29 UK-English.qx 6/22/99 12:15 PM Page 36
Downloaded from www.cbradio.nl
UK 29 LTD ST
Cobra Electronics Corporation
6500 West Cortland Street
Chicago, IL60707 USA
www.cobraelec.com
O pe rating Instru ctions for your Co b ra UK 29 LTD ST CB Ra d i o
Bedienungsanleitung für lhr Modell Co b ra UK 29 LT DS T C B -
Fu n kg e r ä t
I n s t ru ct i vo de uso de la radio de banda ciudadana (CB)Co b ra
U K 29 LT D S T
I n s t ru ctions d’ u t i l i s ation du po s te de radio CB UK 29 LT DS T
de Co b ra
Is t ruzioni per l’uso del modello Co b ra UK 29 LT DST Radio CB
“Ingenious Prod u cts for Easier Co m m u n i cat i o n .”
29 UK-English.qx 6/22/99 12:15 PM Page 38
What’s Included with Your UK 29 LTD ST
1. CB transceiver
2. Microphone
3. Transceiver bracket
2
1
3
4. Microphone bracket
5. Operating Manual
6. DC power cord (not shown)
The CB Story
4
NOTICE
A licence is required for
use in the UK.CB licensing applications can be
obtained from The Radio
Licensing Centre,P.O.
5
Box 885,Bristol,BS99
5LG,UK or contact your
local CB dealer for
additional information.
A1
29 UK-English.qx 6/22/99 12:15 PM Page 39
Controls and Indicators
1. 4- Pin Mi c rophone
Co n n e cto r
2. Power On/Off,Volume
3. Squelch
4. RF Gain/ Dynamike
5. Tone
6. Dimmer/SWR CAL
7. Band Selector
8. Channel Selector
9. LED Channel Display
1 0 . Sound Tracker™ LED
11 . RX (Receive)/ TX (Transmit)
LED Indicator
12 . Sound Tracker™ On/Off
13 . S/RF SWR CAL Switch
14 . Channel 19/Channel 9/
Normal Switch
1 5 . Delta-Tune
16 . CB/PA Switch
17 . NB/ANL ANL Off Switch
1 8 . Signal Strength Meter
1 9 . Microphone
1 8
1
1 6
1 7
2 4 5
3
1 9
1 3
1 1
1 41 5
1 0
1 2
6 7 8
2 0 2 1
Our Thanks to You
Thank you for purchasing the Cobra UK 29 LTD ST
CB Radio.Properly used,this Cobra product will
give you many years of reliable service.
SoundTracker
TM
“Cuts noise coming in...strengthens signals
going out.”
This Patent-pending technology dramatically
improves transmission and reception of CB
signals.
The revolutionary SoundTrackerTMSystem reconfigures the transmission signal,allowing it to be
transferred more efficiently through cluttered
airwaves.
9
At the same time,it significantly reduces the
amount of static on all incoming CB signals.
The end result is cleaner,clearer sounding
reception of signals and a more powerful
transmission which dramatically improves CB
communications.
Cobra on the World Wide Web:
Frequently Asked Questions
(FAQ) can be found on-line at:
www.cobraelec.com
Rear Panel
2 0 . Public Address Speaker
Jack
2 1 . External Speaker Jack
2 2 . Antenna Connector
2 3 . Power Jack
A2
2 2 2 3
A3
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How to Use Your
Contents
Section A(English)
Features..................................................................................................1
Included Accessories
Controls & Indicators.......................................................................A2
Our Thanks toYou.............................................................................A3
SoundTracker
Installation
Location.............................................................................................2
Mounting and Connection.........................................................2
Antennas
CB Antenna.......................................................................................6
Marine Installation.........................................................................6
Ignition Noise Interference ..........................................................7
Operating Your UK 29 LTD ST
Turning On Your CB........................................................................8
Setting Channel Selector.............................................................9
Setting Band Selector...................................................................9
Calibrating For SWR (Standing Wave Ratio)..........................10
To Receive..........................................................................................12
Selecting a Channel.......................................................................13
S-Meter...............................................................................................13
SoundTracker™System................................................................14
Activating SoundTracker™..........................................................15
NB-ANL/ANL/Off (Noise Blanker/Automatic.........................16
Noise Limiter Switch)
Dimmer Switch................................................................................17
RF Gain Control................................................................................17
Setting Delta Control....................................................................18
Setting Squelch...............................................................................18
ToTransmit........................................................................................20
Setting Dynamike...........................................................................20
Transmit..............................................................................................21
RF Meter.............................................................................................22
External Speaker.............................................................................23
PA (Public Address)........................................................................24
Home And Office Set-Up .............................................................26
Temporary Mobile Set-Up...........................................................27
HowYour CB Can Serve You..........................................................28
A Few Rules You Should Know..................................................28
LocalLaws or Regulations...........................................................29
CB 10-Codes.....................................................................................30
Frequency Ranges.............................................................................32
UK 29 LTD ST Specifications.........................................................33
Accessories............................................................................................34
Deutsch................................................................................Abschnitt B
Español.....................................................................................Sección C
Français....................................................................................Section D
Italiano .....................................................................................Sezione E
™
Cobra UK 29 LTD ST
Features of This Product
• Complies With UK MPT 1382
• 2.75 metre microphone cord
• 40 UK CB Radio Channels,
40 CEPT (EU) Channels
• SoundTracker™System
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts FM RF Power Ou t p u t
• SWR Calibration Meter
• Instant Channel 19 and 9
• Front Panel 4-Pin Microphone
Connector
• Delta Control
• Switchable Automatic Noise
Limiter & Noise Blanker
• Tactile Controls
• Illuminated Front Panel
• Dimmer Control
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
P E R S O N N E L
!
