TTX650 TM 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. Ballbearing 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.
TABLE OF CONTENTS SLT TECHNOLOGY, Tx-R, AND COMPATIBLE RECEIVERS . . . . . . . . . . . . . . . . . . .5 RECEIVER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 TTX650 POWER SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Charge Jack and Rechargeable Batteries . . . . . . . . . . . .
Aileron Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Aileron Mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Rudder Mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Flap Mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Air Brake Set . . . . . . . . . .
Carrying Handle Switch B Switch F Antenna Switch H Switch C Switch E Switch D Switch A LED Power Indicator Pushbuttons Firmware Upgrade Jack Charge Jack Firmware Upgrade Jack Charge Jack 4 Neck Strap Eyelet Trim Levers Power Switch LCD
SLT TECHNOLOGY, Tx-R, AND COMPATIBLE RECEIVERS Tactic’s custom SLT technology ensures that transmitters emit a strong, clear, frequencyhopping 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.
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. 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 12.
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 should 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.
● Stick Tension: Silver screws on the back of each gimbal are used to adjust the stick tension, as shown at left. 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.
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. 1 01 >NAME 3 2 4 5 1. 2. 3. 4. Memory Number Model Name Battery Voltage Model Type 5. Timer 6. Trim Indicators 7. Signal Status 6 7 5.3V O OO RF-ON 6 MENUS The TTX650 has three types of menus. The SYSTEM SETUP menu allows for setting basic operational functions for the radio itself.
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.
SYSTEM SETUP SYSTEM SETUP Fundamental settings for the transmitter 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 or to change settings. Press ENTER to confirm the setting. USER NAME USER: USER NAME : STICK MODE: CONTRAST : BEEP VOL. : BATT.ALARM: TACTIC MODE2 0 0 4.8v USER NAME Enter your name to identify the radio.
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.
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 MODEL SETUP MODEL SELECT MODEL MANAGEMENT WING TYPE CHANNEL ASSIGNMENTS WARNINGS Memories are available to store parameters for up to 20 different models. This screen is for selecting the model to be active. Move the cursor to find the desired model to make active, and press ENTER.
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. COPY FROM 01: 02: 03: 04: 05: 06: GeeBee Axe100 Extra Cirrus Novus Yak-54 COPY TO 01: 02: 03: 04: 05: 06: GeeBee Axe100 Extra Cirrus Novus Yak-54 Place the cursor over the memory number to copy TO, and press ENTER. The confirmation screen will show.
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. FLAP TAIL 1AI Normal FLAP SETTINGS The “FLAP” setting allows for configuration of the ailerons and/or flaps of the airplane.
Airplane - V-tail CH1 CH2 CH3 CH4 CH5 CH6 1AIL 1AIL/ 1FLAP 2AIL 2AIL/ 1FLAP AIL V-TAIL1 THRO V-TAIL2 AUX1 AUX2 AIL V-TAIL1 THRO V-TAIL2 FLAP AUX2 AIL V-TAIL1 THRO V-TAIL2 AUX1 AIL2 AIL V-TAIL1 THRO V-TAIL2 FLAP AIL2 ch2 ch4 Left Rudder ch2 ch4 Right Rudder ch2 ch4 Up Elevator 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 above.
CHANNEL ASSIGNMENTS This function allows transmitter channels to be re-assigned to different channels before being sent to the receiver. This can be useful for models having unusual configurations. 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.
TRAINER TRAINER SLV MST 1 2 CTRL:SF 3 4 5 6 The process of binding transmitters for training purposes is explained on page 37. 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.
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.
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 the aileron, elevator, and rudder channels as desired.
Travel: To adjust the 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 Point 1 RATE: +52% CTRL:----EXPO: INH +15%> +52% Pressing or will adjust the vertical position of curve at this exact point. Adjust as desired. THROTTLE CURVE Point 4 RATE: +48% CTRL:SD(0) EXPO: INH +81%> +48% 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.
The throttle cut function will only work when the throttle stick position is below the trig point. To set this point, 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. THROTTLE CUT CTRL:SB TRIG : +67% CUT.
Normal Switch Control AILE DIFFERENTIAL Aile NORM: 0% AILE DIFFERENTIAL Aile SP.0: 0% SP.1: 0% SP.2: 0% CTRL:SC(2) CTRL:_____ Normal: 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 to find the desired value. Press ENTER when finished. or Switch Control: 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.
RUDDER MIXING Mixing the rudder channel to the aileron and/or elevator channels can be very useful for trimming an airplane to be neutral when using the rudder. Normal Switch Control RUDD->AILE MIXING Aile Elev NORM: 0% 0% RUDD->AILE MIXING Aile Elev SP.0: 0% 0% SP.1: 0% 0% SP.2: 0% 0% CTRL:SE(0) CTRL:----- RUDD->ELEV MIXING Aile Elev SP.0: 0% 0% SP.1: 0% 0% SP.2: 0% 0% CTRL:SE(1) Select the rudder channel to mix to the aileron or elevator channels as needed.
Normal Switch Control FLAP->ELEV MIXING Elev Flap NORM: 0% 0% FLAP->ELEV MIXING Elev Flap SP.0: 0% 0% SP.1: 0% 0% SP.2: 0% 0% CTRL:SC(2) CTRL:----- 1AI1FL: Highlight the FLAP ELEV 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).
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. AIR BRAKE SET ELEV: 0% AILE: 0% CTRL:SE AIR BRAKE SET ELEV: 0% AILE: 0% FLAP: 0% CTRL:SE When the 2AIL1FL wing type is selected the brake can be mixed with the elevator, aileron, or flaps. Adjust each mix percentage as needed. Select a switch to turn the mix on/off.
