Futaba 4EXA - Manual (Page 14)

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OTHER 4EX FUNCTIONS OTHER 4EX FUNCTIONS
Trainer switch Trainer switch
To utilize the trainer function, the appropriate trainer cord (available separately) and a second Futaba transmitter (usually
provided by your flight instructor or R/C club) will be required. When two radios are connected with the trainer cord, they are
both capable of operating the model, but it's usually best for the instructor to hold the radio that has been setup for the plane
to be flown (as it is already programmed to fly the model). When the instructor holds the trainer switch on his radio, the
student will have control. When the instructor wishes to regain control he simply releases the switch. Then he will have
immediate, full control.
If connecting the 4EX to another 4EX with the small, square “ micro ” trainer jack, use the “ Micro to Micro ” (MM-TC) trainer cord
(FUTM4415). If connecting the 4EX to Futaba radios with the larger, round, “ DIN ” connector, use “ Micro to DIN ” (MD-TC)
trainer cord (FUTM4420). The T4EX transmitter may be connected to another T4EX, or any 4VF, 6VA Skysport, T6EXA, FF6 -
9, 9Z, or 14MZ series transmitter.
To use the trainer cord: To use the trainer cord:
1. It is best for the instructor to use the transmitter that is already set up for the model to be flown.
2. If the student's radio has PCM/PPM capability, set it to PPM.
3. If the student's radio has a plug-in RF module, remove the module.
4. Collapse the student's antenna and fully extend the instructor's antenna.
5. With the transmitters off, connect the trainer cord to both radios. (On the 4EX the trainer
jack is in the center of the rear of the case.) Do not force the plug into the transmitter and
note that the plug is “ keyed ” so it can go in only one way.
6. Turn on the instructor's transmitter. DO NOT DO NOT turn on the students transmitter it will automatically “ power up, ” but will not
transmit a signal. Set the servo reversing and trims of the student's radio to match that of the instructor's.
7. Turn on the receiver switch in the model. Depress the trainer switch on the instructor's radio. Use the student ’ s radio to
operate the controls (ailerons, elevator, rudder, etc.) and observe how they respond. Make any adjustments necessary to
the student's transmitter to get the controls to respond correctly.
8. Check to see that the trims are in “ sync ” by toggling the trainer switch back and forth a few times. The controls on the
model should remain stationary. If the controls do not remain stationary, this indicates that the trim settings on the student's
radio do not match those on the instructor's radio. Adjust the student's trims as necessary.
Adjustable-length control sticks Adjustable-length control sticks
The control stick length is adjustable to make the transmitter more comfortable to
hold and operate. To adjust the length, hold the locking piece (B) locking piece (B) and turn the
stick tip (A) stick tip (A) counterclockwise. Turn the locking piece B up or down to lengthen or
shorten the stick. When the length is suitable, lock the stick in position by turning
locking piece B counterclockwise.
Changing the 4EX stick mode Changing the 4EX stick mode
The transmitter may be operated in four different stick “ modes ” (1, 2, 3 & 4). The modes
determine the functions that will be operated by control sticks. Currently, the transmitter is in
“ mode 2 ” and should be left in mode 2 unless you are an experienced flyer and have learned to
fly in a different mode. In mode 2, the right control stick operates the aileron and elevator and
the left stick operates the rudder and throttle. This is how 99% of Americans fly their models.
To change the mode, simultaneously depress the MODE and SELECT keys, then turn on the power. The current mode will
appear on the LCD screen. Push the DATA INPUT lever up or down to change the mode. If a mode is selected that moves
the throttle control to the right stick, the throttle detent mechanism will have to be moved as well. This can be done by the
Futaba Service Center. (See page 2)
A B