Cobra Electronics Indoor Fireplace 25 NW User Manual

How to Use Your  
Cobra 25 NW  
Contents  
Features...........................................................................................1  
The CB Story..................................................................................A1  
FCC Regulations  
FCC Warnings  
Included Accessories  
Controls & Indicators ................................................................A2  
Our Thanks to You ......................................................................A3  
Customer Support  
Features of This Product  
40 CB Radio Channels  
Installation  
Location.......................................................................................2  
Mounting and Connection...................................................2  
Antennas  
Heavy-Duty Dynamic  
Microphone  
CB Antenna ................................................................................6  
Marine Installation...................................................................6  
Ignition Noise Interference ...................................................7  
Operating Your 25 NW  
Full 4 Watts AM RF Power Output  
Instant Channel 19 and 9  
Turning On Your CB.................................................................8  
Setting Channel Selector.......................................................9  
To Receive ...................................................................................10  
Selecting a Channel ................................................................10  
S-Meter.........................................................................................11  
Dimmer Control........................................................................12  
RF Gain Control.........................................................................12  
Setting Squelch.........................................................................13  
To Transmit .................................................................................15  
Setting Dynamike ....................................................................16  
Transmit.......................................................................................17  
RF Meter ......................................................................................17  
External Speaker.......................................................................18  
PA (Public Address)..................................................................19  
ANL (Automatic Noise Limiter) Switch.............................21  
NB, OFF (Noise Blanker) Switch...........................................21  
Temporary Mobile Set-Up.....................................................22  
Home And Office Set-Up.......................................................23  
How Your CB Can Serve You...................................................25  
A Few Rules You Should Know............................................25  
Channel 9 Emergency Messages .......................................25  
CB 10 Codes...............................................................................27  
Frequency Ranges......................................................................29  
25 NW Specifications................................................................30  
Warranty Information ..............................................................31  
Optional Accessories.................................................................32  
Order Form ....................................................................................34  
If You Think You Need Service .............................Back Cover  
Front Panel 4-Pin Microphone  
Connector  
Switchable Noise Blanker  
Switchable Automatic  
Noise Limiter  
Adjustable Dynamike Boost  
Tactile Controls  
Illuminated Front Panel  
Dimmer Control  
RF Gain  
9 ft. mic cord  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
!
CAUTION: TO REDUCE THE RISK OF ELECTRIC  
SHOCK DO NOT REMOVE COVER (OR BACK)  
NO USER SERVICEABLE PARTS INSIDE  
REFER SERVICING TO QUALIFIED SERVICE  
PERSONNEL  
!
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1
Installation  
FCC ID:BBO3K229LTD  
ANT  
COBRA  
MADE IN CHINA  
PA.SP. EXT.SP.  
+POWER—  
SERIAL NO.:806135776  
PRECISION ENGINEERED PRODUCT OF  
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707  
3
Connect the antenna cable plug to the recep-  
tacle marked “ANT” on the back of the unit.  
continued  
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3
Installation  
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  
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  
4
5
In a negative grounded vehicle, connect the  
red lead of the DC power cord to an accessory  
12 volt fuse.  
In positive ground vehicles the  
red wire goes to the chassis and  
the black wire is connected to  
the ignition switch.  
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.  
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4
Installation  
OF  
JUNE 98  
FCC ID:BBO3K229LTD  
ANT  
COBRA  
PA.SP. EXT.SP.  
+POWER–  
MADE IN CHINA  
06135776  
NGINEERED PRODUCT OF  
CTRONICS CORP. CHICAGO, ILL.60707  
6
Plug power cable into back of unit marked  
“Power. Be sure to observe polarity markings.  
Microphone  
Connector  
7
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.  
SHIELD  
AUDIO  
RX  
4
1
2
TX  
3
RF  
SIG 1  
3
5
7
9
+30dB  
OFF  
MIN  
8
Attach the 4-pin microphone cable to recepta-  
cle on front of unit and Install unit in bracket  
securely.  
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5
Antennas  
CB Antenna  
CB Antenna  
Note  
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.  
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.  
Note  
Because many newer trucks  
feature fiberglass door skins, the  
outside mirror must be ground-  
ed to the chassis via a ground  
strap, if the antenna is mounted  
on the mirror bracket.  
