Thank you very much for purchasing the Graupner mc-28 HoTT
transmitter.
Read this manual carefully to achieve the best results with your
transmitter and first of all to safely control your models. If you
experience any trouble during operation, take the instructions to
help or ask your dealer or Graupner Service Centre.
NOTICE
This manual is composed by two parts. Part 1 is contained in the
product's package content. Part 2 can be found in its last version on
www.graupner.de by the related item page.
Due to technical changes, the information may be changed in
this manual without prior notice. Keep updated by regularly
checking our own website, www.graupner.de to be always
updated with the products and firmware.
This product complies with national and European legal requirements.
To maintain this condition and to ensure safe operation, you must
read and follow this user manual and all the safety notes before using
the product!
Service Centre
NOTICE
This manual is part of that product. It contains important information
concerning operation and handling. Keep these instructions for future
reference and give it to third person in case you gave the product.
Graupner Central Service
Graupner/SJ GmbH
Henriettenstraße 96
D-73230 Kirchheim / Teck
Graupner USA
3941 Park Dr Suite 20-571
El Dorado Hills, CA 95762
Graupner in InternetFor the service centers outside Germany please refer to our web
site www.graupner.de
S1033_jh_V1_de
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Intended use
Target group
This remote-control system may only be used for the purpose
specified by the manufacturer for operation of remote control
models without passengers. Any other type of use is impermissible and may damage the system and cause significant property damage and/or personal injury. No warranty or liability is
therefore offered for any improper use not covered by these provisions.
Read through this entire manual before you attempt to install or
use the transmitter.
Graupner/SJ constantly works on the development of all products; we reserve the right to change the item, its technology and
equipment.
The product is not a toy. It is not suitable for children under 14
years. The operation of the mc-28 HoTT transmitter must be performed by experienced modelers. If you do not have sufficient
knowledge about dealing with radio-controlled models, please
contact an experienced modeler or a model club.
Package content
Transmitter mc-28 HoTT
Transmitter battery
Receiver (optional)
USB Adapter/Interface
USB cable
Micro SD card with adapter
Hand pads
Transmitter belt
Brackets for transmitter belt
Short and long stick-tops
Aluminum case
Transmitter manual (Part 1)
Receiver manual (optional)
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The programming manual (manual part 2) can be found in its last
version on www.graupner.de by the related item page.
S1033_jh_V1_de
Technical Data
!
!
Transmitter mc-28 HoTT
Frequency band2,4 … 2,4835 GHz
ModulationFHSS
Transmitting power100 mW EIRP
Control functions16 functions of which 4 can be trimmed
Temperature range-10 … +55 °C
AntennaPatch integrated in the case
Operating voltage3,4 … 4,35V (1S LiPo)
Power consumptionapprox. 400 mA
Rangeapprox. up to 4.000 m
Dimensionsapprox. 235 x 228 x 66 mm
Weightapprox. 1250 g with transmitter battery
Note
The technical data of the optional receiver are available in the
manual included in the receiver package content.
Symbols explication
Safety notes
Always observe the information indicated by this warning sign.
Particularly those which are additionally marked with the CAU-TION or WARNING. The signal word WARNING indicates the potential for serious injury, the signal word CAUTION indicates possibil-
ity of lighter injuries.
The signal word Note indicates potential malfunctions.
Attention indicates potential damages to objects.
These safety instructions are intended not only to protect the
product, but also for your own and other people’s safety. Therefore please read this section very carefully before using the product!
Do not carelessly leave the packaging material lying around,
since it might become a dangerous toy for children.
S1033_jh_V1_de
Persons, including children, with reduced physical, sensory
or mental capabilities, or lack of experience or knowledge,
or not capable to use safely the transmitter must not use the
transmitter without supervision or instruction by a responsible person.
7 / 36
Operation and use of radio-controlled models needs to be
!
learned! If you have never operated a model of this type
before, start carefully and make yourself familiar with the
model's reactions to the remote control commands. Proceed always responsibly.
Inform yourself before flying your
model on which maximum
altitude you can fly in the uncon-
trolled airspace over the starting
position and do not exceed it.
