Tactic TACTIC TTX650 User manual

2.4GHz 6-CHANNEL COMPUTER RADIO
INSTRUCTION MANUAL
Tactic's TTX650 computer transmitter uses the advanced 2.4GHz spread spectrum SLT "Secure Link Technology"
protocol for solid, interference-free control of R/C models. Ball-bearing gimbals, a wireless trainer system, 20
model memories, and advanced programming options are just a few of the benefits which can be used on models
of all sizes. Tactic 2.4GHz transmitters are compatible only with Tactic brand receivers and those utilizing the SLT
protocol.
For safe operation and best results, it’s strongly recommended to read this manual in its entirety
before use! Also read and understand the instructions included with the model. Damage resulting
from misuse or modification will void your warranty.
INDEX
SLT TECHNOLOGY, Tx-R, AND COMPATIBLE RECEIVERS Page xx
RECEIVER INSTALLATION xx
TTX650 POWER SYSTEM xx
InputPower xx
Charge Jack and Rechargeable Batteries xx
PowerLED xx
FLIGHTCONTROLS xx
GimbalSticks xx
Stick Tension and Throttle Ratchet xx
Case Separation and Assembly xx
Digital Stick Trims xx
Toggle Switches xx
Antenna xx
HOMESCREEN xx
MENUS xx
LCD AND PROGRAMMING CONTROLS, MENU NAVIGATION xx
SYSTEM SETUP xx
UserName xx
StickMode xx
Contrast xx
BeepVolume xx
BatteryAlarm xx
MODEL SETUP MENU – AIRPLANES xx
ModelSelect xx
Model Management xx
WingType xx
Channel Assignments xx
Warnings xx
Trainer xx
TrimSetting xx
SETTINGS MENU – AIRPLANES xx
Servo Set (reverse, sub-trim, travel limits) xx
1

Dual-Rates and Exponential xx
CH5andCH6Set xx
ThrottleCurve xx
ThrottleCut xx
Aileron Differential xx
Aileron Flap Adjustments xx
AileronMixer xx
ElevatorMixer xx
FlapMixer xx
AirBrakeSet xx
Programmable Mixer xx
RfOutput xx
Timer xx
MODEL SETUP MENU – HELICOPTERS xx
SwashType xx
SETTINGS MENU – HELICOPTERS xx
Servo Set, Dual-Rates, Exponential, RF Output, Timer xx
ThrottleCut xx
ThrottleHold xx
ThrottleCurve xx
PitchCurve xx
GyroMixing xx
SwashMixing xx
ThrottleMixing xx
Rudder Mixing xx
SwashRing xx
Programmable Mixer xx
BIND THE RX TO THE TX xx
FAILSAFE FUNCTION xx
WIRELESS TRAINER xx
RANGETEST xx
FIRMWAREUPGRADES xx
WARNING INDICATIONS xx
SYSTEM CHECK AND OPERATION xx
FLYINGTHEAIRCRAFT xx
IMPORTANT WARNINGS AND PRECAUTIONS xx
TTX650 SPECIFICATIONS xx
TROUBLESHOOTING xx
SAFETYGUIDE xx
ACCESSORIES xx
FCCSTATEMENT xx
WARRANTY INFORMATION xx
** large glamour picture with callouts
neck strap eyelet
power switch
antenna
LED power indicator
2

LCD
pushbuttons
carrying handle
each toggle switch
charge jack (left side, bottom)
firmware upgrade jack (left side, just above charge jack)
trim levers
SLT TECHNOLOGY, Tx-R, AND COMPATIBLE RECEIVERS
Tactic's custom SLT technology ensures that transmitters emit a strong, clear, frequency-hopping 2.4GHz signal,
and that your compatible receiver accepts no signal except yours. Binding Tactic brand receivers is as simple as
pushing a button, which creates a locked-in, interference free link. The TTX650 radio can store up to 20 models in
memory, making it perfect to control a full fleet of models with the super-affordable Tactic brand 2.4GHz receivers.
The TTX650 is also compatible with non-Tactic brand receivers which use the *SLT protocol, for the ultimate in
convenience and flexibility.
* Make sure optional receivers have the genuine SLT protocol before use with the TTX650.
The TTX650 is also compatible with all transmitter-ready aircraft bearing the "Tx-R" logo. Such aircraft include
receivers having the SLT protocol.
RECEIVER INSTALLATION
Always mount the optional receiver, servos, switch harness, battery, electronic speed control, etc. as explained in
the manual included with such equipment and/or the model. Keep the Rx and its antenna(s) as far away from the
engine/motor, servos, and ESC and other electronic items as much as possible. It may also be a good idea to
mount the Rx inside certain models using Velcro®, and wrap it in foam rubber to prevent damage from strong
vibrations or crash damage (except in extremely warm environments). It's best to have as few items surrounding
the receiver's antenna tips as possible inside the model, to allow for the most obstruction-free signal path to the
transmitter. Exposing the receiver's antenna tip outside the model is recommended if possible. For receivers with
two antennas, position the antennas at 90 degree angles with the tips resting at least 5 inches apart. If possible,
allow one antenna to point vertically above the receiver itself.
TTX650 POWER SYSTEM
INPUT POWER: Four 1.5V "AA" alkaline cells (included) or 1.2V "AA" NiCd or NiMH cells supply power to the
TTX650. Do not mix cell types, or old and new cells, etc. Slide open the battery door to find the four "AA" cell
battery holder. Insert all cells with the proper polarity as shown inside the battery holder. Carefully tuck the wires
and battery holder inside the battery compartment so not to damage them when closing the battery door.
Alternatively, an assembled 4.8V NiCd or NiMH "AA" flat pack can be installed. Remove the alkaline cell holder
from the battery compartment and carefully observe the polarity of the wires before disconnecting the plug from
the Tx. Install the NiCd or NiMH battery by first inserting its connector into the jack in the battery compartment.
Make sure to observe proper polarity.
Battery voltage is shown on the LCD's home screen for easy monitoring. A "LOW BATTERY" warning will show
when battery power drops to the voltage value shown in the BATTERY ALARM screen as described on page xx.
3

