33
Receiver's Antenna Installation
The R7108SB has two antennas. In order to maximize signal reception and promote safe modeling Futaba
has adopted a diversity antenna system. This allows the receiver to obtain RF signals on both antennas and
fly problem-free.
To obtain the best results of the diversity function,
please refer to the following instructions:
1. The two antennas must be kept as straight as
possible. Otherwise it will reduce the effective
range.
2. The two antennas should be placed at 90
degrees to each other.
This is not a critical figure, but the most
important thing is to keep the antennas
away from each other as much as possible.
Larger models can have large metal objects
that can attenuate the RF signal. In this case
the antennas should be placed at both
sides of the model. Then the best RF signal
condition is obtained at any flying attitude.
3. The antennas must be kept away from
conductive materials, such as metal, carbon
and fuel tank by at least a half inch. The
coaxial part of the antennas does not need
to follow these guidelines, but do not bend it
in a tight radius.
4. Keep the antennas away from the motor,
ESC, and other noise sources as much as
possible.
Antenna
*Must be kept as straight as possible.
Coaxial cable
R7108SB Receiver
Sleeve
Antenna
installation
90°
Do not bend the antenna part
Gently bend the coaxial
cable part.
Fix the sleeve to the model
Antenna part
Sleeve
Coaxial cable
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