Long wave band
|
2000–20000 m
|
30–300 kHz
|
Ground wave
|
Long distance communication
|
Mid-band
|
200–2000 m
|
300–3000 kHz
|
Ground wave
|
Broadcast, communication, navigation
|
Short wave band
|
20–200 m
|
3–30 MHz
|
Sky wave
|
Middle distance communication
|
Ultra-short wave band
|
I ~ 20 m
|
30–300 MHz
|
Linear propagation, scattering
|
Mobile communication, TV broadcasting
|
Decimeter wave band
|
200–2000 m
|
300–3000 MHz
|
Linear propagation, scattering
|
Mobile communications, satellite communications,
|
Centimeter wave band
|
I ~ 20 m
|
3–30 GHz
|
Straight propagation
|
TV broadcasting, radar
|
Millimeter wave
|
I ~ 20 m
|
30–300 GHz
|
Straight propagation
|
Relay communication, radar, satellite
|