Cobra Electronics 18 WXST II specifications Specifications

Page 19

Specifications

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

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Contents Contents How to Use Your Cobra 18WXSTMounting and Connections InstallationOperationMounting and Connections InstallOperation Turning on OperationTurning on Your Radio CB AntennaMicrophone Connector Microphone ConnectorSquelch Setting Squelch Setting SquelchAT E CB/Weather Set CB or WX ModeChannel Selection Channel 9/ Channel CB Weather Channel 9/ChannelScan Dual WatchScan Dual WatchSoundtracker System Activating Soundtracker Activating SoundtrackerRF Power Meter RF PowerMeter RX/TX Indicator LEDRX/TX Indicator LED Power Antenna Connector External SpeakerRear Panel Temporary Mobile Operation Ignition Noise InterferenceTemporary Mobile Operation Ignition Noise InterferenceOperating Procedure to Transmit Operating Procedure to Receive Make certain the microphone is properly plugged Maintenance Maintenance/ Adjustment Maintenance and AdjustmentUse Channel 9 For Emergency Messages Only Replacement WarningFew Rules You Should Know Channel Emergency Messages Few Rules That Should Be ObeyedMHz AccessoriesFrequency Ranges FreqSpecifications SpecificationsBracket 2 Foot HG A450 AccessoriesOrdering From U.S.A Accessories Order InfoLimited Warranty Limited Two Year WarrantyNothing Comes Close to a Cobra If You Think You Need Service WX ST What’s included with your CB Radio Citizens Band StoryFCC Regulations FCC WarningsControls and Indicators Customer Support Our Thanks to You