WARNING! Never operate an R/C model with weak Tx batteries! Reduced operational range
and/or possible loss of control of the aircraft could result. Replace weak alkaline batteries, or
re-charge NiCd or NiMH batteries, before attempting a flight!
A "Tx Batt." timer in the TIMER menu described on page xx can track the total amount of time the transmitter has
been operational.
See the ACCESSORIES section on page xx for optional batteries and chargers available at local hobby retailers.
CHARGE JACK AND CHARGING RECHARGEABLE BATTERIES: The charge jack
should only be used for recharging optional NiCd or NiMH batteries (charger not
included). Do not try to recharge alkaline batteries. Charge adapters for Futaba
brand transmitters are compatible, with the center pin being positive polarity. The
Tx power switch must be in the OFF position to recharge batteries. Do not charge batteries at greater than 1 amp.
Cycling of the Tx batteries can be accomplished through this jack. Misuse, improper charging, or over-charging of
rechargeable cells can result in damage to the cells that could include cell rupture, explosion, or fire!!
TTX650 CHARGE JACK
WARNING! Do not accidentally short circuit the terminals inside the charge jack, as this can cause
permanent damage to the radio's charge circuitry and battery and void the warranty.
POWER LED: The blue LED illuminates when the power switch is turned on and ample voltage is supplied by the
battery. This LED will flash if battery voltage drops to the voltage set in the BATTERY ALARM setting described on
page xx.
FLIGHT CONTROLS
Channels 1 - 4 are fully proportional. Channels 5 and 6 can be controlled by a non-proportional switch. However,
if a proportional channel (1-4) is mixed to channel 5 or 6 these channels can exhibit proportional control.
Aircraft control is accomplished through various electro-mechanical devices which are manipulated by the pilot,
such as the control sticks and toggle switches. In addition, the Tx can automatically manipulate the pilot's control
inputs electronically to alter the control signals before they are delivered to the receiver (e.g. mixing two channels,
applying differential reduction to a channel, etc.). Some electronic functions can be turned on/off by the pilot
during flight such as a timer. Other functions can only be altered while the model is on the ground, such as
changing travel limits or reversing for a particular channel.
GIMBAL STICKS: Ball-bearing construction allows both sticks to provide the ultimate in smooth, precise control.
Stick length can be adjusted for optimum feel and control. Each stick consists of a base and a tip. To adjust, hold
the base tightly, then loosen the tip by turning it counter-clockwise. Adjust the stick tip to the desired length.
Tighten the stick by holding the tip in place and turning the base counter-clockwise until it's tight against the tip.
STICK TENSION AND THROTTLE RACHET: Each control stick can be adjusted for softer or stiffer movement
tension. A ratchet is also included for the throttle stick which can be adjusted for feel depending on personal
preference. Adjustment of either feature requires removal of the rear of the Tx case as explained in the CASE
SEPARATION AND ASSEMBLY section below.
CASE SEPARATION AND ASSEMBLY
4

WARNING! Failure to follow these instructions for separating and re-assembling the Tx case can
result in permanent damage to the transmitter, and void the warranty. Contact Hobby Services if you
do not feel comfortable that you can safely and accurately perform these steps.
ALWAYS disconnect and remove the batteries from the battery compartment FIRST. Failure to do so can
result in permanent damage to the Tx.
Remove the six screws from the back of the Tx case. Carefully pull the case rear away from the case front and
note exactly how all wires are routed inside the case.
After adjustments are made as described in other sections of this manual, close the case by first carefully tucking
all cables back inside as when the case was opened. Align the case rear back onto the case front, making sure that
no wires are pinched between the case parts. Press the case halves together. Insert the screws back into their
positions and carefully tighten them until snug - making sure not to cross the threads or over-tighten the screws.
Re-connect the battery holder's connector to the socket inside the Tx. Insert the battery into the compartment,
and carefully tuck the wires inside the cavity so they do not become pinched when the door is closed. Close the
battery door.
Stick tension: Silver screws on the back of each gimbal are used to adjust the stick tension, as shown in this
picture. Turn the screw clockwise to make stick tension more firm. Turn the screw counter-clockwise to make
stick tension more light.
Throttle ratchet: A silver ratchet bar is mounted across the throttle gimbal. For airplane use, a more firm ratchet
feel might be desired for the throttle. In this case, turn the adjustment screw clockwise. For helicopter use, less of
a ratchet feel might be desired. Turn this adjustment screw counter-clockwise to achieve the desired feel.
DIGITAL STICK TRIMS: The trim controls for the four main channels are digital. Holding the trim lever will cause
the servo output to move repeatedly. Trim positions are visible on the LCD's home screen, and stored into that
respective memory. Changing the model memory will also cause trim settings to change accordingly.
For aircraft with glow engines, the precise position of the trim lever is helpful when determining the engine’s
preferred idle point. The throttle trim lever is not active when the main throttle stick is above 50% full throttle.
The amount of servo movement for each increment of a digital trim can be adjusted as desired, as explained in
the TRIM SETTING section on page xx.
TOGGLE SWITCHES: Each switch can be assigned to control one of a variety of functions as desired and
described throughout this manual. See page xx for the location of all switches, which are also marked on the Tx
by letter. The factory default switch assignments are as follows:
Switch Type Default Function – Airplane Default Function - Helicopters
A 2-position CH2 elevator dual-rate timer control
B 2-position CH5 landing gear gyro gain
C 3-position CH6 flaps (no setting)
D 2-position CH1 aileron dual-rate aileron, elevator, and rudder
dual-rates (all)
E 3-position CH4 rudder dual-rate normal / idle-up control
F 2-position, momentary trainer throttle cut
5

H 2-position throttle cut throttle hold
ANTENNA: The strongest signals are emitted at a 45 degree angle from the sides of the antenna. Rotate and
fold the antenna so that it's not pointing directly towards the model during flight. Do not grab the antenna
during operation as it may affect radio signal quality.
HOME SCREEN
The factory default screen and menus will be for airplanes. See the next section for navigating and changing
menus for model type and other functions.
MENUS
The TTX650 has three types of menus.
The SYSTEM SETUP menu allows for setting basic operational functions for the radio itself.
Selecting and managing the model memories, configuring the radio for the structure of the airplane or helicopter,
etc. is done in the MODEL SETUP menu. Most functions apply for both airplanes and helicopters. Select functions
are available for airplanes only or helicopters only.
Setting various radio functions to control the model is done in the SETTINGS menu. Some settings apply for both
airplanes and helicopters. Select settings are available for airplanes only or helicopters only.
LCD, PROGRAMMING CONTROLS, MENU NAVIGATION
The LCD contrast is adjustable for optimum viewing. Six pushbuttons navigate the menus and settings. Single
button pushes will result in a single incremental adjustment on-screen. Holding a button for a short time will
result in slow scrolling of adjustments; continued holding will result in fast adjustments.
Left side buttons:
SERVO Press any time to see the servo position screen shown below. Indicators for certain channels will
change depending on model type, wing type, etc. Moving any Tx control will graphically be shown on this screen.
When setting / adjusting mixes to determine if the mix is as desired, set the mix and then view this screen. Move
all controls to determine if the mix moves each respective channel as needed.
CLEAR Quickly resets certain values and settings back to factory defaults.
ESC Jumps back to the previous screen, and removes certain pop-up messages from the screen.
Right side buttons: adjustment of values on-screen.
↑+Moves the cursor up, and for increasing highlighted values/settings.
↓‐ Moves the cursor down, and for decreasing highlighted values/settings.
ENTER To select or de-select a setting, or enter a screen.
SYSTEM SETUP
Fundamental settings for the transmitter itself are located in this menu. With the power switch in the OFF position,
press and hold ENTER, turn the power switch ON and wait for the SYSTEM SETUP screen to show. Move the
cursor and press ENTER to select any setting. Press ↑+ and↓‐to change settings. Press ENTER to confirm the
setting.
USER NAME: Enter your name to identify the radio. The cursor will be under the first character to enter. Press
↑+ and↓‐to find the desired character, then ENTER to confirm. The cursor will automatically move to the next
6

