Cobra 25 LTD Classic Operating instructions

How to Use our
Cobra 25 LTD CLASSIC
Contents
Features ..................................................................................................1
The CB Story .........................................................................................A1
FCC Regulations
FCC Warnings
ncluded Accessories
Controls & Indicators ........................................................................A2
Our Thanks to You ..............................................................................A3
Customer Support
Installation
Location .............................................................................................2
Mounting and Connection .........................................................2
Antennas
CB Antenna.......................................................................................6
Marine nstallation .........................................................................6
Ignition oise 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
F atur s of This Product
• 40 CB Radio Channels
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power utput
• Instant Channel 9
• Front Panel 4-Pin Microphone
Connector
• Switchable Blanker
• Adjustable Dynamike Boost
• Tactile Controls
• 9 Ft Microphone Cord
• RF Gain
1
For Sales Information
Please Contact
RoadTrucker Inc
(www.RoadTrucker.com)
8312 Sidbury Rd.
Wilmington, NC 28411
[phone]
[phone]
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Installation
Installation
Location
32
Mounting and
Connection
Mounting and Connection
Hold the radio with the mounting bracket in
the exact desired location. f 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.
Not
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.
continued
Drill the holes and secure the bracket.
2
1
Connect the antenna cable plug to the recep-
tacle marked “ANT” on the back of the unit.
3
Not
B for installing th CB radio,
visually ch ck th v hicl ’s bat-
t ry conn ction to d t rmin
which t rminal, positiv or
n gativ , is ground d (positiv
is th larg r of th two) to th
ngin block (or chassis). A
n gativ ly ground d v hicl
has its n gativ l ad ground d
to th chassis.
Not
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Installation
Installation
54
Not
Connecting to an accessory fuse
prevents the unit from being left
on accidentally, and also per-
mits operating the unit without
running the engine.
Not
In positive ground vehicles the
red wire goes to the chassis and
the black wire is connected to
the ignition switch.
n 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
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
Mount the microphone
bracket on the right 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
8Attach the 4-pin microphone cable to
receptacle on the front of the unit and
install unit in bracket securely.
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Ignition Noise Interference
Antennas
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 back-
ground 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 signifi-
cantly discharge the vehicle’s battery.
Even though the Cobra 25 LTD Classic has an
automatic noise limiter, in some installations igni-
tion interference may be high enough to make
good communications impossible. Many possibil-
ities 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.
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
maximum power output. Cobra loaded type
antenna models are highly recommended for
most installations. Consult your Cobra dealer for
further details, or call 773.889.3087 and speak to
a Cobra representative.
Marine Installation
The transceiver will not operate at maximum effi-
ciency 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.
CB Antenna
7
Not
For optimum performance in
passenger cars the ideal anten-
na location is on the center of
the roof. Second choice is on the
center of the trunk.
Not
Because many newer trucks
feature fiberglass door skins,
the outside mirror must be
grounded to the chassis..
Not
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 infor-
mation.
6
1A standard antenna connector is provided
on the transceiver for easy connection.
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

The CB/PA button should be in the
CB position.
Operation
9
Operation
Turning On Setting Channel
Selector
8
Turning On
Make sure the power cord, antenna and micro-
phone are connected to their proper connectors
before starting.
Setting Channel Selector
2
1
Rotate the On/Off Volume knob clockwise to
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
1
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Rotate the On/Off Volume knob clockwise
the green RT/TX LED and channel display will
be illuminated.
Operation
11
Operation
10
S-Meter
S-Meter
Swings proportionately to strength of incoming
signal when receiving.
Switch to NORMAL to select desired channel.
1
Selecting A
Channel
Selecting A Channel
Not
Switch to 9 (Emergency) for
instant access to these channel.
To Receive
1
To Receive
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

