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From: "Richard Sim"
Subject: Re: Detecting moment when a fast moving object passes over a line
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Date: Sat, 23 Nov 2002 20:28:56 -0500
NNTP-Posting-Date: Sat, 23 Nov 2002 20:28:52 EST
Organization: Cogeco Cable
"Phil Allison" wrote in message
> ** Nonsense - every club I know of has one or shares one with
I'm from Australia too, and I know for a fact that a lot of small clubs
there do NOT have an automatic lap counting system - a good number just use
a box that you push a button on that corresponds to which car passed the
start/finish line. I've been racing for about 13 years, so I know how things
are organized in Australia quite well, so please don't try to say
otherwise - the clubs in your area may very well have this kind of system,
but that doesn't mean that they all do. My club used to borrow a system from
ORRCA for big races.
The story is much the same here in Canada (where I moved recently), and just
about everywhere else - the demand for a cheap alternative to the commercial
systems is quite large.
> ** Did you ?
Uhh.. *rolls eyes*.
I may not have an electronics engineering degree, but neither do a lot of
hobbiests, and that doesn't mean I know nothing of electronics. I did say
that I'm a beginner, which I am, but not as much of a beginner as you have
taken it to mean.
> ** You have explained nothing. You mention Hall effect and then RF -
> how does your transponder output a signal to the receiver ? Is it a
> frequency signal ? If so what is the frequency ? Modulation ?
I stated the manufacturer and models of the RF modules that I'll be using in
the origional post - the ES series that I'll be using operate on 916 MHz
(FM), and the LC series that I'm prototyping with operate on 433MHz (AM).
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