User manual UNIDEN PC78XL

[. . . ] Set the switch to CH9 or turn Channel Selector knob to Channel 9. Press PTT switch on microphone and speak clearly. If there is no response, select an active channel and ask that party to relay your emergency broadcast on Channel 9. All channels, except Channel 9 may be used for normal communication. Channel 9 is reserved by the FCC for emergency communications involving the immediate safety of individuals or protection of property. [. . . ] A short `loaded' whip antenna is easier to install on an automobile. However, the efficiency of the short whip antenna is less than that of a full quarter-wave whip antenna. MARINE INSTALLATION Consult your dealer for information regarding marine installation. It is important to adequately ground the system and to prevent electrolysis between the fittings in the hull and the water. 4 pc78xl. qxd 2/25/99 10:09 AM Page 5 CONNECTING THE POWER CORDS We recommend connecting the power lead to the Ignition Switch Accessory Terminal. This way, the transceiver is automatically turned off when the ignition switch is turned off. Or, the power cord may be connected to an available terminal on the fuse block, or, to a point in the wiring harness. However, caution must be taken to prevent a short circuit. If in doubt, contact your vehicle dealer for information. GROUND INFORMATION This transceiver may be installed and used in any 12volt DC negative or positive ground system vehicle. and foreign made cars, and small trucks, use a negative ground system. Some older cars, and some new large trucks, use a positive ground system. With a negative ground system, the negative (-) battery terminal is usually connected to the vehicle motor block. If you cannot determine the polarity system of your vehicle, contact your vehicle dealer for information. Negative Ground System If you have a negative ground system, connect the red DC power cord from the transceiver to the positive (+) battery terminal or other convenient point. Then connect the black power cord to the vehicle chassis or negative (-) battery terminal. Positive Ground System If you have a positive ground system, connect the black DC power cord from the transceiver to the negative (-) battery terminal or other convenient point. Then, connect the red power cord to the vehicle chassis or the positive (+) battery terminal. 5 pc78xl. qxd 2/25/99 10:09 AM Page 6 To Receive Be sure that the power source, antenna, and microphone are properly connected before proceeding. VOLUME Control to a comfortable level. 2. Set switch to NB/ANL. Dynamic Squelch Control automatically sets Squelch to the optimal level for stronger transmission and signal clarity. To scan for weaker signals, turn off Dynamic Squelch Control and perform the following steps: 4. Turn SQUELCH fully clockwise so only strong signals can get through. Turn SQUELCH fullY counterclockwise until you hear a hiss. Everything gets through - noise, weak signals, and strong signals. Turn SQUELCH back clockwise until the hiss stops. Set SQUELCH only when the radio is not receiving a strong signal. 6 pc78xl. qxd 2/25/99 10:09 AM Page 7 5. Adjust RF GAIN knob (small) to optimize reception in strong signal areas. 6. [. . . ] THIS WARRANTY DOES NOT COVER OR PROVIDE FOR THE REIMBURSEMENT OR PAYMENT OF INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states do not allow this exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. LEGAL REMEDIES: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. This warranty is void outside the United States of America. [. . . ]