Service manual

OPERATION
3-22
April 2001
Part No. 001-9800-203
that a call is received before scanning resumes. This
prevents scanning from being delayed for long periods
by lengthy calls. This time can be programmed for
0-60 seconds in 1-second steps. If “0” is programmed,
there is no time limit and the entire message is always
received. If the menu SCN CONT parameter is avail-
able, this feature can be turned on and off by the user
(see Section 3.6.20).
3.7.4 TRANSMITTING IN THE SCAN MODE
When the transmitter is keyed in the scan mode,
programming of the “Scan Revert Mode” radio param-
eter determines if the transmission occurs on the last
selected, last received, or a fixed system/group. In
addition, if the selected system/group changes, this
programming also affects which system/group is
selected when the scan mode is exited by pressing the
SCAN switch.
If the fixed transmit system/group bank parameter
is programmed, it may override the following
programming. Refer to Section 3.7.5 for more infor-
mation. The display usually indicates the system./
group on which a transmission would occur. The
exceptions may be when receiving a call with “last
selected” programmed and when using the fixed
transmit function just mentioned.
The three programmable Scan Revert Mode
configurations are as follows. When an LTR priority
call is received (see Section 3.8.3), this programming
also determines if a transmission occurs on the
displayed or selected group, even if scanning is
disabled.
Last Selected System/Group - Transmissions always
occur on the last system/group that was selected manu-
ally by the CHL (low tier) or Select (high tier) switch.
To respond to a call not on the selected system/group,
one of the following methods can be used:
• Select the system/group of the call manually using
the Select switch.
• Before scanning resumes, exit the scan mode by
pressing the SCAN switch. The system/group of
the call then becomes the selected system/group
and it is not necessary to change it manually.
Last Received - The selected system/group changes to
the system/group of a call. Therefore, you can always
respond to a call without having to manually change
the system/group. To return to the previously selected
system/group, the CHL or Select switch must be used
to manually select it.
Temporary Last Received - The display changes to
the system/group of a call for only the duration of the
scan delay period described in Section 3.7.3. Then
when the delay expires and scanning resumes (if not
disabled, for example, by taking the microphone off-
hook), the selected system/group is again displayed.
Therefore, you can respond to a call without changing
the selected system/group as long as you do so before
scanning resumes.
3.7.5 FIXED TRANSMIT IN SCAN
If a system and group are entered for the “Fixed
System/Group Transmit During Scan” bank parameter,
this programming may
take precedence over the
programming just described. If this is programmed
and the transmitter is keyed while scanning is occur-
ring (“+” or scrolling underline displayed), transmis-
sions always occur on that system/group. In addition,
it becomes the selected system/group.
Since taking the microphone off-hook normally
disables scanning (unless off-hook detection is
disabled), the microphone must usually be on-hook
when the transmitter is keyed. If the transmitter is
keyed with scanning halted or if no system/group is
programmed for this function, the programming
described in the preceding section takes precedence.
3.7.6 SCANNING LTR SYSTEMS
LTR systems are monitored each scan cycle for
only as long as necessary to detect all calls. If fixed
priority or block ID codes are programmed, calls on
those codes are detected regardless of which group is
selected or group scan programming. All that is
required is the system programmed for those codes
must be selected or scanned.
With low tier models, the programmed system/
groups are scanned in system sequence. Scanning is in
display number sequence only if system/groups were
assigned in order. If several positions are programmed