COBRA 148 NW ST - Car radio

148 NW ST - Car radio COBRA - Free user manual and instructions

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Product Type CB Radio (Citizens Band)
Brand Cobra
Model 148 NW ST
Dimensions (W x H x D) Approx. 7.5 x 2.5 x 9.5 inches
Weight Approx. 3.5 lbs (1.6 kg)
Power Source 13.8V DC (negative ground)
Frequency Range 26.965 to 27.405 MHz (40 CB channels)
Modulation Modes AM, SSB (USB/LSB)
Number of Channels 40
Antenna Connector UHF (SO-239)
Display LED channel display with S-meter
Audio Output Power 4W RMS (AM), 12W PEP (SSB)
Microphone Dynamic, noise-cancelling (included)
Special Features RF gain control, squelch, clarifier, PA function
Mounting Type Under-dash or bracket mount
Included Accessories Microphone, mounting bracket, power cord, manual
Maintenance Clean with dry cloth; avoid moisture; check antenna SWR
Safety Instructions Use only with negative ground vehicles; FCC compliance
Spare Parts and Repairability Contact Cobra service center; user-replaceable fuse
General Information Designed for mobile use; operates on CB band; FCC ID: BBOCB148

Frequently Asked Questions - 148 NW ST COBRA

How do I install the Cobra 148 NW ST in my vehicle?
Mount the radio securely using the bracket, connect the power cord to a 13.8V DC source with negative ground, and attach a CB antenna with a PL-259 connector. Ensure the antenna is tuned for best SWR.
What is the difference between AM and SSB modes?
AM (Amplitude Modulation) is the standard mode for CB communication with up to 4W output. SSB (Single Sideband) provides greater range and efficiency using USB or LSB, with up to 12W PEP.
How do I adjust the squelch?
Turn the squelch knob clockwise to filter out weak signals and static. Adjust until background noise stops, then fine-tune for desired reception.
What does the clarifier control do?
The clarifier fine-tunes the receiver frequency to compensate for off-frequency transmissions, especially useful in SSB mode to make voices sound natural.
Why is my CB not transmitting?
Check the microphone connection, ensure the power cord is securely plugged in, and verify the antenna system (SWR should be below 2:1). Also confirm the mode and channel settings.
Can I use this radio with a positive ground vehicle?
No, the Cobra 148 NW ST is designed for negative ground systems only. Using it with positive ground may damage the radio.
How do I set up the public address (PA) function?
Connect an external speaker to the PA jack on the rear panel. Turn the PA/CB switch to PA and speak into the microphone. Adjust volume with the PA volume control.
What is the maximum range of this CB radio?
Range depends on antenna type, terrain, and conditions. Typically 3-5 miles with a good antenna, but SSB mode can extend to 10-15 miles under optimal conditions.
How do I clean and maintain the radio?
Use a soft, dry cloth to wipe the exterior. Avoid liquids. Periodically check antenna connections and SWR. Replace the fuse only with the specified amperage if blown.
Where can I find spare parts or service?
Contact Cobra customer service or an authorized service center. Common user-replaceable parts include the fuse and microphone. For internal repairs, seek professional service.

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Download the instructions for your Car radio in PDF format for free! Find your manual 148 NW ST - COBRA and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. 148 NW ST by COBRA.

USER MANUAL 148 NW ST COBRA

148 NM ST manual 3.3 6/15/99 3:11 PM Page 1

How to Use Your Cobra 148 NW ST

Features

The CB Story....A1

FCC Regulations

FCC Warnings

Included Accessories

Controls & Indicators....A2

Our Thanks to You....A3

SoundTracker

Customer Support

Installation

Location 2

Mounting and Connection 2

Antennas

CB Antenna 6

Marine Installation

Ignition Noise Interference 7

Operating Your 148 NW ST

Turing On Your CR

Setting Channel Selector

Setting channel selector To Receive 10

To Receive....10

S-Meter

SoundTracker® System....11

Activating SoundTracker ^v 12

NB Off (Noise Blanker/Limiter) Switch 13

Dimmer Switch 14

BE Gain Control

Setting Squeleh 16

Setting Squelch....18 To Transmit 20

10 transmit....20 RE Meters....21

RF Meter.

