SELECT "Transmitter Location" FROM table_39320 WHERE "Digital Power" = '570kw'
What transmitter location has digital power of 570kw?
CREATE TABLE table_39320 (
    "Region served" text,
    "ch 1" text,
    "On-air date" text,
    "Analogue Power" text,
    "Digital Power" text,
    "Analogue HAAT" text,
    "Digital HAAT" text,
    "Transmitter Location" text
)