Brenda Ann wrote:

There would be considerable phase shift at that distance, that and though
the 50,000 watts from KSL might make it halfway around the world in very
particular circumstances, the 500 watt IBOC sidebands most likely would not.
This compared to the fact that a 500 watt signal will do quite well over a
~1500 mile skywave path in many circumstances.

Between 1140 in Sacramento, and 1160 in SLC, 1150 in Los Angeles doesn't
have a chance in the mornings.