HITEC ATOM3 Instruction Manual Download Page 2

What is Fail-Safe Mode?

If you use the FAIL-SAFE function, and set it up properly, should the receiver signal 

somehow be interrupted or interference were to occurred, the servos will move to 

your pre-set FAIL-SAFE position you previously stored in the receiver during the 

FAIL-SAFE set-up. 

If FAIL-SAFE has not been activated, the signal is switched off after the HOLD period 

of  1  sec.  This  means  that  the  servos  become  “soft”  and  remain  in  their  last 

commanded position under no load (this may equate to full-throttle!), until a valid 

signal is picked up again.

In  the  interests  of  safety,  we  recommend  that  FAIL-SAFE  should  always  be 

activated, and the FAIL-SAFE settings should be selected so as to bring the model 

to  a  non-critical  situation  (e.g.  motor  idle  /  electric  motor  OFF,  control  surfaces 

neutral, or full brake, etc.)

When LED On (Fail-Safe Mode On): 

Press the function button once to switch to the hold mode, the LED will goes off and 

indicates that the receiver is in Hold Mode.

Note:  once  you  switch  to  the  hold  mode  all  the  saved  Fail-Safe  position  will  be 

deleted.

When LED Off (Hold Mode On): 

To switch to the Fail-Safe Molde, first adjust all the control knobs to the fail-safe 

position you prefer, then press the function button once, the LED turns on at the 

same time the fail-safe position will be saved. 

Once Fail-Safe/Hold Selection Mode activated , you can keep switching the mode by 

pressing the function button.

    

FAIL-SAFE / HOLD Option

Fail-safe or Hold Mode Switch

Fail-Safe Setup Method

Receiver Connection Diagrams

Link (ID-Setting)

How to Link Spectra 2.4DS and Atom 3 receivers

To avoid any interference, the link process should be done
 within 3 feet (1 meter) in distance.

Note

If FAIL-SAFE is deactivated, the FAIL-SAFE position settings are also deleted!

Note

The FAIL-SAFE settings should be checked every time before you run the 

engine/motor.

Note

SERVO

SERVO

SERVO

Receiver 

Battery

Steering

Engine

AUX

Servos and other accessories may be set with a FAIL-SAFE point or choose HOLD 
mode if power to the receiver is lost.

Electric powered car with Electronic Speed Control
Use this method on electric car using ESC’s providing power to the receiver and 
servo functions

Glow, gas or electric powered aircraft using a separate receiver battery supply.
Follow this connection diagram when using a regulated Li-Po, or 4.8 to 6V. Receiver 
battery,

It is already lined between Spectra 2.4DS and Atom 3, if purchased as a set
* Only for the module/receiver combo set or radio combo sets.

If purchased separate Atom 3, the Link (ID-Setting) process is required.

How to Link additional receivers:
Please refer to the connection diagram and connect all the necessary items before 
the process.

How to Link Spectra 2.4DS and Atom 3 receivers:

Atom 3 receiver:

1.  Press the Function Button and turn on the power.
2.  Release the button and confirm the red LED is blinking. The receiver is waiting 
  for incoming signal.
3.  Once the receiver’s link (ID-Setting) process done. The red LED will stop blinking 
  and become steady on status.

Spectra 2.4DS:

1.  Press the Function Button and turn on the power.
2.  Release the button the red LED will blinking and looking for a receiver.
3.  Confirm that the receiver’s red LED is solid on.
4.  Turn off receiver first then the transmitter power..
5.  Turn on receiver first then the transmitter power.

Now you are ready to run.

Power Battery

Motor

BEC

ESC

SERVO

SERVO

Steering

AUX

Push the button once to switch the mode

d. LED On: Fail-Safe Mode ON

d. LED Off: Hold Mode On

  Atom 3

b. Press the function button of the

    Atom 3 and turn on the power.

c. Check the LED Status

a. Press the function button of the Spectra 2.4DS 

    and turn on the transmitter.

Spectra 2.4DS

Product Approved to HITEC RCD, INC.
Manufacturer/Country: HITEC RCD, INC./The Philippines
Production Date:

Warning!

This product is designed to be used as a R/C hobby product and should
be operated under local regulation.
Improper use of this product can be dangerous. 
Improper usage can cause damage other’s properties and/or cause serious injury.
Never operate your vehicle in a crowded street with traffic
To maintain compliance with FCC’s RF exposure guidelines, this equipment 
should be installed and operated with minimum separation distance of 20cm 
between the radiator and your body. 
Use only the supplied antenna.

Reviews: