25CLASSIC MANUAL.qx
Contents
How to Use Your
Cobra 25 LTD CLASSIC
Features ..................................................................................................1
The CB Story .........................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Controls & Indicators ........................................................................A2
Our Thanks to You ..............................................................................A3
Customer Support
Installation
Location .............................................................................................2
Mounting and Connection .........................................................2
Antennas
CB Antenna.......................................................................................6
Marine Installation .........................................................................6
Ignition Noise Interference ............................................................7
Operating Your 25 LTD Classic
Turning On Your CB........................................................................8
Setting Channel Selector .............................................................9
To Receive..........................................................................................10
S-Meter ...............................................................................................11
NB/Off (Noise Blanker) Switch ...................................................12
Bright/Dim Switch ..........................................................................12
CB/WX Switch...................................................................................13
RF Gain Control................................................................................13
Setting Squelch ...............................................................................14
To Transmit........................................................................................16
Setting Dynamike®.........................................................................16
Transmit..............................................................................................17
RF Meter .............................................................................................17
External Speaker .............................................................................18
PA (Public Address) ........................................................................19
ANL (Automatic Noise Limiter) Switch ...................................21
Temporary Mobile Set-Up ...........................................................21
Home and Office Set-Up..............................................................22
How Your CB Can Serve You ...........................................................24
A Few Rules You Should Know ..................................................24
Channel 9 Emergency Messages..............................................24
CB 10 Codes......................................................................................26
Frequency Ranges..............................................................................28
25 LTD Classic Specifications.........................................................29
Warranty Information.......................................................................30
Optional Accessories.........................................................................32
Accessory Order Info.........................................................................33
Trademark Acknowledgement.....................................................34
Features of This Product
• 40 CB Radio Channels
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power Output
• Instant Channel 9
• Front Panel 4-Pin Microphone
Connector
• Switchable Blanker
• Adjustable Dynamike Boost
• Tactile Controls
• 9 Ft Microphone Cord
• RF Gain
For Sales Information
Please Contact
RoadTrucker Inc
(www.RoadTrucker.com)
8312 Sidbury Rd.
Wilmington, NC 28411
(800) 507-0482
(910) 686-4281
For Sales Information Please Contact
1 RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
Installation
Installation
Location
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.
Note
The transceiver is usually mounted to the underside of the dash with the microphone bracket
beside it.
Mounting and
Connection
Before installing the CB radio,
visually check the vehicle’s battery connection to determine
which terminal, positive or
negative, is grounded (positive
is the larger of the two) to the
engine block (or chassis). A
negatively grounded vehicle
has its negative lead grounded
to the chassis.
Mounting and Connection
1
Note
The transceiver is held in the
universal mounting bracket by
two thumbscrews which allow
for adjustment at a convenient
angle.
Hold the radio with the mounting bracket in
the exact desired location. If there is no interference, remove the bracket and use it as a
template to mark the location for the mounting screws.
3
Note
Connect the antenna cable plug to the receptacle marked “ANT” on the back of the unit.
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
The bracket includes two selftapping screws and star washers. The mounting must be
mechanically strong, conveniently located.
2
Drill the holes and secure the bracket.
continued
2
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3
Installation
Installation
Note
Connecting to an accessory fuse
prevents the unit from being left
on accidentally, and also permits operating the unit without
running the engine.
6
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
7
Mount the microphone
bracket on the right side
of the unit (driver’s left)
using two screws supplied. Bracket should be
placed under the dash
so microphone is readily
accessible.
8
Attach the 4-pin microphone cable to
receptacle on the front of the unit and
install unit in bracket securely.
Note
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
4
4
In a negative grounded vehicle, connect the
red lead of the DC power cord to an accessory
12 volt fuse.
5
Connect the black lead to the negative side of
the vehicle. This is usually the chassis. Any convenient location with a good electrical contact
(remove paint) may be used.
