GME TX3420 - Manual (Page 12)

PA G E 1 2 i n s t r u c t i o n m A n uA l t X 3 4 2 0
2 . briefly press the F key followed by the Quiet key .
‘quiEt’ will disappear from the display and all channels
that were tagged for quiet operation will now operate
normally again .
receiving signals in Quiet mode
• if a normal signal is received on a quiEt channel, the
channel will appear busy (the ‘busy’ indicator will be
visible) but no sound will be heard from the speaker .
this means you will not be disturbed by the signal .
• 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 signal containing your selcall ident is received
on any channel (open or quiEt) quiEt mode will be
cancelled and the alarm will beep to alert you to the
call . in addition, the caller’s ident or AlPhA name will
be displayed . All channels will now be open for normal
transmission and reception .
if you wish to respond to the calling radio using selcall,
press and hold the call key for 1 .5 seconds until the radio
beeps . the callers 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 key .
to return your radio to the Quiet mode
briefly press the F key followed by the Quiet key . ‘quiEt’
will re-appear on the display .
scaNNiNg iN Quiet moDe
the tX3420 will allow you to scan while 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 Quiet mode:
1 . Pre-select the scan mode .
2 . select the channels you wish to scan and store them in
the scan memory .
3 . from those channels, select the ones you wish to remain
quiet and tag each one for quiEt operation .
4 . select a tagged channel and activate quiEt mode
(press the F key followed by the Quiet key) .
5 . Press the scaN key . the radio will begin scanning
and ‘scAn’ and ‘quiEt’ will be displayed, indicating
the radio is scanning in 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 caller’s ident or AlPhA name 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 tX3420’s selcall system includes a Group call function
which allows you to call up to 1000 radios simultaneously .
this can 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 your application requires more,
you can arrange for your retailer 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 position of the selcall
ident you are sending . the ‘group code’ appears as ‘A’ when
displayed in the radio . When this ‘group code’ is received, it
substitutes for all other numbers in the last digit 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
will be activated as if their full 5 digit selcall idents had
been received .
to achieve this, the 10 radios you are calling must be
programmed with sequentially numbered selcall idents .
e .g . 12330, 12331, 12332, 12333 . . --> , 12339
• transmitting the selcall ident 12331 will only activate the
alarm in the radio with the selcall ident of 12331 .