When you are flying and you have only VHF radio equipment, what frequency will you use to receive VOLMET information?
VOLMET. Meteorological information for aircraft in-flight. Provision, as appropriate, of current METAR, SPECI, TAF and SIGMET by means of continuous and repetitive voice broadcasts. VOLMET is available on VHF and HF frequencies, where VHF-VOLMET covers regional areas and HF- VOLMET covers international areas. In this scenario, since we only have VHF radio equipment, we need to listen to the VHF-VOLMET frequency to receive meteorological information.
VHF-VOLMET transmits between 118 - 136.975 MHz which is the band used for Aviation Mobile Service voice communication.
FREQUENCY BAND | FREQUENCIES | WAVE BAND | WAVE LENGTH |
VLF - Very Low Frequency | 3 – 30 kHz | Very Long | 100 km – 10 km |
LF – Low Frequency | 30 – 300 kHz | Long | 10 km – 1 km |
MF – Medium Frequency | 300 – 3000 kHz | Medium | 1 km – 100 m |
HF – High Frequency | 3 – 30 MHz | Short | 100 m – 10 m |
VHF – Very High Frequency | 30 – 300 MHz | Short | 10 m – 1 m |
UHF – Ultra High Frequency | 300 – 3000 MHz | Ultra Short | 1 m - 10 cm |
SHF – Super High Frequency | 3 – 30 GHz (3000 – 30 000 MHz) | Super Short | 10 cm – 1 cm |
EHF – Extremely High Frequency | 30 – 300 GHz | Extremely Short | 1 cm – 1 mm |
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