Which Antenna to use?

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thejumbo@gmail.com - 26 Mar 2007 02:12 GMT

I am installing an aftermarket Alpine CD Player in a 95 740iL. I am
confused about the dual antennas that I have found attached to the
factory cassette player.

Which do I use to attach to the CD player? I have been all over the
internet looking for a simple answer, and I thought that this might be
the place to get it.

Thanks

Jon Lancaster
thejumbo@gmail.com

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Dave Plowman (News) - 26 Mar 2007 08:45 GMT

> I am installing an aftermarket Alpine CD Player in a 95 740iL. I am
> confused about the dual antennas that I have found attached to the
> factory cassette player.

> Which do I use to attach to the CD player? I have been all over the
> internet looking for a simple answer, and I thought that this might be
> the place to get it.

The original uses a system called diversity reception. With a portable FM
radio you've probably noticed that moving the set or aerial a small
distance can alter the reception quality. Your original radio makes use of
this effect by picking the best signal from a pair of aerials. If the
replacement doesn't have this feature just use either one, I'd guess.

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*Everyone has a photographic memory. Some don't have film *

Dave Plowman dave@davenoise.co.uk London SW
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hsg@h-gee.co.uk - 26 Mar 2007 08:58 GMT

>I am installing an aftermarket Alpine CD Player in a 95 740iL. I am
>confused about the dual antennas that I have found attached to the
[quoted text clipped - 8 lines]
>Jon Lancaster
>thejumbo@gmail.com

the one that works - No instruction book?

Sir Hugh of Bognor

The difference between men and boys is the price of their toys.

Intelligence is not knowing the answer but knowing where and how to find it!

Hugh Gundersen
hsg@h-gee.co.uk
Bognor Regis, W.Sussex, England, UK

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thejumbo@gmail.com - 26 Mar 2007 16:19 GMT

On Mar 26, 3:58 am, h...@h-gee.co.uk wrote:

> >I am installing an aftermarket Alpine CD Player in a 95 740iL. I am
> >confused about the dual antennas that I have found attached to the
[quoted text clipped - 20 lines]
> h...@h-gee.co.uk
> Bognor Regis, W.Sussex, England, UK

I assumed it was a diversity antenna, but I was surprised that none of
the adapters took it into account. I guess I'll go with the smaller
one, and see how it works.

Thanks.

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admin - 27 Mar 2007 14:53 GMT

> On Mar 26, 3:58 am, h...@h-gee.co.uk wrote:
>>
[quoted text clipped - 10 lines]
>>
>> Sir Hugh of Bognor

>> Intelligence is not knowing the answer but knowing where and how to find it!
>>
[quoted text clipped - 7 lines]
>
> Thanks.

It is a diversity antenna system. (Hugh - you're learning something, pay
attention!)

The large "normal" looking connector (it's actually a euro antenna
connector - you'll need an adaptor) carries both AM and FM signals. The
small one is FM only.. so you want the larger of the two.

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