The system in use
All robbe-Futaba receivers continue to work with
full range at reduced voltage, down to the point
where the supply voltage falls to 3 V. The advan-
tage of this feature is that the receiving system
will normally continue to work even if one cell fails
completely (short-circuit), since robbe-Futaba ser-
vos still work down to 3.6V, albeit at slightly lower
speed and with reduced power. This is very impor-
tant in winter, when ambient temperatures are very
low; otherwise any momentary voltage collapse
could cause the loss of a model.
However, there is a drawback: under certain cir-
cumstances the user may not even notice the failu-
re of a battery cell. For this reason it is important to
check the receiver battery from time to time.
We especially recommend the use of robbe batte-
ry monitors, No. 8409, which indicate the condition
of the battery by means of a chain of LEDs.
Power-on sequence
Always switch the transmitter on first, and only then
the receiver; reverse the sequence when switching
off. When you switch the receiver on, the servos
run to the neutral position. We recommend that
you check each function in turn by operating the
associated stick or other transmitter control. Check
that each control surface operates in the correct
"sense" (direction) relative to the stick movement.
If any control surface moves in the wrong direction,
that servo must be reversed at the transmitter.
© robbe Modellsport
Operating instructions R6007 SP 2.4 GHz receiver
Electrical noise' interference
If your radio control system is to operate safely and
reliably, it is essential to avoid what is known as
electrical 'noise' interference. This problem is due
to metal parts - such as pushrods - rubbing against
each other intermittently as a result of vibration.
For this reason the linkage to the engine's car-
burettor must always terminate in a plastic clevis
- never connect a metal linkage directly to the car-
burettor arm without an insulator between them.
100 nF
Power con-
nections
Electric motors
All conventional electric motors in RC models must
be effectively suppressed, otherwise the sparks
which are generated between the armature and
the carbon brushes when the motor is running will
have a serious adverse effect on the radio control
system, i.e. they cause interference. We recom-
mend 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.
Electronic ignition systems
The ignition systems of spark-ignition petrol engi-
nes can also generate interference, which has an
adverse effect on the radio control system. Never
power an ignition system from the receiver battery;
a separate battery is essential. Be sure to use pro-
perly suppressed spark plugs, plug caps and shiel-
ded ignition cables. Keep the receiving system as
far away as possible from any ignition system.
100 nF
E-Motor
47 nF
7