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27

A LOOK AT THE RADIO'S FUNCTIONS STEP BY STEP 

MODEL SELECT 

submenu:

 includes three functions that manage model memory: 

MODEL SELECT

,

MODEL COPY

 and 

MODEL 

RESET

. Since these functions are all related, and are all basic features used with most models, they are together in the 

MODEL SELECT

 submenu. 

NOTE: When you choose a new model in the 

MODEL SELECT

 function, if the new 

model is set to a different modulation, you must cycle the transmitter power to change 

      

screen to remind you. Please note: You are still transmitting on the other modulation 
until you affect this change. 

GOAL:

STEPS:

INPUTS:

Select Model #3. 

N O T E :   T h i s   i s   o n e   o f   s e v e r a l 
functions for which the radio requires 
 

O p e n  t h e  m e n u ,  t h e n  o p e n 

MODEL 

SELECT

 submenu.

for 1 second.

if required to 

MODEL SELECT

.

Choose Model #3.

to

3

.

K

for 1 second.

Sure?

 displays.

Close.

Confirm proper modulation of new 
model memory.

If 

SFHSS/FHSS

                   

is set for the other receiver type. Turn the transmitter off/on to change the 
modulation.

Where next?

MODEL NAME

 the model: see p. 29.

Change

MODEL TYPE

 (aircraft, heli): see p. 30.

Change modulation (

SFHSS

 or 

FHSS

): see p. 31.

Utilize servo 

REVERSE

: see p. 35.

Adjust

END POINTs

: see p. 36.

Set up 

IDLE-DOWN

 and 

THR-CUT

 for throttle management: see p. 37, 38.

MODEL SELECT

: This function selects which of the 20 model memories in the 

    ¥   

are indicated after its number. (Each model memory may be a different model 
type from the other memories.)

MODEL COPY

: copies the current model data into another model memory in the transmitter. The name of the model memory 

you are copying into is displayed for clarity. 

Notes:

   !    

type and modulation. Upon completion, it cannot be recovered. 

Examples:

K        
K      !Z!   „    
…      €             ^  ˆ         ! ¦

airplane model at extreme altitudes).

Summary of Contents for 8J

Page 1: ...8J 2 4GHz 8 CHANNEL RADIO CONTROL SYSTEM INSTRUCTION MANUAL Technical updates and additional programming examples available at http www futaba rc com faq Entire Contents 2012 1M23N26602...

Page 2: ...nt 36 Idle Down 37 Throttle Cut 38 D R EXP 39 Timer 42 AUX CH 43 Trainer 44 Trim 45 Sub Trim 46 Servo 47 Fail Safe 48 Flaperon ACRO Only 49 Flap Trim ACRO Only 51 AIL DIFF ACRO Only 52 Elevon ACRO Onl...

Page 3: ...to contact the Futaba Service Center for assistance in operation use and programming Please be sure to regularly visit the 8J Frequently Asked Questions web site at www futaba rc com faq This page inc...

Page 4: ...e radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will n...

Page 5: ...erformed Although your 8J protects the model memories with non volatile EEPROM memory which does not require periodic replacement and not a battery the transmitter still should have regular checkups f...

Page 6: ...ocked over the throttle stick may be accidentally moved causing the engine to speed up Also damage to your transmitter may occur In order to maintain complete control of your aircraft it is important...

Page 7: ...helicopter and other programming functions even with a 4 channel buddy box Optional trainer cord required Z _ and a notched throttle to minimize throttle changes with rudder input Defaults to ACRO mo...

Page 8: ...ystem includes the following components T8J Transmitter R2008SB Receiver Z The set contents depend on the type of set Transmitter T8J 2 stick 8 channel S FHSS system Built in Dual Antenna Diversity Tr...

Page 9: ...es the newer micro rectangular type cord plug Both new to new and new to round plug style trainer cords are available Z Y Z Z Y Y Y Y duty version with heavier wire are available to aid in your larger...

Page 10: ...Dual Rate Snap Roll or Trainer Switch Landing Gear Switch CH5 Rudder Throttle Stick Power LED Throttle Trim Lever Rudder Trim Lever END Key Key Key Aileron Trim Lever Elevator Trim Lever Elevator Aile...

Page 11: ...y Key Aileron Trim Lever Elevator Trim Lever Elevator Aileron Stick Aileron Dual Rate Switch Digital Trim 6 Digital Trim 5 Carrying Handle Built in Antenna Switch Jog Key Idle up 3 Switch Gyro CH5 Idl...

Page 12: ...X if you choose to use the optional HT5F1700B FT2F2100B battery pack which can be recharged from the transmitter And BATT TYPE in a PARAMETER is changed into 5CELL in the procedure of P 33 WARNING Do...

