Poor
Reception from Transmitter When More Than A Few Feet From The Vehicle
Check
the antenna ground by performing a continuity test between the metal
base of the anntenna whip and the shell of the RF connector attached
to the vault. There should be no resistance.
Check
the chasis ground by performing a continuity test between the metal
base of the anntenna whip and the car chasis. Any resistance here
will result in noisey audio.
Check
for continuity between the antenna whip and the tip of the RF connector
attached to the vault. There should be no resistance.
The
green wire of the interface cable is soldered to a shield in the cable
that provides ground. Verify that the green interface wire is connected
to chasis ground. Older cables don't have a green wire soldered to
the shield. For these cables it is necessary to locate the shield,
solder a wire to it and then attach the wire to chasis ground.
If
the antenna is installed somewhere other than the trunk lip, be aware
of these items:
The
surface indicated by the arrow in this picture must be flush against
bare metal in order to get a proper ground.
The
insulator indicated by the arrow must be flush with or slightly
above the surface of the threaded brass nut to ensure good contact
with the antenna.
The
rubber O-ring gasket must be installed in order to obtain a water
tight seal.