cursor. Pressing ←or →can move the cursor freely. Repeat as necessary for up to 8 characters. Pressing CLEAR
will move the cursor back one space and erase the character in that space. Press ESC when finished.
STICK MODE: The TTX650 is factory set to
Mode 2 configuration, but can be changed to
Mode 1 (elevator on left, throttle on right). To
change modes in the programming, move the
cursor to the STICK MODE line, highlight and
press ENTER, then press ↑+ or↓‐.Press
ENTER to confirm.
In addition to programming changes, stick
mode changes require reversal of the throttle
ratchet and elevator arm/spring. Refer to the
CASE SEPARATION AND ASSEMBLY section on
page xx for opening and safely re-assembling the case after the mechanical adjustments are made. Failure to do
this properly can cause permanent damage to the radio and void the warranty.
rudder
Mode 1: elevator
Mode 2: throttle
aileron
Mode 1: throttle
Mode 2: elevator
LEFT STICK RIGHT STICK
NORMAL STICK CONFIGURATIONS
Throttle ratchet: The long metal bar resting across the throttle gimbal must be moved to the other gimbal.
Carefully remove the screws at each end of the bar. Re-locate the bar to the other gimbal and install across the
ratcheted surface of the gimbal as shown. Re-install both screws. Carefully install the screw at top until snug – do
not over-tighten! The screw at bottom should be tightened until the vertical movement of this stick has the
desired amount of resistance.
Elevator arm and spring: The black plastic arm and spring must be re-located from the elevator gimbal to the
opposite gimbal. Using a pair of needle nose pliers or hemostats, carefully grip the end of the spring which is
looped over the end of the black plastic arm and gently lift it off the arm. Then slide the spring towards the center
of the gimbal to remove it from the gimbal. Set the spring aside.
Raise the plastic arm to a vertical position. Slide the arm towards the center of the gimbal to remove it from its
mounting pin.
Rotate the arm 180 degrees to mount it to the opposite gimbal as shown. While in the vertical position, slide the
arm over the mounting pin on the opposite gimbal. Lay the arm down across the gimbal.
Gripping one loop on the end of the spring, carefully lower the opposite loop of the spring into the gimbal to
slide it over the appropriate mounting pin. With the spring holding onto the pin inside the gimbal, carefully
stretch the spring and hook the loop over the end of the plastic arm. Confirm the arm and spring are mounted
properly by moving this stick and ensuring all movement is smooth but with resistance from the spring.
Close the transmitter as explained in the CASE SEPARATION AND ASSEMBLY section.
CONTRAST: Adjust the LCD's contrast level for optimum viewing.
BEEP VOLUME: Adjust the loudness of the radio's beeper as desired. This volume setting affects all tones that
are emitted from the radio including trim adjustments, alarms, programming changes, etc.
7

BATTERY ALARM: An alarm will sound and the display will show "LOW BATTERY" when the Tx battery's voltage
drops to the level shown in this setting. Do NOT set this value too low, as the radio could lose power very rapidly
as the battery nears full discharge and cause a loss of control of the model. Land the model immediately once
this alarm has sounded!
Battery Alarm
Battery type Default Recommended Minimum
Nickel-Cadmium (NiCd) or
Nickel-Metal Hydride (NiMH) 4.40V 4.40V 4.00V
Alkaline 4.00V 4.00V 3.60V
Once all functions in this menu are set, press ESC to return to the home screen.
MODEL SETUP MENU – AIRPLANES
From the home screen, press and hold ENTER for 2 seconds to find the MODEL SETUP menu which is for setting of
fundamental operating parameters as shown here.
MODEL SELECT: Memories are available to store parameters for up to 20 different models. This screen is for
selecting the memory to be active. Move the cursor to find the desired memory to make active, and press ENTER.
The radio will automatically return to the home screen.
Changing the model memory is not possible if the Tx battery voltage is too low. See the INPUT POWER section
on page xx. It's a good idea to keep a record of all settings in each memory as a backup in case parameters in a
particular memory are accidentally changed, etc.
MODEL MANAGEMENT: Shows basic information regarding the model setup in the memory number shown at
top in brackets. Move the cursor up or down to select / change the function to adjust, and press ENTER to enter
the function screen.
Type: Press ↑+ to select the model type as airplane or helicopter. Press ENTER to confirm.
Name: Move the cursor to this line and press ENTER. The method for setting the model name is the same as
for entering the USER NAME as described on page xx. The maximum number of characters is six. Press ESC
when finished.
Copy: To copy all parameters from one model memory to another, place the cursor over "Copy" and press
ENTER. The "COPY FROM" page will show. Highlight the memory to copy FROM and press ENTER. Now the
"COPY TO" page will show.
Place the cursor over the memory number to copy TO, and press ENTER. The confirmation screen will show.
To NOT proceed with the copy function as shown on-screen, highlight "NO" and press ENTER to cancel and
return to the main MODEL MANAGEMENT screen.
Otherwise, press ↓- to highlight "YES" and press ENTER. All settings that previously existed in the receiving
memory will be permanently erased. The display will return to the main MODEL MANAGEMENT screen. Return
to the MODEL SELECT screen to confirm the copy function was successful by looking at the memory that was
copied "to".
8