Page 13: ...TCH F or H snap roll trainer trainer THR CUT SWITCH G or E none idle up 1 and 2 SWITCH H or F none idle up3 gyro VR FLAPERON on CH8 On the 8JA Mode 2 transmitters the TOP LEFT SWITCHES are spring load...

Page 14: ...ing Second Aileron option second aileron servo output is sent to channels 5 and 6 AILE 2 4 AILEVATOR dual elevator mode Receiver Output and Channel Helicopter HELI 1 aileron cyclic roll 2 elevator cyc...

Page 15: ...y packs without adult supervision Do not charge battery packs that have been damaged in any way We strongly suggest frequent inspection of the battery packs to ensure that no damage has occurred Do no...

Page 16: ...tighten the four screws Reinstall the battery and cover Z Z transmitter more comfortable to hold and operate To lengthen or Z Z Z locking piece B and turning stick tip A counterclockwise Next move the...

Page 17: ...the model while simultaneously operating the Z Y control 3 If everything operates correctly return to the model Push END KEY and complete power down mode Set the transmitter in a safe yet accessible l...

Page 18: ...l be transmitted to the servo causing premature wear and or servo failure _ Y The numbers indicate how many degrees each arm is off from 90 degrees to correct for minute manufacturing deviations from...

Page 19: ...then seamlessly selects the best signal reception between these antennas to ensure that there is no loss of signal 1 The two antennas must be kept as straight as possible Otherwise it will reduce the...

Page 20: ...and securing the open end of the bag with a rubber band before wrapping it with foam rubber If you accidentally get moisture or fuel inside the receiver you may experience intermittent operation or a...

Page 21: ...half meter 2 Turn on the transmitter 3 Turn on the receiver 4 Press and hold the Link switch more than two 2 seconds When the link is complete the LED in the receiver changes to solid green When the I...

Page 22: ...US system When separate power supply used When a large number of servos is used or when high current servos are used the servos can be driven by a separate power supply by using a separate Power Suppl...

Page 23: ...odel type reset entire model condition of a helicopter setup is changed An on screen inquiry will ask if you are sure Press JOG KEY again to accept the change KEY Press and hold KEY for one second to...

Page 24: ...control is deactivated Switches for which warnings will be issued at power up are listed below Throttle cut idle down snap roll airbrake throttle stick and condition If turning a switch OFF does not...

Page 25: ...d Point 36 Idle Down 37 Throttle Cut 38 D R EXP 39 Timer 42 AUX CH 43 Trainer 44 Trim 45 Sub Trim 46 Servo 47 Fail Safe 48 Flaperon ACRO Only 49 Flap Trim ACRO Only 51 AIL DIFF ACRO Only 52 Elevon ACR...

Page 26: ...dicator in the pper right hand corner to indicate page o or page o o se og ey to highlight nction in en screen hen press the ial to choose that nction Jog Key Up Down Jog Key Left Right Press Jog Key...

Page 27: ...ond if required to MODEL SELECT Choose Model 3 to 3 K for 1 second Sure displays Close Confirm proper modulation of new model memory If SFHSS FHSS is set for the other receiver type Turn the transmitt...

Page 28: ...completely overwrites anything in the existing model memory including MODEL NAME The MODEL TYPE function overwrites all data except name and RX MODUL GOAL of EXAMPLE STEPS INPUTS Reset model memory 1...

Page 29: ...PS INPUTS K Y Z _ Open MODEL NAME submenu for 1 second to MODEL NAME K K_ to C Change the next character Ex O to a to a note lower case is available Repeat the prior steps to complete naming the model...

Page 30: ...l type If your transmitter is a T8JA the default is ACRO If it is a HELI H1 ACRO is the best choice for most powered airplanes ACRO adds SNAP ROLL AILEVATOR twin elevator servo support Y IDLE DOWN THR...

Page 31: ...annel restrictions GOAL of EXAMPLE STEPS INPUTS Change model 1 from S FHSS to FHSS Confirm you are currently using the proper model memory Ex 1 Z number on top left and the modulation on top right If...

Page 32: ...TEPS INPUTS Change ATL from ON to OFF for battling Z Z channel 3 uses Open the menu then open PARAMETER submenu for 1 second to PARAMETER Go to ATL and Change Ex to OFF to ATL to OFF Close Where next...

Page 33: ...NAME to THR PIT Open the menu then open PARAMETER submenu for 1 second to PARAMETER Go to HOME DSP and change setting Ex THR PIT to HOME DSP to THR PIT Close Transmitter battery type BATT TYP LED adju...