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5
Antennas
Ignition Noise Interference
CB Antenna
CB Antenna
Since the maximum allowable power output of
the transmitter is limited by the FCC, the antenna
is critical in affecting transmission distance. Only
a properly matched antenna system will allow
Note
maximum power output. Cobra loaded type
For optimum performance in
antenna models are highly recommended for
passenger cars the ideal anten- most installations. Consult your Cobra dealer for
na location is on the center of
further details, or call 773.889.3087 and speak to
the roof. Second choice is on the a Cobra representative.
center of the trunk.
Note
Because many newer trucks
feature fiberglass door skins,
the outside mirror must be
grounded to the chassis..
Note
3-way Combination Antennas
are also available which allow
operation of all three bands
(AM-FM & CB), using a single
antenna. However, this type of
antenna usually results in less
than normal transmit and
receive range when compared
to a standard-type “Single
Band” CB antenna. Call
773.889.3087 for further information.
1
A standard antenna connector is provided
on the transceiver for easy connection.
Use of a mobile receiver at low signal levels is
normally limited by the presence of electrical
noise. The primary source of noise in automobiles
is from the alternator and ignition system.
Typically, when signal level is adequate, the background noise does not present a serious problem.
Also, when extremely low level signals are being
received, the transceiver may be operated with
the vehicle’s engine turned off. The unit requires
very little current and therefore will not significantly discharge the vehicle’s battery.
Even though the Cobra 25 LTD Classic has an
automatic noise limiter, in some installations ignition interference may be high enough to make
good communications impossible. Many possibilities exist and variations between vehicles require
different solutions. Consult your COBRA dealer or
a 2-way radio technician for help in locating the
source of a severe noise.
Marine Installation
The transceiver will not operate at maximum efficiency in a boat without a ground plate, (unless it
has a steel hull). Before attempting installation ,
consult your dealer for information regarding an
adequate grounding system and prevention of
electrolysis between fittings in the hull and water.
6
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7
Operation
Operation
Turning On
Turning On
Setting Channel
Selector
Setting Channel Selector
Make sure the power cord, antenna and microphone are connected to their proper connectors
before starting.
1
8
1
The CB/PA button should be in the
CB position.
2
Rotate the On/Off Volume knob
a normal listening level.
Select
one of forty channels and adjust
volume. The selected channel is indicated by
the LED readout directly above the channel
selector knob
clockwise to
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9
Operation
To Receive
Operation
S-Meter
S-Meter
To Receive
Swings proportionately to strength of incoming
signal when receiving.
1
Selecting A
Channel
Rotate the
On/Off Volume knob clockwise
the green RT/TX LED and channel display will
be illuminated.
Selecting A Channel
Note
Switch to 9 (Emergency) for
instant access to these channel.
1
10
Switch to
NORMAL to select desired channel.
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11
Operation
NB, OFF
(Noise Blanker)
Switch
Operation
NB, OFF (Noise Blanker) Switch
Note
1
The RF noise blanker is very
effective in reducing repetitive
noises such as ignition interference.
When switched to NB position the RF Noise
Blanker is activated, providing increased noise
filtration.
When switched to OFF position Noise
Blanking Filtration will be turned off.
Bright/Dim Switch
1
Bright/Dim
Switch
Switch to BRT or DIM to control brightness
of the channel indicator and multi-function
meter for day or nighttime driving.
RF Gain Control
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
Note
The RF Gain is used to optimize
reception in weak signal areas.
Turn counterclockwise to reduce
gain.
1
12
Rotate the
RF Gain knob counterclockwise
to reduce gain in strong signal areas. In weak
signal areas turn clockwise to increase gain.
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13
Operation
Operation
Setting Squelch
Gate set to Desired
Squelch Setting (DSS)
Setting Squelch
Squelch is the “control gate” for incoming signals.
Gate closed
STRONG SIGNALS
STRONG SIGNALS
WEAK SIGNALS
NOISE
WEAK SIGNALS
3
1
Full
clockwise rotation closes the gate
allowing only very strong signals to enter.
2
Full
counterclockwise rotation opens the
“gate” allowing all signals in.
To achieve the Desired Squelch Setting (DSS),
turn the Squelch control
counterclockwise
until you hear noise. Now turn the control
clockwise just until the noise stops. This is the
DSS setting.
