Interesting and devastating at the same time...
With the obvious exception of WIP, this would be the first Philadelphia AM with significant listenership to destroy its air signal with IBOC (for half the day). But WIP's processing has historically been so muddy anyway that fewer noticed than would likely be annoyed should KYW be forced to do the deed. What a shame to hear the nice, crisp audio of this station reduced to sounding like a telephone line.
And to think, it's all so unnecessary. (Those who heard the Brusstar Plan to fix the HD-On-AM problem unveiled on the Racket know there's a better way-- not as good as abandoning this nonsense altogether, but certainly better than ruining the audio of one of the few AM stations anyone ever listens to anymore.)
KYW should be the absolute last AM station in the market to "test" this "technology". Flintstone's right with his tree-falling-in-the-forest analogy, but unfortunately the hundreds-of-thousands who do listen to 1060 (with regular analog radios) will hear the harmful effects of "HD" hash.
Let's hope this rumor is unfounded, at least for the immediate time being.