Page 34: ...rformed Open MDL TRANS function for 1 second to MDL TRANS The transmitting side is turned on Select TRANSFER or RECEIVE Data is transmitted to Execute for 1 second Data Trans is for 10 seconds T8J of...

Page 35: ...HR REV is a special function that reverses the entire throttle control including moving the trim functionality to Z THR REV see p 92 This change affects all models in the radio GOAL of EXAMPLE STEPS I...

Page 36: ...each individual servo can be Y FLAPERON Z KK pitch in SWASH AFR Z END POINT Z utilizing END POINT The higher the END POINT setting the better position accuracy and the more servo power available _ EN...

Page 37: ...of a switch and THR CUT IDLE DOWN is set to SWITCH C Z THR CUT also on SWITCH C K center for slower maneuvers landing and down to cut the engine If you assign IDLE DOWN or THR CUT Y loaded TRAINER SWI...

Page 38: ...H C in the down position with IDLE DOWN programmed to SWITCH C in the center and down positions Open THR CUT function for 1 second to THR CUT Activate the function Choose desired switch and the positi...

Page 39: ...HELI type Y THROTTLE CURVE instead ACRO type throttle EXP and THROTTLE CURVE cannot be activated simultaneously Why Z Z Z Z our example below The best way to understand exponential is to try it D R EX...

Page 40: ...o D R EXP Choose channel to desired channel K to No to UP Set rate and exponential Ex high rate _ to D R to 95 K 0 EXP Go to 2nd switch position and set rate and exponential to No to DN Repeat above t...

Page 41: ...more comfortable feel Z Y switch To do so simply set up rates for all 3 controls and assign all 3 to the Y Open D R EXP function for 1 second to D R EXP Choose the channel to change Ex aileron is alr...

Page 42: ...trolled by THROTTLE STICK Z Z correlate with fuel battery usage Open TIMER function for 1 second to TIMER Go to TMR2 to 10 TMR2 Adjust time to 4 min 30 sec count down to 4 to 00 TMR2 to 30 Assign to T...

Page 43: ...to AUX CH Choose the channel to change ex ch 6 to Ch 6 Change primary control ex to digital trim DT5 to DT5 Repeat as needed ex ch 7 to NULL to Ch 7 to NULL Close Where next Programmable mixes see p 6...

Page 44: ...NOR Z Z Then allow the student radio to fully fly the model NOR mode set lower throws different exponentials even different auxiliary channel settings on the student radio if it has these features ail...

Page 45: ...OAL of EXAMPLE STEPS INPUTS Reset trims to neutral after having Z Open TRIM submenu for 1 second to TRIM Reset trims to neutral for 1 second Beep sounds Close Where next Adjust SUB TRIMs see p 46 Adju...

Page 46: ...TRIM Z GOAL of EXAMPLE STEPS INPUTS SUB TRIM until its center exactly matches the aileron Z Open SUB TRIM for 1 second to SUB TRIM Choose the channel to adjust and adjust the values until the surface...

Page 47: ...UX CH for details p 43 Open the SERVO function for 1 second to SERVO Move each control to see the operation Ex SWITCH C in all positions C to center position Note change in position of ch 6 servo Cycl...

Page 48: ...e o f s e v e r a l functions for which the radio requires Open F S function for 1 second to F S Choose Channel to change ex Ch 8 to Ch 8 Set and fail safe command that controls channel 8 to desired O...

Page 49: ...AP TRIM AIL DIFF AIL DIFF K K AIRBRAKE see p 61 You will need to choose either of FLAPERON or AIL DIFF Z FLAPERON AIL DIFF is probably Y Many other setup examples are also available at this site Y FLA...

Page 50: ..._ ELEVATOR FLAP FLAP TRIM is activated GOAL of EXAMPLE STEPS INPUTS Activate twin aileron servos FLAPERON travel aileron differential within the FLAPERON programming Decrease right _ of aileron trave...

Page 51: ...automatically activated with FLAPERON travel is 0 Adjust the travel available to the K DIAL Ex 5 to 5 Close menu Where next SUB TRIMs see p 46 and END POINTs see p 36 Set up AIRBRAKE mix see p 61 and...

Page 52: ...defaults to no difference in down travel vs up travel If you want differential travel simply _ Open the AIL DIFF function for 1 second to AIL DIFF Activate the function to MIX to ACT Optional adjust...

Page 53: ...essage OTHER WING MIXING ON displays and you must deactivate the last function to activate ELEVON Z the AILERON and ELEVATOR STICKS are moved at the same time the controls may bind or run out of trave...