NOISE
Gate open
STRONG SIGNALS
MEDIUM SIGNALS
WEAK SIGNALS
G AT E
OPEN
NOISE
14
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15
G AT E
MEDIUM SIGNALS
G AT E C L O S E D
MEDIUM SIGNALS
Operation
To Transmit
Operation
Transmit
Transmit
To Transmit
PUSH &
HOLD
Caution!
Be sure the antenna is properly
connected to the radio before
transmitting. Prolonged transmitting without an antenna, or
a poorly matched antenna,
could cause damage to the
transmitter.
Be sure to read the F.C.C. Rules
and Regulations included with
this unit before transmitting.
1
Setting
Dynamike®
Setting Dynamike®
Select desired
channel.
1
This controls the microphone sensitivity
(outgoing audio level).
Push and hold mic button to transmit.
Transmitter is now activated. When transmitting, hold the microphone two inches from
your mouth and speak in a clear, normal voice.
Release to receive.
RF Meter
RF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
1
16
Initially, set fully
clockwise so that maximum voice volume is available. Dynamike®
may have to be reduced in some conditions.
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8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
17
Operation
Operation
External Speaker External Speaker
PA (Public
Address)
PA (Public Address)
The external Speaker jack is used for remote
receiver monitoring.
Note
The external speaker should
have 8-ohm impedance and be
rated to handle at least 4.0
watts. When the external speaker is plugged in, the internal
speaker is automatically disconnected.
Note
Speaker should have 8-ohm
impedance and be rated to
handle at least 4.0 watts.
Note
Note
1
Cobra external speakers are
rated at 10 watts.
1
Connect an external speaker to the external
speaker jack on the rear panel.
The speaker should be directed
away from the microphone to
prevent acoustic feedback.
Connect an external PA speaker to the PA jack
on the rear panel.
Note
When the volume control is
rotated clockwise, activity on
the CB channel will be heard
through the PA speaker.
2
Set
CB/ANL PA switch to PA position.
continued
18
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8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
19
Operation
Temporary Mobile Set-Up
ANL (Automatic Noise Limiter) Switch
PUSH &
HOLD
1
3
Push and hold microphone button and speak
in a normal voice. Your voice will sound on the
PA speaker.
When switched to CB/ANL the Automatic
Noise Limiter is activated. This helps reduce
noise created by the vehicle’s electronics.
Temporary Mobile Operation
For temporary mobile operation you may want to
purchase an optional cigar lighter adapter from
your COBRA dealer. This adapter and a magnetic
mount antenna allow you to quickly “install” your
transceiver for temporary use.
4
20
Temporary
Mobile Set-Up
Adjust PA speaker volume with the
Dynamike control.
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8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
21
Home And Office Set-Up
Base Station
Operation
(From 120V AC
House Current)
Home And Office Set-Up
Base Station Operation
(From 120V AC House Current)
To operate your transceiver from home or office
you will need a 13.8 volt DC Power Pack rated at a
minimum of 2 amps, and a properly installed
base station antenna.
Warning!
Do not attempt to operate this
transceiver by connecting it
directly to 120 vac.
2
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
3
Connect properly installed and matched base
station antenna.
Note
For further information call
Cobra Customer Service
1.773.889.3087.
1
22
Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
23
How Your CB Can Serve You
•
•
•
•
•
•
•
•
•
A Few Rules
You Should
Know
Channel 9
Emergency
Messages
Warn of traffic problems
Provide weather and road data
Provide help in event of an emergency
Provide direct contact with home or office
Assist police by reporting erratic drivers
Get “local information” to find destination
Communicate with family and friends
Suggest spots to eat and sleep
Keep you alert while traveling
How Your CB Can Serve You
The FCC gives these examples of permitted and
prohibited messages for channel 9. These are
only guidelines and not all-inclusive:
Permitted
Example Message
Yes
“Tornado sighted six miles north
of town.”
“Post number 10.
No tornado sighted.”
No
A Few Rules You Should Know
A. Conversations cannot last more than 5 minutes
with another station. A one minute break is
required to let others use the channel.
B. You cannot blast others off the air by use of
illegally amplified transmitters or illegally
high antennas.
