Cobra 29 LTD ST Manuale utente
Installation
Location
Mounting and
Connection
Mounting and Connection
Hold the radio with the mounting bracket in
the exact desired location. If there is no inter-
ference, remove the bracket and use it as a
template to mark the location for the mount-
ing screws.
Location
Plan location of transceiver and microphone
bracket before starting the installation.
Select a location that is convenient for operation,
yet does not interfere with the driver or passenger.
The transceiver is usually mounted to the under-
side of the dash with the microphone bracket
beside it.
Note
The transceiver is held in the
universal mounting bracket by
two thumbscrews which allow
for adjustment at a convenient
angle.
The bracket includes two self-
tapping screws and star wash-
ers.The mounting must be
mechanically strong, conve-
niently located.
Drill the holes and secure the bracket.
2
1
Installation
Connect the antenna cable plug to the recep-
tacle marked “ANT” on the back of the unit.
3
Note
Before installing the CB radio,
visually check the vehicle’s
battery connection to deter-
mine which terminal, positive
or negative,is grounded (pos-
itive is the larger of the two)
to the engine block (or chas-
sis). A negatively grounded
vehicle has its negative lead
grounded to the chassis.
Note
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
ANT PA.SP. EXT.SP.
+POWER –
DATE OF
MFG :JUNE 98 FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
SERIAL NO.:806135776
PRECISION ENGINEERED PRODUCT OF
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707
Installation
Note
Connecting to an accessory fuse
prevents the unit from being left
on accidentally, and also per-
mits operating the unit without
running the engine.
Note
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
In a negative grounded vehicle, connect the
red lead of the DC power cord to an accessory
12 volt fuse.
Connect the black lead to the negative side of
the vehicle.This is usually the chassis. Any con-
venient location with a good electrical contact
(remove paint) may be used.
4
5
Installation
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
Mount the microphone
bracket on either side of
the unit (driver’s left)
using two screws sup-
plied. Bracket should be
placed under the dash
so microphone is readily
accessible.
6
7
Attach the 4-pin microphone cable to
receptacle, on side of unit and install unit on
bracket securely.
8
ANT PA.SP. EXT.SP.
+POWER –
FCC ID:BBO3K229LTD
COBRA
MADE IN CHINA
PRECISION ENGINEERED PRODUCT OF
. CHICAGO, ILL.60707
SIG 1 3 5 7 9 +30dB
2 3 CAL
RF
SWR
RF
DYNAMIKE
RFGAIN D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
C
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
The CB/PA button should be in the
CB position.
Operation
Turning On
Turning On
Make sure the power cord, antenna and micro-
phone are connected to their proper connectors
before starting.
2
DYNAMIKE RFGAIN D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
B
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CALSWR
RF
1
Rotate the On/Off Volume knob clockwise to
a normal listening level.
RF
DYNAMIKE RFGAIN
DELTATUNE S
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
R
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
Operation
Setting Channel
Selector
Setting Channel Selector
Select one of forty channels and adjust
volume.The selected channel is indicated by
the LED readout directly above the channel
selector knob
1
RFGAIN DELTATUNE SWR CAL
S
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MAX MIN MAX
S
E
RFGAIN DELTATUNE SWR CAL
S
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MMAX MIN MAX
S
Operation
Calibrate For
SWR (Standing
Wave Ratio)
Note
Antenna Indicator LED will
illuminate when TX if SWR is
high.
Switch to the CAL position.
2
1
Calibrate for SWR (Standing Wave Ratio)
SWR calibration is done to properly adjust the
length of the antenna and to monitor the quality
of the coaxial cable and all RF connections.
This calibration is critical in order to achieve opti-
mum performance.
DYNAMIKE RFGAIN D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
B
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
Select channel 20.
Operation
Note
Calibration must be made in an
open area (never in a garage).
Vehicle doors must be closed.
No one should be standing near
the antenna.(See your antenna
directions for more complete
information).
continued
Push and hold mic button.
3
PUSH &
HOLD
While holding mic
button adjust the
SWR CAL knob so the
meter needle swings
to the CAL ▼mark on
the meter (located on the right).
4
RFGAIN DELTATUNE SWR CAL
S
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
RX/TX
MAX MIN MAX
S
SIG 1 3 5 7 9 +30dB
2 3 CALSWR
RF
Operation
Note
The reading will be slightly high-
er on Channels 1 and 40 com-
pared to Channel 20.
Note
When switched to SWR position
the meter needle should ideally
be as far to the left as possible.
Anything over 3 is not accept-
able. A slight antenna height
adjustment (higher or lower)
may be required.Repeat relcali-
bration steps.
Repeat the same steps two through five on
Channel 1 and 40.This will check SWR for all
channels.
6
While still holding down the mic button, set
the S/RF SWR CAL switch to the SWR position,
to read the SWR reading.
5
DYNAMIKE RFGAIN D
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
B
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
Operation
Rotate the On/Off Volume knob clockwise
the green RT/TX LED will be illuminated.
To Receive
1
RF
DYNAMIKE RFGAIN DELTATUNE
S
S/RF
SWR
CAL
NB/
ANL
ANL
OFF
CB
PA
BRT
DIM
CH9
NOR
R
MIN MAX MIN MAX
SQUELCH
OFF
VOLUME
SIG 1 3 5 7 9 +30dB
2 3 CAL
SWR
RF
To Receive
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2
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