Only in that SIL=3 is an indicator that the other aircraft has a reasonably accurate baro altitude.
Otherwise, how could one tell?
SIL does not involve Baro Altitude or Geo Altitude, it is the Source Integrity Level or IOW the trustworthiness of the position source. A SIL of 3 indicates that the probability of exceeding the horizontal NIC containment radius is less than or equal to 1 X 10 exp -7.
Indeed, but all the emitters with “dodgy” baro altitude will be 0 or 1