C. You cannot use CB to promote illegal activities.
D. Profanity is not allowed.
E. You may not transmit music with a CB.
F. Selling of merchandise and/or services is
prohibited.
Yes
No
Yes
No
Yes
1. Set to channel 9 for emergencies
Be sure antenna is properly connected.
No
2. CB Distress Data
When transmitting an emergency, you should
request a “REACT BASE” and provide the CB
distress data (called CLIP):
Note
C
L
I
P
If no response on channel 9,
try channels 19 or 14.
all Sign
ocation
njuries
roblem
Identify yourself.
Be exact.
Number. Type. Trapped?
Give details and help needed.
Yes
No
“Out of gas on I-95 at mile
marker 211.”
“Out of gas in my driveway.”
“Four car accident on I-94 at
Exit 11. Send police and
ambulance.”
“Traffic moving smoothly on I-94.”
“Weather Bureau has issued
thunderstorm warning.
Bring sailboat into port.”
“Attention motorists.
Weather Bureau advises snow
tomorrow will accumulate
4 to 6 inches.”
“Fire in building at 539 Main,
Evanston.”
“Halloween patrol number 3.
All quiet.”
Transmit CLIP repeatedly so any monitor can assist.
24
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25
How Your CB Can Serve You
CB 10-Codes
CB 10-Codes
Citizen Bands have adopted the “10-CODES” for
standard questions and answers. These codes
provide quick and easy communication, especially
in noisy areas. Following are some of the more
common codes and meanings:
Code
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-11
10-12
10-13
10-16
10-17
10-18
10-19
10-20
10-21
10-22
10-23
10-24
10-25
10-26
10-27
10-28
26
Meaning
Receiving poorly
Receiving well
Stop transmitting
OK, message received
Relay message
Busy, stand by
Out of service, leaving
In service, subject to call
Repeat message
Transmission completed standing by
Talking too rapidly
Visitors present
Advise weather/roads
Make pick up at
Urgent business
Anything for us?
Return to base
My location is
Call by phone
Report in person to
Stand by
Completed last assignment
Can you contact
Disregard last info
Moving to channel
Identify your station
How Your CB Can Serve You
Code
10-29
10-30
10-33
10-34
10-35
10-36
10-37
10-38
10-39
10-41
10-42
10-43
10-44
10-45
10-50
10-60
10-62
10-63
10-64
10-65
10-67
10-70
10-71
10-77
10-81
10-82
10-85
10-91
10-93
10-94
10-99
10-200
Meaning
Time is up for contact
Does not conform to FCC rules
Emergency traffic
Trouble at this station
Confidential information
Correct time is
Wrecker needed at
Ambulance needed
Message delivered
Turn to channel
Traffic accident at
Traffic tie up at
Have a message for
All units within range please report
Break channel
What is next message number?
Unable to copy. Use phone
Net directed to
Net clear
Awaiting your next message/assignment
All units comply
Fire at
Proceed, transmission in sequence
Negative contact
Reserve hotel room for
Reserve room for
My address is
Talk closer to mic
Check my frequency on this channel
Give me a long count
Mission completed, all units secure
Police needed at
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27
Frequency Ranges
25 LTD Classic Specifications
The COBRA 25 LTD Classic transceiver represents
one of the most advanced AM two-way radios used
as a Class D station in the Citizens Radio Service.
This unit features advanced Phase Lock Loop (PLL)
circuitry providing complete coverage of all 40 CB
channels.
Channel
Channel
CB
Freq.
CB
Freq.