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.
Operation
Operation
1312
NB, OFF
(Noise Blanker)
Switch
RF Gain Control
Bright/Dim
Switch
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
Bright/Dim Switch
Not
The RF Gain is used to optimize
reception in weak signal areas.
Turn counterclockwise to reduce
gain.
Not
The RF noise blanker is very
effective in reducing repetitive
noises such as ignition interfer-
ence.
Switch to BRT or D M to control brightness
of the channel indicator and multi-function
meter for day or nighttime driving.
Rotate the RF Gain knob counterclockwise
to reduce gain in strong signal areas. n weak
signal areas turn clockwise to increase gain.
1
B, OFF ( oise Blanker) Switch
1
1
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Full clockwise rotation closes the gate
allowing only very strong signals to enter.
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.
Setting Squelch
Squelch is the “control gate” for incoming signals.
1514
Operation Operation
2
1
3
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS

GATE CLOSED
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS

G AT E  OPEN
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS

NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
G AT E
Gat op n
Gat s t to D sir d
Squ lch S tting (DSS)
Gat clos d
Setting Squelch
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Setting Dynamike®
This controls the microphone sensitivity
(outgoing audio level).
To Transmit
17
To Transmit
16
Setting
Dynamike®
Caution!
Be sure the antenna is properly
connected to the radio before
transmitting. Prolonged trans-
mitting 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.
Operation Operation
1
Select desired channel.
1
nitially, set fully clockwise so that maxi-
mum voice volume is available. Dynamike®
may have to be reduced in some conditions.
Transmit
Push and hold mic button to transmit.
Transmitter is now activated. When transmit-
ting, hold the microphone two inches from
your mouth and speak in a clear, normal voice.
Release to receive.
1
PUSH &
HOLD
Transmit
RF Meter
RF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Operation
Operation
19
18
PA (Public
Address)
PA (Public Address)
Connect an external PA speaker to the PA jack
on the rear panel.
Not
Speaker should have 8-ohm
impedance and be rated to
handle at least 4.0 watts.
Not
The speaker should be directed
away from the microphone to
prevent acoustic feedback.
Not
When the volume control is
rotated clockwise, activity on
the CB channel will be heard
through the PA speaker.
1
Set CB/ANL PA switch to PA position.
2
External Speaker
External Speaker
The external Speaker jack is used for remote
receiver monitoring.
Not
The external speaker should
have 8-ohm impedance and be
rated to handle at least 4.0
watts. When the external speak-
er is plugged in, the internal
speaker is automatically discon-
nected.
Not
Cobra external speakers are
rated at 10 watts. Connect an external speaker to the external
speaker jack on the rear panel.
1
continued
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Temporary Mobile Set-Up
Operation
21
20
Temporary
Mobile Set-Up
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.
A L (Automatic oise Limiter) Switch
When switched to CB/ANL the Automatic
Noise Limiter is activated. This helps reduce
noise created by the vehicle’s electronics.
1
Push and hold microphone button and speak
in a normal voice. Your voice will sound on the
PA speaker.
Adjust PA speaker volume with the
Dynamike control.
3
4
PUSH &
HOLD
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Home And Office Set-Up
23
Base Station
Operation
(From 120V AC
House Current)
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.
Home And Office Set-Up
22
Warning!
Do not attempt to operate this
transceiver by connecting it
directly to 120 vac.
Not
For further information call
Cobra Customer Service
1.773.889.3087.
1
Connect properly installed and matched base
station antenna.
Simply connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
2
3
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

How our CB Can Serve ou
How our CB Can Serve ou
2524
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.”
No “Post number 10.
No tornado sighted.”
Yes “Out of gas on -95 at mile
marker 211.”
No “Out of gas in my driveway.”
Yes “Four car accident on -94 at
Exit 11. Send police and
ambulance.”
No “Traffic moving smoothly on -94.”
Yes “Weather Bureau has issued
thunderstorm warning.
Bring sailboat into port.”
No “Attention motorists.
Weather Bureau advises snow
tomorrow will accumulate
4 to 6 inches.”
Yes “Fire in building at 539 Main,
Evanston.”
No “Halloween patrol number 3.
All quiet.”
1. Set to channel 9 for emergencies
Be sure antenna is properly connected.
2. CB Distress Data
When transmitting an emergency, you should
request a “REACT BASE” and provide the CB
distress data (called CLIP):
Call Sign Identify yourself.
Location Be exact.
Injuries Number. Type. Trapped?
Problem Give details and help needed.
Transmit CLIP repeatedly so any monitor can assist.
Channel 9
Emergency
Messages
Not
If no response on channel 9,
try channels 19 or 14.
• 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
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.
A Few Rules
ou Should
Know
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