!
1
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InstallationInstallation
Location
Mounting and
Connection
Note
The transceiver is held in the
universal mounting bracket by
two thumbscrews which allow
for adjustment at a convenient
angle.
The bracket includes two selftapping screws and star washers.The mounting must be
mechanically strong and
conveniently located.
Location
Plan location of transceiver and microphone
bracket before starting the installation.
Select a location that is convenient for operation,
yet does not inte rfe re with the dri ver or passenger.
The transceiver is usually mounted to the underside of the dash with the microphone bracket
beside it.
Mounting and Connection
1
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 transceiver
3
Connect the antenna cable plug to the receptacle marked “ANT” on the back of the unit.
2
Drill the holes and secure the bracket.
continued
32
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Note
Before installing the CB radio,
visually check the vehicle’s
battery connection to determine which terminal, positive
or negative,is earthed to the
engine block (or chassis). A
negatively earthed vehicle
has its negative lead earthed
to the chassis.
Note
Connecting to a fuse circuit controlled by the ignition switch
prevents the unit from being left
on accidentally,and also permits operating the unit without
running the engine.
Note
In positive earth vehicles the red
wire goes to the chassis and the
black wire is connected to the
ignition switch.
4
In a negative earthed 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.
6
Plug power cable into back of unit marked
“Power”. Be sure to observe polarity markings.
7
Mount the microphone
bracket on right side of
the unit (nearer the driver)
using two screws supplied.Bracket should be
placed under the dash
so that microphone is
readily accessible.
InstallationInstallation
8
Attach the 4-pin microphone cable to receptacle on front of unit and Install unit in bracket
securely.
54
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Ignition Noise InterferenceAntennas
CB Antenna
Note
For optimum performance in
passenger cars the ideal antenna location is on the centre of
the roof.Second choice is on the
centre of the boot.
Note
Antenna must be earthed to the
chassis of the vehicle.
CB Antenna
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.
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 an earth plate,(unless it
has a steel hull).Before attempting installation ,
consult your dealer for information regarding an
adequate earthing 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 cars is from
the alternator and the 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 UK 29 LTD 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.
6
7
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Operation
Turning On Setting Channel
Turning On
Make sure the power cord,antenna and micro-
phone are connected to their proper connectors
before starting.
1
The CB/PA button should be in the
CB position.
Setting Channel Selector
1
The CH19/CH9/NOR switch should be in
the NOR position
2
Select one of forty channels and adjust
volume.The selected channel is indicated by
the LED readout directly above the channel
selector knob.
Setting Band Selector
Select band Selector: either UK 40
1
channels FM or EU European 40 channels
FM,(CEPT).
Operation
Selector
Setting Band
Selector
2
Ro t ate the On/Off Volume knob c l oc kw i s e to
a normal listening level.
8
9
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OperationOperation
Calibrating For
SWR (Standing
Wave Ratio)
Calibrating for SWR (Standing Wave Ratio)
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.
1
Select channel 20.
2
Switch to the CAL position.
3
Push and hold microphone button.
4
While holding microphone button adjust
the SWR CAL knob so
that the meter needle
swings to the CAL ▼
mark on the meter (located on the right).