External Speaker 22

PA (Public Address) 23

Home And Office Set-Up 25

Temporary Mobile Set-up

How Your CB Can Serve You 27

A Few Rules You Should Know 27

Channel 9 Emergency Messages 27

Channel 5 Emergency Messages....27 CB 10 Codes....29

US TO Codes...... Frequency Ranges

Frequency Ranges....31 140 NW/CT specifications....89

148 NW ST Specifications 32

Warranty Information....33

Optional Accessories....34

Order Form

If You Think You Need Service ....Back Cover

Features of This Product

• 40 CB Radio Channels

• 80 SSB Channels

• SoundTracker "System"

• Heavy-Duty Dynamic

Microphone

• Full 4 Watts AM RF Power Output

• 12 Watts SSB RF Power Output

• Instant Channel 9

- Front Panel 4-Pin Microphone Connector

- Switchable Noise Blanker

• Adjustable Dynamike Boost

• Tactile Controls

• SWR Calibration Meter

• RF Gain

• 9 Ft Mic Cord

• Illuminated Front Panel

- Dimmer Control

COBRA 148 NW ST - Features of This Product - 1

COBRA 148 NW ST - Features of This Product - 2

148 NW ST manual 3.3 6/15/99 3:11 PM Page 2

InstallationIns

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.

The transceiver is usually mounted to the underside of the dash with the microphone bracket beside it.

Mounting and Connection

Note

The transceiver is held in the universal mounting bracket by four thumbscrews which allow for adjustment at a convenient angle.

The bracket includes two self-tapping screws and star washers. The mounting must be mechanically strong, conveniently located.

Mounting and Connection

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.

cb tranceiver

② Drill the holes and secure the bracket.

Technical diagram showing a test setup with a probe, coiled cable, and an analog device labeled in Chinese.

3 Connect the antenna cable plug to the receptacle marked "ANT" on the back of the unit.

continued

2

3

InstallationIns

Note

Connecting to an accessory fuse prevents the unit from being left on accidentally, and also permits operating the unit without running the engine.

Note

In positive ground vehicles the red wire goes to the chassis and the black wire is connected to the ignition switch.

Note

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.

fuse box Red Black chassis

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.

COBRA ANT PAS SP. EXT SP. + POWER-

6 Plug power cable into back of unit marked "Power". Be sure to observe polarity markings.
⑦ Mount the microphone bracket on either side of the unit (driver's left) using two screws supplied. Bracket should be placed under the dash so microphone is readily accessible.

COBRA 148 NW ST - Note - 3

Cabra® 140 MHz ST A250MHz 183-500 MHz 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

8 Attach the 4-pin microphone cable to receptacle on front of unit and Install unit in bracket securely.

Ignition Noise InterferenceAn

CB Antenna

Note

For optimum performance in passenger cars the ideal antenna 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 grounded to the chassis via a ground strap if the antenna is mounted on mirror bracket.

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.

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.

CD8A AVI PUL SP, EX TSP + POWER -

① A standard antenna connector is provided on the transceiver for easy connection.

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.

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 148 NW ST 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.

148 NW ST manual 3.3 6/15/99 3:12 PM Page 8

Operation

Operation

Turning On SettingT@chian@el

Make sure the power cord, antenna and microphone are connected to their proper connectors before starting.

&Cobra 148 MW ST SMC MWC A MWC A MWC DUF PR SWMC VOL→SQL RFGAIN→SWRCAL GYMMANKE OFF MIN MAX RUN MAX

① The CB/PA button should be in the CB position.

