Cobra 18 WX ST II 18WXSTII_MANL1 - Page 19

Specifications - mods

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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 Specifications 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 19

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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