RF OUTPUT RF OUTPUT RF ON/OFF: ON 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 to conserve radio power. 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 39. RANGE TEST:99sec TIMER 5.
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 desired position for 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.
SWASH TYPE 1 Servo SWASH TYPE 2Sv(180) 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. This is typically used for flybarless systems. 2Sv(180): For CCPM with servos (aileron and pitch) connected to the swash plate (180 degrees apart).
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. 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.
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.
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.
GYRO MIXER This function is for setting and adjusting the sensitivity of an optional tail gyro. Enter this screen. Normal Switch Control GYRO MIXING NORM: 0% GYRO MIXING SP.0: 0% SP.1: 0% SP.2: 0% CTRL:----- CTRL:SE(2) To make the gyro mixing active at all times do NOT assign a switch at the CTRL line. Press ENTER to highlight the normal mixing rate, 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.
THROTTLE MIXER This mix is used for non-heading hold gyros or when a heading hold gyro is in normal mode. The helicopter’s throttle channel can be mixed to the tail (rudder) channel. This mix can remain active at all times, or be controlled by selecting a switch on the CTRL line. Move the cursor to select the rate to adjust, press ENTER and then or to adjust the value. Normal THRO->RUDD MIXING Rudd SP.0: 0% CTRL:----- Switch Control THRO->RUDD MIXING Rudd SP.0: 0% SP.1: 0% SP.
SWASH RING SWASH RING RATE: 150% RATE: 88% ELEV: AILE: ELEV: AILE: 0% 0% 0% 0% Once inside this function, press ENTER to highlight the “Rate” value. Press or to find the desired maximum rate. The circle graphic represents the maximum movement rate. Moving the aileron and/or elevator stick to their limits will cause the actual position of the these controls to show at the bottom of the screen.
FAILSAFE FUNCTION The failsafe function is not controlled by the TTX650 transmitter itself, but rather by the Tactic receiver. Tactic’s stand-alone 2.4GHz receivers have a failsafe feature which engages in the event that the signal from the Tx somehow becomes interrupted. In such a case, channels 1, 2, 4, 5, and 6 (all but CH3 throttle) will hold their last received position. Throttle channel 3 can move to a pre-set position. The factory default failsafe position for channel 3 is to move to 0% throttle.
3. Turn the teacher’s Tx off. 4. Pull the TTX650’s selected trainer switch and hold it in this position while turning the power switch on. The “searching” message should show on-screen. 02>Axe100F 5.0V 02>Axe100F 4.9V O OO SEARCHING O OO 5. Move the student’s transmitter to within 3 feet of the teacher’s transmitter and turn on the TTX404/600 power switch. 6. The TTX650’s “searching” screen should disappear. The teacher can release the trainer switch.
Teacher and student’s radio: TTX650 1. Link the teacher’s radio to the Rx. 2. In the teacher’s TRAINER screen described on page 18 select which channels NOT to transfer to the student while training, and select a switch to control the training function. Switch F is the recommended switch for training purposes. Then turn the teacher’s Tx off. 3. Move the student’s transmitter to within 3 feet of the teacher’s transmitter. 4. Pull the teacher’s selected trainer switch and turn the power switch on.
FIRMWARE UPDATES A 3-pin socket above the charge jack on the left side of the radio is used for updating the TTX650’s operating firmware. An optional Tactic TTX650 USB Firmware Interface (part number TACJ2651) is required. The software and suitable driver required for the download are free and found at http://tacticrc.com/tacj2650.html. IMPORTANT: Make sure the Tx battery shows good voltage prior to attempting a download.
throttle stick which would create a safety hazard. Make sure all devices are properly mounted inside the model, and all wiring connections are solid to prevent them from easily becoming dislodged during normal flight. It’s best to check the system with the propeller removed from the aircraft. 1. Once all connections are made, check the general operation of the radio and all other components before attempting a flight. 2. Move the Tx throttle stick to the minimum (idle) position. 3.
3. Move the Tx throttle stick to the minimum position, and then turn on the Tx power switch. Turn on the power switch in the model or connect the flight battery. 4. During the first flight, it might be necessary to re-trim the main channels to allow the model to sustain smooth, even flight. If further adjustments are required on the ground, make sure to turn off the engine or ESC/motor beforehand. 5. When the flight is completed, remove power from the system as described before.
TTX650 SPECIFICATIONS Model types: Channels: Frequencies: Protocol: Modulation: Input power: Current consumption: Low voltage alarm: Memories: Stick modes: Trims: Switch assignments: Display: Channel controls: Timers: Trainer system: airplane and helicopter 6 2.403 – 2.480GHz Tactic SLT FHSS spread spectrum 3.40 - 7.00V DC, four 1.5V alkaline or 1.2V NiCd/NiMH “AA” single cells. Jack included for connecting optional 4.8V NiCd or NiMH pack approx. 100-120mA 3.20 - 5.
FAILSAFE NOT WORKING CORRECTLY: Receiver is not properly linked to the transmitter – bind the Rx to the Tx and re-try. Check the channels which are programmed for transferring from Tx to Rx in the transmitter’s programming. Contact Hobby Services for further details. WIRELESS TRAINING FUNCTION NOT BINDING: Check to see that another Tactic 2.4GHz system is not on in your area. The teacher’s and student’s transmitters were not powered in the proper sequence or are positioned too far from each other.
FCC STATEMENT This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions. (1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may cause undesired operation. FCC Rf Radiated Exposure Statement: The equipment complies with FCC Rf radiation exposure limits set forth for an uncontrolled environment.
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