38 wx st specifications frequency ranges – Cobra Electronics HH 38 WX ST User Manual
Page 20
Channel Channel
Weather
CB
Freq.
CB Freq.
Weather Freq.
Channel In MHz
Channel In MHz
Channel
In MHz
HH
38 WX ST Specifications
Frequency Ranges
33
32
GENERAL
CHANNELS . . . . . . . . . . . . . . . . . . CB - 40 CH
WEATHER - 10 CH
FREQUENCY RANGE . . . . . . . . . . CB - 26.965 TO 27.405 MHZ
WEATHER - 161.650 TO 163.275 MHZ
FREQUENCY TOLERANCE . . . . . 0.005 %
FREQUENCY CONTROL . . . . . . . PLL (PHASE LOCK LOOP) SYNTHESIZER
OPERATING TEMPERATURE
RANGE . . . . . . . . . . . . . . . . . . . . . . -30° C TO + 65° C
MICROPHONE. . . . . . . . . . . . . . . . ELECTRET, PUSH-TO-TALK
INPUT VOLTAGE . . . . . . . . . . . . . 9V VDC
12 VDC, EXTERNAL
ANTENNA CONNECTOR . . . . . . . TYPE BNC
METER . . . . . . . . . . . . . . . . . . . . . . LCD DISPLAY, ICONS
WEIGHT . . . . . . . . . . . . . . . . . . . . . 9 oz.
TRANSMITTER
POWER OUTPUT . . . . . . . . . . . . . 4.0 W AT 13.8 VDC - HIGH, 1.0 IN LOW
MODULATION . . . . . . . . . . . . . . . AM
FREQUENCY RESPONSE . . . . . . . 300 - 3000 HZ AT -6 DB
OUTPUT IMPEDANCE . . . . . . . . . 50 OHMS, UNBALANCED
RECEIVER
CB
SENSITIVITY. . . . . . . . . . . . . . . . . . LESS THAN 1 uV FOR 10 DB S/N
IF FREQUENCY . . . . . . . . . . . . . . . DUAL CONVERSION
1 ST - 10.690 MHZ, 2ND - 455 KHZ
AUDIO OUTPUT . . . . . . . . . . . . . . 500 mW MAXIMUM AT 10 % DISTORTION
FREQUENCY RESPONSE . . . . . . . 300 - 3000 HZ AT -6 DB
2ND IF IMAGE REJECTION . . . . . GREATER THAN 60 DB
ADJACENT CH. REJECTION . . . . 50 DB MIN.
AUTOMATIC NOISE LIMITER . . . BUILT- IN
FREQUENCY CONTROL . . . . . . . PLL (PHASE LOCK LOOP)
WEATHER
SENSITIVITY. . . . . . . . . . . . . . . . . . LESS THAN 1 uV FOR 12 DB SINAD
IF FREQUENCY . . . . . . . . . . . . . . . DUAL CONVERSION
1st: -10.690 MHz
2nd: -455 KHz
AUDIO OUTPUT . . . . . . . . . . . . . . MAXIMUM 500 mW AT 10 % DISTORTION
FREQUENCY RESPONSE . . . . . . . 300 - 3000 HZ AT -6 DB
The COBRA HH 38 WX ST 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 and 10 weather channels as shown below.
1
26.965
21
27.215 1
162.550
2
26.975
22
27.225 2
162.400
3
26.985
23
27.255 3
162.475
4
27.005
24
27.235 4
162.425
5
162.450
5
27.015
25
27.245 6
162.500
6
27.025
26
27.265 7
162.525
7
27.035
27
27.275 8
161.650
8
27.055
28
27.285 9
161.775
9
27.065
29
27.295 0
163.275
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
*Canadian
weather channels
are 8, 9 and 10.