"Beginning in January 2017, the voice mode used for W1AW's 40 meter voice bulletins will be full-carrier, double-sideband AM." http://www.arrl.org/w1aw-operating-schedule#voice These air M-F at 0245Z This makes tremendous sense given that 7290 is one of the most recognized AM frequencies and represents a move by the ARRL to utilize a mode that is seeing a resurgence in popularity.