Reset: To change the parameters of any single memory except model type and model name use this reset
function. Enter this screen, move the cursor over the memory to reset and press ENTER. Select "NO" to cancel
or "YES" to proceed with the reset, and press ENTER. The display will then return to the home screen.
Erase: Use the erase function to completely clear all settings (including model type and name) in any single
memory to factory default settings. The method for selecting, cancelling, and approving this function is the
same as for reset.
WING TYPE: This is for setting the type of tail and wing configuration for the model. Depending on the mixes
used and setup of the aircraft, it might be necessary to change the aileron, elevator, or rudder reversing settings
to achieve the proper throw directions for the model.
"Normal" is the factory default setting for the "TAIL" type. Move the cursor over "Normal", press ENTER then ↑+
or↓‐ to select from V-Tail, Delta (elevon), and 2 Elevator options. Press ENTER to confirm the selection. The
charts below can aid in determining the preferred tail and flap setting for the model.
Normal: One servo each is used for aileron(s), elevator(s), and rudder.
AIRPLANE NORMAL TAIL
1AIL 1AIL/1FLAP 2AIL 2AIL/1FLAP
CH1 AIL AIL AIL AIL
CH2 ELEV ELEV ELEV ELEV
CH3 THRO THRO THRO THRO
CH4 RUDD RUDD RUDD RUDD
CH5 AUX1 FLAP AUX1 FLAP
CH6 AUX2 AUX2 AIL2 AIL2
V-tail: Elevator and rudder channels are
mixed. Two servos are used in the tail –
one for each control surface, with
connections as shown in the graphic below.
V-tail mixing controls the airplane's "pitch"
and "yaw" axis at the same time. If the
elevator and rudder functions appear
reversed at the control surfaces, it may be
necessary to swap the channel 2 and
channel 4 servo plug positions in the Rx.
The travel limits for each servo can be
adjusted independently.
AIRPLANE V-TAIL
1AIL 1AIL/1FLAP 2AIL 2AIL/1FLAP
CH1 AIL AIL AIL AIL
CH2 V-TAIL1 V-TAIL1 V-TAIL1 V-TAIL1
CH3 THRO THRO THRO THRO
CH4 V-TAIL2 V-TAIL2 V-TAIL2 V-TAIL2
CH5 AUX1 FLAP AUX1 FLAP
CH6 AUX2 AUX2 AIL2 AIL2
Delta wing (elevon): Elevator and aileron channels are mixed, useful for aircraft such as flying wings and other
models not having a tail. Elevon mixing controls the airplane's "pitch" and "roll" axis at the same time. One servo
is used for each control surface. Travel limits for each servo can be adjusted separately. If the elevator and aileron
functions appear reversed at the control surfaces, it may be necessary to swap the channel 2 and channel 3 servo
9

plug positions at the Rx for the delta wing mix. If the delta wing option is selected, and the "FLAP" option below
is set to 2AI1FL, the elevator channel will mix 100% to the aileron channel.
AIRPLANE DELTA WING
2AIL 2AIL/1FLAP
CH1 ELEVON1 ELEVON1
CH2 ELEVON2 ELEVON2
CH3 THRO THRO
CH4 RUDD RUDD
CH5 AUX1 FLAP
CH6 AUX2 AUX1
AIRPLANE 2 ELEVATORS
1AIL 1AIL/1FLAP 2AIL
CH1 AIL AIL AIL
CH2 ELEV ELEV ELEV
CH3 THRO THRO THRO
CH4 RUDD RUDD RUDD
CH5 AUX1 FLAP AIL2
CH6 ELEV2 ELEV2 ELEV2
2-Elevators: Elevator channel 2 and channel 6 are mixed for
aircraft which have two separate servos moving separate
elevator surfaces. Both elevators move independently, and are
independently adjustable for travel limits, etc.
The "FLAP" setting allows for configuration of the ailerons and/or flaps of the airplane. Move the cursor over "1AI"
to select from the following options:
1AI: Use this "1 aileron" setting for normal wing types having one aileron on each wing, where one servo controls
the movements of both servos simultaneously.
1AI1FL: This "1 aileron + 1 flap" setting is for wings having one servo that controls the ailerons on both wings,
and another servo that controls the flaps on both wings (both servos moving in the same direction). Connect the
aileron servo to Rx channel 1, and the flap servo to channel 6.
2AI: This "2 ailerons" setting is for airplanes having one aileron servo for each wing. Connect one aileron servo to
Rx channel 1, and the other to channel 6. This setting allows each aileron servo to function independently of the
other.
2AI1FL: This "2 ailerons + 1 flap" setting is for airplanes having two separate aileron servos, requiring one servo
to control each aileron, and also one servo that will control flaps for both wings simultaneously.
To achieve a flaperon mix, use the 2AI1FL setting and the air brake mixer (see page xx) to get flap and aileron
control from the aileron stick. Set the amount of deflection for the aileron and flap servos individually. Select a
switch to control the flaps. One aileron servo should be connected to Rx channel 1, and aileron servo two
connected to Rx channel 6. Connect the flap servo to Rx channel 5.
CHANNEL ASSIGNMENTS: This function allows regular transmitter channels to be re-assigned to different
channels before being sent to the receiver. This can be useful for models having unusual configurations.
10

Some small electric flight models use only elevator, throttle, and rudder channels (not aileron). Here, it's often
preferred that the rudder be controlled with the opposite stick (right stick for Mode 2 configurations). Such
channel re-assignment can be done in this screen.
Determine which Tx channel on the left should be mapped to the desired output channel on the right. With the
cursor on the "OUTPUT" channel number on the right, move the cursor up or down to change the channel
number as shown on the left. Press ENTER then ↑+ or↓‐to find the output channel as desired. Press ENTER
when finished.
WARNINGS: Two warnings can show to alert of certain conditions in the radio, which can be inhibited if desired
in this screen. Select the warning to be activated or inhibited as desired and adjust. When set to active "ACT", the
warnings are as follows:
THRO POS: Throttle stick is over 50% full throttle. Move the stick below 50% full throttle to clear the warning.
THRO CUT: This alert rises when the throttle cut function is set, and the throttle cut switch is turned on. Turn the
throttle cut switch to off to clear the warning.
TRAINER: The process of binding transmitters for training purposes is explained on page xx. When in training
mode with the TTX650 being used by the teacher, this radio can allow the teacher to transfer control of all or only
certain channels to the student if desired.
Enter this screen. Press ↑+ or↓‐to select a channel to set. Press ENTER to toggle the setting. Repeat with other
channels as desired. Setting a channel to SLV means the student will have control of that channel when the
teacher pulls the trainer switch on the master radio. Those channels which are set to MST will be controlled by the
teacher at all times.
The teacher can select which switch will control the training function at the CTRL line at bottom. The control
positions for the trainer switch can also be selected as described on page xx (for the Control function). Press ESC
to confirm settings and return to the MODEL SETUP menu.
TRIM SETTING: The number of degrees a servo will rotate with each increment of digital trim deflection can be
adjusted, from very small up to large steps. Enter this screen, select the channel trim to adjust ranging from "1"
for the smallest steps to "20" for the largest steps.
SETTINGS MENU – AIRPLANES
This menu is for setting servo control functions for airplane use.
SERVO SET: Enter this function to adjust any channel's reversing, sub-trim, or travel limit setting. The "Reverse"
screen will show first. To move to the "Sub Trim" or "Travel" screen, place the cursor over "Reverse", press ENTER
and then ↑+ to find the desired screen.
Reverse: Sets the rotational direction for a channel's output relative to the movement of the control stick.
Move the cursor to the channel to adjust. Set to "NOR" normal or "REV" reverse. Adjust all reversing settings
before making any other settings or adjustments in the programming.
11

