Uniden UBCT8 - Manual (Page 57)

Troubleshooting
If your UBCT8 is not performing properly, try the following steps.
Problem Suggestion
1. Check the connections at both ends of the AC Adapter.
2. Turn ON the wall switch of your room. You could be using an
outlet controlled by the wall switch.
3. Move the AC Adapter to another wall outlet.
1. Check the antenna connection.
2. Move the scanner.
3. You may be in a remote area which could require an optional
multi-band antenna. Check with your dealer or local
electronics store.
1. Adjust squelch threshold - refer to page 14, "Setting the
Squelch".
2. Check the antenna connection.
3. Check to see if many of the channels are Locked Out.
If so, the scanner has less chance of finding an active
channel.
4. Review each channel's frequency to see if it is still stored in
Memory and is correct.
5. It's possible that none of the programmed frequencies are
currently active.
1. Press key again.
2. Adjust the control.
3. Check to see if all channels are Locked Out.
SCAN
SQL
Scanner won't work.
Improper reception.
Scan won't stop.
Scan won't start.