Quick Reference Guide .....................2
Preflight Preparations........................2
System Contents & Specifications ....3
Warnings & Cautions.........................4
Glossary ............................................4
The 6XM Transmitter .........................5
Flight Equipment & Installation..........7
LCD and Programming Controls .....10
Programming The 6XM ...................11
Programming Flowchart ..................11
© Copyright 2005
Model Memories..............................12
Data Reset ......................................12
Servo Reversing ..............................12
Dual-Rates and Exponential............13
End Point Adjustments ....................14
Trims ................................................14
Programmable Mixes (P.MIX) ..........15
Pre-set Wing Mixes (W.MIX) ...........16
FP (flaperons)..................................16
V (v-tail) ...........................................16
FPv (flaperons + v-tail) ....................16
EL (elevons) ....................................17
Trainer System ................................17
Throttle Cut Function.......................18
Control Stick Length Adjustment .....18
Changing Stick Modes ....................18
Flight Preparation ............................19
Flying Safety Guidelines..................19
Tower Hobbies Accessories ............20
Troubleshooting Guide.....................20
Service Information .........................21
Model Memory Chart ......................23
TOWZ1265 for TOWJ62** V1.0
Congratulations on your purchase, and thank you for choosing the Tower Hobbies System 3000 6XM 6-channel FM computer radio! Tower
Hobbies places a very high priority on giving you the greatest value for your money. Your new 6XM radio serves as the perfect example.
With the 6XM, you’ll enjoy much more versatility than a 4-channel radio can provide — including 6-model memory and channels for retracts
and flaps. Plus 241-position digital trims on throttle, rudder, elevator and aileron for exceptional tuning precision.
And if it’s your first computer radio system, you’ll find that using the 6XM is much simpler and more intuitive than you ever would have
expected. The bright, 40-segment LCD provides a step-by-step guide to programming and confirming every setting — which you’ll make
using just two buttons and a data input lever.
Packed with features and easy to use, the 6XM is smart investment in state-of-the-art radio control. Congratulations on your purchase —
and happy flying!
Bruce R. Holecek
Founder and Chief Executive Officer
Tower Hobbies
Note: This Quick Reference Guide is a condensed version of all information given in this manual. It is strongly recommended you read
this entire manual before operating your 6XM system or your model.
1. Charge the transmitter and receiver batteries for 15 hours with the included charger.
2. Connect servos, 4-cell battery pack and switch harness as shown on page 8.
3. Turn on the transmitter, then the receiver switch harness.
4. Make sure all servos operate according to transmitter stick movements.
5. Turn off the system, receiver first, then transmitter.
6. Install the entire radio system into the model as shown in the model’s instruction manual.
7. Wrap the receiver and receiver battery in foam rubber (HCAQ1000 or HCAQ1050) for protection.
8. If necessary, to reverse the direction in which a servo rotates see page 12 and then return to step 9 below.
9 Range test the radio system prior to flight. With the transmitter antenna collapsed, you should be able to smoothly control
movement of all control surfaces on your model from at least 100ft on the ground.
Please read this entire manual carefully before use. Pay special attention to all precautions and warnings to ensure the safest
operation. This radio system is intended for sport and recreational flying of R/C models only. Tower Hobbies is not responsible
for incidental damage or personal harm resulting from improper usage or unauthorized alteration of this product. Physical
modifications of any component in this system will void the warranty. If while reading these instructions you become confused,
continue to read and things might become more clearly understood.
For best results, charge the Rx and Tx batteries, then connect servos to the receiver and try to adjust the radio on the workbench
while reading along with this instruction manual. This is a very effective method for quickly understanding how the transmitter’s
programming controls the flight equipment.
Transmitting frequencies:
Modulation type:
Input power:
Current drain:
Output power:
Model memories:
Programmable mixing:
Display type:
72MHz band, channels 11-60 (72.010 – 72.990MHz)
FM, narrow-band
9.6V 600mAh Sanyo® NiCd battery
< 0.75W
six, with reset
4 preset, one user-programmable
40-segment LCD (liquid crystal display)
• 241-position digital trims for four main channels
• 4 factory programmed wing mixes: flaperon, V-tail, flaperon + V-tail, and elevon (delta mixing)
• 1 user defined programmable mix
• Dual rates and exponential on aileron and elevator
• Servo reversing and end point adjustment on all channels
• Trainer system / Throttle cut switch
• Adjustable stick lengths for both gimbals
• Fully proportional flap adjustment dial
• Audible low-battery warning
• Retract switch
• User-selectable stick modes
Receiving frequencies:
Modulation type:
Input power requirement:
Avg. current drain:
Intermediate frequencies:
Receiving range:
Battery type:
Rated voltage:
Rated capacity:
72MHz band
FM dual-conversion narrow-band
4.8V or 6V DC
14mA approx. w/o servos at 4.8V
10.7MHz 1st IF, 455kHz 2nd IF
500 yards ground, 1000 yards air
2.5 x 0.88 x 1.38” (64 x 21 x 35mm)
1.5 oz (42.5g)
• 110V AC wall charger with LEDs (70mA for Tx, 100mA for Rx)
• Gold plated switch harness with charge jack
• 9 inch (200mm) aileron extension
• Neck strap
• Servo mounting tray
• Frequency flags
• Instruction manual
* All specifications subject to change without notice
Sanyo® NiCd
4.8 volts
2.25 x 0.56 x 2.0” (57 x 14 x 51mm)
3.4 oz (95g)
• Always turn on the transmitter first, then the receiver. When turning the system off always remove power from the receiver
first, then the transmitter. It is NEVER safe to have power applied to the receiver only, as the model’s motor and servos may
be uncontrollable and become unsafe or damaged.
• Do not operate the transmitter on a frequency which is already being used in your area, as it could cause interference and be
hazardous to another modeler.
• Do not fly in the rain or at night. Water can permanently damage many of the components in the radio system, possibly
causing loss of control and a crash.
• Fly at safe distances away from other people, buildings, electrical lines, or any other object which could possibly impede safe
flying. Failure to do so could cause a crash and bodily harm, and physical damage to property.
• Always extend the Tx and Rx antennas to maximum length when flying. Make sure the Tx antenna is screwed into the Tx tightly. Mount
the Rx antenna in your model so that it does not drag on the ground. Always range test the radio system before use.
• Adjust the transmitter’s throttle stick to minimum position BEFORE turning the Tx’s power switch “ON”. Failure to do so could
cause the engine to go to full throttle and cause an injury.
• Do not make adjustments to the radio system while the engine is on unless absolutely necessary. Failure to do so could cause
the engine to accidentally go to high speed and cause an injury.
• During flight preparations, always place the Tx on its back when on the ground, to prevent it from accidentally falling over and
inadvertently moving the throttle stick.
• Always attach the proper frequency flag to the Tx’s antenna when flying. This alerts others at the flying field as to which
frequency you are using.
• Always fully charge the Tx and Rx NiCd batteries before each flight. Failure to do so could cause an inadvertent power failure
and a crash.
• Do not leave the radio system, batteries, model airplane, or other modeling equipment within the reach of children.
• Do not overheat or throw the NiCd batteries into a fire. Leaking electrolyte from the battery could cause injury, such as burns
WATER AND SEE A DOCTOR. Recycle the battery when no longer in usable condition (see page 20).
• Store the radio with all NiCd batteries in the discharged state, and be certain to fully charge the batteries just prior to use.
• Do not store the radio system in extreme heat (exceeding 104oF) or cold (below -14oF), in direct sunlight, in high humidity, in
high vibration environments, or in dusty areas.
• Do not allow fuel or oil on the plastic parts. Some plastics may melt when exposed to such materials.
Understanding the following terms will be very helpful before reading the rest of the manual.
REVERSING (SERVO REVERSING): Changing a servo’s rotational direction
through the transmitter’s “reverse” display.
