schematic problem
I think the diode at the input is backwards, if the connector P1 is the power supply plug connector. I built one from your schematic and it seems to work ok, the led is blinking. Now just need to test it on my decoder loop and see if it picks up. This is on the transponder schematic.
The Diode D3 is supposed to be a reverse voltage protection, so you are right it is the wrong way. I have no idea what i thought when i placed the VCC +BATT and P1 because they should be on the same side of the diode to be more clear.
I don' the know how many times I have gotten them backwards. I also left some coments on the transponder thread on rc tech.Com. but got it figured out about bse.exe vs rctcode.jar. thanks for you work.