Astrophysics (Index)About

high frequency

(electromagnetic radiation, frequency 3-30 MHz)

Radio astronomy uses the term high frequency (HF) which is the ITU term for the radio spectral band from 3-30 MHz, with the term very high frequency (VHF) as the next step for higher frequency. These are used within communications for FM radio and television. Radio astronomers sometimes use HF/high frequency in this manner but may sometimes use the term in a more general sense for relatively high frequencies within the radio band, extending much higher than 30 MHz, e.g., extending into microwave.

Further reading:
10m30MHz124neVbeginhigh frequency
100m3MHz12neVendhigh frequency

Referenced by pages:
pulsar (PSR)