Tactic TTX440 User manual

The Tactic TTX440 radio system replaces the
radio system originally included with your airplane.
Replace any instructions in the airplane manual
that refer to the radio control system with these
instructions.
The Tactic TTX440 radio system uses 2.4GHz spread
spectrum technology. While you’re flying, spread spectrum
automatically, rapidly and seamlessly changes between “open”
frequencies in the 2.4GHz band, so it never operates on the
same frequency long enough to receive interference. This
assures that your receiver will always be reading commands
from your transmitter only, eliminating errant signals which
can cause unwanted servo movement or loss of control. Tactic
2.4GHz transmitters and receivers are not compatible with other
brands of 2.4GHz equipment.
INSTRUCTION MANUAL
2.4GHz
Radio Control System
TTX440
™

2
IDENTIFICATION OF CONTROLS
Take a minute to familiarize yourself with the transmitter’s controls. The
transmitters in the illustrations for both 3 and 4-channel are the same, but the
servos are connected to the receiver differently depending on whether or not
your model has ailerons.
FLIGHT CONTROLS
3
channel
Rudder
Trim Lever
Throttle
Trim Lever
Elevator
Trim Lever
(throttle-channel 3)
LEFT
Control Stick (rudder-channel 1,
elevator-channel 2)
RIGHT
Control Stick
Rudder
Trim Lever
Aileron
Trim Lever
Throttle
Trim Lever
Elevator
Trim Lever
(throttle-channel 3,
rudder-channel 4)
LEFT
Control Stick
(aileron-channel 1,
elevator-channel 2)
RIGHT
Control Stick
4
channel

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Trim Levers – The trim levers are used to make small, in-flight adjustments
to the assigned control surface’s neutral position. When flying, adjust the
levers as necessary to “fine-tune” the model’s flight path so it will fly straight-
and-level when the control sticks are neutral (“hands-off”).
Right control stick (3-channel operation) – Controls the servos connected
to channel 1 and channel 2 on the receiver (typically, for 3-channel models,
the rudder and elevator). Pulling the stick back (toward the pilot) should
cause the elevator to move up, pushing the tail down and pitching the nose
upward (technically called “pitch” control). Moving the stick to the right
should cause the rudder to move right, causing the nose of the model to
turn to the right (technically called “yaw” control). The opposite should occur
if the stick is moved the other way. Note that properly designed 3-channel
(“rudder-only”) models have significant wing dihedral. This will allow the
model to enter a bank with rudder control alone (simulating the effect of
ailerons on 4-channel models).
Left control stick (3-channel operation) – Controls the ESC connected to
channel 3 (throttle). Pulling the stick back (toward the pilot) should turn the
motor off and moving the stick forward will advance the motor speed.
Right control stick (4-channel operation) – Controls the servos connected
to channel 1 and channel 2 on the receiver (typically the ailerons and
elevator). Pulling the stick back (toward the pilot) should cause the elevator
to move up, pushing the tail down while pitching the nose upward (technically
called “pitch” control). Moving the stick to the right should cause the right
aileron to move up and the left aileron to move down, causing the model to
enter a banked turn to the right (technically called “roll” control). The opposite
should occur if the stick is moved the other way.
Left control stick (4-channel operation) – Controls the servos connected to
channel 3 and channel 4 on the receiver (typically the throttle and rudder).
Pulling the stick back (toward the pilot) should turn the motor off. Moving the
stick to the right should cause the rudder to move right, causing the nose of
the model to turn to the right (technically called “yaw” control). The opposite
should occur if the stick is moved the other way.

4
ADUSTMENTS/FUNCTIONS
Antenna
Neck
Strap
Hook
On/Off
Switch
Servo Reversing Switches Power Indicator
3&4
channel
Antenna – The antenna pivots at the base and may be rotated downward for
storage and transport. When flying, be certain the antenna is in the upright
position for the strongest signal. The antenna is not removable.
Neck strap hook – Some pilots prefer flying with the transmitter suspended from
a neck strap. This is your option. A neck strap may be purchased separately.
On/Off switch – Develop the habit of turning on the transmitter before
connecting the battery to the plane (or before turning on the receiver switch)
and turning off the transmitter after disconnecting the battery. This way, the
receiver will always be receiving signals from the transmitter.
Power indicator – Indicates transmitter battery condition. Refer to “Install
the Batteries” below.
Servo reversing switches – Determines the direction of travel of assigned
servos. For example: if, when pulling the elevator stick back (toward the pilot)
the elevator moves down, change the position of the elevator reversing switch
so the elevator moves up.
ADJUSTABLE CONTROL STICK LENGTH
Loosen the head from the base. Tu r n
the head to the desired height that
feels most comfortable to you. Securely
tighten the base to the head with your
fingers (tools are not necessary).
Head Base

