Radio Band | Uses |
|---|---|
UHF Band Frequencies: 300-3000 MHz (1 MHz = 1,000,000 Hz = 1 million wave cycles per second) |
 TV (Channels 14-83 in US & Canada), aircraft & ship navigation, police and emergency communications |
Wave Paths | Effects of Space Storms |
  Line-of-sight paths are used (limited to ~50 miles). Also satellite links are used for distant communications. |
For Satellite-to-Ground Communications: Signal quality is affected by irregularities in the ionosphere which produces phase and amplitude variations in the received signal. Irregularities are enhanced, particularly at polar latitudes, during space weather disturbances. |