FCC ID:BBO3K229LTD  
ANT  
COBRA  
PA.SP. EXT.SP.  
+POWER—  
MADE IN CHINA  
SERIAL NO.:806135776  
PRECISION ENGINEERED PRODUCT OF  
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707  
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  
1
A standard antenna connector is provided  
on the transceiver for easy connection.  
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.  
773.889.3087 for further infor-  
mation.  
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6
Ignition Noise Interference  
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 NW 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.  
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7
Operation  
Turning On  
Turning On  
Make sure the power cord, antenna and micro-  
phone are connected to their proper connectors  
before starting.  
25 NW LTD CLAS  
RF  
SIG 1  
3
5
7
9
+30dB  
OFF  
MI  
MIN  
MAX  
1
The CB/PA button should be in the  
CB position.  
LTD CLASSIC  
2
Rotate the On/Off Volume knob  
a normal listening level.  
clockwise to  
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8
Operation  
Setting Channel Selector  
Setting Channel  
Selector  
LTD CLASSIC  
MIN  
MAX  
MIN  
MAX  
1
Select  
one of forty channels and adjust  
volume. The selected channel is indicated by  
the LED readout directly above the channel  
selector knob  
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9
Operation  
To Receive  
To Receive  
LTD CLASSIC  
1
Rotate the  
On/Off Volume knob clockwise  
the green RX/TX LED will be illiuminated.  
Selecting A Channel  
Selecting A  
Channel  
25 NW LTD CLASSIC  
Note  
Switch to 9 (Emergency) or 19  
(Information) for instant access  
to these channels.  
1
Switch to NOR to select desired channel.  
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Operation  
S-Meter  
S-Meter  
Swings proportionately to strength of incoming  
signal when receiving.  
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Operation  
Dimmer Control  
Dimmer Control  
LTD CLASSIC  
SQL  
Note  
The Dim controls the brightness  
of the front panel, signal strength  
meter and channel display.  
MIN  
MAX  
MIN  
MAX  
1
Rotate the  
DIM knob clockwise for  
maximum brightness; counter-clockwise  
for minimum.  
RF Gain Control  
The RF Gain is used to optimize reception in  
strong or weak signal areas.  
RF Gain Control  
25 NW LTD CLASSIC  
RF  
SIG 1  
3
5
7
9
+30dB  
Note  
The RF Gain is used to optimize  
reception in weak signal areas.  
OFF  
MIN  
MAX  
MIN  
MAX  
1
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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Operation  
Setting Squelch  
Squelch is the “control gate” for incoming signals.  
Setting Squelch  
Gate closed  
CLASSIC  
STRONG SIGNALS  
RF  
SIG 1  
3
5
7
9
+30dB  
MEDIUM SIGNALS  
WEAK SIGNALS  
NOISE  
OFF  
MIN  
MAX  
MIN  
MAX  
1
Full  
clockwise rotation closes the gate  
allowing only very strong signals to enter.  
Gate open  
LTD CLASSIC  
RF  
STRONG SIGNALS  
SIG 1  
3
5
7
9
+30dB  
MEDIUM SIGNALS  
WEAK SIGNALS  
NOISE  
OFF  
MIN  
MAX  
MIN  
MAX  
2
Full  
counterclockwise rotation opens the  
“gate” allowing all signals in.  
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13  
Operation  
Gate set to Desired  
Squelch Setting (DSS)  
LTD CLASSIC  
RF  
SIG 1  
3
5
7
9
+3
STRONG SIGNALS  
MEDIUM SIGNALS  
WEAK SIGNALS  
NOISE  
OFF  
MIN  
MAX  
MIN  
MAX  
3
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.  
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Operation  
To Transmit  
To Transmit  
LTD CLASSIC  
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.  
MIN  
MAX  
MIN  
MAX  
Be sure to read the F.C.C. Rules  
and Regulations included with  
this unit before transmitting.  
1
Select desired  
channel.  
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15  
Operation  
Setting Dynamike  
This controls the microphone sensitivity  
(outgoing audio level).  
Setting  
Dynamike  
LTD CLASSIC  
RF  
SIG 1  
3
5
7
9
+30dB  
OFF  
MIN  
MAX  
MIN  
MAX  
1
Initially, set fully  
clockwise so that maxi-  
mum voice volume is available. Dynamike  
may have to be reduced in some conditions.  
