There are many discussion involving the AoA involvement in recent accidents, all based on the FDR, but where in the AoA system is the FDR recording made ?
Is this an analogue or digital value ?
Is the vane output analogue or digital; if analogue output and digital FDR input, where is the A 2 D made ?
Do the aircraft systems used different types on input. Assuming that fight guidance - STS and MCAS are digital, would stick shake be a separate analogue value, or as depicted in some diagrams a digital output of the FGC ?