Page 54: ...et to 0_ another in conjunction with the ailerons Once AILEVATOR is activated unless you zero out the aileron values see below any time you move your ailerons or any Y _ servos to also operate as aile...

Page 55: ...y K K RUD1 and 2 to 0 Next use two programmable mixes RUD ELE and RUD RUD setting different percentages for up and down These are your new rudder travels Trim off PROG MIX p 65 FG 4 B B C 4 2 GOAL of...

Page 56: ...IRC SW1 2 to change snap directions is fully adjustable and optional If you wish to have only one snap leave the switches as NULL If assigned SW1 up down SW2 left right K K K K _ K _ _ not an up posit...

Page 57: ...n to MIX to OFF or ON Adjust the travels as needed Ex aileron to 105 elevator to 95 rudder to 120 to AIL to 105 to ELE to 95 to RUD to 120 Optional Activate SAFE MODE 5 when SWITCH E IJF2 G IJ 2 deact...

Page 58: ...oved see p 62 Z THROTTLE DELAY simulates turbine engines p 63 and the elevator delay in AIRBRAKE are two examples of this see p 61 DELAY in HELI see p 84 is another example that slows the servo moveme...

Page 59: ...able SwA to H NULL Z GOAL of EXAMPLE STEPS INPUTS Activate ELEV FLAP mixing Adjust flap travel to 0 push and 45 flaps with positive elevator Open the ELEV FLAP function for 1 second to ELEV FLAP Activ...

Page 60: ...gether Channels controlled _ _ AIRBRAKE including set to 0 to have no effect FLAPERON ELEVON and AIL DIFF functions are inhibited then AIL1 and AIL2 settings will have no effect FLAPERON K K AIL DIFF...

Page 61: ...is turned ON by down with a center to SW to SWC to DOWN to CT DN Adjust the travels as needed Ex Ailerons each 75 Elevator 25 to AIL1 to 75 to ELEV to 25 to FLAP to 75 Z elevator servo responds YELEV...

Page 62: ...f EXAMPLE STEPS INPUTS Activate THROTTLE NEEDLE mixing Adjust the points as follows to resolve a slight lean midrange problem 1 40 2 45 3 65 4 55 5 40 Open the THROTTLE NEEDLE function for 1 second to...

Page 63: ...e servo response by one second Open the THR DELAY function for 1 second to THR DELAY Activate the function to MIX to ACT Adjust the RATE to match the desired servo speed Ex 40 to RATE to 40 Close menu...

Page 64: ...the THR CURVE function for 1 second to THR CURVE Activate the function to MIX to ON Y position Switch E in up position to point 1 P 1 to desired throttle servo position Repeat above steps Adjust the n...

Page 65: ...POSITION RATE RUDD AIL OFF ANY NULL 25 0 To create an OFFSET when SWITCH C is in down position MASTER TRIM K POSITION RATE OFS FLP N A C DOWN 20 N A Ex create a second throttle trim on DT6 lever MASTE...

Page 66: ...d on off by THROTTLE STICK movement Trigger point direction are selectable Ex OFSY Y _ mix to open gear doors at idle which is only active if throttle is below half MASTER TRIM K POSITION RATE OFS AU2...

Page 67: ...onal set switch to THR to activate THROTTLE STICK 4 2 to SW to THR to POSI THROTTLE STICK to desired point for 1 second to set Optional set switch position to NULL C 4 THR to POSI to NULL Set rates Ex...

Page 68: ...nts along its RPM range One programmable curve mix defaults to RUDDER AILERON Z Z Y K F 4 U V 4 C X ACRO The 2 programmable curve mixes default to the most frequent choices but can be set to any chann...

Page 69: ...6 since it is Y RUDDER ELEV for 1 second to P MIX1 6 to 6 Activate the function to MIX to ON Choose master and slave channels Ex do not change MAS or SLV already RUDD already ELEV Assign SWITCH and po...

Page 70: ...ss you are an expert in rudder operation _ GOAL of EXAMPLE STEPS INPUTS Set up a GYA gyro setting Open and activate the GYRO SENSE function for 1 second to GYRO SENSE Activate the function to MIX to O...

Page 71: ...cal retracts will continue to draw full power the entire time prematurely draining the battery Z Pneumatic air driven retracts use a standard servo to control an air valve which directs air into or ou...

Page 72: ...set 28 Model Name 29 Parameter 30 Model Type 30 Y _ 31 ATL 32 LCD adjustment 32 Battery Type 33 Model Date Transmission 34 Reverse 35 End Point 36 Idle Down 37 Throttle Cut 38 39 Timer 42 K 43 Trainer...