THROW: Control surfaces (aileron, elevator, rudder, etc.) are designed to move
certain distances in different types of models. This movement distance is referred
to as “throw”, typically measured at the trailing edge of the surface and expressed
in inches or millimeters as shown in Figure 1.
Figure 1
DUAL-RATE (D/R): Dual-rates allow you to instantly switch between two different control throws (distances) for the aileron and
elevator. Different flying styles can often require different throw lengths for the controls. For models moving at high speeds, “low”
throw settings make the control surfaces seem less sensitive. For models which are being flown slowly, such as during landings,
or those being flown with very aggressive aerobatic maneuvers, “high” throws may be necessary as the model’s control surfaces
will not seem sensitive enough.
END POINT ADJUSTMENT (E.P.A.): This determines the absolute maximum throw or distance that a servo can rotate. E.P.A.
settings are separate from dual-rate settings. Regardless of the transmitter’s D/R settings, the servo will never travel beyond the
E.P.A. limit set in the transmitter.
EXPONENTIAL: Without exponential, servos normally move equally proportionately to the movement of the transmitter’s control
stick. For example, moving a Tx stick gradually will cause the servo to move equally as gradually. With exponential control, the
servo moves disproportionately (either more or less) to the rate at which the Tx stick is moved. For example, with a linear
movement in the Tx stick, the servo can be set to move at a speed which is initially the same as the movement of the stick but
quickly becomes faster or slower than the movement of the stick. Exponentials are commonly used to “soften,” or decrease initial
servo travel for the ailerons and elevators, so that initial control stick inputs from the pilot result in small servo movement for a
smoother flying airplane. Note: Dual rates adjust the amount of servo travel, whereas exponential determines where most of the
travel will occur.
MIXING: Sometimes it’s desirable to make two (or more) servos move simultaneously from only a single movement of a
transmitter’s stick. This is called “mixing” and can be done by mechanical means (physically connecting the wires of the servos to
be mixed with a Y-connector), or electronically through the 6XM’s programming (no physical connections exist between the
servos). Setting mixes in the Tx allows for more flexibility for varying applications, as servos can be made to move in opposite
direction of each other, each servo’s end points can be set independently, etc.
The Tower 6XM transmitter (Tx) can be used with any Tower Hobbies or Futaba® brand narrow-band, FM receiver (Rx). The 6XM
contains independent memories for six different models. External switches operate dual-rates and exponentials, landing gear, and
training functions. Programming features include: servo reversing and end point adjustments for all channels, dual-rates and
exponential controls for aileron and elevator channels, plus five programmable mixes - four factory pre-set mixes including
flaperon, V-tail, elevon, or flaperon + V-tail, and one user-defined programmable mix.
During normal conditions, the range, or safe operating distance from the 6XM Tx to the Rx is “line of sight”. This means the 6XM
should maintain complete control any time you can see the model. The 6XM operates on the 72MHz frequency band, in which
there are 50 different channels ranging from 72.010MHz (Ch11) through 72.990MHz (Ch60). For safety reasons, you must always
be aware of what channel you are using, and place the included frequency flags on your Tx any time while in use, so that no two
radios on the same frequency are functional in the same area at the same time.
CH 6
CH 5
Figure 2
AILERON AND ELEVATOR DUAL-RATE/EXPONENTIAL SWITCH: Moving this switch changes between the two dual-rate
settings for the aileron and elevator channels. The throws can be custom set to match personal preferences or particular aircraft.
This switch also flips between exponential rates (if used).
FLAP CONTROL DIAL / CHANNEL 6: Controls the servo connected to channel 6 in the receiver, and is often used to control
airplane flaps if applicable.
NECK STRAP HOOK: The included neck strap clips onto this hook.
AILERON / ELEVATOR CONTROL STICK: Controls the servos connected to Rx channels 1 (aileron) and 2 (elevator). Aileron
movement is controlled with horizontal movement of this stick. Elevator movement is controlled with vertical movement of this
DIGITAL TRIM LEVERS: Used to finely adjust the neutral or center position of the servo in each respective channel. This is
helpful to “dial in” the model’s surfaces for easier control. The 6XM’s trim controls are digital, as opposed to mechanical levers
which are found on most lower-cost or older radios.
CHARGE JACK: Input port for connecting the charger, to charge the battery while it’s inside the transmitter.
ON-OFF SWITCH: For turning the Tx’s main power on and off.
LIQUID CRYSTAL DISPLAY (LCD) AND PROGRAMMING CONTROLS: For viewing Tx operating parameters and adjusting
control settings.
THROTTLE / RUDDER CONTROL STICK: Controls the servos connected to Rx channels 3 (engine/motor throttle) and 4
(rudder). Rudder movement is controlled with horizontal movement of this stick. Throttle movement is controlled with vertical
movement of this stick.
TRAINER / THROTTLE CUT SWITCH: Operates the trainer and throttle cut functions.
RETRACTABLE LANDING GEAR SWITCH / CHANNEL 5: Controls the servo connected to channel 5 in the receiver. If the
model has retractable landing gear, moving this switch will extend and retract the gear.
ANTENNA: The transmitter emits its signal through the antenna. The antenna may be removed and replaced with another in
case it is inadvertently broken.
FREQUENCY FLAGS: This radio system transmits a signal on a pre-set frequency, or “channel”. Your frequency (noted as “MHz”)
and two-digit channel number are marked on the outside of the 6XM’s box. The frequency can also be identified by looking at the
crystal on the rear of the Tx, and the top of the Rx. All channels and corresponding frequencies in the 72MHz band are as follows:
11 . . .
12 . . .
13 . . .
14 . . .
15 . . .
16 . . .
17 . . .
18 . . .
19 . . .
20 . . .
21 . . .
22 . . .
23 . . .
24 . . .
25 . . .
26 . . .
27 . . .
. .72.010
. .72.030
. .72.050
. .72.070
. .72.090
. .72.110
. .72.130
. .72.150
. .72.170
. .72.190
. .72.210
. .72.230
. .72.250
. .72.270
. .72.290
. .72.310
. .72.330
28 . . .
29 . . .
30 . . .
31 . . .
32 . . .
33 . . .
34 . . .
35 . . .
36 . . .
37 . . .
38 . . .
39 . . .
40 . . .
41 . . .
42 . . .
43 . . .
44 . . .
. .72.350
. .72.370
. .72.390
. .72.410
. .72.430
. .72.450
. .72.470
. .72.490
. .72.510
. .72.530
. .72.550
. .72.570
. .72.590
. .72.610
. .72.630
. .72.650
. .72.670
45 . . .
46 . . .
47 . . .
48 . . .
49 . . .
50 . . .
51 . . .
52 . . .
53 . . .
54 . . .
55 . . .
56 . . .
57 . . .
58 . . .
59 . . .
60 . . .
. .72.690
. .72.710
. .72.730
. .72.750
. .72.770
. .72.790
. .72.810
. .72.830
. .72.850
. .72.870
. .72.890
. .72.910
. .72.930
. .72.950
. .72.970
. .72.990
Mount all servos in the model according to the airplane’s instruction manual. Be cautious of the
following points when installing servos:
1. Always use the rubber grommets, screws, and brass eyelets supplied when mounting the
servos in the airplane (see Fig. 3). Install a rubber grommet to each mounting lug on the servo.
Insert a brass eyelet to the bottom of each grommet. Insert a screw down through the hole in
each rubber grommet and to the mounting surface. Do not over-tighten the mounting screws.
Servos should be allowed to move slightly to compensate for vibrations within the model.
2. Use a servo horn which is long enough to accommodate the entire range of movement for
that particular control.
Figure 3
3. If a servo wire is too short to reach the receiver, insert a servo extension (available separately through Tower Hobbies, see page
20) in-between the servo and Rx.
4. No part of a servo’s case should make contact with the actual mounting
surface, servo tray or any other part of the airplane structure. Otherwise,
vibration will be transmitted to the servo and cause premature wear and/or
servo failure.
