Dme
Uhf frequency
Paired with with VOR/ILS
Trasnmission
Transmits in a unique pulse pair
Prevents a/c listening to replies intended for other a/c
Groundstation replies after 50us delay» to preven interferenfe when close proximity
Dme station
Rho rho fix
Dme ;dme
Rho /theta fix
Vor /dme
When paired wiht vor ils
The heard sound is at higher frequency every 40 sec
Vor idennt x 3 as lower frequency tone for 30 sec
Dme ident x1 at higher frequency
Saturation
100 is the max
after that the weakest signals are ignored
Slant range
Distance measured within eyesight
Use pithagora to get ground distance
Ground distance is always less than range