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12
Operation
UNIDEN UH820SX-NB/UH820SX-2NB
UHF CB Radio
Power On/Off
1. Press and hold
1
2
3
4
5
6
7
8
9
10
11
12
13
MHS050
22
CHARGING CRADLE
14
15
16
19
20
18
21
LIQUID CRYSTAL DISPLAY
17
SCAN
TRI
TX
MEM
LOCK
LO HI
to turn
the radio ON.
A channel number and battery level
should appear on the display.
2. Press and hold
1
2
3
4
5
6
7
8
9
10
11
12
13
MHS050
22
CHARGING CRADLE
14
15
16
19
20
18
21
LIQUID CRYSTAL DISPLAY
17
SCAN
TRI
TX
MEM
LOCK
LO HI
to turn
the radio OFF
NOTE
Power Off feature is not available
in Menu mode. Exit Menu mode
to use Power off feature.
Volume
The volume level can be adjusted from 0
(no volume) to 7 (maximum volume).
1. Press
(vol)
or to increase or
decrease the volume level.
U
and the current
volume level will flash on the display.
Setting The Squelch
The squelch is used to eliminate any annoying background noise when there
are no signals present.
Sq 1 - max sensitivity (min squelch)
Sq 2 - min sensitivity (max/tight squelch)
1. Press
(sql)
momentarily.
Sq
and the current
squelch level will flash on the display.
2. Press
(sql)
while the squelch level shows to
change the squelch level between 1 and 2.
3. The squelch setting mode automatically saves
and exits after 2 seconds of inactivity.
TX
RX
GS
SCAN
M
BCL
VOX
HI
PRI
C
D
FULL
M
Power On/Off
M
Volume
M
Squelch
M
Selecting a Channel
TX
M
To Transmit
and Receive - 1
RX
M
To Transmit and
Receive - 2
To Operate In Duplex
Mode (Repeaters) - 1
To Operate In Duplex
Mode (Repeaters) - 2
HI
Transmit Power - 1
HI
Transmit Power - 2
GS
M
Scanning
RX
SCAN
M
Open Scan (OS) Mode
GS
Group Scan (GS) Mode
RX
M
Monitor
TX
RX
GS
SCAN
M
BCL
VOX
HI
PRI
C
D
FULL
M
Power On/Off
M
Volume
M
Squelch
M
Selecting a Channel
TX
M
To Transmit
and Receive - 1
RX
M
To Transmit and
Receive - 2
To Operate In Duplex
Mode (Repeaters) - 1
To Operate In Duplex
Mode (Repeaters) - 2
HI
Transmit Power - 1
HI
Transmit Power - 2
GS
M
Scanning
RX
SCAN
M
Open Scan (OS) Mode
GS
Group Scan (GS) Mode
RX
M
Monitor
TX
RX
GS
SCAN
M
BCL
VOX
HI
PRI
C
D
FULL
M
Power On/Off
M
Volume
M
Squelch
M
Selecting a Channel
TX
M
To Transmit
and Receive - 1
RX
M
To Transmit and
Receive - 2
To Operate In Duplex
Mode (Repeaters) - 1
To Operate In Duplex
Mode (Repeaters) - 2
HI
Transmit Power - 1
HI
Transmit Power - 2
GS
M
Scanning
RX
SCAN
M
Open Scan (OS) Mode
GS
Group Scan (GS) Mode
RX
M
Monitor
1
2
3
4
5
7
8
12
13
14
15
17
18
11
6
9
16
10
UH820SX-NB
19
CHARGING CRADLE
20