HITEC Optic 5 2.4 - Manual (Page 17)

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Minima Series Receiver Features
It is critical that before each flight session you perform a range check that confirms the signal between the receiver and transmitter is
appropriate.
Unlike the FM/PPM or PCM signal radios, 2.4GHz systems use a fixed shorter, stubby transmitter antenna so the traditional method of range
checking your system by lowering the transmitter antenna will not work.
We instead use a power-down mode to reduce the transmitter signal strength. Once the power-down mode is activated it runs for about
90 seconds, shortening the effective range 100 feet (30 m).
During this power-down mode, you should walk away from the secured aircraft, carrying the transmitter to a distance of approx. 30 meters
in order to test the effective range.
Range Check Function
How to use Power-Down
Testing the FAIL-SAFE Setting
- If FAIL-SAFE is deactivated, the FAIL-SAFE position settings are also deleted!
- The FAIL-SAFE settings should be checked every time before you run the engine motor.
a. Move the sticks to positions other than the FAIL-SAFE settings, and then switch off the transmitter.
The servos should now move to the FAIL-SAFE positions previously stored, after the HOLD period (1 sec.) has elapsed.
How to turn FAIL-SAFE Off and reactivate the Hold Mode
a. Switch on the transmitter, then the receiver. Wait for the system to boot and you have control over the model.
b. Press and hold the receiver function button for 6 seconds and release it. After 2 seconds, the RED and BLUE LEDs will blink rapidly.
c. Push the function button once shortly, during this time the LED blinks (approx. 5 seconds).
d. FAIL-SAFE Mode is now deactivated, and HOLD mode is activated instead.
e. Turn off the transmitter and the receiver to save the setting.
f. Turn the system back on to use it.
3Sec.
90Sec.
Press the function button on the back of transmitter and
hold for 3 seconds.
Release the button to activate the mode. Power-Down Mode is actvated for 90 seconds, and the countdown
starts from the time the button released.
After 3 seconds, the Optic 5 will beep once to notify you that
the system is in Power-Down Mode.
If you are unable to accomplish a successful range check of feet, DO NOT ATTEMPT TO FLY.