5. To mechanically center the servo’s output arm, connect the servo to the
Rx and turn on the Tx and Rx. Make sure the Tx’s sticks and four main
channel trims are at central position (see Fig. 4). Then, use an output arm
which can be mounted perpendicular to the pushrod when it is placed onto
the servo.
Figure 4
6. After installation, operate each servo over its full travel and inspect the
pushrods and servo arms to ensure they are not binding in any way. Make sure the controls do not require excessive force to
operate. If there is a noticeable buzzing sound coming from a servo there is probably too much resistance against its output arm.
This can cause excessive wear on the servo, inaccurate control, and quickly drain the receiver battery. Find and correct the
problem and re-check.
To mount the switch harness to the airplane, choose a location on the fuselage which is free from exposure to contaminants such
as engine oil, dirt, dust, and so on. Mounting the switch on the side of the fuselage opposite the muffler is best. It’s a good idea
to mount the switch in a location which will not accidentally be turned on or off during handling or storage.
Using the switch harness’ own mounting plate as a template, mark and cut holes in the side of the fuselage for the switch harness
lever and for the mounting screws. Make sure the holes closely match the dimensions of the switch harness’ mounting plate so
that the switch lever snaps freely in both directions, but does not interfere with the area around the holes for the mounting screws.
Make sure the switch harness lever is in the “OFF” position. Plug the switch harness’ red connector into the Rx channel marked
with a “B”. Connect the Rx battery to the female lead on the opposite end of the switch harness. The remaining lead on the switch
harness is for connection of the charger so the Rx battery can be charged directly through the switch harness for convenience.
Connect each servo to the Rx as shown in Fig. 5. Always insert the servo and battery or switch harness connectors into the Rx
firmly, to ensure solid physical and electrical connections are made. When connecting devices to the slots in the Rx, make certain
the alignment tab on all connectors are properly aligned with the “key” or notch in the slot in the Rx. When unplugging connectors,
never pull on the wires themselves - always pull on the plastic connector only. Otherwise, damage to the wiring could result. There
is a slot in the Rx for every channel in the Tx, designated as follows:
Flap (or 2nd
Flaperon) Servo
Gear Servo
Rudder Servo
Throttle Servo
Elevator Servo
Aileron Servo
Rx slot
Figure 5
Aileron, or right flaperon, or right elevon (for tail-less models)
Elevator, or left ruddervator (for V-tail models), or left elevon (for tail-less models)
Rudder, or right ruddervator (for V-tail models)
Retractable landing gear
Flaps, or left flaperon
Not used
Rx battery or switch harness
After all servos and the battery or switch-harness are connected, the Rx should be protected from vibration, shock and
temperature extremes by wrapping the Rx in foam rubber or other vibration-absorbing material (Tower part numbers HCAQ1000
or HCAQ1050). In areas of high heat and humidity, especially near large bodies of salt-water, seal the Rx against moisture (water,
fuel, exhaust, etc.) by placing it in a plastic bag and closing the open end with a rubber band before wrapping it in foam. To help
prevent the Rx from becoming damaged or disconnected from any other components, fasten it to the inside of the airplane with
Velcro® or a rubber-band.
To achieve maximum operational range and clear signal reception, NEVER cut the receiver’s antenna, or coil or mount it in the
model folded backwards. The antenna must be extended to its maximum length. The receiver antenna may be mounted inside
or outside the model.
Mounting the antenna inside the model: The antenna may be routed down through the inside of the fuselage, or through any
non-metallic housing or tube within the fuselage. To prevent unwanted electro-mechanical interference (EMI), keep the antenna
as far away as possible from engines/motors, servos, metal pushrods, wires and cables.
To mount the antenna outside the model:
A. Cut a small hole in the fuselage to exit the antenna wire. Make a
“strain relief” for the antenna wire by cutting off the end of an unused
servo arm (see figure 6). Feed the antenna through two or three holes
in this strain relief, then guide the antenna through the exit hole in the
fuselage. Make sure there is enough slack in the wire between the
location of the Rx and the exit hole to keep the antenna from
accidentally being pulled out of the receiver. If possible, insulate the
hole with a rubber grommet or a small piece of rubber tubing.
B. Cut off the end of another servo horn to act as a hook. Insert the
end of the antenna through two holes in the hook as shown in Figure
6. Connect the hook to the airplane’s vertical stabilizer with a rubber
band that is wrapped around a T-pin. Allow any excess antenna length
to trail behind the hook, but don’t let the antenna drag the ground.
Figure 6
One of the most common causes for crashes is improperly or inadequately charged radio batteries, especially the Rx battery. The
rechargeable NiCd (nickel-cadmium) batteries inside the Tx and the Rx pack come from the factory with only a partial charge and
will require a full charge before attempting to fly the model. Make sure the radio batteries are charged overnight with the included
charger the night before you go to fly. The 6XM Tx has a built-in voltage indicator, so it’s simple to determine the condition of the
Tx battery (see Fig. 8 on page 10). If you are uncertain about how much charge is left on your Rx battery, it’s best to err on the
side of caution and check the voltage of the battery before flight. The easiest way to accomplish this is to check the battery with
an expanded scale voltmeter. Tower Hobbies’ Expanded Scale Voltmeter MkII (TOWP1181) can check this battery voltage while
applying a realistic load on the battery.
1. Plug the A/C wall charger into a standard 110V AC wall outlet.
2. Connect the charger’s round plug to the charge jack on the right side of the Tx. The Tx’s power switch must be in the “OFF”
position for the battery to accept a charge. The charger’s “Tx” LED will illuminate to indicate that a charge is being delivered to
the battery.
3. Connect the charger’s square plug to the Rx battery. This can be done in 2 ways: (a) connect the charge cord directly to the
battery pack, or (b) if the Rx battery is already connected to the switch harness, connect the charge cord to the vacant connector
on the switch harness. The charger’s “Rx” LED will illuminate to indicate that a charge is being delivered to the battery.
4. Batteries which had been fully discharged will take about 15 hours to fully charge. Charge each battery for 15 hours with the
supplied wall charger. The batteries may become warm as they charge, this is normal. When charging is complete, disconnect
the charge leads from the batteries, and disconnect the charger from the wall.
If using an aftermarket fast charger to charge the batteries be certain to follow the instructions provided with the charger so not to
overcharge the batteries. It is NOT recommended to exceed a fast charge rate of 1.0 amp on the 6XM’s batteries. The batteries
should also be discharged or cycled periodically to keep them in optimum operational condition. Cycling should be done every
one to two months, even during the winter or periods of long storage. If using a cycler with a readout, note the capacity after the
batteries have been cycled. If the Tx or Rx battery has been cycled multiple times in succession and the cycler shows that the
battery will not deliver over 80% of its rated capacity the batteries may need to be replaced.
After the switch harness, battery, and all servos are properly connected perform a simple system check to ensure everything is in
proper working order.
First turn “ON” the Tx power switch, then the Rx. With all sticks and trims at center position, make sure all servos operate in the
proper directions according to the movement of the Tx stick. The control surfaces should be at neutral position when the sticks
are at center. If neutral position of the control surface has been changed, even though the stick is still at center, change the length
of the pushrod by adjusting the clevis on the end of the rod. Make sure each control surface is set according to the airplane’s
For engine throttle, set the position of the servo horn so that the engine’s throttle is opened fully when the Tx throttle stick is at
maximum (up), and is closed fully when the Tx’s throttle stick and trim are at minimum (down).
Once all controls and linkages are confirmed it’s time to range test the radio. It is important to range-check your system prior to
the first flight of every new model. It’s not necessary to do a range check before every flight, but is a good idea to perform a range
check before the first flight of each day.
1. Turn on the Tx, then the Rx.
2. With the Tx antenna collapsed, Rx antenna fully extended, and the model sitting on the ground, walk away from the model
while operating the controls. Smooth movement of all control surfaces on the model should be achieved from at least 100 feet
away (20 to 30 paces) from the Tx. If jittering occurs, or if control of the Rx is completely lost, refer to the Troubleshooting Guide
at the end of this manual before proceeding.
