document updated 10 years ago, on Jan 10, 2015

band	frequencies	spacing
AM radio	540 - 1610 kHz	10 kHz
FM radio	87.8 - 108.0	0.2 MHz
NOAA weather	162.400 - 162.550	0.025 MHz
CB	TODO	TODO
FRS/GMRS	462.550 - 462.725 467.5625 - 467.7125	0.025 MHz
shortwave radio	TODO	TODO
ham radio	lots TODO	TODO
ATSC TV	it's digital, my scanner can't decode

Print this out and carry it with you. Note: applies to the U.S. only; other countries are similar but not the same.