S.Cobra 148 NM ST SOUNDTRAP KU: 1.00 LQ: 1.00 CAI: 1.00 DIN: 1.00 VOUT: 1.00 RIFAIN: 1.00 CAL: 1.00 DYNAMIC: 1.00 VOC/LOCK: 1.00 OFF: 1.00 MIN: 1.00 MAX: 1.00 MIN: 1.00 MAX: 1.00

2 Rotate the On/Off Volume knob Ⓞ clockwise to a normal listening level.

Setting Channel Selector

149 MHz ST SOUNDTRACKER CAI CAL SMBT LAW R CAL DYNAMICE VOICELOCK SIMMER MIN MAX MIN MAX 40

1 Select one of forty channels and adjust volume. The selected channel is indicated by the LED readout directly above the channel selector knob

Selector

8

9

148 NM ST manual 3.3 6/15/99 3:12 PM Page 10

Operation

Operation

To Receive

To Receive
Cobra® 148 MHz ST SOUND/SPIN A VOUT-LOAD VOUT-SOL RPSAIN-SURR CAL GYNA-MIKE VOICE-LOCK OFF MAX MIN MAX

1 Rotate the © On/Off Volume knob clockwise the green RT/TX LED will be illuminated.

S-Meter

S-Meter

Swings proportionately to strength of incoming signal when receiving.

Cobra® 140 NW ST SOUND MIN/ANL A.NL OFF PA BU/FU CAL UNI A.WI LSA VOL-SQL RFGAIN-SNR CAL DYNAMIKE VD OFF MIN MAX MIN MAX

① The S/RF-SWR-CAL switch must be in the S/RF position to read the meter.

The SoundTracker™ System

While previous systems only "blanket out" or limit noise in higher sound frequencies, the revolutionary new SoundTracker™ System actually reduces noise while leaving the signal intact in the reception mode. In the transmission mode, it actually strengthens the signal providing you with a significant reduction in noise on reception and transmission.

Sound clarity is measured by the ratio of the signal level to the noise level. The higher the signal-to-noise ratio, the better the sound.

How SoundTracker™ Works

On Reception - "Cuts noise coming in"

With a normal CB, distant signals fall below the squelch level and are unintelligible. With a SoundTracker™ CB, the noise level is cut up to 90%, which increases the signal-to-noise ratio and dramatically improves signal clarity. This also allows you to significantly reduce the squelch level, which greatly expands your listening range.

On Transmission - "Strengthens signals going out" A SoundTracker™ CB strengthens the transmit signal by more effectively using the available RF power output of the CB. The result is improved transmission signal clarity and an expanded transmission range.

COBRA 148 NW ST - How SoundTracker™ Works - 1

Note

SoundTracker™ gives you clearer, cleaner reception to improve CB communications while on the air.

COBRA 148 NW ST - Note - 1

COBRA 148 NW ST - Note - 2

10

11

148 NM ST manual 3.3 6/15/99 3:12 PM Page 12

OperationOp

Activating

SoundTracker™

Activating SoundTracker™
40 VOLUME AVG WINS LPG RISK VOLUME RISK VOLUME DIMMER MIN MAX VOLUME PUSH & RELEASE

1 Push and release the ST button. Red LED is illuminated when SoundTracker™ is turned on.

NB-ANL/ANL/OFF (Noise

Blanker/Automatic Noise Limiter) Switch

&Cabra® 149 MW ST Sdn VOUT → 30Ω N/A A/R A/S DFP PA SWM VOUT → 30Ω N/A A/R A/S DFP PA SWM VOUT → 30Ω N/A A/R A/S DFP PA SWM VOUT → 30Ω N/A A/R A/S DFP PA SWM VOUT → 30Ω N/A A/R A/S DFP PA SMM VOUT → 30Ω N/A A/R A/S DFP PA SMM VOUT → 30Ω N/A A/R A/S DFP PA SMM VOUT → 30Ω N/A A/R A/S DFP PA SMM VOUT → 30Ω

When switched to ANL the Automatic Noise Limiter is activated. This helps reduce noise created by the vehicle's electronics. When switched to RB/ANL position the RF Noise Blanker is also activated, providing increased noise filtration. When switched to OFF position all noise filtration will be turned off.

Hi/Low Tone Control
ST SOUND/MASTER 40 VOLUME VOICELOCK TIME DIMMER MAX MIN MAX

When switched, this button is used to shape the audio response to the operator's preference.

NB-ANL/ANL/

OFF (Noise

Blanker/

Automatic

Noise Limiter)

Switch

Note

The RF Noise Blanker is very effective in reducing repetitive noises such as ignition interference. The Automatic Noise Limiter helps reduce noise created by the vehicle's electronics.

