JR ProPo DSX11 Operation Manual page 13

How to Handle Receiver Antenna
As in the drawings below, mount the receiver antenna to be
straight as much as possible. DO NOT cut or bend it for
mounting. Use all the extra antennas (EA131) and do not
remove them. When mounting the antenna, keep as much
distance as possible from carbon or metals. (Distance of
10mm or more is recommended.)
Signal receiving sections of antenna
Distance Test Before Flight
Before actually flying it, perform a test in the following
manner. This module is equipped with a system for a
distance test. After pressing the bind button to decrease
transmitter output, test the distance range.
1. Turning on power of both the transmitter and the
receiver, confirm proper operation.
2. Stepping about 30 meters away from the airplane, press
the bind button on the module. At this time, transmitter
output is dropped and testing mode starts.
3. While keeping pressing the bind button, confirm airplane
operation.
4. Moving around the airplane, confirm that it can be
operated from any direction.
NOTE: Direction of Receiver Antenna
Allocate antennas so that they
are crossed orthogonally.
No bending for use
Never allocate antennas
in the same direction
No cutting for use
Approx. 30m
DO NOT press the bind button while it
is flying. Should this happen, transmitter
output drops and the airplane can
become out-of-control.
During operation, an RC airplane can take every posture.
For more stable signal transmission, pay attention to the
direction of the extra antennas (EA131) which are attached
to the receiver. Also, for efficient signal receiving, it is
recommended to place each antenna by keeping a
distance of at least 30mm.
CAUTION