General Note; Functions; Binding - GRAUPNER HOTT GR-12SH+ Manual

Thank you for purchasing the receiver GR-12SH+ or SC+ for the Graupner HoTT 2.4 System. Please read
through this entire manual before you attempt the installation and usage of your Graupner HoTT 2.4 System!
These operating instructions are part of this product. They contains important notes to the operation and handling.
Please take this into consideration when you pass on the product to third parties. Neglect of the operating
instructions and the safety instructions lead to expiring the warranty.
Graupner constantly work on the advancement of all remote control systems; changes of the scope of delivery
in form, technology and equipment we must reserve ourselves therefore. Please have understanding
for the fact that from data and illustrations of this operating instructions no requirements can be derived.
Please keep these instructions for further reference!
Intended use
The receiver is specifi cally designed for slow-fl y models whose components are fi tted with SH or ZH connectors.
The maximum range is around 300 m, which is appropriate to this type of model. The receiver must not be
used in any model which requires greater range, or whose servos draw a current which exceeds the maximum
permissible for SH connectors (#33565 max. 0.5 A) or ZH connectors (#33566 max. 1 A).
This product works with any Graupner HoTT 2.4 GHz transmitter, but with no others. If you do not own a
Graupner HoTT 2.4 system, the receiver will not function. This product is not compatible with any other 2.4 GHz
radio control system. It is not suitable for young people under fourteen years. If a young person below that age
wishes to use it, he or she must be supervised by an adult.
Before using the receiver for the fi rst time, please read and observe all the warnings and safety notes in these
instructions and on the packaging.
WARNINGS
• Do not connect servos to this receiver whose current drain exceeds the maximum permissible for
SH connectors (#33565 max. 0.5 A) or ZH connectors (#33566 max. 1 A).
• If channel 1 is used as an electronic speed controller, the continuous current of the motor connec-
ted to it must never exceed 2 A, otherwise the receiver could be ruined!
• If several independent models / receivers are operated close together - e.g. for glider towing - the receivers
must be kept a minimum of 50 cm apart, otherwise there is a danger of interaction between them. For the
same reason the pilots on the ground should stand at least 5 m apart.

1. GENERAL NOTE

When switching on or adjusting the radio control system it is essential to keep the transmitter aerial at least 15
cm away from the receiver aerials at all times. If the transmitter aerial is too close to the receiver aerials, the
receiver will be overloaded, causing the red LED starts fl ashing. The transmitter responds by emitting a beep
once every second; the red LED also goes out. The radio control system is now in Fail-Safe mode.
If this should occur, simply increase the distance between the aerials until the audible warning signal ceases,
and the red LED on the transmitter lights up again; at the same time the red LED on the receiver should go
out.

2. FUNCTIONS

2.1. Binding

When you wish to use the Graupner HoTT 2.4 GHz receiver with a particular transmitter, the fi rst step must
always be to "bind" the unit to "its" Graupner HoTT 2.4 GHz RF module (transmitter). This "binding" procedure
only needs to be carried out once for each combination of receiver and RF module. The units supplied in the
set are already bound to each other at the factory, i.e. the binding procedure described in the following section
only needs to be carried out when you wish to use an additional receiver. However, it can also be repeated at
any time if required, e.g. after changing transmitters. Please refer to the „BINDING" section in your RC system
or module instructions for the procedure.
When binding is required, this is the procedure:
• Switch the transmitter and receiver on.
• Unless the receiver has already been bound to the transmitter, it automatically enters BIND mode when
initially switched on. If you have already completed the binding procedure for this combination of transmitter
and receiver, the red LED on the receiver goes out, and the model can be operated immediately. If the LED
does not go out, please follow this procedure:
• Transmitter with HoTT module: locate the BIND / RANGE button on the back of the transmitter, and hold
it pressed in while you press and hold the SET button on the receiver. Both LEDs on the back of the trans-
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Manual Graupner HoTT 2.4