Don’t know but Rush is syndicated by Clear Channel’s Premiere division and they have been known to take Rush from another station to their own, even if their own has a worse signal.
In Boston Rush and other Premiere shows like Beck and Coast to Coast were on Entercom’s WRKO but they got pulled and sent to the “new” WXKS Talk 1200 (known for a time as Rush Radio)
So maybe Clr Chnl made the decision
also via radio-info’s San Fran board:
>>Melanie Morgan is back on the KSFO morning show, along with Suss and Katie.