How our CB Can Serve ou
How our CB Can Serve ou
2726
Code Meaning
10-29 Time is up for contact
10-30 Does not conform to FCC rules
10-33 Emergency traffic
10-34 Trouble at this station
10-35 Confidential information
10-36 Correct time is
10-37 Wrecker needed at
10-38 Ambulance needed
10-39 Message delivered
10-41 Turn to channel
10-42 Traffic accident at
10-43 Traffic tie up at
10-44 Have a message for
10-45 All units within range please report
10-50 Break channel
10-60 What is next message number?
10-62 Unable to copy. Use phone
10-63 Net directed to
10-64 Net clear
10-65 Awaiting your next message/assignment
10-67 All units comply
10-70 Fire at
10-71 Proceed, transmission in sequence
10-77 Negative contact
10-81 Reserve hotel room for
10-82 Reserve room for
10-85 My address is
10-91 Talk closer to mic
10-93 Check my frequency on this channel
10-94 Give me a long count
10-99 Mission completed, all units secure
10-200 Police needed at
CB 10-Codes
Citizen Bands have adopted the “10-C DES” 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 Meaning
10-1 Receiving poorly
10-2 Receiving well
10-3 Stop transmitting
10-4 OK, message received
10-5 Relay message
10-6 Busy, stand by
10-7 Out of service, leaving
10-8 n service, subject to call
10-9 Repeat message
10-10 Transmission completed standing by
10-11 Talking too rapidly
10-12 Visitors present
10-13 Advise weather/roads
10-16 Make pick up at
10-17 Urgent business
10-18 Anything for us?
10-19 Return to base
10-20 My location is
10-21 Call by phone
10-22 Report in person to
10-23 Stand by
10-24 Completed last assignment
10-25 Can you contact
10-26 Disregard last info
10-27 Moving to channel
10-28 dentify your station
CB 10-Codes
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

