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OPERATION
page
3
ON-OFF/VOLUME
To switch on the radio - press the On/Volume Up button. The radio will beep a number of
times equal to the current channel number. If the radio turns on to the Scan Channel it will
emit the Resume Scan Beep.
To adjust the volume - press the volume up button until you reach the desired level. You
should hear noise and any broadcasts on the channel.
To turn off the radio - press and hold the Off/Volume Down button until two tones sound.
To determine whether the radio is on - press the volume down button. If the radio is on,
noise or activity on the channel is heard.
CHANNEL SELECTION
To change channels - press and release the Channel button. The radio will beep a number
of times equal to the current channel number. Pressing the Channel button again within 3
seconds will increment the channel and the radio will beep the new channel number.
Example:
If you select channel 2, the handheld will beep twice.
If the highest channel number is selected and you press the Channel button, the radio
resets to channel 1.
A one-channel radio will beep only once when you press the Channel button.
If the Scan Channel is selected The radio will emit the Resume Scan Beep.
RECEIVE
To hear calls from other users - adjust the volume as desired. The radio can 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 two types of squelch used in the SST "Four Series" portable. First is carrier
squelch. This lets you hear all broadcasts on your channel strong enough for the radio to
detect, and silences noise. Second is one of the selective signaling or “tone squelch”
formats available on the SST. This allows you to screen out “on-channel” broadcasts that
do not carry the correct code programmed for the radio.
Note:
It is possible that the beginning of a call might be missed while the radio is in battery
saver mode. If this happens, ask the caller to repeat the message.
SELECTIVE SIGNALING SQUELCH
To activate tone squelch - simultaneously press both of the volume buttons.
Hold for a second or two before releasing. When tone squelch is turned on,
the handheld sounds one beep. When carrier squelch is on, the radio emits a
“double beep.”
Note:
If you continue to hold down the volume buttons after the beep (or
double beep), the radio will start beeping repeatedly. This means that squelch
is turned off. Release the buttons. To restore squelch, press and hold both of
the volume buttons until the radio sounds a beep or double beep.
MONITOR
To monitor the channel - press one of the volume control buttons. When you
press the volume up or the volume down button, squelch turns off and all radio
traffic on the channel (and noise) sounds in the speaker.
QUIET CALL 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 com-
municate 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.
TRANSMIT
Normally, you should not transmit until no one is talking on the channel.
To transmit - hold down the Push-To-Talk button and with the radio four inches
away talk into the microphone. Speak in a normal tone, since talking louder will
not improve the listener’s reception.
