Before I can live with other folks I've got to live with myself. The one thing that doesn't abide by majority rule is a person's conscience.
-Harper Lee (1926- )

radio frequencies

The .pdf below has a map of various radio frequency uses as standardized in the USofA. Below that are pictures of each page in that .pdf.

The phrases high frequency (HF), short wave, very high frequency (VHF), ultra high frequency (UHF), and microwave are relative terms from when people first began utilizing those particular areas of the radio waves.

Frequency Allocations .pdf