Hi/Low/ Tone Control

12

13

148 NM ST manual 3.3 6/15/99 3:12 PM Page 14

OperationOp

Dimmer Control

Dimmer Control

Controls the brightness of the front panel, signal strength meter and channel display

146 NW ST SOUNDTRACKER CS CAI PA IN CAL DYNAMIKE AV MIN MAX VOCIC CLK MINER WIN MAX 40

For maximum brightness turn clockwise; counterclockwise for minimum illumination

USB/AM/LSB Switch

Cobra® 148NW ST SOUNDTRACK A SOLIC KONOCY VOLT-SOL RF GAIN- SRR CAL DYNAMICE VOIC FLOCK OFF MIN MAX MIN MAX

① Select mode of operation from USB to AM to LSB

RF Gain Control

RF Gain Control

The RF Gain is used to optimize reception in strong or weak signal areas.

Cobra 140 NW ST SOUNDTRACK A: VOUT-SQL VOUT-SQL RPGAIN-SNR CAL DYNAMIKE VOUT-LOCK

1 Rotate the RF Gain knob counterclockwise to reduce gain in strong signal areas. In weak signal areas turn clockwise to increase gain.

Voice Lock

140kW ST SoundTracker CAI PA MR CAL OYNA MUSE VOICESCK AND DIMMER MAX MIN MAX MIN MAX 40

Rotate to clarify receiver's frequencies above and below assigned frequencies. Primarily used to tune SSB signals as well as optimizing AM signals.

14

15

148 NW ST manual 3.3 6/15/99 3:12 PM Page 16

Operation Operation

Setting Squelch
Gate closed STRONG SIGNALS MEDIUM SIGNALS WEAK SIGNALS GATE CLOSED NOISE

Setting Squelch
Squelch is the "control gate" for incoming signals.

Cobra® 149 NM ST Sound OFF PR CAN SUI VOL- SOL RF GAIN- SUR CAL DWANKE VOICELOC MIN MAX MIN MAX

① Full Ⓞ clockwise rotation closes the gate allowing only very strong signals to enter.

Cobra® 140 MHz ST Sound Tin MIN 2.5 CALY OFF VOL→SQL HFRIN→SWR CAL DYNAMIKE MIN MAX MIN MAX OFF MIN MAX MIN MAX

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.

Gate set to Desired Squelch Setting (DSS)
STRONG SIGNALS MEDIUM SIGNALS WEAK SIGNALS NOISE GATE

Gate open
STRONG SIGNALS MEDIUM SIGNALS WEAK SIGNALS NOISE GATE OPEN

Cobra® 148 MHz ST SOUNDTRACK N/A OFF VOL- SOL RFCAIN- SWR CAL DYNAMIC OFF MIN MAX MIN MAX voiceLOCN

2 Full Ⓐ counterclockwise rotation opens the "gate" allowing all signals in.

16

17

148 NW ST manual 3.3 6/15/99 3:12 PM Page 18

OperationOp

Calibrate For SWR (Standing Wave Ratio)

Note

SWR calibration is done to properly adjust the length of the antenna and to monitor the quality of the coaxial cable and all RF connections. This calibration is critical in order to achieve optimum performance.

Calibrate for SWR (Standing Wave Ratio)
148 MW ST SoundTracker 20 CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI CAI

① Select channel 20.

Cobra' 140 MW ST SOUN MIN/ANL ANL OFF EA R/RF CAI SWR V MAX OFF MIN MAX MIN MAX

② Switch to the CAL position.
COBRA 148 NW ST - Note - 3
③ Push and hold mic button.

148 MW ST SOUNDTRACKER 40 MIN CAL. D'YANA.MIKE VOICELOCK DIM METER MAX MIN MAX MIN MAX

4 While holding mic button adjust the SWR CAL knob so the meter needle swings to the CAL ▼ mark on the meter (located on signal is not achieved adjustment to the lens be made. Recalibrate.

COBRA 148 NW ST - Note - 5

5 Repeat the same steps on Channel 1 and 40.
6 Continue holding the mic button and turn the SWR CAL knob to the SWR position for SWR measurement.

