Owner`s manual

page 3 RITRON, INC. 1-800-USA-1-USA (1-800-872-1872)
Have questions? Call 800-USA-1-USA (800-872-1872) or visit our website at www.ritron.com
INTRODUCTION
page 1
THANK YOU FOR CHOOSING RITRON
Congratulations on your purchase of the JMX "D-
Series" radio. Your new radio is the culmination of
Ritron's 25 years of designing, manufacturing, and
supplying reliable, professional wireless
communication products. Ritron wireless products will
improve the operation, safety, and profitability of any
organization by providing instant voice
communications between employees throughout the
workplace.
JMX "D-SERIES" MODEL NUMBERS
VHF MODELS
JMX-141D ......... (Jobcom) ..... (1.5-Watt, 10 Channel)
JMX-146D ......... (Jobcom) ..... (2-Watt, 10 Channel)
JMX-144D ......... (Jobcom) ..... (4-Watt, 10 Channel)
UHF MODELS
JMX-441D ......... (Jobcom) ..... (1-Watt, 10 Channel)
JMX-446D ......... (Jobcom) ..... (2-Watt, 10 Channel)
JMX-444D ......... (Jobcom) ..... (3-Watt, 10 Channel)
The model number located on the back of the radio
case indicates its operating band. A color "dot" label
on the bottom of JMX radio cases also indicates the
frequency. Refer to the Frequency Table on page 8.
VHF radios are designed to operate within the 12 MHz
band between factory standard 150 and 162 MHz.
UHF radios are designed to operate within the 20 MHz
band between factory standard 450 and 470 MHz.
FEATURES
This manual covers the JMX "D-Series" radios.
These radios are compact, programmable two-way
handhelds designed to operate in a professional FM
communications band (VHF or UHF business available).
Each radio comes pre-programmed from the factory with
2-channels (the radio is capable of operating up to 10
channels), plus a 3
rd
Channel Scan. VHF radios are also
capable of receiving NOAA weather broadcasts. Refer
to page 6.
Each radio is equipped with the following features:
 Push-button operating controls. The Push-To-
Talk (PTT) and Channel buttons are on one side of
the radio, and the On/ Volume Up, Volume Down/
Off and monitor controls on the top.
 Channel display. The LED display will show the
current operating channel, and contains a transmit /
busy lamp.
 Quick-change battery pack and drop-in
charger capabilities. See Optional Charging
Accessories on page 11.
 10-channel capability. Up to 10 channels can be
programmed to contain a unique channel table
frequency and interference eliminator code.
 QC (Quiet Call) intereference eliminator
codes. Each channel can be programmed from a
list of 51 QC sub-audible codes.
 Field programming. The JMX "D-Series" radio
allows you to quickly select and program each
channel individually while in the field without the
need for a PC programmer. Each channel can be
programmed to one of 21 channel table frequencies
and one of 51 QC interference eliminator codes, or
you can delete a channel altogether. Refer to pages
7 - 9.
 PC Programmable. The JMX D-Series radios are
also PC Programmable for a wider range of
frequencies not listed in this amnual as well as
other custom frequencies. Refer to page 10.
 Channel Scan. The Channel Scan allows
scanning of all channels programmed into the radio.
The Channel Scan can be turned On and Off
through Field programming. Refer to pages 5 & 10.
 Weather Channel. VHF models can be pro
grammed to receive your local NOAA weather radio
broadcast. The Weather channel can be turned On
and Off through Field programming. Refer to pages
6 & 10.
 Emergency Weather Alert. VHF models can be
programmed to alert you when the National Weather
Service detects threatening weather conditions.
The Weather Alert feature can be turned On and
Off through Field programming. Refer to pages 6 &
10.
 Low battery alert. The radio will sound a low
battery alert tone once every 20 seconds when
your battery is running down to allow you time to
recharge or change your battery.
INSPECTION
Make sure the package includes:
 JMX "D-Series" radio
 Antenna
 Rechargeable battery pack (installed in radio)
 Belt clip
 BC-A charger cube
 Owner's Manual
Examine the equipment immediately after delivery and
report any damage to your shipping company.