Hi all,

after reading the posts about AO-16 apparently going silent, I checked the data from the Delfi-C3 backup groundstation, which has been set up at Eindhoven University in the south of the Netherlands by Jeroen Vreeken, PE1RXQ, he did a great job automating the station using his own developed software. As a test, he let the station track AO-16 continuously for a couple of months since the beginning of this year, and a quick examination shows that telemetry stopped around the 22nd of May. (We both have not been able to manually track AO-16 and listen for a signal in order to make sure it's not a problem in the groundstation which could be since the rotor does not work 100%, but reading the other reports about AO-16 on the BB it seems that it has indeed stopped transmitting) On the following page you can find the telemetry files from the station at Eindhoven:

http://esther.esrac.ele.tue.nl/ao16/

note that of all passes, flac (audio) files are available, as well as raw kiss files (.kss) and ascii files (.asc) We used AO-16 extensively as a nice test signal generator since it produces AX.25 1200 bit/s BPSK just like Delfi-C3 will do soon hopefully:) Hope the command ops can get this bird working again!

By the way, we are working hard to complete Delfi-C3 for her launch, and are learning a lot from integration of the spacecraft!

73

Wouter Jan PE4WJ