
LED’s. With green for full and red for empty.
As soon as the indicator changes to amber the
model should be landed to allow battery
replacement.
A red LED indicates dangerously low voltage.
The model should be landed immediately to replace
batteries before all control is lost.
Frequency control is by removable crystal.
The transmitter frequency is identified on the
crystal holder located on the front of the
transmitter.
8 off AA size dry cells or high capacity Nimh
batteries must be inserted before operation.
Remove the rear cover and install batteries into the
battery tray as directed by the moulded in polarity
(+ & -) markings.
A small panel of five small slide switches is set on
the front panel of the transmitter.
Switches 1 to 4 are electronic servo reversing
switches and should be adjusted to give the correct
control surface deflections relative to stick
movements.
The mix switch activates a ch1-ch2 mix to give
elevon (2 servos both functioning as ailerons and
elevators) for delta winged aircraft
For the TB20 the mix switch must be in the ‘A-Nor’
position.
SECTION 3: ASSEMBLY
Locate the wing halves and wooden dihedral brace -
wing joiner.
Test fit the joiner in the slot formed in the wing and
dry fit the wings together.
Содержание TB-20
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