Channel In MHz Channel In MHz
1
2
3
4
5
26.965
26.975
26.985
27.005
27.015
21
22
23
24
25
27.215
27.225
27.255
27.235
27.245
6
7
8
9
10
27.025
27.035
27.055
27.065
27.075
26
27
28
29
30
27.265
27.275
27.285
27.295
27.305
11
12
13
14
15
27.085
27.105
27.115
27.125
27.135
31
32
33
34
35
27.315
27.325
27.335
27.345
27.355
16
17
18
19
20
27.155
27.165
27.175
27.185
27.205
36
37
38
39
40
27.365
27.375
27.385
27.395
27.405
GENERAL
CHANNELS . . . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH
FREQUENCY RANGE. . . . . . . . . . . . . . . . CB - 26.965 TO 27.405 MHz
FREQUENCY TOLERANCE . . . . . . . . . . . 0.005 %
FREQUENCY CONTROL . . . . . . . . . . . . PLL (PHASE LOCK LOOP) SYNTHESIZER
OPERATING TEMPERATURE
RANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30° C TO + 50° C
MICROPHONE . . . . . . . . . . . . . . . . . . . . . PLUG-IN DYNAMIC
INPUT VOLTAGE . . . . . . . . . . . . . . . . . . . 13.8VDC nom. (positive or negative ground)
CURRENT DRAIN
TRANSMIT: AM FULL MOD., 1.5A
(MAXIMUM) RECEIVE: SQUELCHED, 0.3A;
FULL AUDIO OUTPUT, 1.2A (NOMINAL)
SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5/8” D X 6-3/8” W X 2-13/64” H
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 lbs.
ANTENNA CONNECTOR . . . . . . . . . . . .UHF; SO-239
SEMICONDUCTORS . . . . . . . . . . . . . . . .33 TRANSISTORS, 28 DIODES,
3 INTEGRATED CIRCUITS
METER . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ILLUMINATED; INDICATES RELATIVE
POWER OUTPUT AND RECEIVED
SIGNAL STRENGTH
TRANSMITTER
POWER OUTPUT . . . . . . . . . . . . . . . . . . .4 WATTS
MODULATION . . . . . . . . . . . . . . . . . . . . . .AM (AMPLITUDE MODULATION)
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 Hz
OUTPUT IMPEDANCE . . . . . . . . . . . . . . .50 OHMS, UNBALANCED
RECEIVER
SENSITIVITY . . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 1 µV FOR 10dB (S+N) /N
SELECTIVITY . . . . . . . . . . . . . . . . . . . . . . .6 dB @ 7 kHz, 60 dB @ 10kHz
IMAGE REJECTION . . . . . . . . . . . . . . . . .80 dB, TYPICAL
ADJACENT-CHANNEL REJECTION . . .60 dB, TYPICAL
IF FREQUENCIES . . . . . . . . . . . . . . . . . . .DOUBLE CONVERSION: 1st: 10.695 MHz
2nd: 455 kHz
AUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 dB CHANGE IN AUDIO
OUTPUT FOR INPUTS FROM 10 TO 50,000
MICROVOLTS
RF GAIN CONTROL . . . . . . . . . . . . . . . . .ADJUSTABLE FOR OPTIMUM SIGNAL
RECEPTION
NOISE BLANKER . . . . . . . . . . . . . . . . . . . .RF TYPE
SQUELCH . . . . . . . . . . . . . . . . . . . . . . . . . .ADJUSTABLE; THRESHOLD LESS THAN 1µV
AUDIO OUTPUT POWER . . . . . . . . . . . .4 WATTS
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 Hz
DISTORTION . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 7% @3 WATTS @ 1000 Hz
BUILT-IN SPEAKER . . . . . . . . . . . . . . . . . .8 OHMS, 5W
EXTERNAL SPEAKER (NOT SUPPLIED) .8 OHMS; DISABLES INTERNAL SPEAKER
WHEN CONNECTED
PA SYSTEM
POWER OUTPUT . . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKER
EXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS, WHEN PA-CB SWITCH IS IN PA,
(NOT SUPPLIED) . . . . . . . . . . . . . . . . . . .THE PA SPEAKER ALSO MONITORS THE
RECEIVER; SEPARATE JACK PROVIDED
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
28
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Limited Two Year Warranty
Cobra Electronics
Corporation
6500 West Cortland Street
Chicago, Illinois 60707
For Products Purchased In The U.S.A.
Cobra Electronics Corporation warrants that its Citizens
Band radio, and the component parts thereof, will be free
of defects in workmanship and materials for a period of
two (2) years from the date of first consumer purchase. This
warranty may be enforced by the first consumer purchaser,
provided that the product is utilized within the U.S.A.
