From David.S.Baker@tek.com Wed Apr  8 21:26 PDT 1998
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Date: Wed, 08 Apr 1998 21:24:35 -0700
From: David Baker <David.S.Baker@tek.com>
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Subject: [Fwd: Re: Help!! Poor FM Reception - Clarion ARX3170]
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From: Todd Matsubara <toddm@earthlink.net>
Newsgroups: rec.audio.car
Subject: Re: Help!! Poor FM Reception - Clarion ARX3170
Date: Mon, 06 Apr 1998 21:40:31 -0700
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Unfortunately, aftermarket units do not receive the attention that OEM
units do as far as tuner performance. I guess because most aftermarket
users are concerned with overall sound quality and tape/cd performance,
the tuner section is taken for granted.

This type of tuner performance testing is a major part of my job, and to
this day I still cannot figure out why the same tuners are not used in
OEM and retail applications. OEM tuners outperform most aftermarket
units by a significant margin, even with their considerably overall
lower cost to produce.

Of course you can check the usual - antenna, antenna ground, etc. but
there is probably nothing wrong with your vehicle or equipment...you
have simply found the achilles hell of aftermarket head units.

For auto manufacturers, customer complaints are listened to closer than
one thinks - although the channels that they receive the information
through is still questionable to me. But there is definitely input, and
the various problems are addressed depending upon the weight of the
complaint vs. overall customer satisfaction or sales. In this case, the
customer could be the final end user OR the auto manufacturer
themselves. Our company works with the most diverse list of auto
manufacturers as far as stereo companies goes, and I have seen how much
the customers  value tuner performance. Our testing involves duplicating
specific problems such as strong adjacent signal interference, multipath
interference, weak signal, strong signal, and a few others. These are
tested in real-life situations, and the information gathered is vitally
important for future development. I know that all other manufacturers do
similar testing.

To try keep this post unbiased (although I always have and always will
refuse to go by anything but raw data and evidence) I won't mention any
other brand names as far as tuner performance of current units goes. But
even with more than one manufacturer's line of head units there are big
differences among their own products. Sometimes even the cheaper units
have much better performance than the high-end ones. This is all a
result of tuner pack circuitry, layout, positioning within the unit
itself, other components inside the unit, etc.

I can say that so far, the Clarion units I have tested have been on the
better side (at the very least). Although, as I mentioned above, there
are differences between levels of units which makes direct comparisons
of competitor units sort of confusing and irrelevant.

Some of the best performances I have seen (ever) are the previous and
current body Honda Accord with the in-glass antenna, the current 3
series BMW and the current E class Mercedes. Note that these are all OEM
units.  If you ever get a chance to drive one of these cars through an
area that you have reception problems with, you may be quite surprised
at their performance.

Well I hope this general information helps clear up some confusion.
That's my $.00000002 for now ;)

Todd Matsubara
Product/System Engineer
Engineering Division
Clarion Corporation of America



Brendan wrote:

> I've been scouting the newsgroups and I have a question that
> hasn't been answered by anyone out there fully.
>
> Hopefully someone who's much more experienced about decks can
> answer this.
>
> Why is my new Clarion ARX3170 Tape Deck have such poor FM reception
> compared to my previous stock Tape Deck?
>
> Is it something to do with the aerial? Or is it the Clarion unit
> itself? Or something in between?
>
> Any replies to my e-mail below would be most welcome.
>
> --
>
> >>> Remove the "nospam" to reply <<<
> >>>E-mail: bwong@uq.net.au<<<




