A Sacramento smooth jazz radio station is recasting itself as a rock station, but don’t expect the jazz-heads at Capital Public Radio to shed any tears. Gary Vercelli, CPR’s jazz music director, said the format switch at KSSJ 94.7 FM could be a boon for CPR’s three jazz shows. CPR, at 90.9 FM, wants to pick up KSSJ’s listeners.
 “We’re just hoping that people will find us” on the radio dial, Vercelli said. CPR and KSSJ shared the same pool of jazz listeners, he added. Vercelli said he was surprised to learn that KSSJ was overhauling its format. John Nelson, who is listed as a media contact for 94.7, was not immediately available Thursday afternoon and did not return two phone messages