Spektrum SPM18000 DX18QQ - Manual (Page 58)

58 SPEKTRUM DX18QQ EN
Locating the Remote Receivers
While Spektrum 2.4GHz systems are far more resistant to interference caused
from internal RF generating sources, the remote receivers should be mounted as
far away as practical (typically 4” or greater if possible) from the following:
The remote antennas should be mounted a minimum of at least 2” apart from
each other as greater antenna separation gives improved path diversity (RF link
performance) in critical environments. In large aircraft where space is not an
issue, it is highly recommended that the antennas be mounted throughout the
aircraft as illustrated. Spektrum offers remote receiver extensions ranging from
6” to 36,” allowing the receivers to be mounted in the most optimum locations
throughout the aircraft.
Using double-sided foam tape and tie wraps, mount a minimum of three remote
receivers in your aircraft as per the illustrations and plug them into the receiver
ports.
Plugging in the Servos
Plug the servo leads into the appropriate ports in the PowerSafe receiver. You are
now ready to bind the system.
NOTICE: When using Y-harnesses or servo extensions, it’s important to use stan-
dard non-amplifi ed Y-harnesses and servo extensions as amplifi ed Y-harnesses
and servo extensions may cause the servos to operate erratically or not function
at all. Amplifi ed Y-harnesses were developed several years ago to boost the signal
for some older PCM systems and should not be used with Spektrum equipment.
When converting other models to Spektrum technology, ensure that all amplifi ed
Y-harnesses and/or servo extensions are replaced with conventional, non-ampli-
fi ed versions.
The JR PCM Y-Harness with Amplifi er (JRPA133) is not compatible with the
AR12120 and should not be used.
Binding
NOTICE: In order for the system to operate, one remote receiver must be plugged
into receiver port A and two more receivers must be plugged into any other ports.
When binding the PowerSafe with three remote receivers, if a fourth remote re-
ceiver is added, the system must be re-bound to recognize the additional receiver.
It’s necessary to bind the AR12120 to the transmitter so that the AR12120 will
only recognize that specifi c transmitter, ignoring signals from any other sources. If
the PowerSafe receiver is not bound to the transmitter, the system will not oper-
ate. During binding, the servo’s failsafe positions are stored.
To Bind the PowerSafe
1. With the system hooked up and all remote receivers attached as described
previously, insert the bind plug in the BIND/DATA port in the PowerSafe
receiver.
2. Turn on the soft switch. Note that the LEDs on all receivers should be fl ashing,
indicating that the receivers are ready to bind.
3. Establish the desired failsafe stick positions, normally low throttle and fl ight
controls neutral.
4. Follow the procedures of your transmitter to enter it into bind mode. The
system will connect within a few seconds. The LEDs on all receivers should
turn solid, indicating the system has connected.
5. Remove the bind plug and store it in a convenient place.
6. After you’ve programmed your model, it’s important to rebind the system so
the true low throttle and neutral control surface positions are programmed.
• Ignition systems
• Ignition batteries
• Ignition switches
• Engines
• ECU pumps
• Electric motors
• Receiver batteries • Fuel tanks
• Metal bypass tubes
• High-temperature components
like exhaust systems
• High-vibration areas
• Any signifi cant metallic
conductive components