Owner`s manual
page 3 RITRON, INC. 1-800-USA-1-USA
(1-800-872-1872)
Have questions? Call
800-USA-1-USA
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1. Place the radio into Program/ Readout Mode by following the instructions in FIG-
7 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: 27
Radio Type: 16
Firmware Revision: 0 1
NOTE: Radio models wih firmware revisions prior to 16.01 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 Selector 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 seperated by a hyphen.
The 1st and 2nd digits indicate the frequency code; see Table 1 on page 11.
The 3rd and 4th digits indicate the tone code; see Table 2 on page 12.
If a 5th digit is diplayed, the channel has been programmed for DQC and the last
three digits indicate the DQC code; see Table 3 on page 12.
6. If the channel is PC-programmed for any frequency not listed in Table 1 on page
11, 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 againī½the radio is now ready to use.
RADIO PROGRAMMING
IMPORTANT
To talk to other users in your group, all
radios must be set to the same frequency
and Interference Eliminator codes.
HOW TO READOUT FIELD PROGRAMMABLE FREQUENCY & TONE CODES
In our example channel 3 of a UHF 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").
FIG-7: HOW TO PLACE THE RADIO IN
PROGRAM/READOUT MODE
3. PRESS & RELEASE -
THE RADIO WILL
START BEEPING
RAPIDLY.
1. PRESS & HOLD UNTIL
THE "RADIO OFF"
TONES ARE HEARD,
THEN RELEASE.
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.
page 9
CHANNEL RADIO IDENTIFICATION
FREQUENCY &
TONE CODES