<P> These ITU radio bands are defined in the ITU Radio Regulations . Article 2, provision No. 2.1 states that "the radio spectrum shall be subdivided into nine frequency bands, which shall be designated by progressive whole numbers in accordance with the following table". </P> <P> The table originated with a recommendation of the IVth CCIR meeting, held in Bucharest in 1937, and was approved by the International Radio Conference held at Atlantic City, NJ in 1947 . The idea to give each band a number, in which the number is the logarithm of the approximate geometric mean of the upper and lower band limits in Hz, originated with B.C. Fleming - Williams, who suggested it in a letter to the editor of Wireless Engineer in 1942 . (For example, the approximate geometric mean of Band 7 is 10 MHz, or 10 Hz .) </P> <Table> <Tr> <Th> Band name </Th> <Th> Abbreviation </Th> <Th> ITU band number </Th> <Th> Frequency and Wavelength </Th> <Th> Example Uses </Th> </Tr> <Tr> <Td> Extremely low frequency </Td> <Td> ELF </Td> <Td> </Td> <Td> 3--30 Hz 100,000--10,000 km </Td> <Td> Communication with submarines </Td> </Tr> <Tr> <Td> Super low frequency </Td> <Td> SLF </Td> <Td> </Td> <Td> 30--300 Hz 10,000--1,000 km </Td> <Td> Communication with submarines </Td> </Tr> <Tr> <Td> Ultra low frequency </Td> <Td> ULF </Td> <Td> </Td> <Td> 300--3,000 Hz 1,000--100 km </Td> <Td> Submarine communication, communication within mines </Td> </Tr> <Tr> <Td> Very low frequency </Td> <Td> VLF </Td> <Td> </Td> <Td> 3--30 kHz 100--10 km </Td> <Td> Navigation, time signals, submarine communication, wireless heart rate monitors, geophysics </Td> </Tr> <Tr> <Td> Low frequency </Td> <Td> LF </Td> <Td> 5 </Td> <Td> 30--300 kHz 10--1 km </Td> <Td> Navigation, time signals, AM longwave broadcasting (Europe and parts of Asia), RFID, amateur radio </Td> </Tr> <Tr> <Td> Medium frequency </Td> <Td> MF </Td> <Td> 6 </Td> <Td> 300--3,000 kHz 1,000--100 m </Td> <Td> AM (medium - wave) broadcasts, amateur radio, avalanche beacons </Td> </Tr> <Tr> <Td> High frequency </Td> <Td> HF </Td> <Td> 7 </Td> <Td> 3--30 MHz 100--10 m </Td> <Td> Shortwave broadcasts, citizens band radio, amateur radio and over-the - horizon aviation communications, RFID, over-the - horizon radar, automatic link establishment (ALE) / near - vertical incidence skywave (NVIS) radio communications, marine and mobile radio telephony </Td> </Tr> <Tr> <Td> Very high frequency </Td> <Td> VHF </Td> <Td> 8 </Td> <Td> 30--300 MHz 10--1 m </Td> <Td> FM, television broadcasts, line - of - sight ground - to - aircraft and aircraft - to - aircraft communications, land mobile and maritime mobile communications, amateur radio, weather radio </Td> </Tr> <Tr> <Td> Ultra high frequency </Td> <Td> UHF </Td> <Td> 9 </Td> <Td> 300--3,000 MHz 1--0.1 m </Td> <Td> Television broadcasts, microwave oven, microwave devices / communications, radio astronomy, mobile phones, wireless LAN, Bluetooth, ZigBee, GPS and two - way radios such as land mobile, FRS and GMRS radios, amateur radio, satellite radio, Remote control Systems, ADSB </Td> </Tr> <Tr> <Td> Super high frequency </Td> <Td> SHF </Td> <Td> 10 </Td> <Td> 3--30 GHz 100--10 mm </Td> <Td> Radio astronomy, microwave devices / communications, wireless LAN, DSRC, most modern radars, communications satellites, cable and satellite television broadcasting, DBS, amateur radio, satellite radio </Td> </Tr> <Tr> <Td> Extremely high frequency </Td> <Td> EHF </Td> <Td> 11 </Td> <Td> 30--300 GHz 10--1 mm </Td> <Td> Radio astronomy, high - frequency microwave radio relay, microwave remote sensing, amateur radio, directed - energy weapon, millimeter wave scanner, wireless LAN (802.11 ad) </Td> </Tr> <Tr> <Td> Terahertz or Tremendously high frequency </Td> <Td> THz or THF </Td> <Td> 12 </Td> <Td> 300--3,000 GHz 1--0.1 mm </Td> <Td> Experimental medical imaging to replace X-rays, ultrafast molecular dynamics, condensed - matter physics, terahertz time - domain spectroscopy, terahertz computing / communications, remote sensing, amateur radio </Td> </Tr> </Table> <Tr> <Th> Band name </Th> <Th> Abbreviation </Th> <Th> ITU band number </Th> <Th> Frequency and Wavelength </Th> <Th> Example Uses </Th> </Tr>

What is the frequency range for vhf and uhf
find me the text answering this question