GRAUPNER MC-22S, Programming Manual

Page: 15 / 180

15 Operating notes
Re-positioning the telescopic aerial
Screw the ten-section telescopic aerial into the ball-
and-socket base. The angle of inclination of the aerial
can be adjusted mechanically as follows: loosen the
cross-point screw to the side of the socket, swivel the
aerial to your preferred angle, then carefully tighten
the screw again.
Notes:
• When you switch on the transmitter, do not activa-
te the RF module without the aerial screwed into its
socket. The telescopic aerial should always be ex-
tended to its full length for controlling a model “in
earnest”, and even for protracted testing.
• The fi eld strength radiated by the transmitter is at
its lowest in an imaginary line extending straight
out from the tip of the transmitter aerial. Never
point your aerial straight at the model in an attempt
to obtain good reception; the opposite is true.
Installing the transmitter support bars
The transmitter can be fi tted with the optional trans-
mitter support system, Order No.
1127 . This is the
procedure: open the transmitter and remove the case
back, which is prepared to accept the support system
bars. Locate the four holes in the case back which
are designed to accept the support bars, and push a
cross-point screwdriver through them from the rear to
clear the openings, twisting it gently to act as a drill.
Installing NAUTIC modules, external switches,
switch modules and rotary modules
The transmitter case is supplied with all the holes for
the installation of optional modules already present.
Start by disconnecting the transmitter battery to avo-
id short-circuits.
The holes are sealed by blind grommets which can
easily be pushed out from the inside.
Using a suitable blunt instrument, press out the mo-
dule covers on the front face of the transmitter from
the inside by pushing through the existing holes.
Place the new bezel in position, and check that it fi ts
correctly. Remove the backing paper from the adhe-
sive surface of the bezel, position it carefully, then
press it down fi rmly. Peel the protective fi lm from the
printed front surface of the bezel. The module can
now be fi tted in the prepared module well from the in-
side, ensuring that the row of sockets on the module
faces the centre of the transmitter.
The support bars are held in place under strong tensi-
on by a long spring. If you fi nd the spring tension un-
comfortably high, shorten the spring accordingly.
Slide the plastic retai-
ner bracket for the metal
bars between the lugs in
the back panel, and fi t two
screws from the underside
into each bracket.
Now push the metal bars
of the support system
through the holes in the
back panel, working from
the inside.