GRAUPNER mx-16 HOTT Programming Manual Download

Page: 32 / 180

Using the receiver for the fi rst time

Preliminary notes regarding the GR-16 receiver

For more information please visit the Internet at www.graupner.de.

Receiving system

The

mx-16

HoTT radio control set includes a GR-16

2.4 GHz bi-directional receiver which is suitable for con-
nection to a maximum of eight servos.
If you switch a HoTT receiver on, and “its” transmitter is
switched off or not within range, the red LED on the re-
ceiver lights up steadily for about one second, and then
starts to fl ash slowly. This means that no connection
with a

Graupner

HoTT transmitter exists (at this stage).

When the connection is made, the green LED glows
constantly, and the red LED goes out.
In order to create a connection, the

Graupner

HoTT

receiver must fi rst be “bound” to “its” model memory in
“its”

Graupner

HoTT transmitter; this procedure is known

as “binding”. However, binding is only necessary once
for each receiver / model memory combination (see
pages 61 or 70), and has been carried out at the factory
for model memory 1 using the components supplied in
the set. You therefore only need to carry out the “binding”
process - as described later - with additional receivers,
or if you switch to a different model memory. The pro-
cedure can also be repeated whenever you wish - for
instance, if you change the transmitter.

Receiver voltage display

Once a telemetry connection exists, the actual voltage
of the receiver power supply is displayed on the right-
hand side of the transmitter screen.

Temperature warning

If the temperature of the receiver falls below a limit value
set on the receiver (the default is -10°C), or exceeds
the upper warning threshold, which is also set on the
receiver (the default is +70°C), the transmitter generates
a warning in the form of steady beeps at intervals of

about one second.

Firmware update

Firmware updates for the receiver are carried out using
the receiver’s telemetry socket in conjunction with a PC
running Windows XP, Vista or 7. For this you require the
separately available USB interface, No.

7168.6

and the

adapter lead, Order No.

7168.6A

The latest software and information can be found in the
Download area for the corresponding product at www.
graupner.de.

Note:
Once you have registered your transmitter at http://
graupner.de/de/service/produktregistrierung you will
automatically be informed of new updates by e-mail as
they become available.

Servo connections and polarity

The servo sockets of

Graupner

HoTT receivers are

numbered. The connector system is polarised: look for
the small chamfers when inserting the connectors, and
on no account force the plugs into the sockets.
The sockets marked “1+B-” and “6+B-” are intended
for the connection of the battery. It is also possible to
connect the appropriate servos to both these sockets in
parallel with the power supply by using a Y-lead, Order
No.

3936.11

Do not connect the battery to these sockets with
reversed polarity, as this is likely to ruin the receiver
and any devices connected to it.

The power supply voltage is through-connected via all
the numbered sockets. The function of each individual
channel is determined by the transmitter you are using,
rather than by the receiver. Example: the throttle servo

socket is defi ned by the radio control system, and may
differ according to the make and type.
In the case of

Graupner

radio control systems the

throttle function is assigned to channels 1 or 6, whereas
it is allocated to channel 3 in the case of Futaba radio
control systems, for example.

Concluding notes:

The much higher servo resolution of the HoTT sys-

•

tem results in a substantially more direct response
compared with previous technologies. Please take a
little time to become accustomed to the fi ner control
characteristics offered by the system!
If you wish to use a speed controller with integral

•

BEC* system in parallel with a separate receiver bat-
tery, in most cases (depending on the speed control-
ler) the positive terminal (red wire) must be removed
from the three-pin connector, as shown in the dia-
gram. Be sure to read the appropriate notes in the in-
structions supplied with your speed controller before
doing this.
Carefully raise the central lug of the connector slight-

ly (1), withdraw the red
wire (2) and insulate the
bare contact with tape
to avoid possible short
circuits (3).

red

Observe the installation notes regarding the receiv-
er, receiver aerial and servos, which you will fi nd on
page 34.

Reset

If you wish to carry out a receiver reset, locate the

SET

button on the top of the receiver and hold it in while you

* Battery Elimination Circuit