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5
Basic Operation
Setting the Squelch
To set the squelch, you must be in the manual
mode.
No signal should be present when adjusting
squelch.
1. Press
until you do not
hear a signal.
2. Adjust VOLUME
to a comfortable
listening level.
3. Think of Squelch Control as a gate. Turn
SQUELCH fully counter-clockwise. This raises
the “Squelch-Gate” so high that no signals can
get through.
4. Turn SQUELCH fully clockwise until you hear a
hiss. This lowers the “Squelch-Gate” so that
everything gets through - noise, weak signals,
and strong signals.
5. Turn SQUELCH back counter-clockwise just until
the hiss stops. Now the “Squelch Gate” allows
only strong signals through.
Keylock
Keylock prevents accidental key entries during
scanning.
1. To lock the key
pad, press and
hold until the
key symbol
appears.
2.To unlock the key
pad press and
hold until
the key symbol
disappears.
1
• SCAN
• MANUAL
SRCH SLCT
HOLD
7
•
2
5
8
0
3
6
9
E
CLEAR
LIGHT WX L/O
SKIP
PRI
4
• MANUAL
Strong Signals
Medium Signals
Weak Signals
Noise
Strong Signals
Medium Signals
Weak Signals
Noise
Strong Signals
Medium Signals
Weak Signals
Noise
1
• SCAN
• MANUAL
SRCH SLCT
HOLD
4
7
•
2
5
8
0
3
6
9
E
CLEAR
WX L/O
SKIP
PRI
4 460.4250 MHZ
SCAN
1
• SCAN
• MANUAL
SRCH SLCT
HOLD
4
7
•
2
5
8
0
3
6
9
E
CLEAR
WX L/O
SKIP
PRI
4 460.4250 MHZ
SCAN
LIGHT
LIGHT
UBC61 scanner Qk 3/12/02 11:22 AM Page 5