Note

Calibration must be made in an open area (never in a garage). Vehicle doors must be closed. No one should be standing near the antenna. (See your antenna directions for more complete information).

Note

The reading will be slightly higher on Channels 1 and 40 compared to Channel 20.

Note

When switched to SWR position the meter needle should ideally be as far to the left as possible. Anything over 3 is not acceptable. A slight antenna height adjustment (higher or lower) may be required. Repeat recalibration step.

18

19

148 NW ST manual 3.3 6/15/99 3:12 PM Page 20

Operation Operation

To Transmit

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.

Setting Dynamike

ToTransmit
149 NM ST SOUNDTRACKER CB CAI TSN V/VT CAL AM L/AN R/S TIN 40 WR CAL DYNAMIKE VOICELOCK DIMMER MAX MIN MAX MIN MAX

1 Select desired channel.

Setting Dynamike

This controls the microphone sensitivity (outgoing audio level).

Cobra® 148 NM ST SOUND Player A NEW ORDER VOL→ SOL RF/CAIN→ SWR CAL DRY/MOKE VOICELOCK OFF MIN MAX MIN MAX

Initially, set fully Ⓞ clockwise so that maximum voice volume is available. Dynamike may have to be reduced in some conditions.

Transmit

PUSH & HOLD

COBRA 148 NW ST - Setting Dynamike - 2

natural_image Line drawing of a handheld device with a grid screen and handle (no text or symbols)

1 Press 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

This meter swings proportionately to the RF output (outgoing signal) while transmitting.

S.Cobra® 140 MW ST SOUNDSPRING VOL-3 SOL RFGM-5-SNR CAL DYNAMKE VOICE CLK MIN MAX MIN MAX

The S/RF-SWR-CAL switch must be in the S/RF position.

Transmit

RF Meter

20

21

148 NW ST manual 3.3 6/15/99 3:12 PM Page 22

OperationOp

External Speaker

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

Cobra external speakers are rated at 10 watts. See Accessories page 39.

External Speaker

The external speaker jack is used for remote receiver monitoring.

ANX PASP. EXT + POWER

1 Connect an external speaker to the external speaker jack on the rear panel.

PA (Public Address)

ANT SP EXTSP. POWER-

① Connect an external PA speaker to the PA jack on the rear panel.

Cobra® 140 MW ST VOL-30L RF GAIN-SWR CAL DYNAMIC

② Set CB/PA switch to PA position.

PA (Public Address)

Note

Speaker should have 8-ohm impedance and be rated to handle at least 4.0 watts.

Note

The speaker should be directed away from the microphone to prevent acoustic feedback.

Note

Activity on the CB channel will be heard through the PA speaker. Adjust volume control to a normal listening level.

22

23

148 NM ST manual 3.3 6/15/99 3:12 PM Page 24

OperationOp

PUSH & HOLD

3 Push and hold microphone button and speak in a normal voice. Your voice will now transmit on the PA speaker.

S Cobra 149 MW ST Soundwave VOL- SOL VOUTM-SWR CAL SYMMIKE VOICE LOCK OFF MAX MAX MAX

4 Adjust PA speaker volume with the Dynamike control.

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.

power pack + - red black

Simply connect the red (+) and black (-) leads of the transceiver to the corresponding terminals of the power pack.

Base Station Operation (From 120V AC House Current)

COBRA 148 NW ST - Base Station Operation (From 120V AC House Current) - 2

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.

24

25

Temporary Mobile Set-Up

How Your CB Can Serve You

COERA ANT PA SP, EXT SP +POWER

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.

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 magnetic mount antenna allow you to quickly "install" your transceiver for temporary use.

COBRA 148 NW ST - Temporary Mobile Operation - 1

natural_image Line drawing of a laboratory setup with test tube, tubing, and clamp (no text or symbols)

A Few Rules You Should Know

Channel 9 Emergency Messages

Note

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 driving

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

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?

P roblem Give details and help needed.

Transmit CLIP repeatedly so any monitor can assist.

How Your CB Can Serve You

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 "Fire in building at 539 Main, Evanston."

No "Halloween patrol number 3. All quiet."

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 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 In 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 Identify your station

CB 10-Codes

Frequency RangesHo

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

The COBRA 148 NW ST 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.