Page 73: ...eral advantages the most obvious of which is far less mechanical complexity to properly move the swashplate of the helicopter Additionally several servos Z _ well as the precision and centering Please...

Page 74: ...not the correct model example 3 see MODEL SELECT Open PARAMETER submenu for 1 second to PARAMETER Select proper TYPE HELICOPTER to TYPE to HELICOPTER for 1 second Are you sure displays 1 Change to th...

Page 75: ...ective pitch without affecting the aileron action CHECKING FOR PROPER MOTION ON AN HR3 SWASHPLATE HR3 Swash Type PROPER MOTION WRONG MOTION HOW TO FIX AILERON STICK Swashplate tilts right Swashplate t...

Page 76: ...ed by aileron elevator and rudder controls Adjustability Y GOAL of EXAMPLE STEPS INPUTS When the right roll is carried out an elevator is down and an adjustment is needed Open SWH MIX function for 1 s...

Page 77: ...xt HI LOW PIT see p 86 GOVERNOR set up see p 89 Swash Ring SWASH RING_ Z by simultaneous operation of the ailerons and elevators It is effective in 3D aerobatics which use a large amount of travel GOA...

Page 78: ...our Y THR CURV NOR inputs the normal NORM throttle curve which is usually not a linear response to THROTTLE STICK THROTTLE STICK midpoint the desired position for hovering The other 4 points are then...

Page 79: ...r trim Repeat until model hovers smoothly at half throttle Rapidly apply throttle from 1 4 Z REVO until the nose does not change heading Adjust THR CURV NOR Repeat above as needed Adjust PIT CURV NOR...

Page 80: ...omatically activated with THR HOLD 3 Since revo mix adjusts for torque from the engine no revo mix is available for THR HOLD Priority Y Y SWITCHES are in the desired positions before trying to start t...

Page 81: ...se curve is being edited Example see curve displays below Note that the normal condition is Y _ COND and press the JOG KEY for one second Then select to desired condition and press the KEY Y throttle...

Page 82: ...easily Lastly the gyro and dual rate functions may be set to provide separate rates per condition Y Z Z _ _ Z changes in pitch Y Z _ _ Y K Y Adjustability SWITCH G 8JA or E _ NORM_ Y IDLE UP1_ Y IDLE...

Page 83: ...S adjusts the stored offset not the trims in the normal condition OFFSET is inactive its switch is off the OFFSET and any trim adjustments Y condition OFFSET DELAY function During OFFSET operation the...

Page 84: ...EXAMPLE STEPS INPUTS Set up a delay on all channels to ease to another so there are no hard jumps Open the DELAY function for 1 second to DELAY Adjust AILE response as needed Ex aileron to 8 to 8 Rep...

Page 85: ...s nicely In curves near hover point independently with HOV THR and HOV PIT Z Open the HOV PIT function for 1 second to HOV PIT 4 NULL to MIX to ON YVR Y Y Y _ Z Store the current dial settings prior t...

Page 86: ...multiple models GOAL of EXAMPLE STEPS INPUTS Y 1 condition Open the HI LO PIT function for 1 second to HI LO PIT A function is turned on to ADJ Y to NORM to IDL1 or for 1 second to IDL1 Set the rate E...

Page 87: ...a large input for a stall turn for example the gyro turns itself off and Z Z Y _ 4 Y Y Z Y Y Y Z _ Y K K using specialized digital servos Examples K K Y K Y _ Y algorithm put it a quantum leap ahead o...

Page 88: ...tivate the function to MIX to ON hold GY2 to TYP to GY Ex select Cond to SW to Cond Adjust gyro rates as needed Ex NORM IDL3 to NOR 50 IDL1 and 2 to AVC 50 as starting points to NORM to NOR 50 to IDL1...

Page 89: ...if you want the governor to function in that condition Y _ be created using an additional channel and a programmable mix See www Y GV 1 connections Magnetic sensor Throttle servo Control amp Mixture...

Page 90: ...sa GOAL of EXAMPLE STEPS INPUTS Y both channels into the receiver and switch between the governor settings automatically when changing conditions Consider setting the battery Y Open and activate the G...

Page 91: ...l This can be K Usually this calibration is unnecessary Z prolonged use THR ELE RUD AIL MODE 1 ELE THR RUD AIL MODE 2 THR ELE AIL RUD MODE 3 ELE THR AIL RUD MODE 4 Simultaneously depress the and keys...

Page 92: ...Complete and is END END Simultaneously depress the and keys and then turn on the power It is down about KEY It chooses THR REV NOR K by KEY It completes with the Simultaneously depress the and keys an...

Page 93: ...93...

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