3. If everything operates correctly, prepare to start the engine. Set the Tx in a place that is easily accessible, yet far enough away
that it will not make contact with the airplane’s rotating propeller. Make sure the Tx’s throttle stick is all the way down.
4. Start the engine.
5. Perform another range check with an assistant holding the plane, and operate the engine at various speeds. If the servos jitter
or move inadvertently there may be a problem. Do not fly the plane! Look for loose servo connections or binding pushrods. Also
be certain you are the only one on your frequency, and that the battery has been fully charged. Refer to the Troubleshooting Guide
in the rear of this manual for more information.
6. Attach the included “frequency flags” to the Tx antenna before every flight. Peel the backing
from the frequency number stickers and apply them to both sides of the plastic clip as shown
in Fig. 7. Snap the end of the clip to the base of the antenna as shown. IMPORTANT: It’s
critical that everyone at the flying field knows which channel you are using when flying!!
Only ONE RADIO can be used on a single frequency at any one time. If you turn on your
Tx while another person is flying on the same frequency, a crash will likely result which could
also pose a risk of bodily harm to anyone nearby. NEVER turn on your Tx until you have
permission from your instructor, and you have possession of the frequency clip from the
frequency board at your site.
Once all necessary changes have been made and all range checks have passed, prepare for
flight. Fully extend the transmitter antenna. Avoid pointing the antenna directly at the model as
the signal is weakest in that direction.
Figure 7
SCROLL MENU key - use to select desired
function while programming
Computerized Airplane Radio
To open
programming menu;
Press both keys
simultaneously and
hold for one second
1 = ail
2 = ele
3 = thro
4 = rud
5 = gear
6 = flaps
SELECT CHANNEL key - use to select items within
function to be set or changed in the screen
Figure 8
ADJUST VALUES lever - use this lever to input
numbers or settings
SCROLL MENU button: To scroll through different setup menus in the display.
SELECT CHANNEL button: To select values and channels on the LCD to be set or changed.
To enter the programming mode, press BOTH the SCROLL MENU and SELECT CHANNEL buttons simultaneously and hold
for one second.
ADJUST VALUES lever: To adjust settings or values of the various functions on the LCD.
LIQUID CRYSTAL DISPLAY (LCD): When the Tx is initially turned on, the model memory number (1 through 6) and Tx battery
voltage values are displayed on the LCD. When prompted by the user as described throughout the remainder of this section of
the manual, different functions and settings in the memory can be displayed on screen.
The transmitter’s own operating voltage is shown on the bottom of the screen in “v” or volts. This is the voltage of the NiCd battery
which is stored inside the small door on the rear of the Tx case. When this voltage drops below approximately 8.5 volts the LCD’s
battery icon (shown above) will flash and the low-battery alarm will continuously “beep” until the Tx is turned off. The low-battery
alarm is a warning that the Tx will lose all power in approximately four minutes (or maybe less), and you should land your model
immediately before losing control. As a rule of thumb, NEVER fly a model if the Tx voltage is below 9.5V. Fully charge the Tx
battery before flying.
To view or change any of the current settings in the Tx the programming mode must always be entered. To do so, turn on the Tx,
then press and hold the “SCROLL MENU” and “SELECT CHANNEL” buttons simultaneously for one second. The LCD will
automatically change and two beeps will sound to indicate that program mode has been entered. Once in program mode,
SCROLL MENU button will be used to scroll through each of the seven programmable functions:
“MODEL” = model number
“REVERSE” = servo reversing
“D/R” = dual rates & exponentials
“E.P.A” = end point adjustments
“TRIM” = sub-trims
“P.MIX” = user programmable mix
“W.MIX” = factory preset wing mixes
“FP” = flaperon mixing
“FPv” = flaperon + v-tail
“V” = v-tail mixing
“EL” = elevon mixing
(press SCROLL MENU and SELECT CHANNEL keys for one second)
Models 2-5
Press Select
Channel Button
[CH 2-5]
[CH 2-3]
Figure 9
Once any of the function screens are shown, pressing the SELECT CHANNEL button can select a variety of options to choose
from. To change any of the values shown in a function screen, move the ADJUST VALUE lever either up or down. To exit
programming mode and return to the main LCD screen, again press and hold the SCROLL MENU and SELECT CHANNEL
buttons simultaneously for one second.
To best understand how all programming functions can effect the operation of the model, read through the entire list of
programmable features below before setting up the model. When actually setting up a model you should have the model in front
of you with the power on so you can actually see the effects of your programming inputs and measure the control throws. If you
will not be using any mixing functions you can skip that section until which time you will use them. To begin studying the
programming functions, turn on the Tx and enter the programming mode and proceed below.
The 6XM can store parameters for six models in memory. This means any control settings (E.P.A values, trim settings,
programmable mixes, etc.) for up to six different models can be stored in memory and re-called at any time. This makes it very
quick and easy to prepare the Tx for any of six different airplanes at any time.
Once a memory has been programmed, it’s a good idea to record that information in the chart at the end of this manual so you
can have a permanent record which can be referred to in the event of a problem with the internal power system in your Tx or if
you accidentally erase the settings for a model.
To select a model memory:
1. Enter programming mode (press and hold the SCROLL MENU and SELECT CHANNEL buttons).
2. “MODEL” will show on the LCD and the memory number for the currently active model will be
3. To change to a different model memory press the ADJUST VALUES lever up or down to find the
desired memory number. All programming now viewed on the LCD will be for this model memory until
the model number is changed again.
Figure 10
IMPORTANT! When the Tx is turned ON make sure the model number matches the proper airplane. Failure to do so could cause
improper control and operation of the airplane and lead to a crash, and could pose a significant safety hazard. It might be helpful
to tape a small quick reference chart on the rear of your Tx or your flight box to list which model number in the Tx’s memory
matches which airplane that you have.
All data for any one model memory can be reset at any time to the original factory default. This function is useful when you want
to remove the programming for one type of model and enter parameters for a new model. To reset data:
1. Enter programming mode. In the “MODEL” screen move the ADJUST VALUES lever up or down to
find the model memory number you wish to reset.
2. Press the SELECT CHANNEL button, and “CL” will show on the LCD.
3. Press the ADJUST VALUES lever up or down and hold for two seconds. “CL” will briefly flash, then
stop flashing which will indicate that this memory has been cleared to factory default.
CAUTION: Resetting a model memory will PERMANENTLY ERASE ALL programming parameters for
that model. That data cannot be recovered.
Figure 11
This function changes the rotational direction of a servo’s output. For example, if moving a Tx stick upwards causes the servo to
rotate counter-clockwise, reversing the servo rotation setting in the transmitter’s programming means that moving the Tx stick
upwards will now cause the servo to rotate in a clockwise direction. After reversing any channel be sure to check the model’s
control surface to make sure it’s operating in the proper direction. Reversing direction of the wrong servo (and not checking it
before flight) is a very common cause of a crash! To reverse a servo:
1. Enter the programming mode.
2. Press the SCROLL MENU button to find the “REVERSE” screen.
3. Use the SELECT CHANNEL button to find the channel that you wish to reverse. The channel
number at top-right will be flashing on screen.
4. Move the ADJUST VALUES lever down to reverse the servo’s rotation. The direction arrow onscreen will move next to the “REV” indicator. Or, move the lever upward to make the servo rotate in
the normal direction, and the arrow will move next to the “NOR” indicator.
5. Use the SELECT CHANNEL button to display other channels to be reversed. Or, press and hold the
SCROLL MENU and SELECT CHANNEL buttons to return to the main screen.
Figure 12
The dual-rate controls for the aileron and elevator channels (1 and 2) are controlled by the SAME switch above the right stick.
Moving the switch will change the dual-rates for both channels at the same time. However, the amount of change in servo travel
for each channel can be programmed independently.
