HITEC SPECTRA 2.4J Instructions Download Page 1

www.hitecrcd.com

Hitec Service 

12115 Paine St. Poway CA 92064

1-858-748-6948

E-mail: [email protected]

Introduction

Service & Support

General Use Guidelines

Range Check Function

Hitec Customer Service

Help is available from Hitec customer service through phone support and e-mail inquiries. 

Our US office is open Monday thru Friday, 8:00AM to 4:30PM PST.  These hours and days may vary by season. We 

make every attempt to answer all incoming service calls; should you reach our voicemail, please leave your 

name and number and a staff member will promptly return your call. 

Hitec Website

We invite you to regularly visit our website at 

www.hitecrcd.com

 for specification information and descriptions 

of our entire product line. Our FAQ pages provide valuable information as well as program updates on the 

Spectra 2.4GHz module and Optima series of receivers.

The On-Line Community

One of the benefits of the extensive RC on-line community is the vast wealth of archived information available. 

Hitec sponsors forums on most of the popular RC websites where a Hitec staff member or representative 

answers product-related questions.  Bringing together strangers with common interests is proving to be one of 

the greatest gifts of the internet. If past history is any guide to the future, we are certain forums will be started 

about the Hitec 2.4GHz system creating valuable archived information for future access.   

Warranty and Non-Warranty Service

All Hitec products carry a two-year warranty against manufacturing defects from date-of- purchase. Our trained, 

professional service representative will determine if the item will be repaired or replaced.  Please complete and 

include the repair form at 

www.hitecrcd.com

 when you return your item so that we may administer your repair 

promptly.

Thank you for your purchase of the Hitec Adaptive Frequency Hopping Spread Spectrum or AFHSS, 2.4GHz 

module and receiver system.  This manual contains the complete directions on how to use the Optima series 

receivers and Spectra 2.4GHz module. We encourage you to review the entire manual before using these 

products.

1. Dual Blue and Red Status Indicator LEDs

- Indicates the set-up process codes and current status of the module.

2. Function Button

-

 Used for linking the module to a receiver, entering the “power down” mode for range checks and switching 

   system to the Scan / Normal Mode set-up.

3. Sensor Data Output and System Update Connector Port 

- A three-pin servo connector port is featured on the Spectra 2.4GHz module allowing you to upgrade the 

   device software as well as download any information recorded when using Hitec's AFHSS 2.4GHz optional 

   on-board sensors.  This port also interfaces with our new Telemetry System Sensor Station, allowing real-time 

   data display on the ground when flying with the Aurora 9 transmitter.

4. Adjustable Omnidirectional Antenna

- The Spectra 2.4GHz antenna is an omnidirectional antenna which can transmit and receive the transmitter 

   and receiver data.

   For the best reception, refer to the set-up example picture in the above Warning box.

5. Compatible Transmitters

- The Spectra 2.4GHz module and antenna can be used with the following Hitec transmitters:

   Eclipse 7, Optic 6,  Aurora 9 and all future Hitec module-type transmitters.

- In all cases, any transmitter using the Spectra 2.4GHz module will be compatible only with 

   Hitec AFHSS 2.4GHz series receivers.

General Use Guidelines

To turn the system on and off, use the following sequence at all times.

Before each flight, it is critical that you perform a range check to confirm the signal between the receiver and 

transmitter is appropriate. Unlike the FM/PPM or PCM signal radios, 2.4GHz systems use a fixed, shorter 

transmitter antenna commonly called a "rubber duck" antenna.  Therefore, the traditional method of range 

check, lowering the transmitter antenna, is not applicable. 

The Hitec 2.4GHz system uses a “power down” mode to reduce the transmitter signal strength. 

Once the “power down” mode is activated, it runs for about 90 seconds effectively shortening the range 

to

 30 

meters or 100 feet. During this "power down" mode, you should walk away from the secured aircraft carrying the 

transmitter to a minimum distance of approximately 30 meters or 100 feet in order to test the effective range.

How to use "Power Down"

AFHSS 2.4GHz Telemetric Module

Stock # 28315

Spectra 2.4 Module Features

 - Installing Spectra 2.4J module to your JR* transmitter is as easy 

    as one, two, three. simply slide the module through the carrying 

   handle bar and slide-in the module to the module slot of the 

   transmitter, until you hear the ‘click’ sound. Turn the power 

   on of the transmitter and the receiver, wait until the 

   Spectra 2.4J moudle and Optima receiver get connected. 

Warning!

1. For maximum performance, we recommend positioning the antenna at a 90 degree 

    angle as shown below.

*JR is a registered trademark of Japan Remote Control Corporation of Japan

2. The receiver antenna should not be placed near 

     the engine, metal parts or high current batteries.

3.  When using a large number of high-power digital 

     servos, we recommend using the SPC feature to 

     insure the receiver gets the power it needs in 

     high-load conditions.

4. Depending on flying conditions, you may possibly  

     experience a time delay in receiving telemetry 

     data from the HTS-SS (Sensor Station).

Recommended Position

* Above image is different than the actual transmitter used. JR* transmitter is required to work this module properly.

With the exception of the Aurora 9 and future Hitec 2.4GHz models, all other transmitter 

modules should be set up as PPM. 

Note

HITEC SPECTRA 2.4J 

AFHSS Module Instruction 

                                       

version 1.3

Range Check Mode

Press & Hold Button

Scan/Normal Mode

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  Now you are ready to fly, and you can experience Hitec’s AFHSS 2.4GHz telemetry system, which will teach you

   the whole new way of enjoy your R/C.

Spectra 2.4J Module Installation

Warning

* When the Spectra 2.4J module is used for JR* radios, the PPM mode is required to be 

  activated for proper work.

• Risk of explosion if battery is replaced by an incorrect type. 

  Dispose of used battery according to the instructions. 

European CE notice to users and product statements.

This product is CE marked according to the provisions of the R&TTE Directive(99/5/EC).  

Hereby, HITEC RCD Inc. declares that this product is in compliance with the essential 

requirements and other relevant provisions of Directive 1999/5/EC. 

For further information, please contact 

http://www.hitecrcd.co.kr 

• FRANCE Frequency Range : 2.4056GHz~ 2.4482GHz

FCC notice to users and product statements:

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, and (2) this device must accept any interference received,

including interference that may cause undesired operation. 

CAUTION: Changes or modifications not expressly approved by the party

responsible for compliance could void the user’s authority to operate the equipment. 

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