Owner`s manual
page 3 RITRON, INC. 1-800-USA-1-USA
(1-800-872-1872)
Have questions? Call
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page 3
ON-OFF / VOLUME ADJUST
To turn on the radio - press the On/Volume Up button.
The radio will sound the Channel Beep. If the radio turns
on to the Scan Channel it will emit the Scan Beep. The
radio will turn on to the channel that was selected when it
was last turned off.
To adjust the volume - press the volume up or the volume
down button until you reach the desired level. The display
will show the volume level on a 0-9 scale as long as the
volume button is pressed, and you will hear any received
broadcasts on the channel.
To turn off the radio - press and hold the Off/Volume
Down button until a two tone "turn-off" beep is heard.
For instant turn-off, press the PTT button while holding
the Off/Volume Down button.
CHANNEL SELECTION
To change channels - press and release the Channel
Selector button. The radio will increment the channel,
and the Channel Display will show the new operating
channel. If the highest channel number is selected and
you press the Channel Selector button, the radio resets
to channel 1 and the Channel Beep is heard on the
speaker.
If the Scan Channel is selected - the radio will sound the
Scan Beep and the Channel Display will rapidly ash
the channel numbers as they are scanned. If a signal
is received the channel display will indicate the channel
number, and when the received signal is removed
the radio will wait briey, sound the Scan Beep, then
scanning will resume as normal.
If the Weather Channel is selected - on a VHF radio
the display will light a single segment of the display
that indicates which of the seven NOAA frequencies is
monitored. See the "NOAA Weather Radio" section on
page 7 for details.
RECEIVE
To hear calls from other users - adjust the volume as
desired. The radio can only receive broadcasts while the
Push-To-Talk button is not being pressed. Whether or
not you hear these broadcasts depends upon the squelch
settings.
There are three standard squelch modes that can be
used in the JBS/PBS "D-Series" base station.
• Carrier Squelch
lets you hear all broadcasts on your
channel strong enough for the radio to detect, and si-
lences noise.
• Tone Squelch
uses the QC or DQC "tone squelch”
format available on the JBS/PBS. This allows you to
screen out “on-channel” broadcasts that do not carry
the correct code programmed for the radio.
•
2-Tone Paging can be used in conjunction with
either carrier or tone squelch to block out all calls
except those sent specically to your radio. When the
unique 2-tone sequence programmed into the radio
is decoded, the radio will emit a series of ring tones
similar to a telephone.
When Carrier or Tone Squelch is selected by the user,
all channels will operate in that mode. The JBS/PBS
"D-Series" base station will operate in tone squelch mode
when it is rst turned on.
QC AND DQC TONE CODES
Tone codes lter out static, noise and reduce
unwanted "chatter" on radio channels. When you
operate on a frequency with a tone code, you
screen out most interference. This allows you to
communicate with less interference and to hear only
those users in your radio group.
IMPORTANT!
All radios in the talk group must
operate on the same frequency and tone code.
SQUELCH MODES
To activate Tone Squelch or Carrier Squelch and to
Monitor the channel - you may either simultaneously press
both the On/Up and Down/Off volume buttons and hold briey
before releasing or if the "Z" button is set for the monitor
function (see page 12), then press the "Z" button and release.
To advance to the next squelch mode simultaneously press
both volume buttons or the "Z" button.
1. If the base station emits a SINGLE beep, then
Tone Squelch is turned ON and you will only hear
radio transmissions on that channel with the same
QC or DQC tone codes as your base station.
2. If the base station emits a DOUBLE beep, then you
are in Carrier Squelch and you can Monitor all
broadcasts on the channel. To exit Carrier
Squelch press and hold both volume buttons until
you hear the SINGLE beep.
FIG-2: VOLUME LEVEL INDICATOR
As long as the Volume Up button is held
down the volume will increase and the
display will indicate the volume level as a
number between 0 and 9.
When the Volume Down button is held down the
volume will decrease and the display will indicate the
volume level as a number between 9 and 0.
OPERATION