Hobbico TM12J 24G User Manual

Great Planes / Hobbico

JM912

Radio Control

Instruction Manual

INTRODUCTION

Thank you for purchasing the JM912 digital proportional R/C system. In order for you to
make the best use of your system and to use it safely, please read this manual carefully. If
you have any difficulties while using your system, please consult the manual, our online
Frequently Asked Questions (on the web pages referenced below), your hobby dealer, or the
Hobbico Service Center.

Owner’s Manual and Additional Technical Help
This manual has been carefully written to be as helpful to you, the new owner, as possible.

There are many pages of setup procedures and examples. However, it need not be your sole
resource of setup guidelines. For example, the back cover includes a quick-start set of
instructions and the Frequently Asked Questions web page referenced below includes this
type of step-by-step setup instructions for a variety of other model types.

Due to potential unforeseen changes in production procedures, the information contained in
this manual is subject to change without notice. No part of this manual may be reproduced in
any form, at any time, without prior permission.

Support and Service: It is recommended to have your Hobbico equipment serviced annually
during your hobby’s “off season” to ensure safe operation.

Please feel free to contact the Hobbico Service Center for assistance in operation,
use and programming. Please be sure to regularly visit the Frequently Asked
Questions web site referenced below. This page includes extensive programming,
use, set up and safety information on your radio system and is updated regularly.
Any technical updates and US manual corrections will be available on this web page.
If you do not find the answers to your questions there, please see the end of our
F.A.Q. area for information on contacting us via email for the most rapid and
convenient response.

1

Hobbico Service Center

3002 N. Apollo Drive Suite 1

Champaign, IL 61822

TEL[phone], FAX[phone]

HOW TO ACCESS to FAQ:

To be determined

The product is subject to regulations of the FCC and is restricted

under United States law to such purposes.

(See end of this manual for detail)

2

Physical Description

JM912 (Transmitter)

PIN ASSIGNMENT

Back side of the JM912

5-pin connector for I/F to transmitter

Ant.

Fig.1 JM912 communication port location

1. Plug the JM912 into your transmitter.

2. Turn the transmitter on and please check the LED on the JM912 become solid
green when it’s normally operated.

3. Never point the antenna to the model when flying.

3

Frequency Allocation

The JM912 can operate on 36 available frequencies between 2405.376 MHz and 2479.104
MHz with 2.048 MHz separation between each frequency. See the table below for the
exact frequency assignments.

Table 1 ：Frequency Channel

Channel № Frequency

(MHz)

0２ ２４０５．３７６ ３８ ２４４２．２４０
0４ ２４０７．４２４ ４０ ２４４４．２８８
0６ ２４０９．４７２ ４２ ２４４６．３３６
0８ ２４１１．５２０ ４４ ２４４８．３８４
１０ ２４１３．５６８ ４６ ２４５０．４３２
１２ ２４１５．６１６ ４８ ２４５２．４８０
１４ ２４１７．６６４ ５０ ２４５４．５２８
１６ ２４１９．７１２ ５２ ２４５６．５７６
１８ ２４２１．７６０ ５４ ２４５８．６２４
２０ ２４２３．８０８ ５６ ２４６０．６７２
２２ ２４２５．８５６ ５８ ２４６２．７２０
２４ ２４２７．９０４ ６０ ２４６４．７６８
２６ ２４２９．９５２ ６２ ２４６６．８１６
２８ ２４３２．０００ ６４ ２４６８．８６４
３０ ２４３４．０４８ ６６ ２４７０．９１２
３２ ２４３６．０９６ ６８ ２４７２．９６０
３４ ２４３８．１４４ ７０ ２４７５．００８
３６ ２４４０．１９２ ７２ ２４７７．０５６
７４ ２４７９．１０４

Channel № Frequency

(MHz)

4

Specification

JM912 SPECIFICATIONS

1 Radio Characteristics

2 Radio communication control
3 Terminal interface

4 Power Supplying

5 Environmental

6 Miscellaneous

RF power output 100mW EIRP
Modulation Direct-Sequence Spread-Spectrum
Frequency band 2405.376MHz - 2479.104MHz
Channel 36
Antenna 1/2λ Pencil type antenna 2.0dBi

Error checking CRC-CCITT
Physical interface 5 pins
Supply voltage 9.6V DC

Current consumption 150 mA(Approx.)
Operating temperature -10 to +60 ℃

Storage temperature -20 to +70 ℃

Indicator 2 color LED

5

INSTRUCTIONS MANUAL
FEDERAL COMMUNICATIONS COMMISSION
INTERFERENCE STATEMENT

This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used according to the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which it found by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet other than the receiver’s

-- Consult the dealer or an experienced radio/TV technician for assistance.

CAUTION:

To assure continued FCC compliance:
(1) Any changes or modifications not expressly approved by the grantee of this device

could void the user's authority to operate the equipment.

FCC Label Compliance Statement:
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.

Exposure to Radio Frequency Radiation
To comply with FCC RF exposure compliance requirements, a separation distance of at
least 20cm must be maintained between the antenna of this device and all persons. This
device must not be co-located or operating in conjunction with any other antenna or
transmitter.