Cobra 18 WXST II User manual

1
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........................................9
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
Warranty ........................................22
If You Think You Need Service ..........Back Cover
Features of This Product
•40 CB Radio Channels
•10 Weather Channels
•Soundtracker®System
•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
How to Use Your
Cobra 18WXST II
18WXSTIIC_MANL_ENG.indd 1 11/14/13 9:09 AM

3
 Connect the red lead of DC power cord to an
accessory 12 volt fuse.
 Connect the orange lead to a constant 12v fuse
(ie: cigarette lighter or direct to battery).
 Connect the black lead to the negative side of
the automobile.This is usually the chassis.Any
convenient location with good electrical contact
(remove paint) may be used.
 Mount the microphone bracket on right side of
the transceiver or near it using two screws sup-
plied.When mounting in an automobile, place
the bracket under the dash so the microphone
is readily accessible.
 Attach the 4-pin microphone cable to receptacle
on front of unit and install unit in bracket securely.
Mounting and
Connections
Note
Before installing the CB radio,
visually check the vehicle bat-
tery connections to determine
which battery terminal, posi-
tive or negative (positive is the
larger of the two) is grounded
to the engine block
(or chassis).
Operation
2
Mounting and Connections
Select a location for the transceiver and micro-
phone bracket that is convenient for operation.
In automobiles, the transceiver is usually mount-
ed to the underneath of the dash panel, with the
microphone bracket beside it.
 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.
 Drill necessary holes and secure mounting
bracket in location.
 Connect the antenna cable plug to the recepta-
cle marked “ANT” on the back of the unit.
Mounting and
Connections
Note
The transceiver is held in the
universal mounting bracket by
two thumb screws, permitting
adjustment at the most conve-
nient angle.
A universal mounting bracket
is supplied along with self tap-
ping screws and star washers.
To mount the transceiver:
Operation Installation Installation
CB Tranceiver
EXT. SPKR.
POWER
13.8V DC
ANTENNA
CB Transceiver
18WXSTIIC_MANL_ENG.indd 2-3 11/14/13 9:09 AM

5
Marine Istallation
When installed in a boat, the transceiver will not oper-
ate 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 informa-
tion 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.
Squelch
This control is used to cut off or eliminate 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 stron-
ger than average receiver noise.Further clockwise
rotation will increase the threshold level which a sig-
nal must overcome in order to be heard.Only strong
signals will be heard at a maximum clockwise setting.
Microphone
Connector
Operation
OFF
Squelch
4
Turning on
Turn volume control clockwise to turn power on
and set the desired listening volume.
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.
*Under Industry Canada regulations, this radio trans-
miter may only operate using an antenna of a type
and maximum (or lesser) gain approved for the trans-
mitter by Industry Canada.To reduce potential radio
interference to other users, the antenna type and its
gain should be so chosen that the equivalent isotrop-
ically radiated power (e.i.r.p.) is not more than that
necessary for successful communication.
Safety notice: The device complies with the MPE
requirements by providing a safe separation distance
of 14.2 in (36 cm) between the antenna, including
any radiating structure, and any persons when nor-
mally operated .This is based on a typical installa-
tion and an antenna with 3 dBi of gain.This device
is approved with emissions having a source-based
time-averaging duty factor not exceeding 50%.
Turning on Your
Radio
Operation
CB Antenna
OFF
Note
For optimum performance in
passenger cars the ideal antenna
location is on the center of the
roof. Second choice is on the cen-
ter of the trunk.
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 the
mirror bracket.
3-Way Combination Antennas
are available which allow oper-
ation 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 compared to a stan-
dard-type “Single Band” antenna
designed for CB only.
18WXSTIIC_MANL_ENG.indd 4-5 11/14/13 9:09 AM

NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
GATE CLOSED
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
GATE OPEN
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
7
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.
Operation
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
GATE
Gate set to Desired
Squelch Setting (DSS)
OFF
6
Operation
Gate open
Gate closed
Setting Squelch Setting Squelch
Squelch is the “control gate” for incoming
signals.
1. Full clockwise rotation closes the gate
allowing only very strong signals to enter.
2. Full counterclockwise rotation opens the “gate”
allowing all signals in.
OFF
OFF
18WXSTIIC_MANL_ENG.indd 6-7 11/14/13 9:09 AM

