====== Spectrum ======
^Wawelength^^Symbol^Frequency^^Name^
^from^to^:::^from^to^:::^
|10000 km|100000 km|@#7F6000:<color white>ELF</color>|3 Hz|30 Hz|Extremely low frequency|
|1000 km|10000 km|@#BF9000:SLF|30 Hz|300 Hz|Super low frequency|
|100 km|1000 km|@#F1C232:ULF|300 Hz|3 kHz|Ultra low frequency|
|10 km|100 km|@#FFD966:VLF|3 kHz|30 kHz|Very low frequency|
|1 km|10 km|@#FFE599:LF|30 kHz|300 kHz|Low frequency|
|100 m|1 km|@#FFF2CC:MF|300 kHz|3 MHz|Medium frequency|
|10 m|100 m|@#CFE2F3:HF|3 MHz|30 MHz|High frequency|
|1 m|10 m|@#9FC5E8:VHF|30 MHz|300 MHz|Very high frequency|
|10 cm|1 m|@#6FA8DC:UHF|300 MHz|3 GHz|Ultra high frequency|
|1 cm|10 cm|@#4085C6:SHF|3 GHz|30 GHz|Super high frequency|
|1 mm|1 cm|@#0B5394:<color white>EHF</color>|30 GHz|300 GHz|Extremely high frequency|