Spektrum SPMMS3132 - Manual (Page 9)

Spektrum Air Module 43
EN
Spektrum Air Module 42
EN
Install the main receiver using the same method you would use to install
a conventional receiver in your aircraft. typically wrap the main receiver in
protective foam and fasten it in place using rubber bands or hook and loop
straps. Alternately in electric or turbine-powered models, it’s acceptable to use
thick double-sided foam tape to fasten the main receiver in place.
Mounting the remote receivers in different locations, from the primary receiver,
gives tremendous improvements in path diversity. Essentially each receiver sees
a different RF environment and this is the key to maintaining a solid RF link, even
in aircraft that have substantial conductive materials, (e.g. turbine engines with
metal tail pipes, carbon fiber, tuned pipes, etc.) which can weaken the signal.
Using double-sided foam tape (servo tape), mount the remote receivers keeping
the remote antennas at least 2 inches (51mm) away from the primary antenna.
Ideally the antennas will be oriented perpendicular to each other, however, we’ve
found this to not be critical. Leads of varying length are available (see table
below), and in sophisticated aircraft we’ve found it best to mount the remote
receivers in different parts of the aircraft, keeping the remote antennas as far
away as practical from any conductive materials.
Remote Receiver Extensions
6-inch (152mm) SPM9010
9-inch (228mm) SPM9011
12-inch (305mm) SPM9012
24-inch (610mm) SPM9013
36-inch (914mm) SPM9014
Installing the Receiver
Installing the AR12000
the AR12000 incorporates one internal receiver, and three remote receivers
offering the security of four simultaneous RF links for the ultimate in multi-path RF
security. One internal receiver is located on the main PC board, while a minimum
of two remote receivers must be plugged into the antenna ports in order for the
system to operate. By locating these receivers in different locations throughout
the aircraft, each receiver is exposed to its own RF environment, greatly improving
path diversity (the ability of the receiver to see the signal in all conditions).
note: The AR12000 requires that at least two remote receivers
be installed.
A typical installation would include the main receiver mounted in the conventional location in the fuselage and the remote antennas in the nose (jets)
in the top turtle deck and even in the tail. the optimum location is as far away from any conductive materials as is practical.
Installing the Receiver