VOR is ___ subject to static and interference than an NDB, and is ___ accurate
less, more
Transmissions (don’t) depend on ___
line of sight
Dodgy areas are ___ and at ___ abeam
overhead, 90 degrees
___ can occur over irregular ground surfaces.
Scalloping
A warning will be broadcast when there is a ___
- Reduction of more than 15% of the signal strength of the carrier or modulated components