INSTRUCTION MANUAL
F-14
where you put it instead of returning to centre automatically.
This type of function is required, for example, to control the
throttle of a glow motor.
The set is supplied with a ratchet spring and retaining screw for
this purpose. You can place the throttle function on the right or
left stick to suit your preference.
The position of the throttle ratchet on each stick is shown in
Fig. 7.
The first step is to screw the throttle ratchet spring in place
as shown, and then to disengage the corresponding centring
spring. This is done by rotating the screw fully to the left; the
spring can then be lifted out with a pair of tweezers. The last
step is to remove the neutralising arm. The vertical plane of this
stick unit is now set to „non self-neutralising“ action.
Unrestricted function assignment, servo reversing
As standard the transmitter is supplied with all the internal ca-
bles connected. In its default state the order, or assignment,
of the stick functions (number adjacent to the stick unit trims)
corresponds to the numbers printed next to the output sockets
on the receiver. If the stick unit connectors are left connected to
the main circuit board in the standard arrangement, the servos
should be connected to the correspondingly numbered recei-
ver output sockets.
The table below shows a typical function assignment for a mo-
del aircraft:
Stick
Control function
Receiver output
No. 1
Aileron
1
No. 2
Throttle
2
No. 3
Elevator
3
No. 4
Rudder
4
However, if you are used to a different arrangement of the
transmitter controls it is possible to arrange the control func-
tions in a different order. The function assignment can also be
changed by swapping over the connections at the main circuit
board. The net result is that the sequence of the receiver out-
puts is completely „free“, and can be re-arranged to suit your
requirements. The position of the connectors on the main cir-
cuit board is shown in Fig. 5. The sequence of the auxiliary
functions (channels 5 - 8) can also be selected at will.
It is possible to reverse the direction of operation of all chan-
nels individually; to do this simply unplug the appropriate con-
nector at the main transmitter circuit board, turn it through 180°
and plug it in again. Take care that the connector is actually
located on the pins and not to one side of them.
3. RECEIVER AND SERVOS
The F-14 set is supplied complete with the transmitter, an
R-168 DF receiver and one S 148 servo, along with various
accessories.
Specification
R-168 DF receiver
Functions:
16 / 8 servos
Reception frequency:
40 MHz
Intermediate frequency:
455 kHz
Frequency channels:
22 (40 MHz)
Modulation:
FM (PPM)
Channel spacing:
10 kHz
Supply voltage:
4.8 - 6 V
Current drain:
10 mA
Weight:
25 g
Dimensions:
56 x 29 x 20 mm
S 148 servo
Neutral pulse width:
1.52 ms, pos. pulse
Rotational travel:
2 x 45°
Supply voltage:
4.8 - 6 V
Torque:
30 Ncm = 3.0 kg/cm
Transit time 45°:
0.165 sec
Dimensions:
40.4 x 19.8 x 36.0 mm
Weight:
44.4 g
Connecting the receiving system
The order in which the servos are connected to the receiver
varies according to the transmitter stick which you wish to con-
trol the various functions. The method of altering the default
assignment is described on page 5. If you are a beginner and
intend to fly model aircraft we recommend that you keep to
the transmitter arrangement (stick mode) which is used by the
experienced modellers who fly at your local flying site. This en-
sures that you will be able to find expert assistance for the first
few flights. Fig. 8 shows the arrangement of a typical receiving
system.
To keep the drawing comprehensible the drawing only shows
the servos for the four basic functions.
Installing the receiving system
The receiver and battery must be packed in thick foam rubber
to protect them from the effects of vibration. Make sure that the
battery cannot move in flight. You may wish to pack the recei-
ver in a small plastic bag and seal the cable exit with a rubber
band or sticky tape to protect it from water, oil or fuel. Take the
receiver out of the bag again at the end of the session to avoid
harmful condensation forming inside it.
All cables should be routed and deployed in a neat and work-
manlike fashion; take care that no wires are under strain or
bent at a sharp angle. Don’t just run cables haphazardly all
round the inside of the model; it is far better to arrange them
neatly and tape them to the inside of the fuselage sides.
6
4
2
1 position for ratchet func. 2
4 screw for spring func. 3
2 screw for spring func. 1
5 screw for spring func. 4
3 screw for spring func. 2
6 position for ratchet func. 3
Fig. 7
3
5
6
1
Fig. 8
receiver battery
charging
socket
ch 3 and 4
ch 2
ch 1
check
polarity
