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OPERATING INSTRUCTIONS FOR YOUR40 CHANNELCITIZENS BAND 2-WAY MOBILE RADIOModel21 LTD STCobra Electronics Corporation6500 W. Cortland StreetChicago, IL

Appendix (Cont.)A Few Rules That Should Be Obeyed1. You are not allowed to carry on a conversation with another station for morethan five minutes at a

Please print clearly:Name __________________________________________________________________Address (Not P. O. Box) __________________________________

The Citizens Band lies between the shortwave broadcast and 10-meter Amateurradio bands, and was established by law in 1949. The Class D two-way commu-

Specifications (cont.)GENERALChannels 40 Frequency Range 26.965 to 27.405 MHz.Frequency Control Phase Lock Loop (PLL) synthesizer.Frequency Tolerance

5Installation (Cont.)3. Connect the antenna cable plug to the standard receptacle on the unit. MostCB antennas are terminated with a type PL-259 plug

7Installation (Cont.)Ignition Noise InterferenceUse of a mobile receiver at low signal levels is normally limited by the presenceof electrical noise.

Operation (Cont.)96. RX/TX LED INDICATOR. When your radio is in the CB receive mode,the LED will be green. When in transmit mode, the LED will be red.

11Operating Procedure to Receive1. Be sure that the power cord, antenna and microphone are connected to theproper connectors before proceeding furthe

1312Operation (Cont.)Operating Procedure to Transmit1. Be sure the operator has read and understands part 95, F.C.C. Rules andRegulations prior to ope

14 15The COBRA CB transceiver is specifically designed for the environment encoun-tered in mobile installations. The use of all solid state circuitry