Originally Posted by OM2KW (Post 13464067)

Hi Howard,

i do not have access to decoder now, can you or anybody test to generate the same number with different 'ghost bits' and check which of them works ?

Originally Posted by snoopyrc (Post 13335408)

Ok. I don't know enough about it. I was thinking of it more as shielding the concrete than the loop. Stacked as concrete, shield, loop, and carpet.
(Edit: Or if using a bridge; concrete, shield, carpet, transponder, loop.
Can shielding material be bought in sheets? Surely guys who do car stereo installations use something like that.)

I haven't chimed in, but I have been lurking. I have an RC4, but it was very hard to come by. I think the club for who can be a race director is too exclusive, too expensive, and just too difficult to get into. You and this thread. You have kicked a door open, for those who may not be loaded, but are determined or otherwise able to do it. You have made a way.

Decoders should be five or six hundred bucks. Transponders less than forty, but that is just my daydream. You are doing a good thing here. I wish I had more to contribute than my encouragement.

Originally Posted by walsmi (Post 13495585)

Hi,
if anybody is interested in this project, I have a few PCB's here.
When I ordered them I got a few more delivered.
It's Cano's Layout as you can see in the pictures.

Just PM me and we talk about the price and shipment (I live in Germany).

Mike

Originally Posted by rc-demon (Post 13573591)

Hello Howard,

I am in the process of building my board finally!

A question for you, concerning the Crystal that goes in XTL61, there are 3 holes. Which holes do we use?

thanks!

Originally Posted by howardcano (Post 13577534)

J65: square pad is data out, round is ground. The wiring for the DE9 will depend on what you are connecting to, but here are some typical connections:

http://pinouts.ru/SerialPorts/Serial9_pinout.shtml

Originally Posted by rc-demon (Post 13578092)

thanks for the reply. I am connecting to the serial port of a Laptop or PC to use with timing software.

So it would be pin 3 & 5 on serial connector? (TXD & GND)

Originally Posted by howardcano (Post 13578496)

I'm using pins 2 and 5 to connect to the Sabrent SBT-USC6M USB to Serial Adapter Cable.

If you are using FlipSide scoring software, you will also want to connect pin 1 (square pad) of J66 to the incoming RS232 data (pin 3 on the DE9, in my case). This was a last-minute change requested by FlipSide; any character received by the decoder will reset the internal timebase counter.

Originally Posted by rc-demon (Post 13578833)

Im not sure i understand why your using pin 2 on the serial connector since thats to receive data, isnt the decoder sending data to PC ? so it should be pin 3 (transmit data) ?

Originally Posted by howardcano (Post 13579656)

The labeling is for the connector on the PC. The PC receives data on pin 2, so that's where the decoder needs to send it.

Originally Posted by rc-demon (Post 13580630)

silly me! i had things backwards, i fully understand now. thanks for clearing that up.