"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

ATTENUATION. The ability of a filter circuit to reduce the amplitude of unwanted frequencies to a level below that of the desired output frequency.

Attenuation vs Frequency,
24 AWG Twisted Pair Cable