ChannelChannel
CBFreq.CBFreq.
ChannelIn MHzChannelIn MHz

1269652127215

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

148 NW ST manual 3.3 6/15/99 3:12 PM Page 32

Limited One Year Warranty14

GENERAL
CHAWKERS40 AM 40 LSR 40 UDR
FREQUENCY RANGE26.95E TO 27.46S MIZ
RACEQUENCY CAN TAXPHASIS LOCK LOOP (WPS) SYNTHESIS
FREQUENCY LEAVANCE0.05%
FREQUENCY STABILITY0.01%
OPERATING TEMPERATURE RANGE30 °C TO 35 °C
OUTPUT FORCERUG IN ON OYNAMIC WITH PUSH TO 100K SWITCH
INPUT VOLTAGE38W DC 10W, 15W MAX, 117W MIN
(POSITIVE OR NEGATIVE GROUND)
CURRENT CHAINTRANSMIT:AM INT'L W/O,22A 30E12
WITS PER OUTPUT:2A
RECEIVE SUELED-D, 0.25A MAX AUDIO
OUTPUT:0BA
SIZE2.3" BHA 7.7" W/ W X 9.14" D
WEIGHT5.86
ANTHAW CONNECTORUHF-30 299
COLOR LIGHT EMPTIVE DOCRE
METERILLUMINATED INDICATES RELATIVE POWER
OUTPUT RECHINI SIGNAL STRNGTH AND PWM
TRANSMITTER
POWER OUTPUTAW 4 W/ WTS 583 12 W/ WTS, P/EP
VOCULATIONHIGH- AND LOW-LEVEL CLASS AM PLITUDE
MODULATION
INTERMOOLATION DISTORTIONSEE 500 OFFER, MORE THAN 25dB
S1H ORDER MORE THAN 35dB
SSC/CAMBER SUPPRESSION55 dB
UNWATER SIDEANCE50 dB
REQUENCY RESPONSEAMAND SSB 300 TO 2500 Hz
OUTPUT PERFORMANCESO CHENS UNWALDED
OUTPUT INDICATORSMELETS IOWS RELATIVE IF OUTPUT POWER
AND SWAT TRANSMIT I/O FOR CONFRID
WHEN TRANSMIT IS IN OPERATION
RECEIVER
SENSIVITY58/82.5% IF FOR 10% OF 54/82.5%N/AI
GREATER THAN 1/2 W/ATT OF AUDIO OUTPUT
AM 50% IF FOR 10% OF 54/82.5%N/AI
GREATER THAN 1/2 W/ATT OF AUDIO OUTPUT
SELECTIVITYWZ 78 kHz 50 dB 90 dB
SWB 5 dB 11 AWD 80 dB 23 kHz
MAGE REDUCIONMORE THAN 55 dB
ADJACENT CHANNEL SELECTION80 dB AW 70 dB/88
FREQUENCYWZ 78 MHz/15T 455 kHz 2ND IF
0.85" 7 MHz
AM & SRRP GAIN CONTROL410 CADUSLAS E-FOR OP RUM SIGNAL
RECEPTIONLESS THAN 10 dB CHWIND IN AUDIO OUTPUT
AUTOMATIC CAN CONTROL ADDLESS THAN 10 dB CHWIND IN AUDIO OUTPUT
FOR INPUTS FROM 10 TO 10000 NAOVOLTS
MORE BLANZERF TYPE EFFECTING ON AMAND 583
ANLSWITCHABLE
CONTROLROUTABLE THRESHOLD LESS THAN 0.25 μV
VOTEL LOCK RANGE-1.5 kHz
AUDIO OUTPUT FLOWE4 W/WS INTO 8 OHMS
FREQUENCY RESPONSE300 TO 2500 Hz
OUTRONTIONLESS THAN 10 dB CHWIND @ 000Hz*
SAFE SWITCH3 OHMS 6 W/WS
EXTERNAL SPAGE (NOI SUPPLY)8 OHMS DISABLES INTERNAL SPEAKY WHEN
CONNECTED
PA SYSTEM
POWER OUTPUT4 W/WT INCE EXTERNAL SPEAKW
EXTERNAL SPAGE FOR IM8 OHM, 4 W/WT MIN
(NOT SUPPLIED)
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

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) year from 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 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.