The amount of deflection for each channel is based on a percentage of the servo throw that is set in the End Point Adjustment
screens (see page 14), and may be set between 0% and 100% of the EPA values. Note: When first setting up a model, set the
EPA adjustments before setting the dual-rate settings. When setting the EPAs on a new model for the first time, the dual-rates
should be set to 100%. It’s possible to set a dual-rate value to 0% which would effectively cause that channel to be inoperative,
and could result in a crash.
To set the dual-rates and exponentials:
1. Enter the programming mode.
2. Press the SCROLL MENU button to find the “D/R” screen that also shows a “%” value.
3. The dual-rate settings for channel 1 (aileron) will be displayed. If you don’t wish to adjust the dualrates for the ailerons press the SELECT CHANNEL button to find “CH2” for elevators. Note: If the
percent value disappears and a “+/-“ sign appears you have pressed the SELECT CHANNEL button
too many times. Press the SELECT CHANNEL button repeatedly until the “D/R %” screen returns.
Figure 13
4. Dual-rate values for the up and down switch positions are set independently, and that moving this switch will also cause the
arrow icons on-screen to move as well. Place the switch in the desired position. Move the ADJUST VALUES lever up or down to
change the dual-rate throw percent until the desired control throw percentage is achieved. Repeat this for both switch positions.
TIP: Generally, pilots prefer to have the switch in the “up” position for the high throw rate and in the “down” position for the low
throw rate.
5. If dual-rates for the aileron channel have been set, press SELECT CHANNEL to set dual-rates for the elevator (CH2) and repeat
step 4.
6. Skip to step 10 if you do not wish to change EXPONENTIAL settings. Otherwise, setting the exponential functions is
performed very similarly to setting the dual-rates.
7. Press the SELECT CHANNEL button to find the “D/R” screen that also shows a “+/-” value for channel 1 (ailerons). If you don’t
wish to adjust the exponential for the ailerons press the SELECT CHANNEL button to find “CH2” for
elevators. Exponential values for the up and down switch positions are set independently, and that
moving this switch will cause the arrow icons on-screen to move as well. Negative exponential (-)
decreases initial servo movement, but rapidly increases servo movement as the Tx stick is moved
farther away from center. Positive exponential (+) increases initial servo movement, but decreases
servo movement as the Tx stick is moved farther away from center. The exponential “curve” may be
set anywhere between -100% and +100%.
8. Place the dual-rate switch in the desired position (up or down). Move the ADJUST VALUES lever up
Figure 14
or down to find the desired exponential value. To change the exponential percentage for when the
switch is in the opposite position, flip the switch, then use the ADJUST VALUES lever again to change the exponential percentage.
9. If exponential for the ailerons has been set, press SELECT CHANNEL and repeat step 8 to set exponential for the elevator
10. Press and hold the SCROLL MENU and SELECT CHANNEL buttons to return to the main screen.
This feature is designed to set the absolute maximum amount of throw or rotation that a servo can achieve. This can be helpful
for when you may need to limit the amount of servo throw to keep a pushrod from binding or to keep from pushing a control surface
too far which could damage the model.
The pushrods should first be connected to the servo arms and control horns so that the proper amount of deflection can be
achieved on the model. Adjust the end point adjustments can be made in the Tx to make small changes in the servo throw until
the desired control throw is achieved. The throws should be set so that the end points are as close to 100% as possible. If the
end points must be set below 70%, or above 120% to get the desired throw it would be a good idea to adjust the pushrod
connections so that the end points can be set more closely to 100%. Note: When the end point adjustment for any channel is set
to 100% the maximum throw for the servo is approximately 40° for channels 1 through 4, and approximately 55° for channels 5
and 6. Changing the end points will also cause a change in servo throw when using the dual-rate function. For this reason, the
end points should be set before setting the dual-rates. To set the end points:
1. Enter the programming mode.
2. Press the SCROLL MENU button to find the “E.P.A.” screen.
3. The E.P.A. settings for channel 1 (aileron) will be displayed on the top-right side of the screen. If you
don’t wish to adjust the E.P.A. for the ailerons press the SELECT CHANNEL button to find “CH2” for
4. Note that TWO end point settings exist for every channel - one setting for each end of throw. A small
arrow indicator is located above and below the channel number. Moving the stick for the channel
shown from one end to the other will cause the arrow indicator to move as well. So, for the aileron
channel, moving the right stick to the far right will cause the arrow to point in one position, and moving
the stick to the far left will cause the arrow to reverse direction. End points can be set for both positions
on all channels.
Figure 15
5. Move the control for the selected channel to one side and hold, then press the ADJUST VALUES lever until the desired E.P.A.
value is found for that direction. Then move the control for that channel to the opposite side and repeat.
6. Use the SELECT CHANNEL button to find all other channels to adjust, and repeat as needed.
7. Press and hold the SCROLL MENU and SELECT CHANNEL buttons to return to the main screen.
Note: A flap control lever is included with the 6XM. This lever can be used to mechanically limit the rotation of the dial, which can
help to prevent accidentally retracting the flaps beyond their full “up” position. To use the flap lever, turn the flap dial until the flaps
are fully retracted (up). Slide the flap control lever over the dial so that the end of the lever is making contact with the Tx case.
This will prevent the dial from being over-rotated past the full up position of the flaps.
There are four digital trim levers on the front of the transmitter, one for each of the four main channels. The purpose of the trims
to make very fine adjustments to the position of the servo outputs. Trims can be adjusted while the model is on the ground, or
during flight to help the model fly straight and level. Briefly pushing the trim buttons (up and down, or left and right) will adjust the
servos. Three of the trims are for adjusting the neutral position of the aileron, elevator and rudder servos. The throttle trim is used
to set the idle R.P.M. of the engine when the throttle stick is all the below ½ stick, so that the final closing of the carburetor can be
adjusted without affecting the servo throughout the rest of the range of rotation.
Note: The trims are electronic and not mechanical. Do not attempt to force the trim levers past their stops. Each push of a trim
button will create a “beep” to confirm operation.
In the beginning, it’s best that the control surfaces are centered physically on the model, while the servos themselves are centered,
and the transmitter’s trims should be centered as well (would be displayed as “+/- 0” on the LCD). Then, once airborne you can
re-trim the channels as necessary to achieve stable flight. To center the servos:
1. Turn on the Tx and Rx. Operate the controls to make sure the servos respond in the correct direction. If necessary, use the
6XM’s reversing function to reverse the direction of any servos (see page 12).
2. Center the throttle control stick.
3. Place the arms on the servos so they are perpendicular to the pushrods (see Fig. 4 on page 7). It is okay to cut off any unused
servo arms.
4. Connect the pushrods to the control surfaces. Adjust the length of the pushrods until the control surfaces are centered when
the servos are centered.
To adjust the trim settings:
Once all servos / control surfaces have been connected and all end points and dual rates have been set, get the model airborne. While
in flight, adjust the trims for each main channel as necessary so that the aircraft will fly straight and level. If a lot of trim is required to
correct any control it may be necessary to land the model and re-adjust the pushrods for that control so that the trim can be returned to
neutral (zero). Adjusting the trim levers will change the servo’s position in increments of “5” as seen on the LCD.
If finer adjustments are required, land the model, then enter the programming mode as described below to adjust the trims in
increments of “1.”
1. Enter the programming mode, and press the SCROLL MENU to find the “TRIM” screen.
2. Press the SELECT CHANNEL button to find the channel you wish to adjust.
3. Move the ADJUST VALUES lever up or down to adjust the trim as needed.
4. Repeat these steps to finely adjust the trim for any other channels.
Figure 16
5. Press and hold the SCROLL MENU and SELECT CHANNEL buttons to return to the main screen.
The 6XM includes one use-definable or “programmable” mix whereby control for one channel can be
custom designed to mix with another channel. Sometimes airplanes with unique wing designs require
some mixing for proper control. Other times, mixes can be used to correct irregular flight tendencies
of the model. To set up a user-defined programmable mix:
1. Enter the programming mode.
2. Press the SCROLL MENU button to find the “P.MIX” screen (see figure 17).
Figure 17
3. The “INH” or inhibit indicator will be flashing. Press the ADJUST VALUES lever up to turn the
programmable mix “ON”.
