Ritron RIT16-146 Manual Do Utilizador

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OPERATION
page 3
ON-OFF / VOLUME ADJUST
To switch 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
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 flash 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 briefly, 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 8 for details.
RECEIVE
To hear calls from other users - adjust the volume as
desired.  The radio can receive broadcasts as long as
the Push-To-Talk button is not pressed.  Whether or
not you hear these broadcasts depends upon the
squelch settings.
There are four squelch modes that can be used in the
"Display Series" base radio.
Carrier squelch  lets you hear all broadcasts on
your channel strong enough for the radio to detect,
and silences noise.
Tone squelch uses one of the QC or DQC “tone
squelch” formats available on the "Display Series"
base radio.  This allows you to screen out “on-
channel” broadcasts that do not carry the correct
code programmed for the radio.
No squelch disables all squelch operation and
noise will be heard on the speaker.  This allows
you to hear even the weakest broadcasts on your
channel.
2-tone paging can be used in conjunction with
either carrier or tone squelch to block out all calls
except those sent specifically 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.
Once a squelch type has been selected by the user,
all channels will operate in that mode.  The "Display
Series" radio will operate in tone squelch mode when
it is 1st turned on.
To activate carrier squelch - simultaneously press
both of the volume buttons and hold briefly before
releasing.   When carrier squelch is on, the radio emits
a “double beep.”  The radio will now let you hear all
broadcasts on your channel.
QC AND DQC TONE CODES
(Interference Eliminator Codes)
Tone codes filter 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.
FIG-2:  VOLUME LEVEL INDICATOR
FIG-2:  VOLUME LEVEL INDICATOR
FIG-2:  VOLUME LEVEL INDICATOR
FIG-2:  VOLUME LEVEL INDICATOR
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.
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