5
SET UP AND CHECK THE CONTROLS
INSTALL THE BATTERIES
1. Remove the battery cover from the transmitter by pressing on the cover and
sliding it downward. Install four new AA batteries. Then replace the cover.
2. Turn on the transmitter. All three LEDs (light-emitting diodes) should light. If
any of the lights do not illuminate, battery power is low. Replace the batteries.
If, during flight, the green light goes out, power is getting low. This is not an
emergency situation, but you should land the plane as soon as conveniently
possible and replace the batteries before flying again. If both (green and yellow)
lights are out, battery power is dangerously low and the model should be landed
immediately before control is lost.
Three lights on: Battery power good — continue to fly.
Two lights on: Battery power low — land as soon as convenient.
One light on: Battery power dangerously low — land as soon as possible.
MAKE SURE THE RECEIVER IS “BOUND” TO THE TRANSMITTER
The receiver must be electronically “bound” to the transmitter in order to “read”
its signals.Your model should be supplied with the receiver already bound, but
perform this quick check to make sure.
Throttle Trim
(centered or “Off”)
Lower the Throttle Stick
and the Throttle Trim
Throttle Stick (“Off”)
1. Center the aileron, elevator and rudder trims on the transmitter, but
lower the throttle control stick all the way down to the “off” position and
set the throttle trim to “off” or centered.
IMPORTANT! Even though the throttle stick and throttle trim lever
are all the way down, always be prepared for the propeller
to turn as soon as the battery is connected just in case
something goes wrong. Hold onto the model or have an assistant hold the
model while connecting the battery—especially for the very first time, until
you are certain everything is working properly. Always connect the battery
from behind the propeller. In fact, for models that have the propeller in front,
it is a good idea to remove the propeller while setting up all the controls for
the first time.

6
2. Connect the battery to the ESC (or turn on the receiver switch if your model
has one). With the throttle stick all the way down, move the control sticks
(but don’t move the throttle stick, otherwise the propeller may turn). If the
controls respond, the receiver is already bound and nothing else needs to
be done. (The illuminated red light next to the “BIND” button in the top of the
receiver also indicates that the receiver is bound.) But if the controls are not
working and the red light is not on, then the receiver is not bound to your
transmitter and cannot read its signals. Follow these steps to perform the
binding operation.
3. With the transmitter on and the battery connected, use a small screwdriver,
a toothpick or a piece of wire to press and hold the “BIND” button down
inside the hole in the top of the receiver. The red light should flash three
times staying on the third time. (Also note that the first flash and pause will
be longer than the next.) This should take about two or three seconds.
4. Release the button.The receiver should now be bound to the transmitter
and all of the controls should be working. Note: If you ever purchase a
new receiver as a spare or a replacement, it too will have to be bound to
your transmitter.
CHECK THE CONTROL DIRECTIONS
Lower
Throttle Stick
Motor turns off
Advance Throttle Stick
Motor runs full speed
Pull Control
Stick Back
Elevator moves up
Move Control
Stick Right
Rudder moves right
3-channel

7
Lower
Throttle Stick
Motor turns off
Advance Throttle Stick
Motor runs full speed
Pull Control
Stick Back
Elevator moves up
Move Control
Stick Right
Right aileron moves up,
left aileron moves down
Move Control
Stick Left
Rudder moves left
4-channel
1. Make certain all the controls respond in the correct direction when the
control sticks are moved as indicated. Note: Some ESCs feature an “arming”
safety procedure, where the motor will not turn the first time the throttle stick
is advanced. Refer to the instructions for the ESC that came with your airplane
to find out if your ESC has an arming feature.
If any of the controls do not respond in the correct direction, use the blade of
a small screwdriver to move the any of reversing switches necessary to the
other position. Confirm that the controls respond correctly.
If none of the controls respond, confirm that the transmitter is turned on and
the motor battery is connected to the ESC. Also confirm that the battery is
at least partially charged. If there is still no control response, the receiver
may not be reading signals from the transmitter. “Bind” the receiver to the
transmitter as described on page 5.
2. When you get to the flying field perform a “ground range check” to verify
that the receiver will read the transmitter’s signals from a distance. This isn’t
required before every flight, but should always be done before the first flight
of the day. To do a ground range check, place the model on the ground and
have an assistant hold onto it. With the system turned on walk away from the
model while you operate the controls. Be certain to vary the motor speeds
as well. As you continue to walk and operate the transmitter confirm that all
the controls continue to respond correctly. Do this until you reach a distance
as far away from the model as possible while still being able to clearly see it
(approximately 100’ [30m] (fifty paces). If all the controls respond correctly the
model is ready to fly. If any of the controls do not respond correctly do not fly.
Refer to the TROUBLESHOOTING part of the manual below.

