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
RADIO PROGRAMMING
IMPORTANT
To talk to other users in your group, all
radios must be set to the same frequency
and Interference Eliminator codes.
FIG-6: HOW TO PLACE THE RADIO IN
PROGRAM/READOUT MODE
CH
ON
OFF/HOLD
VOLUME
3. PRESS & RELEASE -
THE RADIO WILL
START BEEPING
RAPIDLY.
2. PRESS & HOLD
THE PUSH-TO-
TALK BUTTON.
4. CONTINUE HOLDING THE PUSH-
TO-TALK BUTTON UNTIL THE
BEEPING STOPS, THEN RELEASE
IT.
5. THE RADIO WILL EMIT A TRIPLE
TONE: IT IS NOW IN PROGRAM/
READOUT MODE.
1. PRESS & HOLD UNTIL
THE "RADIO OFF"
TONES ARE HEARD,
THEN RELEASE.
HOW TO READOUT FIELD PROGRAMMED FREQUENCY & TONE CODES
In our example channel 3 of a JMX-446D radio is programmed to operate on the "Brown Dot" frequency of
464.500 MHz (Frequency code "04") with 100.0 Hz tone (Tone code "12").
page 7
CHANNEL RADIO IDENTIFICATION
FREQUENCY &
TONE CODES
If more than 5 digits
are displayed, refer
to page 14.
!
1. Place the radio into Program/ Readout Mode by following the instructions in FIG-
6 at left. A "P" will appear on the LED display as you enter program mode.
2. Release the Push-to-talk button after the beeping has stopped. The radio will
display a series of six characters for Radio Identification, with each character
separated by a hyphen. The 1st two characters indicate the model number, the
3rd and 4th characters indicate the radio type, and the 5th and 6th characters
indicate the firmware revision.
In this example: Model: 25
Radio Type: 15
Firmware Revision: 01
NOTE: Radio models with firmware revisions prior to 15.01 do not display the
Radio Identification sequence.
3. After the Radio Identification has been displayed the digit 1 will appear,
followed by a hyphen, and the radio will emit a triple beep indicating that the
radio is in program mode and channel 1 is selected.
4. Press the Channel button to select the channel to be read out. The channel
number will appear briefly on the display as you step through the channels.
When you have settled on a channel a hyphen will appear across the center
of the display to indicate that it is ready for readout.
5. Press and release the On/Volume Up button. The radio will begin to display a
series of four digits; with each digit separated by a hyphen.
The 1st and 2nd digits indicate the frequency code; see Table 1 on page 9.
The 3rd and 4th digits indicate the tone code; see Table 2 on page 10.
JMX-144D/446D/444D Models Only
If a 5th digit is displayed, the channel has been programmed for DQC and the
last three digits indicate the DQC code; see Table 3 on page 10.
6. If the channel is PC-programmed for any frequency not listed in Table 1 on
page 9, an error tone will sound and an "E" will appear on the display.
7. To readout another channel, repeat steps 4 through 6.
8. Turn the radio OFF and then ON againī¼the radio is now ready to use.
Have questions? Call
800-USA-1-USA
(800-872-1872) or visit our website at www.ritron.com