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Welcome!
Tothe wortdof sophisticated, miCroprocessorcontrolled CB radio communications. Your Uniden PRO 640XL represents the most advanced mobile radio ever designed for use in the Citizens Band Radio Service. It will operate on any of the 40 AM, 40 USB or 40 LSB frequencies authorized by the Department of Transport and Communications (DOTAC). Your PRO 640 XL features a superheterodyne circuit with PHASE LOCKED LOOP techniques to assure precise frequency control. This radio has been type accepted and certified by the DOTAC.
WARNING
Before transmitting with your transmitter, you must obtain a Department of Transport and Communications Citizens Band Radio (CBRS) license. Obtain a brochure and a caRS Ucense Application Form at your nearest DOTAC office. Mail the completed application form and the appropriate fee to the Supenntendent Regulatory of licensing in the State of Territory in which the station will be operated.
CONNECTING THE POWER CORDS
With regard to the connection of the power cords, it may be possible or desirable to connect the red lead (for negative ground systems) orthe black lead (forpositive ground systems) to the ignition switch accessory terminal so that the radio isauto- matically turned off when the ignition switch (key) is turned off.
Alternately, the power lead may be connected to an available terminal on the fuse block or even to a point in the wiring harness. Care must be taken, however, to
guard against a short circuit condition. When in doubt, please contact your vehi- cle dealer for specific information about your vehicle.
