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CB Channel Freq. CB Channel Freq.
Channel in MHz 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
21 27.215
22 27.225
23 27.255
24 27.235
25 27.245
26 27.265
27 27.275
28 27.285
29 27.295
30 27.305
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
HH-33 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 TEMPERATURE RANGE -30° C TO + 65° C
MICROPHONE ELECTRET, PUSH-TO-TALK
INPUT VOLTAGE 12V VDC, INTERNAL BATTERIES
13.8 VDC, EXTERNAL
ANTENNA CONNECTOR TYPE BNC
TRANSMITTER
POWER OUTPUT 3.5 W AT 12 VDC - HIGH, 1.0 W IN LOW
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)
FREQUENCY RANGE
The COBRA HH33 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 as shown below.