Maintenance/Adjustment

Operating Your Mobile Radio

Maintenance/Adjustment

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Your Cobra CB transceiver is specifically designed for the environment encountered in mobile installations. The use of all solid state circuitry and its light weight result in high reliability. Should a failure occur, however, review the following, then if necessary, replace parts only with identical parts. Do not substitute.

Frequency Ranges

Operating Your Mobile Radio

Frequency Ranges

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The Cobra 19 ULTRA III transceiver represents one of the most advanced AM two-way radios for use 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.

Check Power Source

Check Fusesin DC PowerCord

Check MicrophoneConnection

1.Check connections to the source of power and make sure it is the 13.8 VDC required to operate your radio.

2.Check the fuses in the DC power cord. The main power lead (red) has a two amp 3AG type fuse in its holder. Use only the above specified type and size fuse for maximum protection. Failure to do so will void the warranty.

3.Make certain the microphone is properly plugged in.

4.Make certain the antenna is properly assembled and connected.

If you are unable to correct the problem, refer to product service on page 14 for the correct procedure for warranty and post-warranty service from Cobra.

CB	Channel Frequency
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

CB	Channel Frequency
Channel	in MHz
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

Check AntennaConnection

16	27.155
17	27.165

18	27.175
19	27.185

20	27.205

36	27.365
37	27.375

38	27.385
39	27.395

40	27.405

10 English

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