b) Tuning the receiver frequency to the transmitter
The transmitter and the receiver both use 2.4-GHz-
transmission.
This system requires the receiver to be tuned to the
transmission frequency of the transmitter.
This is indicated by the voltage indicator (ill. 1a, pos. 15)
which flashes at short intervals when the transmitter is
switched on. While it is flashing, the receiver on your
helicopter must be switched on as well. The built-in LED
(1) of the receiver (2) also flashes during the tuning
process.
When tuning is complete, the voltage indicator of the
transmitter (ill. 1, pos. 15) as well as the LED on the
Illustration 3a
receiver (1) light up permanently and the system is ready
for use.
c) Installing the receiver aerial
To ensure maximum range with this transmission system,
the two short receiver aerials must be installed at a 90°-
angle to each other.
This is done best by attaching the aerial at the chassis
parallel to the receiver with a small strip of adhesive tape
and the second aerial in a vertical position at the chassis
with a strip of adhesive tape (see indicated auxiliary line
in ill. 3b).
Illustration 3b
d) Battery status indicator
The transmitter is sufficiently supplied with voltage if the
status bars (ill. 1, pos. 15) are within the green range (1).
If there is not enough remaining voltage to ensure proper
operation, the status bars are in the yellow range (2). In
this case, you should stop operating the model
immediately. At a voltage of less than 7,0 V, only the red
area is lit (3). To continue operating the remote control,
recharge the batteries immediately or insert new batteries.
In order to avoid a memory effect of NiCd rechargeable
batteries, you should connect the charger only when the
rechargeable batteries are completely discharged.
Illustration 4
45