Spektrum PowerSafe AR12120 User Manual page 8

EN
After Connection
When the transmitter and receiver are turned on and after the receiver connects to
the transmitter and normal control of all channels occurs, if loss of signal occurs
Preset Failsafe drives all servos to their preset failsafe positions. For sailplanes it' s
recommended that the spoilers/flaps deploy to dethermalize the aircraft, preventing
a flyaway. Some modelers prefer to use this failsafe system to program a slight
turn and low throttle to prevent their aircraft from flying away. When the signal is
regained, the system immediately (less than 4 ms) regains control.
Preset Failsafe:
• Prevents unintentional electric motor response on start-up.
• Drives all servos, except for the throttle to their preset failsafe positions, if the
receiver only is powered and no signal is present.
• Establishes preset failsafe servo positions for all channels if the signal is lost.
Programming SmartSafe
During the binding process, the bind plug is left in throughout the process and is
removed only after the receiver connects to the transmitter. After the connection
is made, confirmed by operating the servos, the bind plug can be removed. The
receiver is now programmed for SmartSafe.
Programming Preset Failsafe
During the binding process the bind plug is inserted in the bind port, then the
receiver is powered up. The LEDs in each receiver should blink, indicating that the
receiver is in bind mode. Now before binding the receiver to the transmitter and
with the receiver in bind mode, remove the bind plug. The LEDs will continue to
blink. With the control sticks and switches in the desired failsafe positions, bind
the transmitter to the receiver by putting the transmitter into bind mode. The sys-
tem should connect in less than 15 seconds. The receiver is now programmed for
preset failsafe.
Failsafe positions are stored via the stick and switch positions on the transmitter
during binding.
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Standard Range Testing
Before each flying session, and especially with a new model, it' s important to
perform a range check. All Spektrum aircraft transmitters incorporate a range
testing system, which reduces the output power allowing a range check.
Range Testing
1. With the model resting on the ground, stand 30 paces (approx. 90 feet/28
meters) away from the model.
2. Face the model with the transmitter in your normal flying position and put your
transmitter into range test mode. This causes reduced power output from the
transmitter.
3. You should have total control of the model in range test mode at 30 paces (90
feet/28 meters).
4. If control issues exist, call Horizon Product Support for further assistance.
Press and hold the bind button
Advanced Range Testing Using a Flight Log
The Standard Range Testing procedure is recommended for most sport aircraft. For
sophisticated aircraft that contain significant amounts of conductive materials (e.g.
turbine powered jets, some types of scale aircraft, aircraft with carbon fuselages,
etc.), the following advanced range check will confirm that all remote receivers are
operating optimally and that the installation (position of the receivers) is optimized
for the specific aircraft. This Advanced Range Check allows the RF performance
of each remote receiver to be evaluated and to optimize the locations of each
individual remote receiver.
Advanced Range Testing
1. Plug a Flight Log into the data port in the AR12120 and turn on the system (Tx
and Rx).
2. Advance the Flight Log until frame losses are displayed by pressing the button
on the Flight Log.
3. Have a helper hold your aircraft while observing the Flight Log data.
4. Standing 30 paces away from the model, face the model with the transmitter in
your normal flying position and put your transmitter into range test mode. This
causes reduced power output from the transmitter.
30 paces (90 feet/28 meters)
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EN