AM radio interference with '94 Range Rover.

[Tim]

I did i tune up on the beast replacing cap. rotor, plugs and wires and
now I get major iterference during AM reception, and actually no AM
reception now. Funny thing is, this is with the car NOT running. the
wires are suppsed to suppress noise, but this happens with the car not
running. when I open any door it's very loud. Did I bump a ground or
something?

[PDannyD]

"Tim" <mitebbots@yahoo.com.nospam> wrote in message
news:es32h058cfvn5h121pf807tjq1ki3cri8j@4ax.com
> I did i tune up on the beast replacing cap. rotor, plugs and wires and
> now I get major iterference during AM reception, and actually no AM
> reception now. Funny thing is, this is with the car NOT running. the
> wires are suppsed to suppress noise, but this happens with the car not
> running. when I open any door it's very loud. Did I bump a ground or
> something?

Sounds like the aerial is disconnected or the wire is broken. It's picking
up what stray signal it can and opening the door lets in more of the signal.

The AM receiver will keep turning up the reception gain until it gets a
strong signal. If there's no signal it'll keep on increasing the gain until
either the background noise provides a strong enough signal or it hits
maximum gain.

There should be zero Ohms between the aerial itself and the centre pin of
where the aerial wire goes into the radio.
The radio needs to be earthed and so does the aerial mount.

--
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[Nigel Hewitt]

Tim wrote:

> I get major iterference during AM reception, and actually no AM
> reception now. Funny thing is, this is with the car NOT running.

Woo. If the engine is off then it is not engine interferance but I'd
go for a busted aerial connection. AM radio should be a big woosh
noise if no station is being recieved. (FM goes silent) On my '97
HSE the AM and VHF aerials are seperate connections so it's
probably either fallen out or something has chopped the cable.

nigelH