User's Manual

personal injury.
Read the operating instructions supplied with your radio control system for more details.
The gyro system remains active in a fail-safe situation.
2.3 Range-checking
The range of your Graupner/SJ HoTT 2.4 system can be checked as described in the following
instructions. We recommend that you ask a friend to help you with the procedure.
Ideally the receiver should already be bound to the transmitter. Install it in the model in its nal position.
• Switch the radio control system on, and wait until the red LED on the receiver goes out. The servo
movements can now be observed.
• Place the model on a at surface (pavement, close-mown grass, earth), and ensure that the
receiver aerials are at least 15 cm above the ground. It may be necessary to pack up the model
to achieve this for the period of the range-check.
• Hold the transmitter away from your body at hip-level. Don’t point the transmitter aerial straight at
the model; instead rotate or angle the aerial tip in such a way that it is vertical when you operate
the transmitter controls.
• Select range-check mode, as described in the transmitter instructions.
• Walk away from the model, moving the transmitter sticks. If you detect an interruption in the radio
link at any time within a distance of about 50 m, see if you can reproduce the problem.
• If your model is tted with a motor or engine, switch it on or start it, so that you can check effective
range when potential interference is present.
• Walk further away from the model to the point where full control is no longer possible.
• At this point you should manually switch off range-check mode.
The model should now respond to the controls again. If this is not 100% the case, do not use the system.
Contact the Graupner/SJ Service Centre in your locality and ask their advice.
We recommend that you carry out a range-check before every ight, simulating all the servo movements
which occur in ight. To guarantee reliable model operation, radio range must always be at least 50 m
on the ground.
2.4 INSTALLATION IN THE MODEL
The gyro-receiver must be installed “square” relative to the model, i.e. at right-angles to the aircraft’s
longitudinal axis, otherwise the gyros will be unable to function as intended (Order No. 33577 must also
be horizontal relative to the fuselage centreline to allow the accelerometer to work correctly).

OK
Also required for Order No. 33577
OK
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Manual Receiver GR-12+ 3xG Graupner HoTT 2. 4 5