Unfortunately there have been so many people cheating/tampering with
transponders that effective 2011 SCCA is requiring that they be mounted on
the driver's helmet..
RB
----- Original Message -----
From: "Scott Janzen" <s.janzen@comcast.net>
To: "Gary Schneider" <garygret@sbcglobal.net>
Cc: <n197tr4@cs.com>; <fot@autox.team.net>
Sent: Tuesday, August 10, 2010 4:55 PM
Subject: Re: [Fot] TRANSPONDER location - frame works ok
>I have mine mounted on the frame rail, center about 8" above grade,
> and had no troubles.
>
> On Aug 10, 2010, at 6:01 PM, Gary Schneider wrote:
>
> Joe,
> An important point is that the transponder needs to see the track not
> only
> straight down but also forward and back by at least a few inches. As
> you cross
> the line the transponder makes a number of hits: weaker as you
> approach/depart,
> strongest as you pass directly over. It triangulates on the signal
> strength
> coming and going to find the exact millisecond you are centered over
> the loop.
> Ideally there should be an uninterrupted cone of vision from the
> transponder
> bottom to the asphalt. AMB tells you the maximum height is 2 feet. But
> they do
> not tell you there is a also practical minimum height of around 9-12
> inches: too
> small a cone of signal means too few hits to accurately position you.
> That means
> don't do the obvious and mount it on the frame. This generates a weak-
> signal
> warning to the T&S system and you will likely get a love note at pit
> in to
> change it. (Been there, done that.) Mid-height inside the wheel well
> is AMB's
> suggestion, but outside the front valance works great too and provides
> easier
> access for removal.
>
> Hope this helps,
> Gary Schneider
>
>
>
>
>
>
> ________________________________
> From: "n197tr4@cs.com" <n197tr4@cs.com>
> To: fot@autox.team.net
> Sent: Tue, August 10, 2010 2:57:10 PM
> Subject: [Fot] AMB RECHARGEABLE TRANSPONDER Questions
>
> I am about to install.
>
> What is the favored location on a TR3-6 chassis for location of the
> transponder?
>
> Any caveats?
>
> Orientation?
>
> Thanks!
>
> Joe
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