Sub-trim: Finely adjusts a channel's center position. Be aware that extreme adjustments of sub-trim could
possibly result in servo binding if the servo's output arm moves too far in the model. This is available for all
channels.
Travel limits: Sets the maximum travel limits for each channel. Limits can be set for each side of center. If two
channels are mixed, adjusting the travel limits of each individual channel may be necessary to adjust the travel
limits for the entire mix. Move the cursor to the channel to adjust. Deflect the control stick for that channel to
one side and notice the cursor on-screen will move accordingly. Set the percent for that direction of travel as
needed. Move the stick to the opposite direction and repeat. Repeat for all channels as needed.
DUAL-RATES, EXPONENTIAL: For setting dual-rates and/or exponential travel for the aileron, elevator, and
rudder channels. Dual-rates allows a channel's maximum travel limits to be switched between two limits.
Exponential changes the rate at which a servo rotates per degree of control stick deflection. The rate of servo
movement is non-linear in relation to the movement of the stick. The higher the exponential percentage, the
more the servo will rotate as the stick is moved away from center position.
To select the desired channel to adjust, press ENTER, then ↑+ or ↓- . Press ENTER when finished.
Assign a switch to change the dual-rate / exponential setting by moving the cursor to the CTRL line, and press
ENTER. Select the switch that will control this function as explained on page xx. Press ESC when finished.
Different dual rate and exponential settings can be set for each position of the switch. Highlight the dual-rate
percentage and move the assigned switch to the position that will allow for the furthest servo travel. Adjust this
percentage to the widest travel distance as needed for this channel. Note that the slope of the diagonal line in
the graph changes as the percent is adjusted. Deflect the control switch to the opposite position, and adjust the
percentage to the lowest travel distance needed. The diagonal line on-screen will now show the slope for the low
dual-rate setting. A low rate can allow for better control of the model while on the ground, at low altitudes, or
while performing certain maneuvers. A high rate can allow for optimum control of the aircraft in mid-flight.
To set an exponential value, move the cursor to the EXPO line and repeat the steps explained above to set a
different value for each position of the control switch. This function can be handy for optimum control of the
model - especially around center-stick position, and when performing stunts or aerobatic maneuvers.
Moving the control stick for the channel shown on-screen will change the position of the vertical line in the graph.
The point where the vertical line intersects the diagonal line is shown at the bottom-left on the screen. The "x"
(horizontal) coordinate is on the left, and "y" (vertical) coordinate is on the right.
Repeat the above steps for each the aileron, elevator, and rudder channels as desired.
CH5 AND CH6 SET: Enter this screen to set the functions of channels 5 and 6. At the INPUT line select CH5 or
CH6. Then follow the steps below.
Control: Choose which switch will control the selected channel. Switches are identified by letters A through H, as
printed on the transmitter next to each switch.
On-screen the switches will be identified as "SWA" for switch A, "SWH" for switch H, and so on. All are 2-position
switches except switches "E" and "C" which have 3-positions. Deflect the switch which will ultimately control this
function.
12

The display will show a graphic representing the switch, and the different control positions of the switch as shown
here (0, 1, and 2). The default position for "0" will always be in the down direction. The control positions of the
switch can be assigned to fit personal preference. To use the default settings, simply press ESC to confirm. To
change the control locations of the switch to be high "H", medium "M", or low "L" position, press ↑+ or↓‐ to
move the cursor to the position to be changed. Press ENTER to highlight the function at this position. Then
press ↑+ or↓‐ to change the control function. Repeat as necessary for all switch positions. Press ESC when
finished.
To remove the switch that has been set in the Control function, press ENTER to highlight the switch selection and
press CLEAR.
Other functions in this radio allow for assigning a switch to a specific function. Refer back to this section as
needed.
Offset: Move the cursor to this function. Press ENTER, then ↑+ or↓‐to find the percent to offset the center
position of the channel shown on this screen.
Travel: For adjusting the maximum travel limits for a selected channel. Deflect the switch to one position and
adjust the maximum travel limit for this switch position, and then repeat for the opposite switch position.
Highlight either and press CLEAR to change back to the default setting. Press ENTER when finished.
While the output channel is being operated normally, any movement of the input channel will be mixed to- and
also affect the movement of the output channel.
THROTTLE CURVE: The throttle's output is normally linear in relation to movement of the throttle stick. A non-
linear relation between the two – or curve - can allow for optimum power control in certain models or for specific
types of flying styles.
Make sure the model's full throttle position can be achieved when the throttle stick is at maximum deflection. The
throttle trim must be able to minimize throttle control completely when the throttle is at minimum.
Enter this function. Up to six points can be placed on the throttle curve, as designated next to "Point" on the
graph. Points L (low) and H (high) are each limited to a fixed range on the curve. Points 1, 2, 3, and 4 can be set if
desired with respect to the position of the throttle stick.
As the throttle stick is advanced note the point where the vertical line (throttle position) intersects the diagonal
line (curve). The coordinates of this point are shown at the bottom. The "x" (horizontal) coordinate is on the left,
and the "y" (vertical) coordinate on the right.
To set points on the curve, start at the minimum throttle position which will be noted as point "L". A point for "L"
is not marked on the graph, but is the left-most end of the curve line. The vertical position of this point can be
adjusted by moving the cursor to the RATE percentage, press ENTER then ↑+ or ↓- as desired. Press ENTER
when finished.
To set point 1 on the graph, advance the throttle stick until *shows next to "Point". Find the desired throttle stick
position and press ENTER. A +symbol will be placed on the curve to mark this point.
13