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Operation  
Transmit  
Transmit  
PUSH &  
HOLD  
1
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.  
RF Meter  
RF Meter  
This meter swings proportionately to the RF  
output (outgoing signal) while transmitting.  
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17  
Operation  
External Speaker  
Note  
External Speaker  
The external Speaker jack is used for remote  
receiver monitoring.  
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.  
FCC ID:BBO3K229LTD  
ANT  
COBRA  
PA.SP. EXT.
+POWER–  
MADE IN CHINA  
ODUCT OF  
P. CHICAGO, ILL.60707  
Note  
1
Connect an external speaker to the external  
speaker jack on the rear panel.  
Cobra external speakers are  
rated at 15 watts. See  
accessories page 33.  
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Operation  
PA (Public Address)  
PA (Public  
Address)  
FCC ID:BBO3K229LTD  
ANT  
Note  
COBRA  
.SP. EXT.SP.  
+POWER–  
MADE IN CHINA  
Speaker should have 8-ohm  
impedance and be rated to  
handle at least 4.0 watts.  
RODUCT OF  
P. CHICAGO, ILL.60707  
Note  
The speaker should be directed  
away from the microphone to  
prevent acoustic feedback.  
1
Connect an external PA speaker to the PA jack  
on the rear panel.  
Note  
LTD  
25 NW  
CLAS  
Activity on the CB channel  
will be heard through the PA  
speaker. Adjust Volume Control  
for normal listening level.  
RF  
SIG 1  
3
5
7
9
+30dB  
OFF  
MI  
MIN  
MAX  
2
Set CB PA switch to PA position.  
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19  
Operation  
PUSH &  
HOLD  
3
Push and hold microphone button and speak  
in a normal voice.Your voice will sound on the  
PA speaker.  
LTD CLASSIC  
RF  
SIG 1  
3
5
7
9
+30dB  
OFF  
MIN  
MAX  
MIN  
MAX  
4
Adjust PA speaker volume with the  
Dynamike control.  
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Operation  
ANL (Automatic Noise Limiter) Switch  
ANL (Automatic  
Noise Limiter)  
Switch  
25 NW LTD CLAS  
RF  
SIG 1  
3
5
7
9
+30dB  
OFF  
MI  
MIN  
MAX  
1
When switched to ANL the Automatic Noise  
Limiter is activated. This helps reduce noise  
created by the vehicle’s electronics.  
NB, OFF (Noise Blanker) Switch  
NB, OFF  
(Noise Blanker)  
Switch  
LTD CLA  
RF  
Note  
SIG 1  
3
5
7
9
+30dB  
The RF noise blanker is very  
effective in reducing repetitive  
noises such as ignition interfer-  
ence.  
VOL  
SQL  
OFF  
MIN  
MAX  
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.  
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21  
Temporary Mobile Set-Up  
Temporary Mobile Operation  
For temporary mobile operation you may want to  
purchase an optional cigarette lighter adapter  
from your COBRA dealer. This adapter and a mag-  
netic mount antenna allow you to quickly “install”  
your transceiver for temporary use.  
Temporary  
Mobile Set-Up  
DATE OF  
MFG :JUNE 98  
FCC ID:BBO3K229LTD  
ANT  
COBRA  
MADE IN CHINA  
PA.SP. EXT.SP.  
+POWER–  
SERIAL NO.:806135776  
PRECISION ENGINEERED PRODUCT OF  
COBRA ELECTRONICS CORP CHICAGO, ILL.60707  
.
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Home And Office Set-Up  
Base Station Operation  
(From 120V AC House Current)  
Base Station  
Operation  
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.  
(From 120V AC  
House Current)  
+
Warning!  
Do not attempt to operate this  
transceiver by connecting it  
directly to 120 vac.  
Note  
For further information call  
Cobra Customer Service  
1.773.889.3087.  
1
Simply connect the red (+) and black (-)  
leads of the transceiver to the corresponding  
terminals of the power pack.  
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23  
Home And Office Set-Up  
FCC ID:BBO3K229LTD  
ANT  
COBRA  
PA.SP. EXT.SP.  
+POWER–  
MADE IN CHINA  
ODUCT OF  
P. CHICAGO, ILL.60707  
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.  
