User's Manual

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100

Installation Notes

order:

Always switch the transmitter on ﬁ rst,

then the receiver.

When switching the system off:

Always switch the receiver off ﬁ rst,

then the transmitter.

When programming the transmitter you must always

ensure that any electric motors in the system cannot

possibly burst into life accidentally, and that an I.C.

engine ﬁ tted with an automatic starter cannot start

unintentionally. In the interests of safety it is always best

to disconnect the ﬂ ight battery, or cut off the fuel supply.

on. The switch toggle must be free to move over its

full range of travel.

Always install servos using the vibration-damping 3.

grommets and tubular metal spacers supplied. The

rubber grommets provide some degree of protection

from mechanical shock and severe vibration. Don’t

over-tighten the servo retaining screws, as this will

compress the grommets and thereby reduce the vib-

ration protection they afford. The system offers good

security and vibration protection for your servos, but

only if the servo retaining screws are ﬁ tted and tigh-

tened properly. The drawing below shows how to in-

stall a servo correctly. The brass spacers should be

pushed into the rubber grommets from the underside.

Servo mounting lug

Retaining screw

Rubber grommet

Tubular brass spacer

The servo output arms must be free to move over 4.

their full arc of travel. Ensure that no parts of the me-

chanical linkage can obstruct the servo’s movement.

The sequence in which the servos are connected to the

receiver is dictated by the model type. Please see the

socket assignments listed on pages 43 and 47.

Be sure to read the additional safety notes on pages 3

… 9.

If the receiver is ever switched on when the transmitter

is off, the servos may carry out uncontrolled movements.

You can avoid this by switching the system on in this

Installation Notes

Installing the receiver

Regardless of which Graupner receiving system you are

using, the procedure is always the same:

Please note that the receiver aerials must be arranged

at least 5 cm away from all large metal parts and leads

which are not attached or connected directly to the

receiver. This includes steel and carbon ﬁ bre compo-

nents, servos, fuel pumps, cables of all sorts, etc. Ideally

the receiver should be installed in an easily accessible

position in the model, away from all other installed

components. Under no circumstances run servo leads

immediately adjacent to the receiver aerials, far less coil

them round it!

Tests have shown that a vertical (upright) position of a

single aerial produces the best results when long ap-

proaches are ﬂ own with a model. If the receiver features

a diversity aerial system (two aerials), the second aerial

should be deployed at an angle of 90° to the ﬁ rst.

The servo sockets of Graupner receivers are numbered.

The power supply is through-connected via all the num-

bered sockets, and in principle can be connected to any

of the servo sockets. It is also possible to connect the

power supply via a Y-lead, Order No. 3936.11, in parallel

with a servo.

The following section contains notes and helpful

ideas on installing radio control components in the

model:

Wrap the receiver in foam rubber at least 6 mm thick. 1.

Fix the foam round the receiver using rubber bands,

to protect it from vibration, hard landings and crash

damage.

All switches must be installed in a position where 2.

they will not be affected by exhaust gases or vibrati-

113

Program description: Telemetry menu

Telemetry

The “Telemetry” menu is used to call up and program

transmitter and receiver data, and data generated by

optional telemetry sensors (see Appendix), in real time.

Receiver data are transmitted to the transmitter via the

HoTT receiver’s integral downlink channel.

One telemetry sensor can be connected to the Tele-

metry input of the following receivers: GR-12S HoTT

(Order No. 33505), GR-12 HoTT (Order No. 33506) and

GR-16 (Order No. 33508). Two telemetry sensors can

be connected to the HoTT GR-24 HoTT receiver (Order

No. 33512).

Since this and future receivers can be updated by the

user, the associated “Telemetry” menus can constantly

be kept up-to-date, and expanded with the introduction

of additional functions or languages in future.

Note:

If you register your product under http://www.graupner.

de/en/service/product_registration you will automatically

be informed about new updates by e-mail.

Before updating the transmitter software you should

always back up all occupied model memories to a

compatible laptop or PC in order to avoid a possible loss

of data.

In addition to the back-ups mentioned above, ﬁ rmware

updates are transferred using the transmitter’s PC

socket and the optional USB adapter, Order No. 7168.6

and the connecting lead, Order No. 7168.6A, in con-

junction with a PC running the Windows XP, Vista or 7

operating system.

The programs required for this and related information

can be found in the Download area for the correspon-

ding products at the website www.graupner.de. We

always recommend that you load the latest ﬁ rmware into

your equipment, to ensure that your system is constantly

kept up-to-date.

Important information:

These instructions cover the functions available at •

the time of going to press.

As mentioned in the sections entitled “Binding mul-•

tiple receivers” on pages 106 and 109, it is possib-

le to bind more than one receiver per model. Howe-

ver, in subsequent operations only the receiver

which was bound last is able to make a telemetry

connection to the transmitter. On the other hand,

this also means that only the last bound receiver can

be addressed using the Telemetry menu. You may

therefore need to change the binding sequence be-

fore you can enter settings which relate to a particu-

lar receiver.

When setting up the radio control system, ple-•

ase ensure at all times that the transmitter aerial

is an adequate distance from the receiver aerials.

A safe distance is about one metre. If you neg-

lect this, you risk interference with the downlink

channel, and consequent malfunctions.

Since the transmitter and receiver only exchange te-•

lemetry data after each fourth data packet, data

transmission inevitably requires a certain amount of

time, which means that there will be some delay in

responding to button-presses and set-up changes.

This does not constitute an error.

Changes to model and sensor programming must •

only be carried out when the model is on the ground.

Do not make any alterations unless the motor is swit-

ched off and the ﬂ ight battery is disconnected. If you

ignore this, unwanted effects of programming chan-

ges cannot be excluded.

For example, if you accidentally initiate an active ser-

vo test at the receiver, the model could crash and

cause personal injury or property damage. Please

see the Safety Notes on pages 71 … 74 of this ma-

nual and the various individual instructions.

All settings which you enter using the “• Telemetry”

menu, such as Fail-Safe, servo direction, servo tra-

vel, mixer and curve settings etc., are stored exclu-

sively in the receiver, and are therefore carried over

if you install the receiver in a different model. For this

reason we strongly recommend that you re-initiali-

se your HoTT receiver if you wish to use it in another

model; see “Reset” on page 93.

We therefore recommend that you program direc-•

tions of servo rotation, servo travel, mixer and cur-

ve settings using only the mx-10-speciﬁ c stan-

dard menus “Servo settings” (page 111), “mixers”

(page 105) and “Dual Rate” (pages 11). If you ignore

this, the settings may overlap and interfere with each

other; in the most favourable case this can result in

confusion when operating the model, and in the least

favourable case it could cause problems.

The channel-mapping function of the optional Smart-•

Box can be used to share out control functions bet-

ween multiple receivers in any way, or even to assign

the same control function to several receiver outputs;

for example, you may wish to operate each aileron

with two servos instead of just one, etc. Once again

we strongly recommend that you act as cautious-

ly as possible when carrying out the program-

ming.

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