9
Dual Watch
This features allows the user to scan between two
selected channels.
1. Select first channel, CB mode.
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 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.
Channel
Selection
Operation
8
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.
CB/Weather
CB mode is for normal CB operation.Press CB/
Weather again and select active Weather channel in
your area.
Operation
OFF
OFF
PRESS AND RELEASE
OFF
Channel 9/
Channel 19
CB Weather
Dual Watch
Note
The radio needs to be
squelched before DW can
monitor both channels.
OFF
Scan
Note
On some channels squelch
setting might have to be re-set.
PRESS AND HOLD
OFF
PRESS AND RELEASE
PRESS AND RELEASE
18WXSTIIC_MANL_ENG.indd 8-9 11/14/13 9:09 AM

11
Activating Soundtracker®
1. Press the SoundTracker® button on the upper
left side of front panel.A red indicator will
illuminate when the SoundTracker® system is
engaged.
Activating
Soundtracker®
Operation
10
The SoundTracker® System reduces noise while
leaving the signal intact in the reception mode.
In the transmission mode, it strengthens the sig-
nal, providing you with a significant reduction in
noise on reception and transmission.
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 by 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.
Operation
OFF
PUSH AND RELEASE
USPat. No. 6,038,429
Soundtracker®
System
18WXSTIIC_MANL_ENG.indd 10-11 11/14/13 9:09 AM

13
Rear Panel
Antenna Connector. This female connector per-
mits connection of the transmission line cable
male connector to the transceiver.
External Speaker. The External Speaker Jack is
used for an external speaker.The external speak-
er 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.
Power: This cable is permanently attached to the
radio. If you wish to remove the radio after instal-
lation, disconnect at fuse holder and ground
connector.
Antenna
Connector
Operation
12
S/RF Power Meter
Shows relative transmitter RF output power and
input signal strength when receiving.The LED
(Light Emitting Diode) segments glow green to
amber to red...this indicates receive or transmit
activity.
RX/TX Indicator LED
RX indicator will light when in the receive mode.
TX indicator lights when in transmit mode.
When weather channel is selected, WX indicator is
illuminated, and the channel is displayed.
S/RF
PowerMeter
Operation
OFF
OFF
RX/TX
Indicator LED
External Speaker
EXT. SPKR.
POWER
13.8V DC
ANTENNA
Power
Note
Cobra external speakers are
rated 15 watts
18WXSTIIC_MANL_ENG.indd 12-13 11/14/13 9:09 AM

15
Operating Procedure to Receive
1. Be sure that power cord, antenna and microphone are connected to the
proper connectors before proceeding further.The weather switch should
be in the “CB” position.
2. Turn the radio ON by rotating the VOLUME CONTROL clockwise.
3. Rotate SQUELCH CONTROL counterclockwise until incoming signal is
heard.
4. Select the desired channel.
5. Set VOLUME CONTROL to a comfortable listening level.
6. Engage the SoundTracker system by depressing the button labeled ST.
Listen to the background noise from the speaker.Turn the SQUELCH
CONTROL slowly clockwise until the noise JUST disappears (no signal
should be present).Leave the control at this setting.The squelch is now
properly adjusted.The receiver will remain quiet until a signal is actually
received. Do not advance the control too far, or some of the weaker signals
will not be heard.The revolutionary SoundTracker system allows you to
reduce unwanted background noise (static) and increase the signal for bet-
ter reception.
Operating Procedure to Transmit
1. Select the desired channel.
2. The receiver and transmitter are controlled by the press-to-talk switch on
the microphone.Press the switch and the transmitter is activated; release
switch to receive.When transmitting (on a clear channel), hold the micro-
phone two inches from the mouth and speak clearly in a normal voice.
Be sure the antenna is properly connected to the radio before transmit-
ting. Prolonged transmitting without an antenna, or a poorly matched
antenna, could cause damage to the transmitter.
Operation
14
Ignition Noise Interference
Use of a mobile receiver at low signal levels is nor-
mally limited by the presence of electrical noise.
Under most operating conditions, when signal
level is adequate, the background noise does not
present a serious problem.Also, when extremely
low level signals are being received, the transceiv-
er may be operated with vehicle engine turned off.
The unit requires very little current and therefore
will not significantly discharge the vehicle battery.
Even though this radio has an automatic noise lim-
iter, in some installations ignition interference may
be high enough to make good communications
impossible.Consult your COBRA dealer or a 2-way
radio technician for help in locating and correcting
the source of severe noise.
Temporary Mobile Operation
For temporary mobile operation, you may want to
purchase an additional 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.
Operation
Temporary
Mobile Operation
Note
Red and Orange wires are
connected to positive side of
socket center tip. Black wire is
connected to negative side
contacts.
Note
Radio resets to CH 9 when con-
nected to cigarette lighter plug.
EXT
ANT
13.8V DC
PA
Ignition Noise
Interference
Note
When using the unit with
cigarette adapter, turn off
when not in use to avoid
draining the battery.
18WXSTIIC_MANL_ENG.indd 14-15 11/14/13 9:09 AM

