No problems Howard. Ok i think i will take opposite approach and build to original specs and get it working, then i can try variation under carpet.

Congrats on the 50k views and all your hard work to make this possible for all of us!

thanks!

Hi Howard,

I have not had any luck getting a hold of Flip Side Racing concerning a version for Cano, no response in Miniz forums and no contact form on website. Do you have an email for them ?

For Zround i have found. For those who want the download link here it is http://www.zround.com/download.php?list.5

what is the third software company?

thanks!

I just emailed the FlipSide software to you.

The third company requested many changes to the data sent by the decoder to match their software, and I did not pursue it further.

got the software Howard, thanks.

About the errata below, does it still apply? was the PCB design corrected in the version i am using? this is for REV B if i understand, you would have corrected this in REV C but its not tested?

"The 1uF capacitor on U2 (the 7805 regulator) was mislabeled on the schematic (duplicated “C4” reference designators), and consequentially was not included on the board. The cap should be soldered directly to U2.

The node label “3D” was misplaced on the schematic at U20A pin 3, causing the connection to be ignored. A jumper must be soldered from U20A pin 3 to U21 pin 4."

Yes, the errata still applies. If you feel you want to take the risk, you could make the corrections before you made new boards.

FYI, I just updated the spec post, as I realized it still indicated the loop amp board was untested.

Received my decoder boards! they look great. Now working on getting transponder board design updated and then made. I will start building decoder as soon as i have all the parts.

http://www.hostingforcanada.com/denn...der_boards.jpg

Somes news ?
thanks

How many messages are send by a RC4 transponder ?
RC3 preamble + "ID" message
RC3 preamble +7 status messages
RC4 preamble + ?????

thanks.

I don't know the exact number for the RC4, or even if there is one. There were many more unique transmissions than I was willing to count.

If an Rc4 has no sequence message, Payalneg, how you detect an rc4 transponder ?

Thanks.

OK,thanks, between a RC3 and RC4 sequences on a RC4 transponder, have you seen some equal bit after their preamble ?

I don't have a a dog in this hunt, but could you place a sheet of shielding material between the concrete and the carpet? Instead of shielding the loop itself?

No, the loop can't be shielded since it needs to receive the field from the transponder. It needs to be as far away from any extraneous conductors as possible. Several feet would be best.

Welcome to the thread, Snoopy!

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.