PA G E 8
i n s t r u c t i o n m A n uA l
t X 4 8 0 0
the Dealer may have a scanning feature programmed
into the radio . if so, the following section describes how
to use this feature .
OVERVIEW
the scanning function allows the radio to step through a
number of selected channels while searching for signals .
if a signal is found, the radio pauses on that channel to
allow the signal to be heard . When the signal has gone,
the radio resumes scanning for further signals . Exactly
how the scanning feature reacts to a signal will depend
on the options programmed into your radio .
in the following section, the working channel (sometimes
called the Priority channel) is defined as the channel
where others would normally expect to be able to contact
you and is most probably where you would do most of
your communicating .
SCAN GROUPS
there are two possible scan groups available . these
are called
Open Scan (OS)
and
Group Scan (GS)
.
the radio may be programmed with either one of these
groups or it may have both groups programmed .
•
Open Scan (OS)
allows any of the programmed
channels to be scanned in an ascending sequence
(i .e . from the lowest channel number to the highest) .
•
Group Scan (GS)
also allows any of the programmed
channels to be scanned in an ascending sequence,
but in addition, it inserts the main working channel
into the scan sequence . the working channel is then
monitored regularly while scanning to ensure that no
calls are missed . Any signal received on the working
channel has priority and will override any signals
received on the other channels .
Selecting a Scan Group
if you have been given the option of selecting scan
groups, one of the function keys on the radio will be
programmed for
OS/GS
selection . the current scan group
is normally displayed in the lower right of the lcD as
OS
for open scan or
GS
for Group scan .
To change the Scan Group
Briefly press the
OS/GS
key . A beep will be heard and
the display will change to indicate the group you
have selected .
NOTE:
if the selected channel is displaying an
alphanumeric label, pressing the
OS/GS
key will cause
the display to change to '
OS
' or '
GS
' briefly, before
returning to the alphanumeric label .
Programming the Working
(Priority) Channel
For the purpose of Group scan, the Working channel is
usually programmed by the Dealer . When programmed,
the working channel becomes the channel of priority in
the Group scan mode .
the working channel is normally stored in channel
memory no .1 . if one of the Function buttons on the radio
has been programmed to allow recall of channel memory
1 and 'recall channel Editing' has been enabled, you can
edit the working channel as follows:
1 . Press the '
Recall Channel Memory 1
' function key
on your radio .
2 . select the required working channel using the channel
selector switch .
3 . Press and hold the '
Recall Channel Memory 1
'
function key until the radio beeps . the channel display
will flash for a moment and the selected working
channel will be saved .
Programming the Scan Channels
Depending on your application, EitHEr:
1 . Your scan channels will have been preprogrammed by
the Dealer .
OR
2 . You will have been given the option to program your
own group of channels .
1 . select the channel you wish to store by pressing the
channel buttons .
2 . Press and HolD the appropriate channel recall key
(F1, F2, F3, F4, F5, F6, A
or
CALL)
. the channel
display will flash for a second or so, then the radio
will beep . the channel is now stored .
3 . repeat steps 1 and 2 to program any other channel
recall keys that may be available .
open scan mode
Group scan mode
SCANNING
