John O'Brien wrote:
> I'm looking for static, and I know the list is just the place to help me
> find it. In my BJ8 I get a lot of static in the radio, both am and fm. I
> have converted the car to neg. ground. The wires and plugs are supposed to
> be radio friendly (not produce static) I have a Radio Shack noise filter in
> the power wire to the radio and even put in a relay so the power to the
> radio comes directly from the battery rather than from anywhere having to do
> with the ignition. I also have a Pertronix unit that eliminated the points.
> Still got static on all but the strongest stations. Should I be
> checking/replacing the rotor and or Dist. cap? Where else should I be
> looking for the problem.
The cure will vary depending upon whether the noise source is spark
(ignition) or generator/regulator hash, but your radio power mods
suggest that it's spark noise coming in through radio's front end.
So first off, be sure that the antenna cable outer conductor (shield) is
at chassis ground, and that the center conductor is making a good
connection at both ends. If you or a ham radio friend can rig up a
terminating plug for the antenna input, and that makes the noise go
away, you've got a big clue as to the next step.
--
John Miller, N4VU
Surplus (For sale or trade):
Besson International trumpet by Kanstul
|