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.
continued
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Operation
Note
With the S/RF-SWR-CALswitch
in the 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
relcalibration steps.
To Receive
5
While still holding down the microphone
button,set the S/RF-SWR-CAL switch to the
SWR position,to read the SWR reading.
6
Repeat the same steps 2 to 5 on Channel 1
and 40.This will check SWR for all channels.
To Receive
Selecting A Channel
1
Switch to NOR to select desired channel.
S-Meter
Swings proportionately to strength of incoming
signal when receiving.
Operation
Selecting A
Channel
Note
Switch to 9 or 19 for instant
access to these channels.
S-Meter
1
Rotate the On/Off Volume knob clockwise.
The green RX/TX LED will be illuminated.
12
1
The S/RF switch must be in the S/RF position
to read the meter.
13
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OperationOperation
Note
SoundTracker™ gives you
clearer,cleaner reception to
improve CB communications
while on the air.
The SoundTrackerTMSystem
While previous systems only “blanket out”or limit
noise in higher sound frequencies,the revolutionary new SoundTrackerTMSystem 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 SoundTrackerTMWorks
On Reception - “Cuts noise coming in”
With a normal CB,distant signals fall below
the squelch level and are unintelligible.With a
SoundTrackerTMCB,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 reduce the squelch level significantly,which greatly expands your listening range.
OnTransmission - “Strengthens signals going out”
A SoundTrackerTMCB 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.
Activating SoundTracker™
1
Push and release the ST button.Red LED
is illuminated when SoundTracker™ is
turned on.
Activating
SoundTracker
™
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OperationOperation
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.
NB-ANL/ANL/OFF (Noise
Blanker/Automatic Noise Limiter) Switch
1
When switched to ANL the Automatic Noise
Limiter is activated.This helps reduce noise
created by the vehicle’s electronics.
When switched to NB/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.
Dimmer Control
1
Ro t a tethe Dimmer knob cloc kwise for maximum bri g ht n e s s ;a nt i c l oc kwise for minimum
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
Dimmer Control
Note
The Dimmer controls the
brightness of the front panel,
signal strength meter and
channel display.
RF Gain Control
Note
The RF Gain is used to optimize
reception in weak signal areas.
1
Rotate the RF Gain knob anticlockwise to
reduce gain in strong signal areas.In weak
signal areas turn clockwise to increase gain.
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Operation Operation
Setting Delta
Control
Setting Squelch
Gate closed
Setting Delta Control
Delta Tone Control is used to set the desirable
level of received audio.
1
Sw i tch to Delta+ or Delta - to co nt rol tuning.
2
Ro t ate the Tone Co nt rol to desired leve l .
Setting Squelch
Squelch is the “control gate”for incoming signals.
2
Full anticlockwise rotation opens the “gate”
allowing all signals in.
3
To achieve the Desired Squelch Setting (DSS),
turn the Squelch control anticlockwise until
you hear noise. Now turn the control clockwise
until the noise just stops. This is the DSS
setting.
Gate open
Gate set to Desired
Squelch Setting (DSS)
1
Full clockwise rotation closes the “gate”
allowing only very strong signals to enter.
18
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Operation Operation
To Transmit Transmit
Caution!
Be sure the antenna is properly
connected to the radio before
transmitting.Prolonged transmitting without an antenna,or
with a poorly-matched antenna,can cause damage to the
transmitter.
Setting
Dynamike
ToTransmit
1
Select desired channel.
Setting Dynamike
This controls the microphone sensitivity
(outgoing audio level).
Transmit
1
Push and hold microphone 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.
1
Initially,set fully clockwise so that maximum voice volume is available.Dynamike
may have to be reduced in some conditions.
20
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OperationOperation
RF Meter
RF Meter
This meter swings proportionately to the RF
output (outgoing signal) while transmitting.
1
The S/RF-SWR-CAL switch must be in the
S/RF position.
External Speaker
The external speaker jack is used for remote
receiver monitoring.
1
Connect an external speaker to the external
speaker jack on the rear panel.
External Speaker
Note
The external speaker should
have 8-ohm impedance and be
rated to handle at least 4 watts.
When the external speaker is
plugged in,the internal speaker
is automatically disconnected.
Note
Cobra external speakers are
rated at 10 watts.
22
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OperationOperation
PA (Public
Address)
Note
Speaker should have 8-ohm
impedance and be rated to
handle at least 4 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
for normal listening level.
PA (Public Address)
1
Connect an external PA speaker to the PA jack
on the rear panel.