4. Set the “master” channel – the channel which will control the mix. Press the SELECT CHANNEL
button twice to find a channel number with the arrow above it (to denote the master channel). Press
the ADJUST VALUES lever to select which channel to be the master (see figure 17A).
Figure 17A
5. Set the “slave” channel – the channel that will be controlled by the mix. Press the SELECT CHANNEL
button again cause the arrow to now point down (to denote the slave channel). This channel will be affected
by movement of the channel listed in point 4 above (the “master” channel will affect the “slave” channel). Press
the ADJUST VALUES lever to select which channel will be the slave (see figure 17B).
6. Press the SELECT CHANNEL button twice to find the “P.MIX” display that shows a percentage value.
This is where you set the how much the master channel will affect the slave channel in the mix. Move
the ADJUST VALUES lever up or down to set the mix percentage, which ranges from -100% to +100%.
A value of “+/- 0 %” means the master channel will have no effect on the slave channel. The “+” and
“-“ indicators note the direction in which the master will affect the slave channel (see figure 17C).
7. Check the controls of the airplane and observe how the model responds to be certain you have
achieved the correct mix and that the throws are as desired. Note: Mixing recommendations might be
included in the airplane’s instruction manual. Press and hold the SCROLL MENU and SELECT
CHANNEL buttons to return to the main screen.
Figure 17B
Figure 17C
The 6XM’s four “wing” mixes are designed so the master and slave channels are each pre-set. The user simply selects the proper
mix to fit the aircraft. The four pre-set factory mixes are: “FP” for flaperons, “V” for v-tail, “FPv” for flaperons + v-tail, and “EL” for
elevons. Determine the appropriate mix to match your application. Note that when using a mix, reversing the direction of any one
servo in the mix will reverse the direction of that servo but not the other servo in the mix. To reverse both servos in mix, each must
be reversed separately. Refer to the “Reversing” section on page 12 to achieve the correct direction of servo throws. If there’s
doubt about how to properly set a mix for your airplane, refer to your airplane’s instruction manual or supplier for details. To select
a wing mix:
1. Enter the programming mode.
2. Press the SCROLL MENU button to find the “W.MIX” screen. The first W.MIX screen will also show “FP”, for flaperons. Pressing
the SCROLL MENU button again will step the menu to the other three pre-set mixes, for “V” (v-tail, jump to step 4), “FPv” (flaperons
+ v-tail, jump to step 5), and “EL” (elevons, jump to step 6).
3. “FP” – FLAPERON MIXING: Flaperon mixing allows the ailerons to be used both as
ailerons and as flaps. Here, the ailerons will function like normal with the aileron stick.
And, adjusting the flap control dial (CH6) will also move the ailerons so that they function
like flaps. Note that the use of flaperon mixing means that both of the airplane’s ailerons
must be controlled by separate servos. To set the aircraft for flaperon mixing:
A. Connect the aileron servo in the right wing to receiver channel 1 (aileron), and connect the
aileron servo in the left wing to receiver channel 6 (flaps).
B. Move the ADJUST VALUES lever to find the “FP” screen. The flaperon mix will now be on.
C. The servo travels will automatically be reduced to 60% and 40%, but full servo throw will still be
achieved when the aileron stick and the flap control dial are moved to their full extremes.
D. Jump to step 7 if no other mixing is needed.
Figure 18
4. “V” – V-TAIL MIXING: Some aircraft have a tail section which does not have a perfectly vertical wing
or “stabilizer” and perfectly horizontal stabilizer. Rather, the tail has angled surfaces which resembles
a letter “V”. V-tail aircraft (such as a Beechcraft Bonanza) require a radio having a mix that allows the
two tail surfaces to perform the function of an airplane’s elevator and rudder, or “ruddervator”. Note
that the use of v-tail mixing means that both of the airplane’s tail surfaces must be controlled by a
separate servo. To set the aircraft for v-tail mixing:
A. Connect the left ruddervator servo to the receiver channel 2 (elevator), and connect the right
ruddervator servo to receiver channel 4 (rudder).
B. Move the ADJUST VALUES lever to find the “V” screen. The v-tail mix will now be on.
C. The servo travels will be automatically reduced to 60%, but full servo throw will still be achieved
when the elevator stick and rudder stick are moved to their extremes.
D. Jump to step 7 if no other mixing is needed.
Figure 19
5. “FPv” – FLAPERONS + V-TAIL: The flaperons + v-tail function is used when both flaperons and
v-tail mixing is required. To set the flaperons + v-tail mixing:
A. Connect the left ruddervator servo to receiver channel 2 (elevator), and connect the right
ruddervator servo to receiver channel 4 (rudder).
B. Connect the aileron servo in the right wing to receiver channel 1 (aileron), and connect the
aileron servo in the left wing to receiver channel 6 (flaps).
C. Move the ADJUST VALUES lever until “FPv” is shown. The flaperon + v-tail mix will now be on.
D. Jump to step 7 if no other mixing is needed.
Figure 20
6. “EL” – ELEVON MIXING: Elevon mixing is designed for “flying wing” type aircraft which do not have a traditional “tail” section,
such as a delta-wing or flying wing airplanes (like the B-2 Stealth Bomber). This feature mixes channel 1 (aileron) and channel 2
(elevator) to allow the airplane’s main horizontal control surfaces to function in unison (as elevators), and in opposition (as
ailerons). Note that the use of elevon mixing means that (a) each of the airplane’s elevons must be operated by a separate servo.
To set the aircraft for elevon mixing:
A. Connect the servo in the right wing to receiver channel 2 (elevator), and connect the servo in
the left wing to receiver channel 1 (aileron).
B. Move the ADJUST VALUES lever to find the “EL” screen. The elevon mixing will now be on.
C. The servo travels will automatically be reduced to 60%, but full servo throw will still be achieved
when the control stick is moved to the extremes for both servos. (The purpose for this reduction
is so that, for example, if applying full up “elevator,” there will still be servo throw “left over” so
the servos can travel yet farther when aileron is simultaneously applied.)
7. Once a mix has been activated, press and hold both the SCROLL MENU and SELECT CHANNEL
buttons for 1 second to exit the programming mode.
8. Move the servos to their full extremes to make certain the mixes and servos are functioning properly,
and not overdriving the controls. If necessary, re-adjust the servo’s linkages to achieve the correct
control throws.
Figure 21
The 6XM includes a trainer function which aids in training students how to fly. CAUTION: Only train with an experienced pilot
controlling the teacher’s transmitter. You’ll learn faster, and failure to do so could risk personal injury to yourself and others, and
risk damage to your model and other property. If you are unsure of where to locate a flying club in your local area, contact the
Academy of Model Aeronautics (AMA) who can assist you in finding one of their more than 2,300 chartered clubs across the
country. Most of the clubs provide instructor training programs and insured newcomer training.
Academy of Model Aeronautics
5151 East Memorial Drive
Muncie, IN 47302-9252
Tel: (800) 435-9262 Fax: (317) 741-0057
For training, the 6XM must be linked to another Tx with a “trainer cord” (available separately, see page 20). The 6XM’s trainer
function is compatible with any Tower Hobbies or Futaba brand FM aircraft radio system which also has a trainer jack. To use the
trainer function:
1. Find a trainer cord having a plug on one end that is compatible with the 6XM’s trainer jack, and having a plug on the opposite
end that is compatible with the trainer jack on the second Tx. The two most common trainer jacks are the small, square “micro”
jack (used on most newer Tower Hobbies and Futaba brand radios), and the round “DIN” type jack (used on older model Tower
Hobbies and Futaba brand radios).
