In some cases VOR receivers do not consistently provide the FCC with an output at Station Passage, which will satisfy the FCC Over station logic when no dme signal is present. Additionally the station passage logic using the dme signal will not be correctly triggered if the station elevation is greater than 5000msl. Failure to sense station passage can result in excessive maneuvering when passing through the cone of confusion and intercepting the outbound radial
I DID NOT REALLY UNDERSTAND........
CAN YUO EXPLAIN SIMPLE WORDS
AFDS means auto flight directio system.....in few word autopilot e flight director modes....