16
Maintenance
Maintenance and Adjustment
Your COBRA CB transceiver is specifically
designed for the environment encountered in
mobile installations.The use of all solid state cir-
cuitry and its light weight result in high reliabil-
ity. Should a failure occur, however, review the
following, then if necessary, replace parts only
with identical parts.Do not substitute.
1. Check connections to the source of power and
make sure it is the 13.8 VDC required to oper-
ate your radio.
2. Check the fuses in the DC power cord.The
main power lead (red & orange wire) has a 2
amp 3AG type fuse in its holder.Use only the
above specified type and size fuse for maxi-
mum protection.Failure to do so, will void the
warranty.
3. Make certain the microphone is properly
plugged in.
4. Make certain the antenna is properly assem-
bled and connected.
If you are unable to correct the problem, refer
to the SERVICE INSTRUCTIONS at the end of this
manual for the correct procedure for warranty
and post-warranty service from COBRA.
Permitted: “A tornado sighted six miles of town.”
Not Permitted : “This is observation post number 10.
No tornado sighted.”
Warning
17
Channel 9
Emergency
Messages
Replacement Warning
Replacement or substitution of certain parts with
replacements other than those recommended
by Cobra may be a violation of the technical
regulations of Part 95 of the FCC rules, or of Type
Acceptance requirements of Part 2 of said rules.
When making adjustments, be sure to re-read
applicable portions of this instruction manual to
make certain you are following correct procedure
and that the radio was properly installed, etc.
A Few Rules That Should Be Obeyed
1. You are not allowed to carry on a conversation with
another station for more than five minutes at a time with-
out taking a one-minute break to give others a chance to
use the channel.
2. You are not allowed to blast others off the air by over-
powering them with illegally amplified transmitter power
or illegally high antennas.
3. You can’t use CB to promote illegal activities.
4. You are not allowed to use profanity.
5. You may not play music in your CB.
6. You may not use your CB to sell merchandise or profes-
sional service.
Use Channel 9 For Emergency Messages Only
The FCC gives the following examples of permit-
ted and prohibited types of communications for
use on Channel 9.These are guidelines and are
not intended to be all-inclusive.
A Few Rules You
Should Know
18WXSTIIC_MANL_ENG.indd 16-17 11/14/13 9:09 AM