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.

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.

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.

COBRA 148 NW ST - Limited One Year Warranty14 - 1
Cobra Electronics Corporation
6500 West Cortland Street Chicago, Illinois 60707

Optional AccessoriesOp

COBRA 148 NW ST - Optional AccessoriesOp - 1
Replacement DC Power Cord

For in vehicle use 420-071-9-001 \$7.50

COBRA 148 NW ST - Optional AccessoriesOp - 2
Replacement Microphone Bracket

For in vehicle use 741-080-9-001 \$0.45

COBRA 148 NW ST - Optional AccessoriesOp - 3
39" Full Range Base Load, Magnetic Mount Antenna

For in vehicle use AT 70 \$24.95

COBRA 148 NW ST - Optional AccessoriesOp - 4
Replacement Mounting Bracket

For in vehicle use 250-044-N-001 \$4.50

COBRA 148 NW ST - Optional AccessoriesOp - 5
28" Full Range Center Load, Magnetic Mount Antenna

For in vehicle use AT 35 \$19.95

COBRA 148 NW ST - Optional AccessoriesOp - 6
44" Full Range, Center Load, Dual Band CB/WX Antenna

Allows greater transmission range while in a moving vehicle. ATW-400\$27.95

COBRA 148 NW ST - Optional AccessoriesOp - 7
Replacement Thumb Screws

For in vehicle use 634-088-9-001 \$0.60

COBRA 148 NW ST - Optional AccessoriesOp - 8
25"Glass Mount Antenna

For in vehicle use AT 55 \$27.95

COBRA 148 NW ST - Optional AccessoriesOp - 9
Replacement Dynamic Microphone

For in vehicle use CA 73 \$12.95

COBRA 148 NW ST - Optional AccessoriesOp - 10
Power Microphone

For in vehicle use CA 75 \$21.95

COBRA 148 NW ST - Optional AccessoriesOp - 11
Dynamic External Speaker

For in vehicle use CS 100 \$14.95

COBRA 148 NW ST - Optional AccessoriesOp - 12
Noise Canceling/Power Microphone

For in vehicle use CA 77 \$24.95

COBRA 148 NW ST - Optional AccessoriesOp - 13
Noise Canceling External Speaker

For in vehicle use CS 300 \$19.95

COBRA 148 NW ST - Optional AccessoriesOp - 14
Echo/Noise Canceling Microphone

For in vehicle use CA 79 \$59.95

COBRA 148 NW ST - Optional AccessoriesOp - 15
Dynamic Noise Canceling With Talk Back External

Speaker For in vehicle use CS 500 \$24.95

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.-8 p.m. M-F CST.

Order by mail or fax

Please fill out order form on next page, and mail/fax directly to Cobra.

148 NM ST manual 3.3 6/15/99 3:12 FM Page 36

Accessory Order Form

Item # Description Cost Ea. Qty. Amount
420-071-9-001Replacement DC Power Cord7.50
250-044-N-001Replacement Mounting Bracket4.50
634-088-9-001Replacement Thumb Screws0.60
741-080-9-001Replacement Microphone Bracket SCD45
AT 3528"Full Range Center Load,Magnetic Mount Antenna19.95
AT 5525"Glass Mount Antenna27.95
AT 7039"Full Range Base Load,Magnetic Mount Antenna24.95
ATW 40044"Full Range Center Load,Dual Band CB/WX Antenna27.95
CA 73Replacement Dynamic Microphone12.95
CA 75Power Microphone21.95
CA 77Noise Canceling/Power Microphone24.95
CA79Echo/Noise Canceling Microphone53.95
CS 100Dynamic External Speaker14.95
CS 300Noise Canceling External Speaker19.95
CS 500Dynamic Noise CancelingWith Talk Back External Speaker24.95

Shipping & Handling

Amount of OrderShipping/ Handling
25.00 and under4.75 minimum
25.01-40.006.95
40.01-80.009.00
80.01-120.0010.00
120.01-160.0011.50
160.01 and up14.25

For AK.HI and PR please add an additional \$15.00 for UPS shipments.