25 LTD Classic SpecificationsFrequency Ranges
2928
GE ERAL
CHANNELS . . . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH
FREQUENCY RANGE. . . . . . . . . . . . . . . . CB - 26.965 TO 27.405 MHz
FREQUENCY TOLERANCE . . . . . . . . . . . 0.005 %
FREQUENCY CONTROL . . . . . . . . . . . . PLL (PHASE LOCK LOOP) SYNTHES ZER
OPERAT NG TEMPERATURE
RANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30° C TO + 50° C
M CROPHONE . . . . . . . . . . . . . . . . . . . . . PLUG- N DYNAM C
NPUT VOLTAGE . . . . . . . . . . . . . . . . . . . 13.8VDC nom. (positive or negative ground)
CURRENT DRA N TRANSM T: AM FULL MOD., 1.5A
(MAX MUM) RECE VE: SQUELCHED, 0.3A;
FULL AUD O OUTPUT, 1.2A (NOM NAL)
S ZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5/8” D X 6-3/8” W X 2-13/64” H
WE GHT . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 lbs.
ANTENNA CONNECTOR . . . . . . . . . . . .UHF; SO-239
SEM CONDUCTORS . . . . . . . . . . . . . . . .33 TRANS STORS, 28 D ODES,
3 NTEGRATED C RCU TS
METER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LLUM NATED; ND CATES RELAT VE
POWER OUTPUT AND RECE VED
S GNAL STRENGTH
TRA SMITTER
POWER OUTPUT . . . . . . . . . . . . . . . . . . .4 WATTS
MODULAT ON . . . . . . . . . . . . . . . . . . . . . .AM (AMPL TUDE MODULAT ON)
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 Hz
OUTPUT MPEDANCE . . . . . . . . . . . . . . .50 OHMS, UNBALANCED
RECEIVER
SENS T V TY . . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 1 µV FOR 10dB (S+N) /N
SELECT V TY . . . . . . . . . . . . . . . . . . . . . . .6 dB @ 7 kHz, 60 dB @ 10kHz
MAGE REJECT ON . . . . . . . . . . . . . . . . .80 dB, TYP CAL
ADJACENT-CHANNEL REJECT ON . . .60 dB, TYP CAL
F FREQUENC ES . . . . . . . . . . . . . . . . . . .DOUBLE CONVERS ON: 1st: 10.695 MHz
2nd: 455 kHz
AUTOMAT C GA N CONTROL (AGC) .LESS THAN 10 dB CHANGE N AUD O
OUTPUT FOR NPUTS FROM 10 TO 50,000
M CROVOLTS
RF GA N CONTROL . . . . . . . . . . . . . . . . .ADJUSTABLE FOR OPT MUM S GNAL
RECEPT ON
NO SE BLANKER . . . . . . . . . . . . . . . . . . . .RF TYPE
SQUELCH . . . . . . . . . . . . . . . . . . . . . . . . . .ADJUSTABLE; THRESHOLD LESS THAN 1µV
AUD O OUTPUT POWER . . . . . . . . . . . .4 WATTS
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 Hz
D STORT ON . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 7% @3 WATTS @ 1000 Hz
BU LT- N SPEAKER . . . . . . . . . . . . . . . . . .8 OHMS, 5W
EXTERNAL SPEAKER (NOT SUPPL ED) .8 OHMS; D SABLES NTERNAL SPEAKER
WHEN CONNECTED
PA SYSTEM
POWER OUTPUT . . . . . . . . . . . . . . . . . . .4 WATTS NTO EXTERNAL SPEAKER
EXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS, WHEN PA-CB SW TCH S N PA,
(NOT SUPPL ED) . . . . . . . . . . . . . . . . . . .THE PA SPEAKER ALSO MON TORS THE
RECE VER; SEPARATE JACK PROV DED
(SPEC F CAT ONS SUBJECT TO CHANGE W THOUT NOT CE)
The COBRA 25 LTD Classic transceiver represents
one of the most ad vanced 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 cov er age of all 40 CB
chan nels.
1 26.965 21 27.215
2 26.975 22 27.225
3 26.985 23 27.255
4 27.005 24 27.235
5 27.015 25 27.245
6 27.025 26 27.265
7 27.035 27 27.275
8 27.055 28 27.285
9 27.065 29 27.295
10 27.075 30 27.305
11 27.085 31 27.315
12 27.105 32 27.325
13 27.115 33 27.335
14 27.125 34 27.345
15 27.135 35 27.355
16 27.155 36 27.365
17 27.165 37 27.375
18 27.175 38 27.385
19 27.185 39 27.395
20 27.205 40 27.405
Channel Channel
CB Freq. CB Freq.
Channel In MHz Channel In MHz
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Optional Accessories
Limited Two ear Warranty
31
30
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 deliv-
ery to the Cobra Factory Service department, accompa-
nied 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. n the event of misuse or abuse of the product or as a
result of unauthorized alterations or repairs.
3. f the serial number has been altered, defaced, or
removed.
4. f the owner of the product resides outside the U.S.A.
All implied warranties, including warranties of mer-
chantability 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.
Cobra El ctronics
Corporation
6500 West Cortland Street
Chicago, Illinois 60707
R plac m nt DC Pow r Cord
For in vehicle use
426-002-N-001
R plac m nt Mounting
Brack t
For in vehicle use
251-199-9-001
R plac m nt Thumb Scr ws
For in vehicle use
634-081-9-001
R plac m nt Microphon
Brack t
For in vehicle use
741-080-9-001
R plac m nt Dynamic
Microphon
For in vehicle use
CA 73
21” Bas Load d Magn t
Mount Ant nna
HG A1000
38” Bas Load d Magn t
Mount Ant nna
HG A1500
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Accessory Order InfoOptionalAccessories
3332
Dynamic Ext rnal Sp ak r
HG S100
Nois Canc ling Ext rnal
Sp ak r
HG S300
Nois Canc ling With Talk
Back Ext rnal Sp ak r
HG S500
4 Pin R plac m nt Dynamic
Microphon
HG M73
4 Pin Nois Canc ling
Microphon
HG M77
Pow r Microphon
HG M75
Optional Accessories
Y u can find quality C bra pr ducts and
access ries at y ur l cal C bra dealer, r in the
U.S.A., y u can rder directly fr m C bra.
See rdering inf n page 33.
Ordering From U.S.A.
Call 773-889-3087 for pricing or
visit www.cobra.com.
For Credit Card Orders
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, L 60707 U.S.A.
To Order Online
Please visit our website:
www.cobra.com
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
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

