[ROVERNET - UK] Radio noise
Shirley & Barry Lafbery
lafbery at telus.net
Mon Jul 25 00:04:42 BST 2005
Eric just answered that for me. I had a feeling some one would ask.
> Barry wrote
> > What a great wealth of knowledge we have on Rovernet. Now I know why
> > the radio is noisy with the hood up and fine with it down.
> > Lets hope we don't get into Cavity Magnetrons
> What's a Cavity Magnetron? :-)
> Oops I stuffed up!
> The mention of low permeability steel is so much frog manure!!!
> It should read high permeability!!
> Dennis Brooks wrote:
>> Thanks for the explaniation Dave...now here's one...how can one tell the
>> difference....RF (aerial) or direct (dc supply).
> Difficult, as there are many possible entry points for RF ..... connect
> the radio (leave it in the vehicle) to a remote battery or power supply
> source via WELL SHIELDED supply leads and see if the interference is
> Shielded DC leads must be used, as any airborne RF interference will be
> induced into unshielded ones.
> Another possible RF entry point is into speaker wiring ...
> South Oz
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