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Re: [Fot] TRANSPONDER location - frame works ok

To: Gary Schneider <garygret@sbcglobal.net>
Subject: Re: [Fot] TRANSPONDER location - frame works ok
From: Scott Janzen <s.janzen@comcast.net>
Date: Tue, 10 Aug 2010 19:55:23 -0400
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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