Before you start using the remote control model, you have
to check the further relevant laws and regulations. These
laws you must obey in every case. Pay attention to the possibly different laws of the countries.
The insurance is mandatory for all kinds of model operation.
If you already have one, so please inform yourself if the operation of the respective model is covered by your insurance.
If this is not the case, conclude a special liability insurance
policy for models.
Protect all equipment from dust, dirt, moisture. All equip-
ment must be protected from vibration as well as excessive
heat or cold. The models may only be operated remotely in
normal outside temperatures such as from -10°C to +55°C.
First, always perform a range and function test on the ground
before you start using your model. Only so you can grant a
safe use! How to perform a range test is explained in the Part
2 of the manual.
Only operate all your HoTT components using the current
software version.
Start a data log every time you use your model. With a log-
data an occurred technical defect can be recognized and
verified. Only so it is possible to considerate an eventual
compliant.
For your safety by handling the transmitter
WARNING
Also while programming the transmitter, make sure that a connected motor cannot accidentally start. Disconnect the fuel supply or drive battery beforehand.
8 / 36
S1033_jh_V1_de
CAUTION
!
!
Risk of fire! Avoid every kind of short-circuit in all sockets of the
For your safety by handling the battery
transmitter! Use only the suitable connectors. In no case the
electronic component of the transmitter may be changed or
modified. Due to licensing reasons, any reconstruction and/or
modification of the product is prohibited.
Note
During transport protect the model and the transmitter from
damages.
CAUTION
Protect all equipment from dust, dirt, moisture. Only use in
dry locations.
Do not use any damaged battery. Risk of injury!
Any alterations to the battery can cause serious injury. Risk
of fire!
Batteries may not be heated, burned, short-circuited or
charged with excessive current or with reversed polarity.
While they are being charged, the batteries must be placed
on a non-flammable, heat-resistant and non-conductive surface. Combustible or highly flammable objects are to be kept
away from the charging area. Batteries must be monitored
while they are being charged.
The maximum quick charging current specified for the
respective cell type may not be exceeded.
If the battery heats up above 60°C while it is being charged,
stop charging and let the battery cool down to approximately
30 - 40°C.
S1033_jh_V1_de
The batteries must not be modified. Do not directly solder or
weld the cells.
If handled improperly, there is a danger of fire, explosion, irri-
tation and burns. To extinguish a fire use: water, CO
Leaked electrolyte is caustic and should not be touched or
come into contact with your eyes. In case of emergency,
rinse with a large quantity of water and consult a Med. Doctor.
Always charge the battery fully.
2
, sand.
9 / 36
The maximum charging current permitted may not be
exceeded.
Never leave the charger unattended when it is connected to
the power supply.
Batteries may only be charged in rooms fitted with smoke
detector.
Safety notes for stocking LiPo / LiIo batteries
Batteries may only be stored in non completely discharged
condition.
Batteries may only be stored in dry rooms with an ambient
temperature of +5°C to +25°C.
Stock the LiIo/LiPo batteries with a cell voltage of about
3,8V. If the cell voltage falls below 3 V, then the battery must
be necessarily charged. Deep discharge and storage in discharge status (cell voltage < 3V) make the battery useless.
Charge and transport your batteries always in a safety bag.
10 / 36
S1033_jh_V1_de
Description of the transmitter
Control elements on the transmitter
14
1
2
7
3
MC-28
4
11
56
MC-28
1
7
MC-28
8
MC-28
esc
set
13
12
10
11
10
1Connection sockets (protected by a cover)
2Control stick; left and right with 4D controls
3Speaker
4Antenna (integrated in the case)
5ON/OFF switch
6LED indicators (battery, RF radiation, warning signals, charge indicator)
7Places for switches and buttons
As standard are installed: 12 switches with different designs, 2 INC/DEC buttons
8Right rotary control "SD1"
9Right touch pad with four-way keys
10 Slider controls "SR1" and "SR2"
11 LCD
12 Left touch pad with four-way keys
13 Digital trim
14 Left rotary control "SD2"
9
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