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The TTX850 can be connected by cable to most R/C transmitters which also have a trainer / DSC jack
for training purposes. See the ACCESSORIES section for details about optional trainer cords. Select the
proper cord for Tactic and the other radio to be used for training purposes.
1.
Link the teacher’s radio to the Rx and move the throttle stick to minimum position.
2.
In the teacher’s TRAINER screen described on page 10 select which channels to NOT be transferred
to the student while training, and select a switch to control the training function. Then turn the teacher’s
Tx off.
3.
Connect the trainer cord to both transmitters, move the student’s throttle stick to minimum and turn
the student’s power switch on.
4.
Make sure only those channels selected for transfer to the student are transferred when the teacher’s
trainer switch is defl ected. Ensure the teacher can regain control of all channels when the trainer
switch is released.
5.
Perform a complete range check before fl ight.
6.
When the training session has ended, with the model safely landed and power removed from the
model, disconnect the trainer cable from both transmitters.
RANGE TEST: Before each fl ight make sure to check the operating range of the Tx / Rx set. The TTX850
includes a function that automatically reduces its output power to prevent having to walk a long distance
to check the range.
1.
Make sure the Tx throttle stick is at minimum position.
2.
Enter the “RF OUTPUT” screen in the SETTING menu, as described on page 16. Leave the “RF ON/
OFF” selection ON.
3.
Move the cursor to the “RANGE TEST” line. This time determines how long before the radio’s output
power automatically returns to full power.
4.
Place the Rx/model on the ground and apply power to the Rx/model.
5.
Hold the Tx as it will be held during fl ight and press
ENTER
. The range test timer on-screen will start
to count down. Tones will sound to identify that this function is active.
6.
Move the Tx 100 feet away from the model and confi rm all controls are transferred smoothly at all
times.
The counter will reset once the timer has expired, and reset to 99 seconds. The radio will return to full output
power at this time. Pressing
ENTER
any time during countdown will stop the timer.
A mini USB socket inside the battery compartment can connect the TTX850 to a personal computer for
updating the radio’s operating fi rmware. The software and suitable driver required for the download are free
and found at www.tacticrc.com, following the TTX850 link.
IMPORTANT:
Make sure the Tx battery shows good voltage prior to attempting a
download. Fully recharge NiMH or NiCd batteries, or use new alkalines prior to starting
the download. Once the software is loaded on the computer, the new fi rmware can be
uploaded to the Tx.
WIRED TRAINER
RANGE TEST
FIRMWARE UPDATES