2. The teacher will use the main Tx that is already set up for the airplane. The student will hold the Tx on the opposite end of the
trainer cord
3. If the student’s Tx has PCM/PPM capability, set it to PPM. Allow the teacher to make sure the reversing and trim settings of the
student’s Tx match that of the teacher’s Tx.
4. Remove the Rf module or crystal from the student’s Tx.
5. Collapse the antenna on the student’s Tx, and fully extend the antenna on the teacher’s Tx.
6. Connect the trainer cord to both Tx’s.
7. Turn on the teacher’s Tx, but DO NOT turn on the student’s Tx. When the trainer cord is connected to the student’s Tx its control
section will automatically turn on but the Rf section will not emit a signal.
8. Turn on the Rx in the airplane and make sure the teacher’s Tx has control of the surfaces on the aircraft.
9. Pull and hold the spring-loaded trainer switch on the teacher’s Tx, and then make sure the student’s Tx has control of the
surfaces on the aircraft. Allow the teacher to make any necessary adjustments to the student’s Tx so that the surfaces on the
aircraft are trimmed and respond correctly to the inputs on the student’s Tx. This is to make sure there are no abrupt changes to
the attitude of the airplane when changing between the teacher and student’s Tx’s.
10. During flight, the teacher will pull and hold the trainer switch on his Tx to pass control of the aircraft to the student. The teacher
can instantly re-gain full control of the airplane by releasing the trainer switch on his Tx.
Note: There may be a very brief delay from when the teacher moves the trainer switch on his transmitter before the student takes
control of the aircraft. In most situations this momentary delay will go unnoticed.
Many pilots set up their engine and radio so that the engine runs at idle when the throttle stick is at minimum position, but the
throttle trim is just above minimum. This is often done for the purpose of landing or taxiing the airplane while at idle. But in such
cases a method needs to be available to quickly shut off the engine completely, and the throttle cut function can do this.
To set up the throttle-cut, turn on the Tx and Rx, and move the throttle stick to the full down position. Activate the throttle-cut by
rapidly moving the TRAINER / THRO CUT switch two times. When holding the throttle cut switch, notice the momentary position
of the carburetor barrel. If the barrel is completely closed it should kill the engine. If the barrel is NOT completely closed it may
be necessary to adjust the throttle channel’s end point adjustment (see page 14) so that the barrel is closed completely at
minimum throttle. It’s important to note that the throttle-cut function works only when the throttle stick is in the down position.
Both control sticks offer the ability to adjust their length. This can be done to customize the Tx to the size of your hands. To adjust
the length of a stick, hold the base of the stick (B) with one hand, and with the other hand rotate the tip of the stick (A) counterclockwise to loosen it from the base. Rotate the stick base B to lengthen or shorten the length of the stick. Once the proper length
is found, lock the stick by holding the stick base B, then rotating the stick tip A in a clockwise direction.
Figure 22
The 6XM may be operated in one of four different stick modes” (1, 2, 3, or 4). The “mode” refers to the which sticks control which
of the four main channels on the airplane. The factory default for the 6XM is to operate in mode 2, which is most commonly used
in the U.S.. In mode 2, the right stick controls aileron (side to side) and elevator (up and down), and the left stick controls throttle
(up and down) and rudder (side to side).
Mode 1 is the second most common stick mode, where the right stick controls aileron and throttle. The left stick controls elevator
and rudder. Modes 3 and 4 are rarely used, but can be selected if desired.
To change the 6XM’s operational mode, make sure the Tx’s power switch is turned OFF, then simultaneously press and hold the
SCROLL MENU and SELECT CHANNEL buttons, then turn the Tx’s power switch ON. A single numerical digit will show onscreen. Move the ADJUST VALUES lever up or down to change the mode. If a mode is selected that moves the throttle control
to the right stick (such as mode 1), the mechanical ratchet for the throttle stick will have to be physically moved from one stick to
the other. This can be done by Hobby Services (see page 21).
Flight preparation should be done at the flying field. If you are an inexperienced pilot, be certain your flight instructor performs the
following checks with you.
1. Make sure all batteries are charged.
2. Pull the frequency clip from the frequency control board.
3. Check the airplane before flight. Turn on the Tx, then the Rx. Make sure the Tx is set on the correct model memory to match
the model you will be flying. Make sure all batteries are charged.
4. Check the operation of all controls, for smooth operation with no binding of any controls or unwanted noise from any servos.
5. Range check the radio.
6. Fully extend the Tx antenna. Never fly without fully extending the Tx antenna, as it will decrease operational signal range of the
system. Do not point the antenna directly at the model as the transmitter’s weakest signal is emitted directly off the tip of the
antenna. The strongest signals from a Tx antenna are emitted at an oblique angle off the side of the antenna.
7. Check the flying site and be aware of obstacles which could obstruct safe flight, such as other modelers, other models, fences,
light poles, etc.
Find a suitable flying site. If you are a beginner modeler, it’s highly recommended to become a member of a local R/C club which
has a designated flying site for R/C model aircraft. It’s also highly recommended to join the AMA (Academy of Model Aeronautics).
Membership with the AMA is required to fly at one of the over 2,500 AMA chartered clubs in the U.S. Among other benefits, the
AMA provides insurance to its members who fly at sanctioned sites and events. Training programs and instructors are also
available at AMA clubs to help you get started the right way. Contact the AMA at the address or toll-free phone number below:
Academy of Model Aeronautics
5151 East Memorial Drive
Muncie, IN 47302-9252
Tele. (800) 435-9262
Fax (765) 741-0057
Or via the Internet at: http://www.modelaircraft.org
IMPORTANT: If you do insist on flying alone you must be aware of your proximity to any local R/C club flying sites. If you fly within
six miles of an R/C club site, and if you fly on the same frequency as someone at the flying site there is a strong possibility that
both models may crash due to radio interference. An out-of-control model can cause significant property damage and/or
severe personal injury!! Therefore, for safety reasons, it’s highly recommended to fly at an R/C club site.
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.
Tower Hobbies carries a variety of flight pack accessories for which to equip your models, including receivers, servos, switch
harnesses, battery packs, servo mounting hardware and more. Consult Tower Hobbies to order.
(order by frequency)
TOWM4505 .......TS-10 MICRO SERVO
TOWM4545 .......TS-69 STD BB SERVO
TOWM4565 .......TS-75 ¼ SCALE SERVO
TOWM6000 .......TX NICD 9.6V 600MAH
TOWM6020 .......RX NICD SQUARE 4.8V 600MAH
TOWM6110 ......ANTENNA 4FM, 4TH, 2TW, 6FM, 6XM
The 6XM’s Tx and Rx batteries are nickel-cadmium (NiCd). The RBRC® seal on the 6XM’s batteries indicates that
Tower Hobbies is a paid participant in the Rechargeable Battery Recycling Corporation’s program to collect and
recycle NiCd batteries at the end of their useful life. The RBRC program provides a convenient alternative to
placing used NiCd batteries into the trash or the municipal waste stream, which may be illegal in your area. Please
call 1-800-8-BATTERY for information on NiCd battery recycling and disposal bans/restrictions in your area. Tower
Hobbies is proudly committed to preserving our environment and conserving our natural resources.
Problem: Short range
Possible causes and cures: Collapsed or loose Tx antenna: fully extend antenna and make sure it’s tight. Rx antenna not fully
extended or poorly routed: re-route and fully extend antenna away from other components. Interference: check frequencies in
area, check Rx installation. Severed Rx antenna: send to Hobby Services for installation of new antenna. Weak Tx or Rx battery:
fully charge batteries prior to use. Rx or Tx out of tune: send to Hobby Services for re-tuning. Crash damage: send to Hobby
Services for inspection and repair. Faulty Rx or Tx crystal: install new crystal and perform range check.
