PCA SDR

You'll have to excuse me, as I've been out of the loop a while.
Are transponders used at the "Q" ?

Not yet. They're trying to figure out a way to anchor the wire loop to the asphalt. A couple of experiments with tapes and such have proven ineffectual. Any ideas on how to position/anchor the loop so that it stays put?

One discussion was to elevate the loop above the cars! Surely, there has to be a way to fasten or position the wire loop that will allow transponder use.

Use the swale. If we have a diagonal start and finish across the
swale, it allows the loop to be placed on the concrete edges.
But it really ties us to what courses we can layout.

Alternatively, the way the surface is broken up, it should be easy
to find enough cracks in the pavement

Seriously, the wires are so thin, it should not be difficult to find
some sort of ramp/surface to drive over protecting the loop. This
surface would not have to be more than ~5mm thick (that's less
than 1/4 inch if you've got a Corvette).

Paul.

At the kart races, they have the wire under a 1' wide piece of thin rubber that runs the length of the track. Seems to work pretty well, little cost and very mobile.

Jad wrote:.......that runs the length of the track. .

Jad you mean the "width" of the track don't you?....or am I misunderstanding you?

Jad's idea is a good one. I've used this stuff before for other applications.

Red Rooster wrote:

Jad wrote:.......that runs the length of the track. .

Jad you mean the "width" of the track don't you?....or am I misunderstanding you?

Depends on your perspective, but I think width probably would have been the better term

The problem is that we need something that can withstand cars going over it sideways or with the wheels locked up (sliding, not rolling) at the finish line. We also noted problems with wheel spin as well -- hard acceleration (on the starting end of the track).