In the United Kingdom, the term J Band is used by the Joint Radio Company to refer to their VHF communications band at 139.5–140.5 and 148–149 MHz used by fuel and power industries.[1]
ELF 3 Hz/100 Mm 30 Hz/10 Mm
SLF 30 Hz/10 Mm 300 Hz/1 Mm
ULF 300 Hz/1 Mm 3 kHz/100 km
VLF 3 kHz/100 km 30 kHz/10 km
LF 30 kHz/10 km 300 kHz/1 km
MF 300 kHz/1 km 3 MHz/100 m
HF 3 MHz/100 m 30 MHz/10 m
VHF 30 MHz/10 m 300 MHz/1 m
UHF 300 MHz/1 m 3 GHz/100 mm
SHF 3 GHz/100 mm 30 GHz/10 mm
EHF 30 GHz/10 mm 300 GHz/1 mm
THF 300 GHz/1 mm 3 THz/0.1 mm
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