A320 Mode S
For the airbus experts
If the transponder is left in Auto after parking, does the mode S keep on transmitting non-stop?
FCOM 1 is not specific about this issue, and every pilot has a different opinion.
some say: live it in Auto, it's not an issue!
some others: put it on SBY because mode S is transmitting!
not to confuse with the other modes which are connected to the nose gear or air/ground logic.