Pressing ↑+ or ↓- will adjust the vertical position of curve at this exact point. Adjust as desired.
Repeat these steps to set points 2, 3, and 4 on the graph as desired. A point for "H" is not marked on the graph,
but is the right-most end of the curve line. The vertical position of this point can be adjusted by moving the
cursor to the RATE percentage, press ENTER then ↑+ or ↓- buttons. Press ENTER when finished.
To clear any point on the graph, place the cursor on the RATE percent, move the throttle stick until the graph's
vertical line intersects the point, press ENTER and then CLEAR.
A switch can be assigned to toggle between the linear curve (for starting the engine, etc.) and the user-defined
curve (for forward flight, stunts, etc.). Select the switch on the CTRL line.
The exponential control of the user-defined throttle curve (but not the linear curve) can be active or inhibited.
This will soften or make the transition of the throttle curve more smooth. Move the cursor next to the EXPO line
and toggle between "ACT" and "INH". Press ENTER when finished.
THROTTLE CUT: Allows the throttle channel's output to be quickly moved to a user-defined position by flipping
a switch. This is to reduce engine / motor power for safety reasons. Default setting is -100% (idle).
When setting up the model mechanically, make sure the carburetor is at full-open when the throttle stick is at full
position. Use the trim to adjust the engine idle position. Move the throttle stick to idle position and turn the
assigned throttle hold switch on and off repeatedly while changing the offset value until the servo stops moving.
Select a switch to control the throttle cut function on the CTRL line. Press ESC.
Move the cursor next to TRIG but do not press ENTER. Move the throttle stick to the desired position that will
trigger the throttle channel to move to the cutoff position. The graph will move accordingly as will the percent
shown on the THRO line at bottom. Press ENTER. The arrow on the left will now move and mark this selected
trigger position.
Move the cursor to the CUT percentage, press ENTER and adjust this cutoff value by pressing ↑+ and ↓- to the
desired position for the throttle channel's output to move to when the throttle cut function is activated. This
position will be marked by the arrow on the right. Press ENTER to confirm this mark.
When the throttle cut switch is in the ON position and the throttle stick is positioned above the trigger mark,
reducing the throttle stick to the trigger mark will automatically drop the throttle channel to the throttle cutoff
mark. The throttle channel will remain in this position. To regain full control of the throttle channel, move the
control switch to the OFF position.
NOTE: The method for setting the various following mixer screens is the same for each mixer. Refer to the
instructions for the DIFFERENTIAL mixer screen for adjustment of all other mixer screens. Any difference
in any one mixer screen will be noted accordingly. Normal wing mixing is the factory default setting.
Depending on the mixes used and setup of the aircraft, it might be necessary to change the setting of the aileron,
elevator, or rudder reversing settings to achieve the proper throw directions for the model.
AILERON DIFFERENTIAL: Only available when 2AI and 2AI1FL wing types are selected, to help offset unwanted
yaw which can occur when ailerons are moved. One servo must be connected to each aileron for this mix. Instead
of equal linear movement between both ailerons, a differential percentage can be assigned so that the deflection
14

of one aileron is at a lower or higher rate than the opposite aileron. Certain applications may require a reduction
in the aileron differential rate when an airbrake is applied. This feature is useful for glider and/or sailplane
applications which use other settings to achieve "butterfly" or "crow" functionality.
Enter the DIFFERENTIAL function. There are two ways to control the mix. One is to make the mix be active at all
times. Another is to control the mix with an otherwise unused switch.
To make AILE DIFFERENTIAL active at all times do NOT assign a switch at the CTRL line. Press ENTER to highlight
the differential rate percent and press ↑+ or ↓- to find the desired value. Press ENTER when finished.
To control the mix with a switch, move the cursor to the CTRL line and press ENTER. Deflect the switch that will
control the mix. The screen will show the functional assignments for each position of the switch as described
previously. Press ESC to confirm the switch selection. The display will now show the different switch positions
(SP.0, SP.1, SP.2). A different rate can be set for each switch position.
Deflect the switch to one position, and note the cursor on-screen will move automatically to the rate for that
position. Adjust that rate as desired. Deflect the switch to the remaining positions and repeat. To remove a
switch which might have been assigned previously, highlight the switch selection in the CTRL line and press CLEAR.
Press ESC once all mixing values are set to return to the FUNCTION menu screen.
AILERON FLAP ADJUST: This
function is for setting the maximum
deflection angle of the aileron
and/or flap servos for takeoff and
landing purposes, which can be
controlled by a switch. This is only
available for 2AI and 2AIL1FL wing types. Ailerons-only can be set if the selected wing type is 2 ailerons (2AI).
Aileron and flap selections will show if the selected wing type is 2 ailerons + 1 flap.
AIL FLAP ADJUST
Tail type Mixing 1 Ail 1 Ail, 1 Flap 2 Ail 2 Ail, 1 Flap
Ail X X
Normal Flap X
Ail
Delta Flap X
Enter the AIL FLAP ADJUST function. Determine set the percentage(s) as needed.
AILERON MIXER: The aileron
channel can be mixed to the rudder
channel, which can be useful with
certain wing/airplane types.
AILERON > RUDDER
Tail type Mixing 1 Ail 1 Ail, 1 Flap 2 Ail 2 Ail, 1 Flap
Normal Ail > Rudd X X X X
Delta Ail > Rudd X X
To make this AILE ÆRUDD mix active at all times do NOT assign a switch at the CTRL line. Adjust the mixture
percentage and press ENTER.
On/off control of this mix can be assigned to a switch. Set the mix rates as desired for each switch position. Press
ESC when finished.
ELEVATOR MIXER: Not available
for the 1AI wing type selection. The
elevator channel can be mixed to the
ailerons or flaps depending on the
wing type.
ELEVATOR MIXER
Tail type Mixing 1 Ail 1 Ail, 1 Flap 2 Ail 2 Ail, 1 Flap
Elev > Ail X X
Normal Elev > Flap X X
Elev > Ail X
Delta Elev > Flap X
15