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How Your CB Can Serve You  
• 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 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.  
1. Set to channel 9 for emergencies  
Channel 9  
Emergency  
Messages  
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):  
Note  
C all Sign Identify yourself.  
L ocation Be exact.  
I njuries Number. Type. Trapped?  
P roblem Give details and help needed.  
If no response on channel 9,  
try channels 19 or 14.  
Transmit CLIP repeatedly so any monitor can assist.  
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25  
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.”  
No  
“Post number 10.  
No tornado sighted.”  
Yes  
“Out of gas on I-95 at mile  
marker 211.”  
No  
“Out of gas in my driveway.”  
Yes  
“Four car accident on I-94 at  
Exit 11. Send police and  
ambulance.”  
No  
“Traffic moving smoothly on I-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  
No  
“Fire in building at 539 Main,  
Evanston.”  
“Halloween patrol number 3.  
All quiet.”  
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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 Meaning  
10-1  
10-2  
10-3  
10-4  
10-5  
10-6  
10-7  
10-8  
10-9  
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  
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 Identify your station  
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27  
How Your CB Can Serve You  
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  
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Frequency Ranges  
The COBRA 25 NW 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  
Freq.  
Channel In MHz  
Channel  
Freq.  
Channel In MHz  
CB  
CB  
1
2
3
4
5
26.965  
26.975  
26.985  
27.005  
27.015  
21 27.215  
22 27.225  
23 27.255  
24 27.235  
25 27.245  
6
7
8
9
27.025  
27.035  
27.055  
27.065  
27.075  
26 27.265  
27 27.275  
28 27.285  
29 27.295  
30 27.305  
10  
11  
12  
13  
14  
15  
27.085  
27.105  
27.115  
27.125  
27.135  
31 27.315  
32 27.325  
33 27.335  
34 27.345  
35 27.355  
16  
17  
18  
19  
20  
27.155  
27.165  
27.175  
27.185  
27.205  
36 27.365  
37 27.375  
38 27.385  
39 27.395  
40 27.405  
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29  
25 NW Specifications  
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 6-3/8W X 2-13/64” H  
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 LBS.  
ANTENNA CONNECTOR . . . . . . . . . . . .UHF; SO-239  
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 RANGE . . . . . . . . . . . . . . . . . . . .40 dB  
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, 4 W. MIN.  
(NOT SUPPLIED) . . . . . . . . . . . . . . . . . . .THE PA SPEAKER ALSO MONITORS THE  
RECEIVER; SEPARATE JACK PROVIDED  
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)  
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Limited Two Year Warranty  
COBRA ELECTRONICS CORPORATION warrants that its  
COBRA CB Radios, and the component parts thereof, will  
be free of defects in workmanship and materials for 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.  
W
QUALIITY SEAL  
COBRA will, without charge, repair or replace, at its option,  
defective CB 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.  
Cobra Electronics  
Corporation  
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.  
6500 West Cortland Street  
Chicago, Illinois 60707  
This warranty gives you specific legal rights, and you may  
also have other rights which 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.  
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31  
Optional Accessories  
Replacement Mounting  
Bracket  
Replacement Thumb Screws  
Replacement DC Power Cord  
For in vehicle use  
For in vehicle use  
For in vehicle use  
251-199-9-001  
634-081-9-001  
$0.60  
426-002-N-001  
$7.50  
$4.50  
Replacement Microphone  
Bracket  
21” Base Loaded Magnet  
Mount Antenna  
38” Base Loaded Magnet  
Mount Antenna  
For in vehicle use  
HG A1000  
$28.95  
HG A1500  
$46.95  
741-080-9-001  
$0.45  
4 Pin Premium Noise-  
Cancelling Microphone  
4 Pin Premium Noise-  
Cancelling Microphone  
Wood Grain  
5 Pin Premium Noise-  
Cancelling Microphone  
HG M84  
$74.95  
HG M85  
$74.95  
HG M84W  
$74.95  
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Optional Accessories  
Power Microphone  
HG M75  
4 Pin Noise Canceling  
Microphone  
4 Pin Replacement Dynamic  
Microphone  
$25.95  
HG M77  
$30.95  
HG M73  
$19.95  
Dynamic External Speaker  
Noise Canceling External  
Speaker  
Noise Canceling With Talk  
Back External Speaker  
HG S100  
$21.95  
HG S300  
$28.95  
HG S500  
$32.95  
You Can Find These Fine Accessories At Your Local  
Cobra CB Dealer  
If you wish, you can order directly from Cobra.  
