Zach said:
And today, I was actually IN Memphis and I counted four stations out of sync out of about eight signals. Terrible! Sound quality, programming issues of subchannels and reception issues aside, the sync issue is what will drive people to put a foot through their dashboards in anger.
Time alignment is also still a problem in southern California, according to the latest report from Brian, K6STI, who monitors his local stations on a regular basis. Scroll to the bottom for recent measurements.
http://www.ham-radio.com/k6sti/roster.htm
I can't say the IBOC system is nifty, but it certainly is drifty. I guess what we need is for someone to modify the guts of an old RCA "Iron Fireman" exciter to automatically turn the knob on the delay box. We've tried just about everything else.