Cobra Electronics 18 WX ST operating instructions Maintenance and Adjustment, Replacement Warning

18.WX.ST.MAN.ORIG. 9/19/97 2:54 PM Page 5

SOUNDTRACKER SYSTEM

While previous systems only Òblanked outÓ or limited noise in higher sound frequencies, the revolutionary new SoundTracker System actually reduces noise while leaving the signal intact in the reception mode. In the transmission mode, it actually strengthens the signal, providing you with a significant reduction in noise on reception and trans- mission.

Sound clarity is measured by the ratio of the signal level to the noise level. The higher the signal-to- noise ratio, the better the sound.

HOW SOUNDTRACKER WORKS

On Reception–“Cuts Noise Coming In”

With a normal CB, distant signals fall below the squelch level and are unintelligible. With a SoundTracker CB, the noise level is cut by up to 90%, which increases the signal- to-noise ratio and dramatically improves signal clarity. This also allows you to significantly reduce the squelch level, which greatly expands your listening range.

On Transmission–“Strengthens Signals Going Out”

A SoundTracker CB strengthens the transmit signal by more effectively using the available RF power output of the CB. The result is improved transmission signal clarity and an expanded transmission range.

Maintenance and Adjustment

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 reli- ability. Should a failure occur, however, review the follow- ing, then if necessary, replace parts only with identical parts. Do not substitute.

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 fuse in the DC power cord. The main power lead (red wire) has a 2 amp 3AG type fuse in its holder. Use only the above specified type and size fuse for max- imum protection. Failure to do so, will void the warran- ty.

3.Make certain the microphone properly plugged in.

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

If you are unable to correct the problem, refer to the SERVICE INSTRUCTIONS at the end of this manual for the correct procedure for warranty and post-warranty service from COBRA.

Replacement Warning

Replacement or substitution of certain parts with replacements other than those recommended by Cobra may be a violation of the technical regulations of Part 95 of the FCC rules, or of Type Acceptance requirements of Part 2 of said rules.

When making adjustments, be sure to re-read applicable portions of this instruction manual to make certain you are following correct procedure and that the radio was properly installed, etc.

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