For credit card orders fill out order form and fax to: 1.773.622.2289or call 1.773.889.3087(Press 1 from the main menu)Please print clearlyNameAddress (No P.O.Box)City StateZipTelephone ( __ )Credit Card No. Exp.DateCustomer Signature8:30 am - 8:00 pm M+F.CST.Make check or money order (no stamps)payable to:Cobra Accessories Dept.6500 West Corland St Chicago, IL 60767

Circle One: Visa MasterCard Discover Allow 4 to 6 weeks for delivery. Offer valid in Continental U.S. only.

148 NW ST manual 3.3 6/15/99 3:12 PM Page 37

Cobra®

Cobra Electronics Corporation 6500 West Cortland Street

Chicago, IL60707

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 - 8:00 pm, Monday through Friday, CST.

Technical assistance is also available on-line in the Frequently Asked Questions (FAQ) section at www.cobraelec.com or by e-mail to productinfo@cobraelec.com

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 following 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. © 1999

Printed in China

Part No. 480-301-P-001

Cobra ^® 148 NW ST

Operating Instructions for your Cobra 148 NW ST

CB Radio

Cobra 143 MHz Ultrasonic ACORI-50207 VOL+50207 ST. GATHA-5000 CAL. DYNAMIC WOSCLOCK 40 Continuous

COBRA 148 NW ST - CB Radio - 2

COBRA 148 NW ST - CB Radio - 3

"Ingenious Products for Easier Communication."

148 NM ST manual 3.3 6/15/99 3:12 FM Page 39

The CB Story

Diagram of a portable radio receiver with labeled parts 1 and 2, showing front panel and control buttons.

COBRA 148 NW ST - The CB Story - 2

COBRA 148 NW ST - The CB Story - 3

COBRA 148 NW ST - The CB Story - 4

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 "broadcasting."

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 operator's license.

What's Included with Your 148 NW ST

  1. CB transceiver DC power cord

  2. Microphone FCC rules

  3. Transceiver bracket (not shown)

  4. Microphone bracket

  5. Operating Manual

A1

Controls and Indicators

Our Thanks to You

1.4-Pin Microphone Connector
2. Power On/Off, Volume
3. Squelch
4. RFGain/SWRCal
5. Dynamike
6. Voicelock
7. Dimmer Control
8. Channel Selector
9. LED Channel Display
10SoundTracker™ LED
11 RX(Receive)/TX(Transmit) LED Indicator
12SoundTracker™ On/Off
13 Hi/Lo Tone Switch
14USB/AM/LSB Switch
15S/RF/CAL/SWR Switch
16CB/PA Switch
17NB/ANL/ANL/Off Switch
18Signal Strength Meter
19 Microphone
Back Side
20 Public Address Speaker Jack
21 External Speaker Jack
22 Antenna Connector
23 Power Jack

19 17 16 15 14 13 11 18 10 40 9 1 2 3 6 20 22 CD/CDuser 1920.01.01.02.03.04.05.06.07.08.09.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.

Thank you for purchasing the Cobra 148 NW ST CB Radio.Properly used,this Cobra product will give you many years of reliable service.

SoundTracker™

"Cuts noise coming in...strengthens signals going out."

This Patent pending technology dramatically improves transmission and reception of CB signals.

The revolutionary SoundTracker™System reconfigures the transmission signal which allows it to be transferred more efficiently through cluttered airwaves.

At the same time, it significantly reduces the amount of static on all incoming CB signals.

The end result is a cleaner, clearer sounding reception of signals and a more powerful transmission which dramatically improves CB communications.

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.

Cobra Customer Service

Live operators are available M-F 8:00 am - 8:00 pm CST at: 773.889.3087

Automated Technical Assistance available 24 hours a day.seven days a week.E-mail questions to: productinfo@cobraelec.com

Cobra on the World Wide Web: Frequently Asked Questions (FAQ) can be found on-line at: www.cobraelec.com

148 NW ST manual 3.3 6/15/99 3:12 PM Page 43

NotesNo

Notes Notes

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Product information

Brand : COBRA

Model : 148 NW ST

Category : Car radio