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UBC61 scanner Qk
3/12/02 11:22 AM Page 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
• MANUAL
1
• SCAN
until you do not
hear a signal.
4
• MANUAL
7
SRCH SLCT
CLEAR
HOLD
•
LIGHT
WX
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.
Strong Signals
Medium Signals
Weak Signals
Noise
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.
Strong Signals
Medium Signals
Weak Signals
Noise
5. Turn SQUELCH back counter-clockwise just until
the hiss stops. Now the "Squelch Gate" allows
only strong signals through.
Strong Signals
Medium Signals
Weak Signals
2
3
Noise
5
6
8
9
Keylock
0
E
Keylock prevents accidental key entries during
scanning.
SKIP
L/O
PRI
1. To lock the key
• SCAN
pad, press and
hold
until the
• MANUAL
key symbol
appears.
SRCH SLCT
HOLD
LIGHT
460.4250
4
SCAN
2. To unlock the key
• SCAN
pad press and
hold
until
• MANUAL
the key symbol
disappears.
SRCH SLCT
HOLD
LIGHT
460.4250
4
SCAN
5
1
2
3
4
5
6
7
8
9
CLEAR
•
0
E
SKIP
WX
L/O
PRI
MH
Z
1
2
3
4
5
6
7
8
9
CLEAR
•
0
E
SKIP
WX
L/O
PRI
MH
Z
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