NVIS

Near Vertical Incidence Skywave

NVIS Applications: Military

1. What is NVIS?
2. Applications of NVIS
   • Military
     • NVIS range equivalent to tactical theater
     • Pure NVIS difficult to DF
     • Pure NVIS difficult to jam
     • Multiple HF channels
     • ALE (Automatic Link Establishment)
     • Antenna systems optimized for military NVIS requirements
   • Civil Defense
   • Amateur Radio Public Service
   • Casual Amateur Radio
3. Antennas for NVIS
4. NVIS Frequency Selection