The method for making adjustments in this screen is the same as described above. In the WING TYPE menu, if the
FLAP selection is set to 2AI1FL and the TAIL selection is set to Delta, the elevator-to-aileron mixture will
automatically be fixed to 100%.
If the 1AI1FL wing type is selected the elevator can be mixed to the flaps. The mix can be active at all times, or
turned on/off with a selected switch.
If the 2AI wing type is selected, the elevator can be mixed to ailerons. Set the mix as needed. A control switch for
the mix can be selected if desired, or the mix can always be active by selecting a percentage but not selecting a
switch.
If the 2AI1FL wing type is selected the elevator can be mixed to the ailerons and/or flaps. The mix can always be
active by not selecting a control switch. Otherwise, select a control switch as explained earlier.
FLAP MIXER: Not available for 1AI or
2AI wing types. Different setup
options are available depending on
the selected wing type, where the
flaps can be mixed to the aileron,
elevator, or back to the flaps.
FLAP MIXER
Tail type Mixing 1 Ail 1 Ail, 1 Flap 2 Ail 2 Ail, 1 Flap
Flap > Ail X
Flap > Ele X X
Normal
Flap > Flap X
Flap > Ail
Flap > Ele X
Delta
Flap > Flap X
1AI1FL: Highlight the FLAP ÆELEV mix percent and adjust as desired. Press ENTER when finished. Assigning a
switch can allow on/off control of the mix. Set a mix percentage for each position of the switch (SP.0, SP.1, SP.2).
2AI1FL: If this wing type was set, the flap channel can be mixed with the aileron or elevator. Set the mix percent
for each channel to be mixed, for all switch positions that control the mix. Do NOT assign a switch at the CTRL
line to make the mix active at all times. Press ENTER when done.
AIR BRAKE SET: This function is available at all
times when the model type is set to airplane.
When mixing brake to elevator the model's
elevator will deflect when the air brake is applied.
When mixing brake to flaps, the flaps will deflect downward when air brake is applied. When mixing brake to
aileron, the ailerons will deflect together when air brake is applied.
AIR BRAKE SET
1 Ail 1 Ail, 1 Flap 2 Ail 2 Ail, 1 Flap
Elev X X X X
Ail X X
Flap X X
When the 1AI wing type is selected the brake can be mixed to the elevator channel. Adjust the mix percentage as
needed. Select a switch to turn the mix on/off.
When the 1AI1FL wing type is selected the brake can be mixed to elevator and/or flaps. Adjust each mix
percentage as needed. Select a switch to turn the mix on/off.
When the 2AI wing type is selected the brake can be mixed to elevator and/or aileron. Adjust each mix
percentage as needed. Select a switch to turn the mix on/off.
16

When the 2AIL1FL wing type is selected the brake can be mixed with each the elevator, aileron, or flaps. Adjust
each mix percentage as needed. Select a switch to turn the mix on/off..
PROGRAMMABLE MIXER: Up to four programmable mixes can be set, with one channel being mixed to any one
or more channels. Control characteristics from the "input" channel will be passed to the "output" channel(s), such
as travel limits, exponential, etc. The output channel will still be able to function independently as if it were not
mixed with another channel, but once an adjustment is made to the input channel a resulting change will be seen
on the output channel as well. The mix level can be adjusted by percent. A switch can be assigned to turn this
mix on/off.
Enter the mixer screen. Move the cursor to select which mix to set and press ENTER.
The top line will show the mix number, with the cursor over the input channel, and the output channel to the right.
Press ENTER and ↑+ or ↓- to highlight and set the input channel.
The rate of the input channel to mix with the output channel can be adjusted for each the right and left side of the
input channel's center position. With the cursor next to RATE L, set the desired mix percentage. Repeat for RATE
R. Note the curve on the display's graph will adjust according to the percentages entered.
The amount of the input channel to be mixed can be offset by setting a percentage next to "OFFSET".
Assign a switch to control the mix in the CTRL line as explained earlier. Repeat the above procedures for each of
the four mixes that are to be configured.
RF OUTPUT: The Rf output signal can be turned on or off. If changing any programming parameters in the radio
it's recommended to turn the Rf off so not to unnecessarily clutter the flying space with radio signals. Leave the
Rf output signal ON anytime the model is being controlled.
Enter this screen to perform a range check on the radio system, as fully explained on page xx.
TIMER: A timer is shown on the home screen, which can be configured in the TIMER menu. The timer can be set
to count up or down, and can be controlled by a user assigned switch. In addition, the timer can be controlled by
the throttle stick if desired.
To count UP as a stopwatch, leave the timer set to 00:00. To configure the timer to count DOWN, set a time other
than 00:00 with a maximum possible start time of 99:59. When used as a countdown timer, a set of tones will
sound at 00:10 and every second thereafter to warn that the timer is nearing the end. After reaching 00:00, the
timer will automatically begin counting up to help track how much longer the model was operational after the
timer ended.
A switch can be selected on the right side of the screen to turn the timer on / off. Place the box on-screen over
this setting and deflect the switch that will control the timer. In operation, the timer will be stopped when the
switch is in one position. Moving the switch to the opposite position will cause the timer to count. To reset the
timer, move the switch to the stop position and press the CLEAR button.
The timer can also be started and stopped by the throttle stick. Move the throttle stick to the minimum throttle
position. Place the box on-screen over this setting and press ENTER. When "Chose the control switch" displays,
move the throttle stick up from minimum throttle.
17

The "START/STOP" screen should show. Moving the stick up or down will show changes to the "THROTTLE"
position value. The "START/STOP" value shows the trip point where starting and stopping the timer will occur.
Move the stick to the position where the timer's trip point and press ENTER. The position value for START/STOP
should now match that for THROTTLE.
Press ESC to return the timer setting screen. The throttle stick's START/STOP position for the timer should show
below the timer settings.
For example, if a throttle stick START/STOP value of +45% is selected, anytime the throttle stick is below this value
the timer will be stopped. Anytime the throttle stick is above this value the timer will count. To reset the counter,
move the throttle stick below this value and press the CLEAR button.
The "Tx Batt." timer at the bottom of the TIMER setting screen accumulates the total amount of time the radio has
been operational. This time can only be reset by moving the cursor over "Tx Batt" and pressing the CLEAR button.
MODEL SETUP MENU – HELICOPTERS
This menu is for setting servo control functions for when helicopter is the selected model type. Use of all
functions in this menu are the same as described on pages xx - xx except that a SWASH TYPE function screen is
included for helicopters instead of a WING TYPE function.
All channels for helicopters are assigned as shown in the chart.
HELICOPTERS
CH1 AIL
CH2 ELEV
CH3 THRO
CH4 RUDD
CH5 GYRO
CH6 PITCH
SWASH TYPE: Enter this screen to select the type of swash plate in the helicopter.
Setting this properly allows for proper mixing of all controls for the main rotor. Four
options are available, with some offering cyclic and collective pitch mixes (CCPM) for
optimum simplicity and performance. It may be necessary to reverse the direction of a
control when using a CCPM mix to achieve the proper functionality.
1 Servo: Tilting of the swash plate is accomplished with one servo for control of the elevator axis and one servo
for the aileron axis. Another servo directly controls collective pitch. Selecting this swash type means that no
swash plate mixers are required or used.
2Sv(180): For CCPM with two servos (aileron and elevator) connected to the swash plate 180 degrees apart.
Control of the pitch-axis happens as a result of a mechanical de-coupling rocker. Through this pre-set mix,
throttle (pitch) stick movement causes both servos to move the plate up and down. Aileron stick movement
causes both servos to tilt the plate side-to-side.
3Sv(120): For CCPM with three servos connected to the symmetrical swash plate at 120º angles from each other.
One pitch servo, one elevation servo, and one aileron servo are connected to the swash plate.
3Sv(140): "3-servo (140°)" for CCPM with three servos connected to the swash plate. The connections are similar
to the 3Sv(120) but with slightly different geometry (two servos are connected at 140º angles forward from the
rear of the swash plate).
SETTINGS MENU – HELICOPTERS
Functions for helicopters support models with various fixed mixes, programmable mix options, and swash types.
18

