CREATE TABLE table_63070 ("Frequency" TEXT, "Call sign" TEXT, "Branding" TEXT, "Format" TEXT, "Owner" TEXT)

What is the frequency for the radio owned by bell media with a call sign of chsu-fm?
SELECT "Frequency" FROM table_63070 WHERE "Owner" = 'bell media' AND "Call sign" = 'chsu-fm'
SELECT "Frequency" FROM "table_63070" WHERE "Call sign" = 'chsu-fm' AND "Owner" = 'bell media'