radiofrequency

initialism: RF
https://doi.org/10.1351/goldbook.08279
Frequency or band of frequencies in the range \(\pu{E4}\) to \(\pu{E12 Hz}\).
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 670 [Terms] [Paper]