http://mag1.olivesoftware.com/activemagazine/welcome/RWM/RWM_Dec05-2007.asp
December 5, 2007
Adjacent-channel AM IBOC nighttime interference is not mild
Each and every one of those digital subcarriers contributes to the generation of audible noise in an AM receiver tuned to the first-adjacent channel of an IBOC station, and they must all be considered in any interference analysis.
Featured in the Dec 5 2007 online edition of Radio World Magazine. To read the magazine please click on the magazine image, and go to page 5. Note: this link may only work for the current week.