Outdoor Antenna: This is a high-performance outdoor antenna, specifically designed to receive signals from the SIRIUS satellites and terrestrial (ground) transmitters when mounted outdoors on a home or other building. * System Requirements: In addition to the included SIRIUS Satellite Radio antenna, you must have a SIRIUS tuner and subscription to SIRIUS Satellite Radio to receive SIRIUS programming. * Mounting options include wall mount, pole mount and roof mount * Adjustable antenna aiming * Designed to work with Sirius receivers only NOT compatible with XM receivers