CREATE TABLE table_65421 ("Branding" TEXT, "Call-Sign" TEXT, "Frequency" TEXT, "Power  ( kw ) " TEXT, "Location" TEXT)

What's the frequency of the call sign DYFR with 10KW of power?
SELECT "Frequency" FROM table_65421 WHERE "Power (kw)" = '10kw' AND "Call-Sign" = 'dyfr'
SELECT "Frequency" FROM "table_65421" WHERE "Call-Sign" = 'dyfr' AND "Power (kw)" = '10kw'