Scan Limitations; Scan Lock Out; Revert Operation; Tac Operation - Uniden SMU250KTS User Manual

• MENU Scan Activation - press and release the MENU key to
display the current scan condition. Press the Up- or Down-
select keys to select the desired condition (SCAN OFF, SCAN
GRP or SCAN SYS). The LCD SC indicator will be displayed
continuously when talk group scan is active and blink when
system scan is selected. Exit menu operation by pressing the
MENU or MON/EXIT keys.
• A/B/C Key Scan Activation - press and release the A, B or C
key to activate scan of all talk groups in the selected system.
The LCD SC indicator will be displayed to indicate talk group
scan. Press and hold the key for 2 seconds to activate scan of
all systems, indicated by the flashing SC icon. To deactivate
either talk group or system scan operation, press and release
the A, B or C key.
2. If scan priority is programmed, receipt of the priority talk group
(first talk group in the selected system) will be accompanied by
sounding of the Priority Tone. After the first group, the order of
priority is group 2, the selected group, then the balance of the
groups in the selected system in the programmed order.

Scan Limitations

• System Scan - If System Scan is activated from an LTR talk-
group, all trunking systems (but no conventional systems) will
be scanned. If TAC operation has been activated from the
Menu or A/B key, only the TAC repeater and TAC ID of each
trunking system will be scanned. If a pre-programmed TAC
talk-group was selected when scan was started, that TAC
repeater and the home repeaters of all trunking systems will be
scanned. Similarly, activating System Scan from a
conventional talk-group will cause only conventional systems
to be scanned.
• Group Scan - All talk-groups in the selected trunking
system will be scanned during Group Scan. However, if
TAC is in operation, Group Scan in a trunking system cannot
be activated. In a conventional system, Croup Scan will scan
all programmed channels.
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Scan Lock Out

Individual talk groups or complete systems can be locked out of the
scan list at any time.
• Talk Group Lock Out - press and release the L/O key to lock
out the currently selected talk group. The L/O icon will be
displayed to indicate the lockout condition. Press and release
the L/O key again to restore the selected talk group to the
scan list.
• System Lock Out - press and hold the L/O key for 2 seconds
on any talk group in the system. The L/O icon will blink when
any talk group in that system is selected, regardless of whether
that group has been individually locked out. Press and release
the L/O key on any talk group in a locked out system to restore
the system to the scan list.

Revert Operation

During scan operation, the active talk group selection may change
depending on the revert programming.
• Last Talk Group Revert - the received talk group becomes the
active talk group.
• Talkback Revert - the received talk group becomes the active
talk group only if the PTT is pressed during the dropout delay
time (period before scan resumes).
• No Revert - Operation will take place on the received talk-
group as long as the PTT is pressed within the dropout delay
time, but will return to the selected talk-group when the DOD
time is allowed to expire.
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