Uniden UH755 Series Owner's Manual page 19

Operation
Recent Active Channels
SCAN remembers recent active channels and monitors these channels
for activity while scanning through the scan memory. This means if
recently active channels become active again during SCAN, the radio
will pause on these channels first. This makes scanning for active
channels more efficient (faster) the longer SCAN is operating.
Skipping an Active Channel
When paused on an active channel it is not possible to skip this channel
as the recent active channel feature will cause scan to lock back onto
that active channel. Wait for the active channel to become inactive and
SCAN will resume. If you want to avoid an active channel completely,
deactivate SCAN and remove the channel from the scan memory, then
reactivate SCAN.
Priority Channel in GS Mode
In GS mode if SCAN is paused on an active channel that is not the
Priority Channel, and the Priority Channel becomes active, the radio will
switch to the Priority Channel for as long as there is a signal.
2. To deactivate SCAN, press [SCAN] or [MENU].
If SCAN is deactivated while it is tuned to an active channel,
the UH755 will stay on that active channel.
If SCAN is deactivated while in-between active channels,
the UH755 will reinstate the last active channel.
NOTE
If SCAN is deactivated when no active channel has been
found, the UH755 will reinstate the starting channel.
UNIDEN UH755
19
Handheld UHF-CB Transceiver