[ROVERNET - UK] Radio static???

[Brooks]

"RF radiation generated
within the engine compartment"
.
 Dave...doesn't the engine ground perform this function ??

 Regards

 Dennis.
----- Original Message ----- 
From: "Dave Read" <defender110 at ozemail.com.au>
To: <rovernet at lyris.ccdata.com>
Sent: Sunday, July 24, 2005 3:57 PM
Subject: Re: [ROVERNET - UK] Radio static???


> Dennis
> Radio interference can be via two sources,
> RF (aerial) or direct (dc supply).
>
> The bonnet, being metallic, helps contain any RF radiation generated 
> within the engine compartment. It can only perform this function if it is 
> solidly connected to the rest of the body usually with flat braid straps.
> The flat braid (as against round cable) is needed at RF frequencies.
>
> Bybass capacitors or filters can help with the dc supply source.
>
> Usually interference is a combination of both.
>
> Cheers
> Dave
> South Oz
>
> Brooks wrote:
>> What would grounding the bonnet do to interfere with the radio ?? The 
>> antenna is not fixed to it...I am not arguing the point...just curious. I 
>> would expect like most older cars it needs to have a filter to supress 
>> the noise...if it has one it may need replacement.
>>
>> .Dennis
>> ----- Original Message ----- From: "JOHN HALL" <J.HALL11 at COMCAST.NET>
>> To: <rovernet at lyris.ccdata.com>
>> Sent: Sunday, July 24, 2005 2:09 PM
>> Subject: Re: [ROVERNET - UK] Radio static???
>>
>>
>>> Make sure the hood (bonnet) has a good ground. I used 1/2" copper braid 
>>> on my cars.
> <snip>
>
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