Order by phone  
Call 1.773.889.3087  
(Press 1 from the main menu) 8 a.m.-6 p.m. M-F CST.  
54” Base Loaded Magnet  
Mount Antenna  
Order by mail or fax  
HG A2000  
$99.95  
Please fill out order form on next page, and mail/fax directly  
to Cobra.  
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33  
Accessory Order Form  
Item #  
Description  
Cost Ea. Qty. Amount  
426-002-N-001  
251-199-9-001  
634-081-9-001  
741-080-9-001  
HG A1000  
Replacement DC Power Cord  
Replacement Mounting Bracket  
Replacement Thumb Screws  
Replacement Microphone Bracket  
21” Base Loaded,  
Magnetic Mount Antenna  
38” Base Loaded  
Magnetic Mount Antenna  
54” Base Loaded  
Magnetic Mount Antenna  
4 Pin Premium Noise-Cancelling  
Microphone  
4 Pin Premium Noise-Cancelling  
Microphone (Wood Grain)  
5 Pin Premium Noise-Cancelling  
Microphone  
4 Pin Replacement Dynamic  
Microphone  
$7.50  
$4.50  
$0.60  
$0.45  
$28.95  
$46.95  
$99.95  
$74.95  
$74.95  
$74.95  
$19.95  
HG A1500  
HG A2000  
HG M84  
HG M84W  
HG M85  
HG M73  
HG M77  
4 Pin Noise-Cancelling  
Microphone  
Power Microphone  
Dynamic External Speaker  
Noise-Cancelling External  
Speaker  
$30.95  
$25.95  
$21.95  
HG M75  
HG S100  
HG S300  
Shipping & Handling  
$28.95  
$32.95  
Amount of  
Order  
Shipping/  
Handling  
HG S500  
Noise-Cancelling with Talk Back  
External Speaker  
$25.00 and under $4.75 minimum  
Subtotal  
Prices subject to change without notice.  
$25.01-$40.00  
$40.01-$80.00  
$80.01-$120.00  
$6.95  
$9.25  
$10.25  
Tax Table  
(Tax if applicable)  
Shipping/handling  
Total  
Illinois residents add 7%  
Michigan residents add 4 %  
Cook Co. residents add .75% (7.75% total) Ohio residents add 6%  
Chicago residents add 1% (8.75% total)  
Indiana residents add 5%  
Wisconsin residents add 5%  
$120.01-$160.00 $11.75  
$160.01 and up $14.50  
For credit card orders fill out order form  
and fax to: 1.773.622.2269  
or call 1.773.889.3087  
8:00 am - 6:00 pm, M-F, CST.  
Make check or money order (no stamps)  
payable to:  
Cobra Accessories Dept.  
6500 West Cortland St. Chicago, IL 60707  
For AK, HI and PR please add  
an additional $15.00 for UPS  
shipments.  
(Press 1 from the main menu)  
Please print clearly  
Name  
Address (No P.O. Box)  
City  
Zip  
State  
Telephone (  
)
Credit Card No.  
Exp. Date  
Customer Signature  
Circle One: Visa MasterCard Discover  
Allow 2 to 3 weeks for delivery.  
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34  
The Cobra line of quality products  
also includes:  
• MicroTalkRadios  
• Radar Detectors  
• SafetyAlert®  
Traffic Warning Systems  
• HighGearCB Accessories  
• HighGearPower Inverters  
Nothing comes close to a Cobra™  
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Cobra Electronics Corporation  
6500 West Cortland Street  
Chicago, IL 60707  
If You Think You Need Service  
For technical assistance, please call our Automated Help Desk which can assist  
you by answering the most frequently asked questions about Cobra products.  
(773) 889-3087  
24 hours a day, 7 days a week.  
A Consumer Service Representative can be reached through this same number 8:00 am - 6:00  
pm, Monday through Friday, CST.  
Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section at  
If you think you need service call 1.773.889.3087  
“If your product should require factory service please call Cobra first before sending your unit in.  
This will ensure the fastest turn-around time on your repair.”  