Cobra will, without charge, repair or replace, at its option,
defective radios, products or component parts upon delivery to the Cobra Factory Service department, accompanied by proof of the date of first consumer purchase, such
as a duplicated copy of a sales receipt.
You must pay any initial shipping charges required to ship
the product for warranty service, but the return charges
will be at Cobra’s expense, if the product is repaired or
replaced under warranty. This warranty gives you specific
legal rights, and you may also have other rights which
may vary from state to state.
Exclusions: This limited warranty does not apply:
1. To any product damaged by accident.
2. In the event of misuse or abuse of the product or as a
result of unauthorized alterations or repairs.
3. If the serial number has been altered, defaced, or
removed.
4. If the owner of the product resides outside the U.S.A.
All implied warranties, including warranties of merchantability and fitness for a particular purpose are limited
in duration to the length of this warranty. Cobra
shall not be liable for any incidental, consequential or
other damages; including, without limitation, damages
resulting from loss of use or cost of installation.
Some states do not allow limitations on how long an
implied warranty lasts and/or do not allow the exclusion
or limitation of incidental or consequential damages, so
the above limitations may not apply to you.
For Products Purchased Outside The U.S.A.
Please contact your local dealer for warranty information.
You must pay any initial shipping charges required to ship
the product for warranty service, but the return charges
will be at Cobra's expense, if the product is repaired or
replaced under warranty.
30
Optional Accessories
Replacement DC Power Cord
For in vehicle use
426-002-N-001
Replacement Microphone
Bracket
For in vehicle use
741-080-9-001
Replacement Mounting
Bracket
For in vehicle use
251-199-9-001
Replacement Thumb Screws
For in vehicle use
634-081-9-001
21” Base Loaded Magnet
Mount Antenna
38” Base Loaded Magnet
Mount Antenna
HG A1000
HG A1500
Replacement Dynamic
Microphone
For in vehicle use
CA 73
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
31
OptionalAccessories
Accessory Order Info
Ordering From U.S.A.
Call 773-889-3087 for pricing or
visit www.cobra.com.
For Credit Card Orders
4 Pin Replacement Dynamic
Microphone
HG M73
Power Microphone
HG M75
4 Pin Noise Canceling
Microphone
HG M77
Call 773-889-3087 [Press one from
the main menu] 8:00 a.m. to
5:30 p.m. Central Time, Monday
through Friday.
Make Check or Money Order
Payable To
Cobra Electronics, Attn: Accessories
Dept., 6500 West Cortland Street,
Chicago, IL 60707 U.S.A.
Dynamic External Speaker
HG S100
Noise Canceling External
Speaker
HG S300
Noise Canceling With Talk
Back External Speaker
HG S500
Item #
Description
426-002-N-001
Replacement DC Power Cord
251-353-9-001
Replacement Mounting Bracket
634-081-9-001
Replacement Thumb Screws
741-080-9-001
Replacement Microphone Bracket
HG A1000
21” Base Loaded,
Magnetic Mount Antenna
HG A1500
38” Base Loaded,
Magnetic Mount Antenna
HG M84
4 Pin Premium Noise-Cancelling
Microphone
HG M84W
4 Pin Premium Noise-Cancelling
Microphone (Wood Grain)
HG M73
4 Pin Replacement Dynamic
Microphone
HG M77
4 Pin Noise-Cancelling
Microphone
HG M75
Power Microphone
HG S100
Dynamic External Speaker
HG S300
Noise-Cancelling External Speaker
HG S500
Noise-Cancelling with Talk Back
External Speaker
To Order Online
Please visit our website:
www.cobra.com
Optional Accessories
You can find quality Cobra products and
accessories at your local Cobra dealer, or in the
U.S.A., you can order directly from Cobra.
See ordering info on page 33.
32
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
33
Trademark Acknowledgement
Cobra®, Dynamike®, Nothing Comes Close to a Cobra® and the snake design are
registered trademarks of Cobra Electronics Corporation, USA.
Cobra Electronics Corporation™ is a trademark of Cobra Electronics
Corporation, USA.
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
34
25 LTD Classic
The CB Story
The Citizens Band lies between the shortwave
broadcast and 10-meter Amateur radio bands,
and was established by law in 1949. The Class D
two-way communications service was opened in
1959. (CB also includes a Class A citizens band
and Class C remote control frequencies.)
