Frequency bands and their applications
The radio frequency spectrum
|
Frequency |
Wavelength |
Band name |
Applications |
|
< 3 Hz |
> 100.000 km |
||
|
3 - 30 Hz |
100.000 km - 10.000 km |
Super low frequency - SLF |
Communication with submarines |
|
30 - 300 Hz |
10.000 km - 1000 km |
Ultra low frequency - ULF |
Communication in mines |
|
50 Hz |
6000 km |
Alternating current |
Powersupply |
|
0-10 kHz |
30 km |
Telegraphy |
|
|
0,3 - 3 kHz |
1000 km - 100 km |
Extremely low frequency - ELF |
Communication with submarines |
|
3 - 30 kHz |
100 km - 10 km |
Very low frequency - VLF |
Military communications, wireless heartmonitors |
|
16 kHz - 20 kHz |
18750 km |
Soundfrequency |
Music, speech |
|
30 - 300 kHz |
10 km - 1 km |
Low frequency - LF |
Navigation, timesignals, AM-longwavetransmissions |
|
0,3 - 3 MHz |
1000 m - 100 m |
Medium frequency - MF |
AM - transmissions (midwave) |
|
3 - 30 MHz |
100 m - 10 m |
High frequency - HF |
Shortwavetransmissions and amatureradio |
|
26,9 - 27,2 MHz |
11 m |
ISM-band |
Remotecontrols with transmissionpower < 10mW |
|
30 - 300 MHz |
10 m - 1 m |
Very high frequency - VHF |
FM-radio and television broadcasts |
|
40,6 - 40,7 MHz |
7,4 m |
ISM-band |
Remotecontrols with transmissionpower < 10mW |
|
174 - 223 MHz |
1,7 - 1,3 m |
Very high frequency - VHF |
Television |
|
300 - 3000 MHz |
10 - 0,1 m |
Decimeterwave |
Television, broadcasts |
|
433,05 - 434,79 MHz |
69,3 - 68,9 cm |
ISM-band |
Remotecontrols and headphones with transmissionpower < 10mW |
|
868 MHz |
34,6 cm |
ISM-band |
ISM remotecontrols, duration of transmittion limited |
|
0,3 GHz - 3 GHz |
1 m - 10 cm |
Ultra high frequency - UHF |
Television broadcasts, cellphones, Bluetooth |
|
3 - 30 GHz |
10 cm - 1 cm |
Super high frequency - SHF |
Microwaves, cellphones (W-CDMA), WLAN, radar |
|
30 - 300 GHz |
10 cm - 1 mm |
Extremely high frequency - EHF |
Radioastronomy securityscan (Schiphol airport) |
|
> 300 GHz |
< 1 mm |