You may be asked to send your unit to the Cobra factory. It will be necessary to furnish the follow-  
ing in order to have the product serviced and returned.  
1. For Warranty Repair include some form of proof-of-purchase, such as a mechanical reproduction  
or carbon or a sales receipt. If you send the original receipt it cannot be returned.  
2. Send the entire product.  
3. Enclose a description of what is happening with the unit. Include a typed or clearly print name  
and address of where the unit is to be returned.  
4. Pack unit securely to prevent damage in transit. If possible, use the original packing material.  
5. Ship prepaid and insured by way of a traceable carrier such as United Parcel Service (UPS) or First  
Class Mail to avoid loss in transit to: Cobra Factory Service, Cobra Electronics Corporation, 6500  
W. Cortland St., Chicago, IL 60707.  
6. If the unit is in warranty, upon receipt of your unit it will either be repaired or exchanged  
depending on the model. Please allow approximately 3 to 4 weeks before contacting us for  
status. If the unit is out of warranty a letter will automatically be sent informing you of the  
repair charge or replacement charge. If you have any questions, please call 1.773.889.3087  
for assistance.  
Cobra Electronics Corp.© 2001  
Printed in China  
Part No. 25 NW MAN  
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25 NW LTD CLASSIC  
Operating Instructions  
for your Cobra 25 NW LTD CLASSIC  
CB Radio  
2
5
N
W
L
T
D
C
L
A
S
S
IC  
R
F
G
A
IN  
D
Y
N
A
D
IM  
“Ingenious Products for Easier Communication.”  
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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.)  
2
FCC Regulations  
1
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.”  
LTD CLASSIC  
RF  
SIG  
1
3
5
7
9
+30dB  
OFF  
MIN  
MAX  
MIN  
MAX  
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.  
3
CB Transceiver  
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
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.  
25 NW  
Operating Instructions  
for your Cobr  
CB Radio  
Whats Included with Your 25 NW  
1. CB transceiver  
2. Microphone  
6. DC power cord  
7. FCC rules  
25 NW  
5
RF GA  
IN  
D
YNA  
DIM  
3. Transceiver bracket  
4. Microphone bracket  
5. Operating Manual  
1. (not pictured)  
“Ingenious Products for Easier Communication.”  
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A1  
Controls and Indicators  
1. 4-Pin Microphone Connector  
2. Power On/Off/Volume  
3. Squelch  
14  
4. RF Gain/DynaMike  
5. Dim  
6. Channel Selector  
7. LED Channel Display  
8. RX (Receive)/ TX (Transmit)  
LED Indicator  
9. Channel 19/Channel 9/  
Normal Switch  
10. CB/PA Switch  
11. NB/Off Switch  
9
10  
8
11  
12  
LTD CLASSIC  
12. ANL/Off Switch  
13. Signal Strength Meter  
14. Microphone  
RF  
7
13  
SIG  
1
3
5
7
9
+30dB  
OFF  
MIN  
MAX  
MIN  
MAX  
Back Side  
15. Public Address Speaker Jack  
16. External Speaker Jack  
17. Antenna Connector  
18. Power Jack  
1
2
3
4
5
6
15 16  
DATE OF  
MFG :JUNE 98  
FCC ID:BBO3K229LTD  
ANT  
COBRA  
PA.SP. EXT.SP.  
+POWER–  
MADE IN CHINA  
SERIAL NO.:806135776  
PRECISION ENGINEERED PRODUCT OF  
COBRA ELECTRONICS CORP. CHICAGO, ILL.60707  
17  
18  
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Our Thanks to You  
Thank you for purchasing the Cobra 25 NW CB  
Radio. Properly used, this Cobra product will give  
you many years of reliable service.  
Cobra Customer Service  
Live operators are available  
M-F 8:00 am - 6:00 pm CST at:  
773.889.3087  
Customer Support  
Should you encounter any problems with the  
product or not understand its many features,  
please refer to this owner’s manual. If , after  
referring to the manual, you still need help,  
call Cobra Customer Service at 773.889.3087.  
Automated Technical Assistance  
available 24 hours a day, seven  
days a week. E-mail questions  
to: productinfo@cobraelec-  
tronics.com  
Cobra on the World Wide Web:  
Frequently Asked Questions  
(FAQ) can be found on-line at:  
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