Setting of the SERVO SET, DUAL-RATES, EXPONENTIAL, RF OUTPUT, and TIMER functions is the same as
described for airplanes on pages xx - xx. However, if using a helicopter which has CCPM mixing, read the SWASH
TYPE section on the previous page before adjusting the reversing and travel limits settings.
THROTTLE CUT: Allows the throttle channel's output to be quickly moved to a user-defined position by flipping
a switch. This is to reduce engine / motor power for safety reasons and/or auto-rotations. Default setting is -
100% (idle).
When setting up the model mechanically, make sure the carburetor is at full-open when the throttle stick is at full
position. Use the trim to adjust the engine idle position. Move the throttle stick to idle position and turn the
assigned throttle hold switch on and off repeatedly while changing the offset value until the servo stops moving.
Select a switch to control the throttle cut function on the CTRL line. Press ESC.
Move the cursor next to TRIG but do not press ENTER. Move the throttle stick to the desired position that will
trigger the throttle channel to move to the cutoff position. The graph will move accordingly as will the percent
shown on the THRO line at bottom. Press ENTER. The arrow on the left will now move and mark this selected
trigger position.
Move the cursor to the CUT percentage, press ENTER and adjust this cutoff value by pressing ↑+ and ↓- to the
desired position for the throttle channel's output to move to when the throttle cut function is activated. This
position will be marked by the arrow on the right. Press ENTER to confirm this mark.
When the throttle cut switch is in the ON position and the throttle stick is positioned above the trigger mark,
reducing the throttle stick to the trigger mark will automatically drop the throttle channel to the throttle cutoff
mark. The throttle channel will remain in this position. To regain full control of the throttle channel, move the
control switch to the OFF position.
THROTTLE HOLD: Throttle hold allows full use of collective pitch while setting the throttle at a user pre-
determined position. this function is often used for autorotation. The pilot can then release the hold and regain
full control of the throttle as needed.
The "Control" line is for setting the ability to turn this function ON/OFF with a switch. Selecting "INH" inhibits this
function from operating.
To select a switch to turn throttle hold on or off during flight, set the Control field to ON. With the cursor next to
CTRL, deflect the switch that will control throttle hold. In one position the control will be ON. Moving the switch
to the opposition will turn the control OFF.
Move the cursor next to "Position" and set a percent of full throttle that the throttle channel will deflect to
automatically when the control switch is moved to the ON position.
THROTTLE CURVE: The throttle's output is normally linear in relation to movement of the throttle stick. A non-
linear relation between the movement of the throttle stick and the throttle in the model can allow for optimum
control of power to the model (which is also linked to the control of the pitch of the main rotor blades). These
non-linear control curves can be customized for the particular model.
19

The idle-up function is used to optimize the throttle position for all flight envelopes including aerobatic flight. By
default the TTX650 assigns switch E as the idle-up control switch. This switch incorporates one "normal" and two
"up" functions within the three positions of the switch.
Position 1 = normal: Used for startup, take-off, landing, and typical flight profiles.
Position 2 = idle-up 1: Used for aerobatic flight
Position 3 = idle-up 2: Typically used as a secondary setup for aerobatic flight.
Make sure all mechanical linkages are connected exactly as specified in the helicopter's instruction manual. Make
sure the model's full throttle position can be achieved when the throttle stick is at maximum deflection. The
throttle trim must be able to minimize throttle control completely when the throttle limiter is at idle position.
ENTER this function. Up to six points can be placed on the throttle curve, as designated next to "Point" on the
graph. Points L (low) and H (high) are each limited to a fixed range on the curve. Points 1, 2, 3, and 4 can be set if
desired with respect to the position of the throttle stick.
As the throttle stick is advanced note the point where the vertical line (throttle position) intersects the diagonal
line (curve). The coordinates of this point are shown at the bottom. The "x" (horizontal) coordinate is on the left,
and the "y" (vertical) coordinate on the right.
To set points on the curve, start at the minimum throttle position which will be noted as point "L". A point for "L"
is not marked on the graph, but is the left-most end of the curve line. The vertical position of this point can be
adjusted by moving the cursor to the RATE percentage, pressing ENTER and then ↑+ or ↓- as desired. Press
ENTER when finished.
To set point 1 on the graph, advance the throttle stick until *shows next to "Point". Find the desired throttle stick
position and press ENTER. A +symbol will be placed on the curve to mark this point.
Pressing ↑+ or ↓- will adjust the vertical position of curve at this exact point. Adjust as desired.
Repeat these steps to set points 2, 3, and 4 on the graph as desired. A point for "H" is not marked on the graph,
but is the right-most end of the curve line. The vertical position of this point can be adjusted by moving the
cursor to the RATE percentage, pressing ENTER and then ↑+ or ↓- buttons. Press ENTER when finished.
To clear any point on the graph, place the cursor on the RATE percent, move the throttle stick until the graph's
vertical line intersects the point, press ENTER and then CLEAR.
A switch can be assigned to toggle between the linear curve (for starting the engine, etc.) and the user-defined
curve (for forward flight, stunts, etc.). Select the switch on the CTRL line. The switch set for flight phase control
can also control the throttle curve.
The exponential control of the user-defined throttle curve (but not the linear curve) can be active or inhibited.
This will soften or make the transition of the throttle curve smoother. Move the cursor next to the EXPO line and
toggle between "ACT" and "INH". Press ENTER when finished.
PITCH CURVE: The method for setting the pitch curve is the same as for the throttle curve as explained above, by
moving the throttle stick and using the same controls.
20