User manual

47Commissioning the transmitter
GR-16 receiver supplied in the
mc-16 HoTT
set; this receiver is supplied already bound to
the first model memory.
Up to twelve servos can be operated with the
GR-24 receiver supplied in the
mc-20 HoTT
set; this receiver is supplied already bound to
the first model memory.
In order to achieve the greatest possible flexi-
bility but still preclude unnecessary inadvert-
ent operator errors, control channels 5 … 8 re-
spectively 5 … 12 have not been assigned
to any controls. This means that servos con-
nected by way of these channels will remain
in their middle positions until an operator ele-
ment has been assigned. Practically all mixers
are initially inactive for this same reason. More
about this can be found on page 118 (winged
aircraft) or 122 (helicopter models).
• The fundamental procedure for initial program-
ming of a new model memory location can be
found on page 76 and the programming ex-
amples that begin on page 282.
• When the remote control system is switched
on, being bonded or when making settings,
that the transmitter’s antenna is always far
enough away from the receiver’s antennas. If
the transmitter’s antenna is brought too close
to the receiver’s antennas this will cause re-
ceiver over-modulation and its red LED will il-
luminate. At the same time the return channel
will drop out and, as a consequence, the field
strength indicator in the transmitter’s screen
will be replaced by an “x” and the receiver’s
current battery voltage display will show 0.0 V.
The remote control is then in Fail-Save mode,
see page 208, i. e. servos will remain in their
current positions until a new, valid signal can
be received. In such a case, increase the dis-
tance (between the transmitter and the model
containing the receiver) until the indicators are
again “normal”.
• Never switch the transmitter off whilst operat-
ing a model! If this should happen accidentally,
keep your nerve and wait until the transmitter
screen is entirely blank, i. e. until the transmit-
ter has shut down completely; this takes at
least three seconds. Do not switch your trans-
mitter on again until this has occurred. If you
neglect this, there is a risk that the transmitter
will “hang” immediately after being switched
on, and you will lose control of the model. In
this case your only recourse is to switch the
transmitter off again, allow it to shut down
completely, and then switch on once more af-
ter the correct interval.