Cobra Electronics 18 WX ST operating instructions Rear Panel, Operating Procedure to Receive

18.WX.ST.MAN.ORIG. 9/19/97 2:54 PM Page 4

B. Rear Panel

1.Antenna Connector. This female connector permits connection of the transmission line cable male connec- tor to the transceiver.

2.External Speaker. The External Speaker Jack is used for remote receiver monitoring. The external speaker should have 8-ohm impedance and be rated to handle at least 4.0 watts. When the external speaker is plugged in, the internal speaker is automatically dis- connected.

3.Power: This cable is permanently attached to the radio. If you wish to remove the radio after installation, dis- connect at fuse holder and ground connector.

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Operating Procedure to Receive

1.Be sure that power cord, antenna and microphone are connected to the proper connectors before proceeding further. The weather switch should be in the "CB" posi- tion.

2.Turn the radio ON by rotating the VOLUME CON- TROL clockwise.

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

4.Select the desired channel.

5.Set VOLUME CONTROL to a comfortable listening level.

6.Engage the SoundTracker system by depressing the button labeled ST.

Listen to the background noise from the speaker. Turn the SQUELCH CONTROL slowly clockwise until the noise JUST disappears (no signal should be present). Leave the control at this setting. The squelch is now properly adjusted. 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 background noise (static) and increase the signal for better reception.

Operating Procedure to Transmit

1.Select the desired channel.

2.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 micro- phone 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.

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