Cobra Electronics 29 LTD ST How SoundTracker Works, Operating Procedure to Receive

Operation (Cont.)

Operating Procedure to Receive

1. Be sure that the power cord, antenna and microphone are connected to the proper connectors before proceeding further. The PA/CB should be in the CB position.

2. Turn the radio ON by rotating the VOLUME CONTROL clockwise.

3. Set the RF GAIN CONTROL fully clockwise.

4. Set DELTA-TUNE CONTROL to center(click-stop) position.

5. Rotate SQUELCH CONTROL counterclockwise until incoming signal is heard.

6. Set the CHANNEL SELECTOR Switch to the desired channel.

7. Set VOLUME CONTROL to a comfortable listening level.

8. Engage the SoundTracker system by depressing the buttons labeled ST.

Listen to the background noise from the speaker. Turn the SQUELCH CON- TROL slowly clockwise until the noise JUST disappears (no signal should be present). Leave the control at this setting. The squelch is now properly adjust- ed. The receiver will remain quiet until a signal is actually received. Do not advance the control too far, or some of the weaker signals will not be heard. The revolutionary SoundTracker system allows you to reduce unwanted back- ground noise (static) and increase the signal for better reception.

Operating Procedure to Transmit

1. Be sure the operator has read and understands part 95, F.C.C. Rules and Regulations prior to operating the transmitter.

2. Select the desired channel.

3. Set the DYNAMIKE control fully clockwise.

4. The receiver and transmitter are controlled by the press-to-talk switch on the microphone. Press the switch and the transmitter is activated; release switch to receive. When transmitting (on a clear channel), hold the microphone two inches from the mouth and speak clearly in a normal voice.

Be sure the antenna is properly connected to the radio before transmitting. Prolonged transmitting without an antenna, or a poorly matched antenna, could cause damage to the transmitter.

Operating Procedure for Public Address

1. Connect a PA speaker to the PA jack provided on the rear panel.

2. Place PA/CB/ANL switch into the PA position.

3. Depress push-to-talk switch on micÑspeak in normal voice.

4. Adjust PA speaker volume with front panel DYNAMIKE control.

When the Volume control is rotated clockwise, activity on the CB channel will be heard through the PA speaker.

How SoundTracker Works

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 transmission.

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 unintelligi- ble. 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.

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