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.
34
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

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.)
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 “broad-
casting.”
FCC Warnings
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.
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.
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 oper-
ator’s license.
What’s Included with Your 25 LTD Classic
1. CB transceiver 6. DC power cord
2. Microphone 7. FCC rules
3. Transceiver bracket 1. (not shown)
4. Microphone bracket
5. Operating Manual
25 LTD Classic
©2010 C bra Electr nics C rp rati n
Printed in China
Part N . 545-023-N-001 Versi n F
CB Radio
Operating Instructions
for your Cobra 25 LTD Classic
The CB Story
A1
3
2
4
5
1
25 LTD Classic
©2009 Cobra Electronics Corporation
Printed in China
Part No. 545-023-N-001 Version C
CB Radio
Operating Instructions
for your Cobra 25 LTD Classic
DYNAMIKE
RX/ TX
RFGAIN
MIN MIN MAX
25 LTD CLASSIC
CH9
BRT
NB
PA OFF DIM NORMAL
CB/
ANL
Nothing Comes Close to a Cobra®
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, L 60707
For more information or to
order any of our products,
please visit our website:
www.cobra.com
CB Radios
microTALK®Radios
Radar/Laser Detectors
Safety Alert®Traffic War i g Systems
HighGear®Accessories
CobraMari e®VHF Radios
Power I verters
Accessories
The Cobra Electro ics Corporatio ™
li e of quality products i cludes:
Nothing Com s Clos to a Cobra®
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]

Controls and Indicators Our Thanks to ou
A3
A2
12 3 4 5
16 17
12
7
14 15
8
9
10
11
13
6
1. 4-Pin Microphone Connector
2. Power n/ ff/Volume/
Squelch
3. Dynamike
4. RF Gain
5. Channel Selector
6. LED Channel Display
7. RX (Receive)/ TX (Transmit)
LED Indicator
8. Channel 9/ Normal Switch
9. Dimmer Switch
10. NB/ ff Switch
11. CB/ANL PA Switch
12. Signal Strength Meter
13. Microphone
Back Sid
14. Public Address Jack
15. External Speaker Jack
16. Antenna Connector
17. Power Jack
Thank you for purchasing the Cobra 25 LTD Classic
CB Radio. Properly used, this Cobra product will give
you many years of reliable service.
Customer Assistance
Should you encounter any problems with this prod-
uct, or not understand its many features, please
refer to this owner’s manual. f you require further
assistance after reading this manual, Cobra
Electronics offers the following customer assistance
services:
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).
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).
Technical Assistance English only.
www.cobra.com (online: Frequently Asked Questions).
English and Spanish. [e-mail] (e-mail).
For Assistance Outside the U.S.A.
Contact Your Local Dealer
35
Notes
For Sales Information Please Contact
RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.
Wilmington, NC 28411
[phone] / [phone]
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
8312 Sidbury Rd.; Wilmington, NC 28411 - [phone] / [phone]