2
Set CB/PA switch to PA position.
3
Push and hold microphone button and speak
in a normal voice.Your voice will now transmit
on the PA speaker.
4
Adjust PA speaker volume with the
Dynamike control.
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Home And Office Set-Up
Base Station
Operation
(From 220/240V
AC Domestic
Current)
Warning!
Do not attempt to operate this
transceiver by connecting it
directly to 220/240 V AC.
Base Station Operation
(From 220/240V AC Domestic 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.
Temporary Mobile Set-Up
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“install”your
transceiver quickly for temporary use.
Temporary
Mobile Set-Up
1
Connect the red (+) and black (-)
leads of the transceiver to the corresponding
terminals of the power pack.
26
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How Your CB Can Serve YouHow Your CB Can Serve You
A Few Rules
You Should
Know
• Warn of traffic problems
• Provide weather and road data
• Provide help in an emergency
• Provide direct contact with home or office
• Get local information to find destination
• Communicate with family and friends
• Suggest spots to eat and sleep
• Keep you alert while travelling
A Few Rules You Should Know
A. Co nve r s ations should not last more than 5 min-
u te s with another station. A one-minute break
should be taken to let others use the channel.
B. You should not blast others off the air by use
of illegally amplified transmitters or illegally
high antennas.
C. You should not use CB to promote illegal
activities.
D. Bad language should not be used.
E. You should not transmit music with a CB.
F. You should not use your CB to sell
merchandise and/or professional services.
Local Laws or Regulations
THE USE OF THIS CB PRODUCT INVO LV E S
THE PUBLIC AIRWAYS AND ITS USE MAY BE
SUBJECT TO LO CAL LAWS OR REGULAT I O N S .BEFORE USING THE PRODUCT YO U
SHOULD CHECK TO SEE T H AT THE CO NT E M P LATED USE DOES NOT V I O LATE ANY
A P P L I CABLE LO CAL LAW OR REGULAT I O N .
Local Laws or
Regulations
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How Your CB Can Serve YouHow 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
p rovide quick and easy co m m u n i cat i o n ,e s pe c i a l l y
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 air
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/road conditions
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
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 Breakdown truck needed at
10-38 Ambulance needed
10-39 Message delivered
10-41 Turn to channel
10-42 Traffic accident at
10-43 Traffic delay 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 microphone
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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29 UK-English.qx 6/22/99 12:15 PM Page 32
The CO B RA UK 29 LTD ST tra n s ce i ver re p re s e nts one of the most adva n ced FM two -
way radios used.This unit fe at u res adva n ced Phase Lock Loop (PLL) circ u i t ry prov i ding co m p l e te cove rage of all 40 CEPT and 40 UK FMCB channels.
CEPT Frequencies UK Frequencies
Channel Channel
CB Freq. CB Freq.
Channel In MHz Channel In MHz
1 26.965 21 27.215
2 26.975 22 27.225
3 26.985 23 27.255
4 27.005 24 27.235
5 27.015 25 27.245
6 27.025 26 27.265
7 27.035 27 27.275
8 27.055 28 27.285
9 27.065 29 27.295
10 27.075 30 27.305
11 27.085 31 27.315
12 27.105 32 27.325
13 27.115 33 27.335
14 27.125 34 27.345
15 27.135 35 27.355
16 27.155 36 27.365
17 27.165 37 27.375
18 27.175 38 27.385
19 27.185 39 27.395
20 27.205 40 27.405
CB Freq. CB Freq.
Channel In MHz Channel In MHz
1 27.60125 21 27.80125
2 27.61125 22 27.81125
3 27.62125 23 27.82125
4 27.63125 24 27.83125
5 27.64125 25 27.84125
6 27.65125 26 27.85125
7 27.66125 27 27.86125
8 27.67125 28 27.87125
9 27.68125 29 27.88125
10 27.69125 30 27.89125
11 27.70125 31 27.90125
12 27.71125 32 27.91125
13 27.72125 33 27.92125
14 27.73125 34 27.93125
15 27.74125 35 27.94125
16 27.75125 36 27.95125
17 27.76125 37 27.96125
18 27.77125 38 27.97125
19 27.78125 39 27.98125
20 27.79125 40 27.99125
Channel Channel
29 UK LTD ST SpecificationsFrequency Ranges
GENERAL
CHANNELS. . . . . . . . . . . . . . . . . . . . . . . 40 CH FM British,40 Channel FM CEPT (EU)
FREQUENCY RANGE. . . . . . . . . . . . . . . 26.965 TO 27.405 MHz FM CEPT
FREQUENCY TOLERANCE . . . . . . . . . . 0.005 %
FREQUENCY CONTROL . . . . . . . . . . . . PLL (PHASE LOCK LOOP) SYNTHESIZER
OPERATING TEMPERATURE
RANGE. . . . . . . . . . . . . . . . . . . . . . . . . . . -20° C TO + 55° C
MICROPHONE . . . . . . . . . . . . . . . . . . . . PLUG-IN DYNAMIC
INPUT VOLTAGE . . . . . . . . . . . . . . . . . . 13.2 V DC nom.(positive or negative earth)
CURRENT DRAIN TRANSMIT:AM FULL MOD.,1.5A (MAXIMUM)
SIZE 219 mm x185 mm x 56 mm
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . .1.8 kg (4 LBS.)
