Blog:

10.05.2011: After the first 5 devices from the commercial soldering have shown perfect functionality (just one resistor must be changed manually), the boards are avialable commercially.

09.05.2011: Mode-A/C decoding is working. This can be enabled with DIP switch #10

01.05.2011: Forward error correction of 1 Bit errors is working. It can be disabled with DIP switch #9

18.04.2011: I today got the information that the production will happen on Wednesday after Easter. I also decided to let only 1CH and 2CH boards beeing produced. For those who urgently and only need a 4CH unit I will offer a predelivery of 2CH and later upgrade to 4CH with the next lot, which is already on the horizon. This is due to the fact that I need some more gates and without doing so a group of 4CH boards would exist without the chance of doing overlap decoding and Mode-A/C.

17.04.2011: Sorry, you did not hear much from me during the last time. Some familiy circumstances, preparation of my mother company's open house, preparation of the flight to the UK, a short excursion to those people hunting weather sondes (2 founds!), a EMC training, and another item kept me busy to above the ears. Unfortunately there is no news about the boards in production, I hope I get some more news tomorrow. I will also create a page about the Mode-S Beast operation in Andover (SP11 6EA), Martlesham-Heath (indoor use!) and Felixtowe (N 51° 58.577 E 001° 21.660°). It was very interesting, in deed.

24.03.2011:

I am currently looking after the bit errors that the bit error driver tells me. It is pretty interesting, here are two samples of the signal when the driver indicated a bit error at this position. Even with an AD converter, it is hard to decide if this is a zero or a one:

I added a page about the CRC and Bit error correction driver

21.03.2011:
Final GO for the manufacturing of the boards for the first lot.