Cobra 18WXST II User Manual

How to Use Your

Cobra 18WXST II

Contents

Features ..........................................1

The CB Story .................................... A1

Licensing/Warning/Included Accessories ...... A1

Controls and Indicators .........................A2

Our Thanks to You .............................. A3

Customer Support ........................... A3

Operating Your CB Mobile Radio

Installation/Connection............................2

Turning On........................................4

CB Antenna .......................................4

Microphone Connector ............................5

Squelch ...........................................5

Setting Squelch ...................................6

Channel Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Channel 9/19......................................8

CB/Weather .......................................8

Dual Watch.........................................

Scan ..............................................9

SoundtrackerSystem .............................10

Activating Soundtracker System ..................11

S/RF Power Meter ................................12

RX/TX Indicator LED ..............................12

Antenna Connector ..............................13

External Speaker .................................13

Power............................................13

Ignition Noise Interference .......................14

Temporary Mobile Operation . . . . . . . . . . . . . . . . . . . . .14

Operation to Receive/Transmit....................15

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Frequency Ranges................................18

Specifications....................................19

Accessories...................................20, 21

Accessories Order Info............................22

Warranty ........................................23

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

Features of This Product

• 40 CB Radio Channels

• 10 Weather Channels

• Soundtracker®

• Instant Channel 19 and 9

• 40 Channel Scan

• Dual Watch

• Front Firing Speaker

• Channel Saver Circuitry

• Dynamic Microphone

• 9 Foot Mic Cord

• Front Panel Microphone Connector

System

SQUELCH

VOLUME

SCAN

S 1 3 5 9 +30

P .5 1 2 3 4

CB / WEATHER

CH 9 / 19

18 WX ST II

Operation

Installation

Mounting and Connections

Note

The transceiver is held in the universal mounting bracket by two thumb screws, permitting adjustment at the most con venient angle.

A universal mounting bracket is supplied along with self tapping screws and star washers. To mount the transceiver:

Mounting and Connections

Select a location for the transceiver and microphone bracket that is con ve nient for operation. In automobiles, the transceiver is usually mounted to the underneath of the dash panel, with the microphone bracket beside it.

1 Hold the radio with mounting bracket in the

exact location desired. Remove the mounting bracket and use it as a template to mark the location for the mounting screws.

CB Tranceiver

CB Transceiver

2 Drill necessary holes and secure mounting

bracket in lo ca tion.

3 Connect the antenna cable plug to the re cep ta-

cle marked “ANT” on the back of the unit.

EXT. SPKR.

POWER

13.8V DC

ANTENNA

4 Connect the red lead of DC power cord to an

accessory 12 volt fuse.

5 Connect the orange lead to a constant 12v fuse

(ie: cigarette lighter or direct to battery)

6 Connect the black lead to the negative side of

the au to mo bile. This is usually the chassis. Any con ve nient location with good electrical contact (remove paint) may be used.

7 Mount the microphone bracket on right side of

the transceiver or near it using two screws supplied. When mount ing in an automobile, place the bracket under the dash so the microphone is readily accessible.

8 Attach the 4-pin microphone cable to recep-

tacle on front of unit and install unit in bracketsecurely.

Operation

Installation

Mounting and Connections

Note

Before installing the CB radio, visually check the ve hi cle battery connections to determine which battery ter mi nal, positive or negative (positive is the larger of the two) is grounded to the engine block (or chassis).

Operation

Turning on Your Radio

CB Antenna

Note

Cobra load ed-type antenna models HGA 1000, HGA 1500, and HGA 2000 are highly recom mend ed for most installations. Consult your Cobra dealer for further details (or see order form at the back of this book).

3-Way Combination Antennas are available which allow op era tion of all three bands (AM-FM & CB), using a single antenna. However, use of this type of antenna usually results in less than normal transmit and receive range when com pared to a standard-type “Single Band” antenna designed for CB only.

Turning on

Turn volume control clockwise to turn power on and set the desired listening volume.

OFF

CB Antenna

Only a properly matched antenna system will allow maximum power output.

In mobile installations (cars, trucks, boats, etc.), an antenna system that is non-directional should be used.

When installed in a boat, the transceiver will not operate at maximum efficiency without a ground plate unless the vessel has a steel hull. Before installing the transceiver in a boat, consult your dealer for information regarding an adequate grounding system.

Microphone Connector

Allows for convenient removal of the microphone plug when storage is required. The microphone MUST be connected to the unit at all times when in use, for proper operation.

OFF

Squelch

This control is used to cut off or elim i nate receiver background noise in the absence of an incoming signal. Adjust until the receiver noise disappears. This will require the incoming signal to be slightly stronger than average receiver noise. Further clockwise rotation will increase the threshold level which a signal must overcome in order to be heard. Only strong signals will be heard at a maximum clockwise setting.

OFF

Operation

Microphone Connector

Squelch

SHIELD

AUDIO

OPEN

Operation

Setting Squelch

Gate closed

STRONG SIGNALS

MEDIUM SIGNALS

WEAK SIGNALS

NOISE

Gate open

STRONG SIGNALS

MEDIUM SIGNALS

Setting Squelch

Squelch is the “control gate” for incoming signals.

1. Full clockwise rotation closes the gate

OFF

GATE CLOSED

allowing only very strong signals to enter.

OFF

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.

OFF

Operation

Gate set to Desired Squelch Setting (DSS)

STRONG SIGNALS

MEDIUM SIGNALS

WEAK SIGNALS

NOISE

GATE

WEAK SIGNALS

NOISE

GATE

2. Full counterclockwise rotation opens the “gate” allowing all signals in.

Operation

Channel Selection

Channel 9/ Channel 19

CB Weather

Set CB or WX Mode

Set on CB mode. Rotate channel knob clockwise until desired channel is displayed.

Channel 9/Channel 19

Press CH 9/19 to obtain instant access to emergency channel 9. Press again for information CH 19.

PRESS AND RELEASE

CB/Weather

CB mode is for normal CB operation. Press CB/ Weather again and select active Weather channel in your area.

PRESS AND RELEASE

Dual Watch

This features allows the user to scan between two selected channels.

1. Select first channel, CB mode.

PRESS AND HOLD

OFF

2. Press and hold DW until LED begins flashing and beeps once.

3. Select second channel. Press DW until LED lights steady and radio beeps twice. Two channels are now stored in DW memory.

Scan

Press and release SCAN button to activate CB scan mode. If the radio is squelched, radio begins to

PRESS AND RELEASE

scan. When scan is interrupted by a signal, scan stops and

holds until loss of signal. Press PTT on mic to stop scan function. Press Scan to restart CB scan.

Operation

Dual Watch

Note

The radio needs to be squelched before DW can monitor both channels.

Scan

Note

On some channels squelch setting might have to be re-set.

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