Problem: Short run time
Possible causes and cures: Weak Tx or Rx batteries: fully charge batteries prior to use, may need cycling. Binding servos
causing excess battery drain: check pushrods to remove mechanical binding. Too many servos: use fewer servos if possible, or
use a higher capacity battery pack.
Problem: Tx voltmeter shows good battery voltage, but servos do not function.
Possible causes and cures: Rx batteries are drained: fully charge Rx batteries prior to use. No power to receiver: move Rx
switch harness to “ON” position. Switch harness connected incorrectly: make sure all leads are in the proper positions. Rx not
receiving signal: check or replace Rx or Tx crystal.
Problem: Interference or servos glitching
Possible causes and cures: Another Tx is on your channel: do not operate your system until your frequency is free. Outside
Rf interference: check local R/C club to learn of dangerous frequencies in your area. Engine or motor noise: re-route Rx antenna
or servo leads as far away from engine as possible
Problem: One glitching servo
Possible causes and cures: Malfunctioning servo: replace servo and try again. Outside interference: check quality and
installation of servo lead or extension.
Problem: One or more servo operates in wrong direction or is affected by another channel.
Possible causes and cures: “Reverse” setting backwards in Tx: change programming to reverse servo rotation. Servo mounted
backwards: re-mount servo. “P.MIX” or “W.MIX” has been activated: correct or cancel the mix.
For assistance on the operation of your system contact Tower Hobbies Customer Service at the web addresses, or fax or
telephone numbers below:
Tower Hobbies
Telephone: 1-800-637-6050
Telephone outside the US and Canada: 217-398-3636
Fax: 1-800-637-7303
Fax outside the US and Canada: 217-356-6608
Via the internet:
E-Mail: info@towerhobbies.com
Contact us on the web: http://www.towerhobbies.com
Via mail:
Tower Hobbies
P.O. Box 9078
Champaign, IL 61826-9078
Tower web address
If unable to resolve the problem, pack the system in its original container with a note enclosed and a thorough, accurate description of the
problem(s) and send to Hobby Services at the address shown in the warranty section below. Include the following in your note:
• Symptoms
• Any unusual mounting conditions
• An inventory of items enclosed
• The items that require repair
• Your name, address, and telephone number
• Include the warranty card if warranty service is requested
1-YEAR LIMITED WARRANTY - *U.S.A. and Canada Only
Tower Hobbies 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, Tower Hobbies 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) for warranty service.
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, Tower Hobbies 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 Tower Hobbies product, warranty or non-warranty, send it post-paid and insured to:
Hobby Services
3002 N Apollo Drive Suite 1
Champaign, IL 61822
Tel: (217) 398-0007
Contact us on the web: http://www.hobbyservices.com
No part of this manual may be reproduced in any form without prior permission. The contents of this manual are subject to change
without prior notice. Tower Hobbies is not responsible for the use of this product
Tower Hobbies® Deluxe Power Panel
Tower Hobbies Expanded Scale Voltmeter MKII
Channels power to all your electronics - and recharges
your glow starter, too!
Shirtpocket-sized, just 2-7/8" x 3-3/4" x 1-1/4"!
At just 6" x 3.75", Tower Hobbies' Deluxe Power Panel is an easy
fit for most field or pit boxes and a workhorse that handles power
needs for everything in them. The charger port works with either
NiCd or NiMH glow starter cells and recharges both at an easy,
effective 300-400mA rate. In addition, the Deluxe Power Panel also
provides: 12V power for starters and pumps: adjustable 1.5V
pulsed power to glow plugs: a Fill/Empty switch for use with fuel
pumps; and a meter for detecting engine problems and burned-out
plugs. Includes one set of alligator clips and two sets of color-coded
banana plugs. 1-year limited warranty.
Tower Hobbies' Expanded Scale Voltmeter MKII easily and
accurately measures the voltages of 4-, 8- and 5-cell packs
against very realistic 225-275mAh loads. It displays the results on
a meter which: 1) offers separate, labeled scales for each type;
2) shows green (safe) and red (unsafe) zones on each, and;
3) uses a mirrored area to ensuring the perfect needle viewing
angle. Charge leads required. 1-year warranty.
Tower Hobbies System 3000™ Servos
• Cutting-edge quality for precision and power.
• Featuring universal connectors for easy system matching.
System 3000 Servos offer exceptional strength and dependability for virtually every application. Vibration-resistant Surface Mount
Technology keeps them operating perfectly. They also feature impact-resistant, fuelproof cases - and universal connectors,
compatible with Futaba®, JR®, Hitec® and all "Z" connector-equipped Airtronics systems, as well as all Tower systems.
Extremely small and lightweight (0.34 oz.), the *TS-5* is a perfect servo for park and indoor flight applications. Though just 0.6
ounces, the *TS-10* delivers ample muscle for sailplanes and small aircraft. The *TS-53* is great for all general uses. For the
ultimate in smooth, precise response, go with the *TS-69* for general applications, and *TS-75* for 1/4 scale. Both include ball
bearings. All include complete mounting hardware and 1-year warranty.
TS-5 Hi Speed Nano Servo............TOWM4510
Torque: 16.7 oz-in
Speed: 0.11 sec @ 60°
Weight: 0.34 oz
Dimensions: 0.86 x 0.43 x 0.78 in
TS-10 Micro Servo..........................TOWM4505
Torque: 30 oz-in
Speed: 0.22 sec @ 60°
Weight: 0.6 oz
Dimensions: 0.50 x 1.06 x 1.12 in
TS-69 Standard BB Servo.............TOWM4545
Torque: 42 oz-in
Speed: 0.22 sec @ 60°
Weight: 1.5 oz
Dimensions: 0.77 x 1.59 x 1.41 in
TS-75 1/4 Scale 2BB, MG, Servo.......TOWM4565
Torque: 110 oz-in
Speed: 0.19 @ 60°
Weight: 3.6 oz
Dimensions: 1.1 x 2.3 x 2.0 in
TS-53 Standard Servo....................TOWM4525
Torque: 42 oz-in
Speed: 0.22 sec @ 60°
Weight: 1.5 oz
Dimensions: 0.77 x 1.59 x 1.4 in
Legend: 2BB = 2 ball bearings; MG = Metal Gear
MEM #1
CH1 – aileron
nor – rev
CH2 – elevator
nor – rev
CH3 – throttle
nor – rev
CH4 – rudder
nor – rev
CH5 – gear
nor – rev
CH6 - flaps
nor – rev
inh - on
inh - on
rate %:
flap + v-tail
MEM #2
CH1 – aileron
nor – rev
CH2 – elevator
nor – rev
CH3 – throttle
nor – rev
CH4 – rudder
nor – rev
CH5 – gear
nor – rev
CH6 - flaps
nor – rev
inh - on
inh - on
rate %:
flap + v-tail
MEM #3
CH1 – aileron
nor – rev
CH2 – elevator
nor – rev
CH3 – throttle
nor – rev
CH4 – rudder
nor – rev
CH5 – gear
nor – rev
CH6 - flaps
nor – rev
inh - on
inh - on
rate %:
flap + v-tail
MEM #4
CH1 – aileron
nor – rev
CH2 – elevator
nor – rev
CH3 – throttle
nor – rev
CH4 – rudder
nor – rev
CH5 – gear
nor – rev
CH6 - flaps
nor – rev
inh - on
inh - on
rate %:
flap + v-tail
MEM #5
CH1 – aileron
nor – rev
CH2 – elevator
nor – rev
CH3 – throttle
nor – rev
CH4 – rudder
nor – rev
CH5 – gear
nor – rev
CH6 - flaps
nor – rev
inh - on
inh - on
rate %:
flap + v-tail
MEM #6
CH1 – aileron
nor – rev
CH2 – elevator
nor – rev
CH3 – throttle
nor – rev
CH4 – rudder
nor – rev
CH5 – gear
nor – rev
CH6 - flaps
nor – rev
inh - on
inh - on
rate %:
flap + v-tail
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