19
Accessories
18
Specifications
GENERAL
CHANNELS . . . . . . . . . . . . . . . . . . . . . . . . .CB - 40 CH
WEATHER – 10CH
FREQUENCY RANGE ................CB - 26.965 TO 27.405 MHZ
WEATHER – 161.650 TO 163.275
FREQUENCY TOLERANCE ...........0.005 %
FREQUENCY CONTROL .............PLL (PHASE LOCK LOOP) SYNTHESIZER
OPERATING TEMPERATURE
RANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-30° C TO + 65° C
MICROPHONE . . . . . . . . . . . . . . . . . . . . . .PLUGIN DYNAMIC
INPUT VOLTAGE ...................13.8VDC nom.(negative ground)
CURRENT DRAIN TRANSMIT: AM FULL MOD., 1.4A MAXIMUM
RECEIVE: SQUELCHED, 0.9 A;
FULL AUDIO OUTPUT, 1.2A NOMINAL
SIZE ..............................67/8” D X 63/4” W X 17/8” H
WEIGHT ...........................4.25 LBS.
ANTENNA CONNECTOR ...........UHF; SO239
METER.............................LED; 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
SELECTIVITY.......................6 dB  7 KHZ, 60 DB  10KHZ
IMAGE REJECTION.................60 dB, TYPICAL
ADJACENTCHANNEL REJECTION..50 dB, TYPICAL
ATOMATIC NOISE LIMITER.........BUILTIN
WEATHER
SENSITIVITY .......................LESS THAN 1 ΜV FOR 12 dB SINAD
IFFREQUENCY ....................DUAL CONVERSION
AUDIO OUTPUT ...................MAXIMUM 1 W AT 10% DISTORTION
FREQUENCY RESPONSE ...........300  3000 HZ AT 6 dB
Frequency Ranges
The COBRA 18 WX ST II 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 pro-
viding complete coverage of all 40 CB channels and all
10 weather channels as shown below.
126.965 21 27.215
226.975 22 27.225
326.985 23 27.255
427.005 24 27.235
527.015 25 27.245
627.025 26 27.265
727.035 27 27.275
827.055 28 27.285
927.065 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
Weather Weather
Freq.
Channel In MHz
1 162.550
2 162.400
3 162.475
4 162.425
5 162.450
6 162.500
7 162.525
8 161.650
9 161.775
10 163.275
18WXSTIIC_MANL_ENG.indd 18-19 11/14/13 9:09 AM

20
Accessories
Replacement Mounting
Bracket
251-199-9-001
Replacement Thumb Screws
634-081-9-001
Replacement Microphone
Bracket
741-080-9-001
Base Loaded Magnet Mount
Antenna
HG A1500
Base Loaded Magnet Mount
Antenna
HG A1000
Dynamic External Speaker
HG S100
Noise Canceling External
Speaker
HG S300
Dynamic Noise Canceling With
Talk Back External Speaker
HG S500
Accessories
21
4-Pin Power Microphone
HG M75
4-Pin Noise Canceling
Microphone
HG M77
4-Pin Replacement Dynamic
Microphone
HG M73
4 Pin Premium Noise-
Cancelling Microphone
HG M84
4 Pin Premium Noise-
Cancelling Microphone
Wood Grain
HG M84W
5 Pin Premium Noise-
Cancelling Microphone
HG M85
You can find quality Cobra products and accessories at
your local Cobra dealer.
Fiberglass Antenna
HG A300 FG
Stainless Steel Antenna
HG A7000
Fiberglass Antenna
HG A400 FG
18WXSTIIC_MANL_ENG.indd 20-21 11/14/13 9:09 AM

23
Limited Two Year Warranty
For Products Purchased in Canada
Your new Cobra CB radio is covered by a two year replacement warranty.
If any manufacturing defect becomes apparent in this product within two
years from the original date of purchase, it will be replaced. Please return
the CB radio to your dealer with original or copy of dated proof of pur-
chase. This warranty does not cover damages due to careless handling,
negligence, accident, abuse or failure to follow operating instructions.
Alteration of this product or defacing of the serial number cancels all
obligations of this warranty. This warranty gives you specified legal rights.
Additional warranty rights may be provided by law in some areas.
For Products Purchased in the U.S.A.
Cobra Electronics Corporation warrants that its Cobra CB radios, and the
component parts thereof, will be free of defects in workmanship and
materials for a period of two years from the date of first consumer pur-
chase. 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.
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 dam-
aged 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 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.
Cobra Electronics
Corporation
6500 West Cortland Street
Chicago, Illinois 60707 USA
www.cobra.com
22
NOTES
18WXSTIIC_MANL_ENG.indd 22-23 11/14/13 9:09 AM