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TROUBLESHOOTING
The transmitter is on and the motor battery is connected,
but the servos do not respond
● Be certain the motor battery and transmitter batteries are sufficiently
charged.
● The receiver may not be reading signals from the transmitter. Perform
the binding operation as described on page 5.
Range is short or the plane behaves erratically in flight
If, while flying, you notice that the model doesn’t seem to be responding to
your control inputs as expected, this may be an indication of poor operational
range or electrical interference. Perform the following checks:
●
If the servo wires are not fully connected in the receiver, interference
may result which can shorten operational range.
●
Be certain the motor battery and transmitter batteries are sufficiently
charged.
●
Be certain the transmitter antenna is vertical.
●
Occasionally range can be affected if the receiver is too close to other
electrical components inside the model. Relocate the receiver to a
different location in the fuselage.
●
An extreme crash can damage the receiver even if it was well-protected
and appears to be in good condition. Send the receiver to Hobby
Services for repair if you suspect it has been damaged in a crash.
●
Occasionally, signals from pagers, strong industrial or other commercial
transmitters in the area can cause interference. Check with other pilots
at your flying site or in your area who may be able to verify known radio
problems, or find another flying site.
One servo responds erratically (or not at all),
but the other servos are working fine
Occasionally, servos simply “wear out,” especially if the model has crashed.
If a servo fails, the best thing to do is simply replace it.

9
SPECIFICATIONS
TTX440 4-Channel Transmitter (TACJ0445)
Channels: 4
Frequencies: 2.403 – 2.480GHz
Modulation: FHSS spread spectrum
Input power: four “AA” alkaline, NiCd, or NiMH cells
(3.8 - 8.0V)
Output power: < 0.1W
TR424 4-Channel Receiver (TACL0424)
Channels: 4
Receiving freqs: 2.403 – 2.480GHz
Modulation: FHSS spread spectrum
Input power: 4.0 - 6.0V
Dimensions: 1.77 x 0.98 x 0.5” (45 x 25 x 13mm)
Weight: 0.25 oz (7g)
FCC STATEMENT
This device complies with part 15 of the FCC rules. Operation is subject to the
following two conditions.
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference
that may cause undesired operation.
NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO
OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS
TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER’S
AUTHORITY TO OPERATE THE EQUIPMENT.

10
IMPORTANT WARNINGS AND PRECAUTIONS
●
NEVER allow water or moisture to contact the receiver, servos
or electronic components inside the transmitter. This could cause
those components to fail or cause improper operation and poor
control of the aircraft, possibly resulting in a safety hazard.
●
NEVER operate R/C model aircraft near power lines, radio or cell
phone towers, roads, automobiles, buildings, or pedestrians. Use
care where other R/C aircraft are being flown simultaneously.
●
NEVER operate R/C equipment if you are physically impaired as
it could pose a safety hazard to yourself or others.
●
NEVER allow small children to operate/control model R/C
equipment without the supervision of an adult.
●
ALWAYS make certain all transmitter stick movements operate
all servos properly in the model. Check the operation of control
surfaces before—and after—starting the engine/motor.
●
ALWAYS make sure the transmitter antenna is unfolded entirely
so that it’s pointing upright to ensure maximum range and control
of the aircraft.
●
Do not store your radio equipment in extremely hot or cold
locations, in direct sunlight or in locations with high humidity.
Store R/C equipment in cool and dry locations.
●
Do not allow chemicals to come in contact with any parts of the
radio system. Substances such as glow fuel, gasoline, CA glue,
etc. could permanently damage plastic parts of the radio system.
●
Remove the batteries from the transmitter before placing the radio
in long-term storage.

11
WARRANTY AND REPAIR
1-YEAR LIMITED WARRANTY - *U.S.A. and Canada Only
Tactic warrants this product to be free from defects in materials and
workmanship for a period of one (1) year from the date of purchase. During
that period, Tactic will, at its option, repair or replace without service charge
any product deemed defective due to those causes. You will be required to
provide proof of purchase (invoice or receipt). This warranty does not cover
damage caused by abuse, misuse, alteration or accident. If there is damage
stemming from these causes within the stated warranty period, Tactic will, at
its option, repair or replace it for a service charge not greater than 50% of its
then current retail list price. Be sure to include your daytime telephone number
in case we need to contact you about your repair. This warranty gives you
specific rights. You may have other rights, which vary from state to state.
For service on your Tactic product, send it post paid and insured to:
HOBBY SERVICES Tel: [phone]
3002 N. Apollo Dr., Suite 1 (9:00am - 5:00pm CST, M-F)
Champaign, IL 61822 E-mail: [e-mail]

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FCC ID: IYFTTX240