FX-20
control system, i.e. they cause interference. We recommend
robbe suppressor filters, No. 8306, 8307 or a set of suppressor
capacitors, No. 4008. Each electric motor in the model must be
suppressed individually as shown in the diagram.
17.4 ELECTRONIC IGNITION SYSTEMS
The ignition systems of spark-ignition petrol engines can also
generate interference, which has an adverse effect on the radio
control system. Never power an ignition system from the re-
ceiver battery; a separate battery is essential. Be sure to use
properly suppressed spark plugs, plug caps and shielded igni-
tion cables. Keep the receiving system as far away as possible
from any ignition system.
17.5 RECEIVER BATTERY CAPACITY / OPERATING
TIMES
This rule applies to all types of battery: at low tempera-
tures battery capacity is severely reduced, i.e. safe opera-
ting times are shorter in cold weather.
The safe operating time varies greatly according to the number
of servos connected to the receiver, the stiffness of the lin-
kages, and the frequency of control commands generated by
the pilot or operator. A standard servo draws between 150 mA
and 600 mA when the motor is running, and about 8 mA at idle.
Super-servos and powerful digital units can draw peak currents
of up to 1300 mA at full power.
Be sure to select a receiver battery with ample capacity,
bearing in mind the likely current drain and the number of
servos in the model.
Ensure that all mechanical linkages are free moving, and that
the servo is not obstructed in its travel. A servo running con-
stantly against a mechanical stop or limit draws a very high
current, and will also inevitably suffer damage in the long-term.
You will notice the point where the receiver battery is almost
discharged, because the servos will respond much more slowly
than normal. The moment you realise this, land the model im-
mediately and recharge the battery.
We recommend the use of a battery controller to monitor the
receiver pack during a session, as this gives you a useful idea
of the state of charge of the battery between flights.
87
18. GUARANTEE
All our products, including this radio control system, are gua-
ranteed for the full statutory period of 24 months. If you wish
to make a valid claim under guarantee, please contact your
dealer, who is responsible for the guarantee and the proces-
sing of any guarantee claim. During the guarantee period we
will correct any material defects or faults in operation or ma-
nufacture at no cost to you. All other claims, e.g. in the case
of consequent damage, are excluded from the guarantee. The
system must be returned to us carriage-paid; we will pay the
cost of transport back to you. We will not accept shipments
sent C.O.D. We accept no liability for damage in transit or loss
of your shipment; we recommend that you take out suitable
insurance to cover this. Send your equipment to the robbe Ser-
vice Centre for the country in which you live.
To process your guarantee claims the following condi-
tions must be fulfilled:
• The purchase receipt must be included with your shipment.
• The units must have been operated in accordance with the
operating instructions.
• Recommended batteries and genuine robbe accessories
must have been used exclusively.
• Damage due to damp, tampering, reversed polarity, over-
loading and mechanical damage are not covered.
• Please be sure to include a succinct description of the pro-
blem to help us locate the fault or defect.
19. LIABILITY EXCLUSION
robbe Modellsport are not in a position to influence the way
you install, operate and maintain the radio control system
components. For this reason we are obliged to deny all lia-
bility for loss, damage or costs which are incurred due to the
incompetent or incorrect use and operation of our products, or
which are connected with such operation in any way. Unless
otherwise prescribed by law, the obligation of the company to
pay compensation is limited to the invoice value of the robbe
products, which were immediately and directly involved in the
event, which caused the damage. This does not apply if robbe
is found to be subject to unlimited liability according to binding
legal regulation on account of deliberate or gross negligence.
20. POST OFFICE REGULATIONS
The R&TTE (Radio Equipment & Telecommunications Termi-
nal Equipment) Directive is the new European regulation, which
applies to radio systems and telecommunications apparatus,
and is applicable to all such equipment, which has general
conformity approval in the EC. One section of the R&TTE Di-
rective regulates the setting up and operation of radio systems
in the European Community. An important change compared
with earlier regulations is the abolition of approval procedures.
The manufacturer or importer must submit the radio system
to a conformity assessment procedure before marketing the
equipment, and is obliged to notify the appropriate authority
(register) when the process is completed.
The CE symbol is applied to all such equipment, and indicates
that it fulfils the currently valid European norms. An exclama-
tion mark is also applied to radio transmitting equipment as
an indication that the approved frequencies are not uniform
throughout Europe. This symbol is used in all the countries of
the European Union. Other nations such as Switzerland, Nor-
way, Estonia and Sweden have also adopted this directive.
Your radio control system is registered (i.e. approved) in all
these countries, and can legally be sold and operated in all of
them. Please note that this radio control system may only be
operated on the frequencies approved for use in your country.
A frequency table is supplied with your system. We are obliged
to point out that the responsibility for this, and also for operating
a radio system, which fulfils the requirements of the directives,
rests with you, the user. In Germany radio control systems
for models operating in the frequency bands of 27 MHz, 35
MHz and 40 MHz do not need to be registered or licensed,
and no fee is payable, but this may not apply in the country in
which you live and operate the system. In Germany a ‘Gene-
ral Licence’ to use these frequencies is granted by right, and
a copy of this General Licence is supplied with your system.
Before using the system please check whether you need to
register or license your radio control equipment in the country
where you intend to operate it.
21. CONFORMITY DECLARATION
robbe Modellsport GmbH & Co. KG hereby declares that this
product satisfies the fundamental requirements and other
relevant regulations contained in the following Directives:
Regulation relating to radio equipment and telecommunica-
tions transmitting apparatus (FTEG) and Directive 1999/5/EG
(R&TTE), Directive RL 2004/108/EG (electro-magnetic compa-
tibility), Directive LVD 73-23/93/68 EWG (low voltage directive)
The original Conformity Declaration can be viewed on the In-
ternet under www.robbe.com: click on the logo button marked
“Conform” which is included in each device description.
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