SELECT "Webcast" FROM table_5489 WHERE "Website" = 'digital1073.com'
Which Webcast has the digital1073.com website?
CREATE TABLE table_5489 (
    "Frequency" real,
    "Callsign" text,
    "Brand" text,
    "Format" text,
    "City of License" text,
    "Website" text,
    "Webcast" text
)