The Cobra Electronics Corporation™
line of quality products includes:
CB Radios
microTALK® Radios
Radar/Laser Detectors
Operating Instructions
for your Cobra 25 LTD Classic
2
1
CB Radio
Safety Alert® Traffic Warning Systems
HighGear® Accessories
FCC Regulations
FCC regulations permit only “transmissions”
(one party to another) rather than “broadcasts”
(to a wide audience). Thus, advertising is not
allowed on CB Channels because that is “broadcasting.”
CobraMarine® VHF Radios
FCC Warnings
Power Inverters
All transmitter adjustments other than those
supplied by the manufacturer as front panel
operating controls, must be made by, or under
the supervision of, the holder of an FCC-issued
general Radio-Telephone Operator’s License.
Accessories
3
For more information or to
order any of our products,
please visit our website:
www.cobra.com
Replacement or substitution of transistors, regular
diodes or other parts of a unique nature, with
parts other than those recommended by Cobra,
may cause violation of the technical regulations
of Part 95 of the FCC Rules, or violation of Type
Acceptance requirements of Part 2 of the Rules.
4
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL 60707
25 LTD Classic
Operating Instructions
for your Cobra 25 LTD Classic
CB Radio
©2010 Cobra Electronics Corporation
Printed in China
Part No. 545-023-N-001 Version F
What’s Included with Your 25 LTD Classic
5
CB/
ANL
PA
NB
25 LTD CLASSIC
OFF
DIM
DYNAMIKE
MIN
CH9
RX / TX
BRT
NORMAL
RF GAIN
MIN
MAX
©2009 Cobra Electronics Corporation
Printed in China
Part No. 545-023-N-001 Version C
Nothing Comes Close to a Cobra®
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
You should read and understand Part 95 (included
with this unit) of the FCC Rules and Regulations,
before operating your Cobra radio, even though
the FCC no longer requires you to obtain an operator’s license.
Nothing Comes Close to a Cobra®
1.
2.
3.
4.
5.
CB transceiver
Microphone
Transceiver bracket
Microphone bracket
Operating Manual
6. DC power cord
7. FCC rules
1. (not shown)
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
A1
8312 Sidbury Rd.; Wilmington,
NC 28411 - (800) 507-0482 / (910) 686-4281
Controls and Indicators
Our Thanks to You
Thank you for purchasing the Cobra 25 LTD Classic
CB Radio. Properly used, this Cobra product will give
you many years of reliable service.
1. 4-Pin Microphone Connector
2. Power On/Off/Volume/
Squelch
13
Customer Assistance
Should you encounter any problems with this product, or not understand its many features, please
refer to this owner’s manual. If you require further
assistance after reading this manual, Cobra
Electronics offers the following customer assistance
services:
3. Dynamike
4. RF Gain
5. Channel Selector
6. LED Channel Display
7. RX (Receive)/ TX (Transmit)
LED Indicator
For Assistance in the U.S.A.
Automated Help Desk English only, 24 hours a day,
seven (7) days a week 773-889-3087 (phone).
8. Channel 9/ Normal Switch
9. Dimmer Switch
10. NB/Off Switch
11 10 9
11. CB/ANL PA Switch
12. Signal Strength Meter
13. Microphone
Notes
8
7
6
12
Back Side
For Sales Information Please Contact
Customer Assistance Operators English
and Spanish.
8:00 a.m. to 5:30 p.m. Central Time Mon. through Fri.
(except holidays) 773-889-3087 (phone).
Questions English and Spanish.
Faxes can be received at 773-622-2269 (fax).
14. Public Address Jack
15. External Speaker Jack
1
2
3
4
Technical Assistance English only.
www.cobra.com (online: Frequently Asked Questions).
English and Spanish. productinfo@cobra.com (e-mail).
5
16. Antenna Connector
17. Power Jack
14
16
A2
RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.
Wilmington, NC 28411
(800) 507-0482 / (910) 686-4281
15
For Assistance Outside the U.S.A.
Contact Your Local Dealer
17
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
A3
35
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