04-05-2013, 10:09 PM
The various meter bands are used at different times of the day. 49m (6 MHz) is mostly a nighttime band. 31m (9 MHz) is a night and day band. 25m (12 MHz) is a daytime band. 19m (15MHz) is a late afternoon band. The major broadcasters move among these bands, sometimes broadcasting on more than one at a time because of differences in the coverage of the different bands during different times of day.