Pitot problems solved.
I had a lengthy issue with my pitot system, coupled to the MuxBox. Tonight I had one Pitot on loan as mine is abroad and It gave the same reading (55-60 km/h)
Then I hooked it to a LinkVario Duo and by jove finally I got an acceptable value of 16kmh, which is already good.
But then I loaded firmware 1.1 on the MuxBox which Jens had send to me, and lo and behold, it shouted ZERO on startup!!
Took quite some time to have this corrected, but OK, next season I finally fly with IAS!!!
Currently You have a speed call every 10 sec, which would be too meager for final, I suggested to Jens to look if it would be possible to select via the Muxbox 3-pos switch different speed calls. In a reasonable steady flight like a climb every 10 sec would be OK, but on final I would like tobe able to select continuous calls, also only the speed, not the KMH part, which only takes up time.