Frequency Ranges; Specifications - Cobra 20XTR Street Communicator Operating Instructions Manual

20 XTR MANUAL.qxd 4/17/03 4:56 PM Page 20

Frequency Ranges

Frequency Frequency Ranges
Ranges
The Cobra 20 XTR 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 providing
complete coverage of all 40 CB channels.
Channel
CB Frequency CB
Channel In MHz
1 26.965
2 26.975
3 26.985
4 27.005
5 27.015
6 27.025
7 27.035
8 27.055
9 27.065
10 27.075
11 27.085
12 27.105
13 27.115
14 27.125
15 27.135
16 27.155
17 27.165
18 27.175
19 27.185
20 27.205
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Specifications

GENERAL
CHANNELS . . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH
FREQUENCY RANGE. . . . . . . . . . . . . . . CB - 26.965 TO 27.405 MHZ
FREQUENCY TOLERANCE . . . . . . . . . . 0.005 %
FREQUENCY CONTROL . . . . . . . . . . . PLL (PHASE LOCK LOOP) SYNTHESIZER
OPERATING TEMP. 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)
Channel
Frequency
SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7/8" D X 6-3/4"W X 1-7/8" H
Channel In MHz WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . 3.25 LBS.
ANTENNA CONNECTOR . . . . . . . . . . . UHF; SO-239
21 27.215
METER. . . . . . . . . . . . . . . . . . . . . . . . . . . . LED; INDICATES RELATIVE POWER
22 27.225
23 27.255
TRANSMITTER
POWER OUTPUT . . . . . . . . . . . . . . . . . . 4 WATTS
24 27.235
MODULATION . . . . . . . . . . . . . . . . . . . . AM (AMPLITUDE MODULATION)
25 27.245
FREQUENCY RESPONSE . . . . . . . . . . . 300 TO 3000 HZ
OUTPUT IMPEDANCE . . . . . . . . . . . . . 50 OHMS, UNBALANCED
26 27.265
27 27.275
RECEIVER
SENSITIVITY. . . . . . . . . . . . . . . . . . . . . . . LESS THAN 1 µV FOR 10dB (S+N)
28 27.285
SELECTIVITY . . . . . . . . . . . . . . . . . . . . . . 6 dB @ 7 KHZ, 60 DB @ 10KHZ
29 27.295
IMAGE REJECTION . . . . . . . . . . . . . . . . 60 dB, TYPICAL
ADJACENT-CHANNEL REJECTION. . 50 dB, TYPICAL
30 27.305
AUTOMATIC NOISE LIMITER . . . . . . . BUILT-IN
31 27.315
32 27.325
33 27.335
34 27.345
35 27.355
36 27.365
37 27.375
38 27.385
39 27.395
40 27.405
Specifications
Specifications
RECEIVE: SQUELCHED, 0.9 A;
FULL AUDIO OUTPUT, 1.2A (NOMINAL)
OUTPUT AND RECEIVED SIGNAL STRENGTH
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