ANTENNA CONNECTOR . . . . . . . . . . . .UHF;SO-239
METER . . . . . . . . . . . . . . . . . . . . . . . . . . .ILLUMINATED;INDICATES RELATIVE
TRANSMITTER
POWER OUTPUT . . . . . . . . . . . . . . . . . .4WATTS FM
MODULATION . . . . . . . . . . . . . . . . . . . .FM (FREQUENCY MODULATION)
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 Hz
OUTPUT IMPEDANCE . . . . . . . . . . . . . .50 OHMS,UNBALANCED
RECEIVER
SENSITIVITY . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 6 dB µV FOR 20 dB SINAD
SELECTIVITY . . . . . . . . . . . . . . . . . . . . . .6 dB@ 7 kHz,60 dB@ 10 kHz
IMAGE REJECTION . . . . . . . . . . . . . . . . .80 dB,TYPICAL
ADJACENT-CHANNEL REJECTION . . .60 dB,TYPICAL
IF FREQUENCIES . . . . . . . . . . . . . . . . . .DOUBLE CONVERSION:1ST:10.695 MHz
AUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 dBCHANGE IN AUDIO
RF GAIN RANGE . . . . . . . . . . . . . . . . . . .40 dB
NOISE BLANKER . . . . . . . . . . . . . . . . . . .RF TYPE
SQUELCH . . . . . . . . . . . . . . . . . . . . . . . . .A D J U S TA B L E ;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
E XTERNAL SPEAKER (NOT SUPPLIED) 8 OHMS;DISABLES INTERNAL SPEAKER
PA SYSTEM
POWER OUTPUT . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKER
EXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS,4W MIN.
(NOT SUPPLIED)
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
BRITISH FM 40 CH
FREQ.RANGE 27.60125 TO 27.99125
RECEIVE:SQUELCHED, 0.3A;
FULL AUDIO OUTPUT,1.2A (NOMINAL)
(8-5/8”D x 7-9/32”W x 2-13/64”H)
POWER OUTPUT,RECEIVED
SIGNAL STRENGTH AND VSWR
2ND:455 kHz
OUTPUT FOR INPUTS FROM 10 TO 50,000
MICROVOLTS
WHEN CONNECTED
3332
29 UK-English.qx 6/22/99 12:15 PM Page 34
Optional AccessoriesOptional Accessories
Replacement DC Power Cord
For in-vehicle use
Replacement Microphone
Bracket
For in-vehicle use
39”Full Range Base Load,
Magnetic Mount Antenna
For in-vehicle use
AT 70
Replacement Mounting
Bracket
For in-vehicle use
28”Full Range Centre Load,
Magnetic Mount Antenna
For in-vehicle use
AT 35
44”Full Range, Centre Load,
Dual Band CB/WX Antenna
Allows greater transmission
range while in a moving vehicle.
ATW 400
Replacement Thumb Screws
For in-vehicle use
25”Glass Mount Antenna
For in-vehicle use
AT 55
Replacement Dynamic
Microphone
For in-vehicle use
CA 73
Power Microphone
For in-vehicle use
CA 75
Dynamic External Speaker
For in-vehicle use
CS 100
Noise Cancelling/Power
Microphone
For in-vehicle use
CA 77
Noise Cancelling External
Speaker
For in-vehicle use
CS 300
Echo/Noise Cancelling
Microphone
For in-vehicle use
CA 79
Dynamic Noise Cancelling
With Talk Back External
Speaker
For in-vehicle use
CS 500
You Can Find These High-quality Accessories AtYour
Local Cobra CB Dealer
3534
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