I read yr message last night and heard 1140 today but didn't hear IBOC. Are they turning it on and off?
The KXNT IBOC signal is terrible. There's hash even on 840 itself. Maybe they're still working on the transmitters? Driving down in Henderson with all the power lines (and the null), Bob Brinker's Moneytalk was unlistenable this weekend. Bob Brinker, and his wife, I believe, maintain a home somewhere in the valley, ABC should try to get him on KDWN. Likewise with C2C, that null at night is worse than during the day.
I've also had trouble getting KGO from San Francisco, but 2002 when I was last here, this was not the case. Not sure why, any ideas? IBOC from a local station? Maybe KGO is now in IBOC day and night?