Product Manual

PAGE 18 INSTRUCTION MANUAL TX3350
Receiving signals in QUIET mode
• If a normal signal is received on an Open channel (one that
is not tagged with ‘Q’) the signal will be heard in the usual
way.
• If a normal signal is received on a Quiet channel, the
icon will be visible showing that the channel is busy, but no
sound will be heard from the speaker.
• If your SelCall Ident is received on any channel – Open or
Quiet – the Quiet mode will be cancelled and the alarm will
beep to alert you to the call. In addition, the caller’s Ident
or ALPHA label will be displayed. All channels will now be
open for normal transmission and reception.
If you wish to respond to the caller using SelCall, press and
hold the CALL button until the radio beeps. The caller’s Ident
will be transmitted back to them causing the alarm in their
radio to be activated.
To cancel the alarm on your radio, briefly press the PTT.
To return your radio to the Quiet mode, briefly press the
key. will re-appear on the display.
Scanning in QUIET mode
The radio will allow you to scan while the Quiet mode is active.
Using this feature you can monitor a group of Quiet channels
or a combination of Quiet and Open channels.
To scan in the QUIET mode
1. Briefly press then to select the required scan
group (Open or Group scan).
2. Store the required channels in the selected scan memory as
described under the Scanning section.
3. From those channels, select the ones you wish to remain
Quiet and tag each one for Quiet operation (press and hold
the key).
4. Select a tagged channel and activate the Quiet mode
(briefly press the key).
5. To start scanning press the key. The radio will begin
scanning and the and flashing icons will be displayed
indicating that the radio is scanning in the Quiet mode.
Receiving signals while scanning in QUIET mode
• If a normal signal is received on an open channel, scanning
will pause while the channel is busy and will resume
scanning 5 seconds after the channel becomes clear. (If you
were scanning in Group Scan mode, the radio may switch
between the open channel and the Priority channel – this
is normal).
• If a normal signal is received on a Quiet channel but your
SelCall Ident is not detected, the signal will be ignored and
scanning will continue.
• If a signal containing your SelCall Ident is received on any
channel – Open or Quiet – both scanning and Quiet modes
will be cancelled and the receiver will stay on that channel. In
addition, the alarm will beep to alert you to the call and the
callers Ident or ALPHA label will be displayed. The channel
will now be open for normal transmission and reception.
TIP: To ensure reliable SelCall detection when scanning in
the Quiet mode, it is recommended that you restrict the
number of channels in the Scan group to 4 or less.
GROUP CALLING
The SelCall system includes a Group Call function which allows
you to call up to 1000 radios simultaneously. This could be useful
in an emergency situation where you may need to transmit a
message to a large number of radios in your group.
By default your radio is factory set to allow up to 10 radios to
be called at once. If required you can arrange for your dealer to
re-program this option to allow 100 or 1000 radios to be called.
The following description assumes the default Group Call setting
of 10 radios.
The Group Call function works by allowing you to enter a special
‘group code’ into the last digit positions of the SelCall Ident you
are sending. The ‘group code’ appears as an ‘A’ when displayed
in the radio. When this ‘group code’ is received, it substitutes
for all other numbers in that position. As long as the first 4 digits
of the SelCall you are sending match those of the radios you are
calling, their SelCall alarm is activated as if their full 5 digit SelCall
Idents had been received.