You have got to be kidding. For about two weeks I could not get KOH on
780 until someone turned off their IBOC noise maker evenings.

KOH was never meant to reach Ventura.
Considering their 50 kW main lobe goes straight toward Ventura I'd say
your statement flies in the face of the physics of EM propagation.

WBZ's lobe goes straight towards Ventura too....but was never meant to be
reliably listened to there.

Same for KOH.