The Cobra line of quality products
also includes:
•CB Radios
•microTALK® Radios
•Radar/Laser Detectors
•Safety Alert® Traffic Warning Systems
•HighGear® Accessories
•CobraMarine® VHF Radios
•Power Inverters
•Accessories
For more information or to
order any of our products,
please visit our website:
www.cobra.com
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL 60707
NOTES
18WXSTIIC_MANL_ENG.indd 24-25 11/14/13 9:09 AM

Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL 60707 USA
©2013 Cobra Electronics Corporation
Printed in China
Part No. 480-912-P-001 Version B
For technical assistance, please call our Automated Help Desk which can assist
you by answering the most frequently asked questions about Cobra products.
(Technical assistance is also available on-line in the Frequently Asked Questions (FAQ)
section at www.cobra.com or by e-mail to [email protected])
If you think you need service, contact your local dealer.
If You Think You Need Service 18 WX ST II C
Mobile Radio
with System
Operating Instructions for your
18 WX ST II C
Nothing Comes Close to a Cobra®
Cobra®, HighGear®, SoundTracker®, 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.
18WXSTIIC_MANL_ENG.indd 26-27 11/14/13 9:09 AM

CB Tranceiver
18 WX ST II C
Mobile Radio
with System
Operating Instructions for your
18 WX ST II C
Nothing Comes Close to a Cobra®
18 WX ST II
OFF
OFF
A1
The Citizens Band Story
4
5
21
3
IC & FCC Regulations
Industry Canada Notice: This device complies with Industry Canada
licence-exempt RSS standard(s). Operation is subject to the following
two conditions: 1) this device may not cause interference, and 2) this
device must accept any interference, including interference that may
cause undesired operation of the device.
«IC» before the equipment certification number signifies that the
Industry Canada technical specifications were met. It does not guaran-
tee that the certified product will operate to the user’s satisfaction.
FCC Regulations
FCC regulations permit only “transmission” (one-party to another)
rather than “broadcast” (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 man-
ufacturer 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 CB Radio:
1.CB transceiver 6.FCC rules
2.Microphone .(not pictured)
3. Transceiver bracket 1.
4. Microphone bracket
5.Operating Manual
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.)
18WXSTIIC_MANL_ENG.indd 28-29 11/14/13 9:09 AM

18 WX ST II
OFF
OFF
EXT. SPKR.
POWER
13.8V DC
ANTENNA
A2
Controls and Indicators
Thank you for purchasing the Cobra 18 WX ST II
CB Radio Transceiver.Properly used, this Cobra
product will give you many years of reliable service.
“Cuts Static coming in, adds Punch going out!”
Technology that dramatically improves the
transmission and reception of CB radio signals.
The revolutionary SoundTracker®System
reconfigures the transmission signal which allows
it to be transferred more effectively through
cluttered airwaves.
At the same time, it significantly reduces the
amount of static on all incoming CB signals.
The end result is a clearer, cleaner sounding
reception of signals and a more powerful
transmission which dramatically improve
CB communications.
Customer Support
Should you encounter any problems with this
product, or not understand its many features,
please refer to this owner’s manual.If, after refer-
ring to the manual, you still need help, Cobra
Electronics offers the following assistance services:
Automated Technical Assistance available 24
hours a day, seven days a week.E-mail questions
to: [e-mail]
Cobra on Web:
Frequently Asked Questions (FAQ) can be found
on-line at: www.cobra.com
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1. Microphone Connector.
2. Off/On/Volume.
3. Squelch.
4. Channel 9/Channel 19
5. CB/Weather
6. Channel Selector Button.
7. LED Channel Display.
8. S/RF Power Meter.
9. WX Indicator LED.
10. TX Indicator LED.
11. RX Indicator LED.
12. Scan Button.
13. SoundTracker™ Button.
14. Dual Watch Button.
15. Microphone
Back Side
16. Antenna Connector
17. External Speaker Connector
18. Power Cord
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