Cobra Electronics operating instructions Frequency Ranges HH 38 WX ST Specifications

Frequency Ranges HH 38 WX ST Specifications

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.

	Channel		Channel		Weather
CB	Freq.	CB	Freq.	Weather	Freq.
Channel	In MHz	Channel	In MHz	Channel	In MHz
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	*Canadian
11	27.085	31	27.315	weather channels
				are 8, 9 and 10.
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

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

32 33