Complex sentence: KWBM leases its digital subcarrier to Koplar Communications to extend the signal coverage of Fox affiliate KRBK; the subcarrier remaps to KRBK's channel 49 via PSIP.
Split into simpler sentences: KWBM leases its digital subcarrier to Koplar Communications to extend the signal coverage of Fox affiliate KRBK. The subcarrier remaps to KRBK's channel 49 via PSIP.