Poor Radio Reception, Distorted Sound & No Sound Problems

POOR RADIO RECEPTION (WITH ANTENNA FULLY EXTENDED):

Industry specifications for radios are such that a variance in tuner performance can exist; however, most poor radio reception complaints are antenna-related and can be diagnosed as follows:

1. Tune to a very weak AM station, one with either slight background static or one with a weaker second radio station noticeable in the background.



2. Disconnect the coaxial cable from the power antenna and install a manual antenna:



3. Bypass the antenna-to-radio coaxial cable with a new known quality cable routed outside of the vehicle. The continuity of the coaxial center conductor cannot be checked as the presence of a 120-130 of condenser in series with the center conductor will register as an open circuit (infinite ohms) if checked with an ohmmeter.



4. Set a known quality radio on another vehicle to the same station and observe signal-strength



DISTORTED SOUND PROBLEMS:




NO SOUND (RADIO OR TAPE):



NO SOUND (RADIO ONLY):