GRAUPNER mc-16 Programming Manual page 95

C A N ' T
R E C E I V E
D ATA
O K
... is displayed, there is no connection to a receiv-
er. Switch on the receiving system of your model or
check the radio connection to your model and re-
peat the process afterwards.
When the range test has been initiated, the trans-
mitter's transmission power will be signifi cantly
reduced and the green LED just to the right of the
main switch on the transmitter, marked RF, will
begin to blink; this will also be accompanied by
acoustic tones. At the same time, the timer in the
transmitter's display will start counting down and
every 5 seconds a two-frequency tone will sound.
STARLET Stp
#02 Flt
TEST 76s «nor mal
3.9V
K78
2:22h M
Five seconds prior to the end of the range test a
three-frequency tone will sound once every sec-
ond. After expiration of the range test's 99th second
the transmitter will again be switched to full out-
put power and the green LED just to the right of the
main switch on the transmitter will again illuminate
constantly.
6. Move away from the model while manipulating the
sticks during this timespan. If you notice an inter-
ruption anytime while still within a distance of about
50 m, try to reproduce this malfunction.
7. If there is a motor in the model, it may be necessary
to switch it on to further check noise immunity.
8. Continue moving away from the model until perfect
control is no longer possible.
9. Wait at this distance for the remainder of the test
period with the still-operationally-ready model to ex-
pire. After the range test is ended it should again
respond correctly to all RC controls. If this is not
100 % the case, do not use the system. Contact
your area's Graupner service partner.
10. Perform the range test before each fl ight and, in do-
ing so, simulate all servo movements which also
take place during fl ight. The range must always be
at 50 m on the ground in order to assure safe mod-
el operation.
Caution:
0:00
Never start the range test on the transmit-
0:00
ter during normal operation of the model.
»
HoTT
DSC output
5.5V
If necessary, use the  selection keys of the left or
right four-way button to switch to the "DSC Output"
line then, with a brief tap on the centre
right four-way button, activate the value window:
Rcv Ch Map
RF transmit
RF Range Test
DSC Output
SET key of the
Base setup model
R12 R08
ON
99sec
PPM10
SEL
Program description - Base setup models | Helicopter models
Now you can use the right selection keys to choose
between four types of modulation "PPM10", "PPM16",
"PPM18" and "PPM24". Touch the centre
the right four-way button again to complete the entry.
This choice primarily infl uences the maximum number
of control channels which can be attached to the DSC
(direct servo control) socket, and thus also available to
a fl ight simulator or teacher/pupil system. By select-
ing "PPM10" this will be control channels 1 ... 5, for
"PPM16" channels 1 ... 8, for "PPM18" channels 1 ...
9 and for "PPM24" channels 1 ... 12.
Autorotation
Autorotation is that state of descending fl ight in which
the pitch of main rotor blades are set such that the
rotor's speed matches the natural forces of air fl owing
through, like a windmill. The rotational energy stored in
the mass of the rotor by this process can then be con-
verted into upthrust by adjusting blade pitch, in order
to halt the descent and "rescue" the model.
Autorotation is a means by which real and model heli-
copters are able to land safely in emergency situations,
e. g. in the event of a motor failure. However, the pre-
requisite for this is a well-trained pilot familiar with the
helicopter's characteristics. Quick reaction and good
perceptiveness are necessary because the rotor's iner-
tia can only be used once to generate recovery lift.
When this technique is evaluated during competitions,
the motor must be switched off for autorotation. On
the other hand, for training mode it is advantageous to
keep the motor at idle for autorotation.
The Autorotation switch causes a switchover to the
autorotation fl ight phase in which control of "throttle"
and "pitch" are separate and all mixers which have an
effect on the throttle servo are switched off.
SET key of
95