With about 250 cars per event, after just two events we have had two ties in
the overall
PAX championship timing to an indicated accuracy of 0.001 seconds.
I don't know what the timing accuracy of our equipment is, but timing to
0.01 seconds
would have created several more ties in the PAX championship.
My two comments are that three digits of accuracy are required, and that
current timing
equipment that offers three digits of resolution may not (probably doesn't?)
have enough
accuracy to time to +/- 0.001 seconds anyway, but we like to think it does
and score our
events accordingly.
-- Rick Brown
BP Corvette
-----Original Message-----
From: owner-autox@autox.team.net [mailto:owner-autox@autox.team.net]On
Behalf Of Patrick Washburn
Sent: Tuesday, June 11, 2002 5:48 AM
To: GPSoftware; autox@autox.team.net
Subject: RE: Wireless autocross timing equipment?
><<<<snip>>>>>
It's already obvious that timing accuracy won't be in the .001
> second range. Frankly, I've never understood why the SCCA requires this
> resolution, an
d my experience has been that there are many clubs that don't
> adhere to that rule and would rather have a system that is easy to use and
> affordable.
<<<<snip>>>>
Hi Gary. Just to let you know why the resolution is required, I lost third
place at Nationals by .001. That two days competition added together. You
need to go to the thousandth. And just for the record David Fauth, I'm
still not bitter. :-p
I know nothing about electronics, but instead of replying on the trigger
head to transmit the signal in real time and be limited by the physics of
wireless transmitting, why not have the trigger record the time on a RAM
chip or something built into the timer head and then transmit the recorded
signal at the more leasurly wireless pace? (I am assuming that the rate of
wireless transmitting is limiting the replution.) Would result in but a
couple micro-seconds delay and you could record the actual time in whatever
resolution you want. Just a dumb suggestion from someone who doesn't really
know what he's talking about.
Patrick Washburn
C-Tech Trailer Cabinets
Designed for the Racer
Wausau, WI
www.racecabinet.com
715-355-8842
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