DX Antenna CS/BS-IF/TV Booster CW40MSG Power-on confirmed. There are some scratches, but there are no issues with use. [Product Description] This booster amplifies CS/BS-IF and CATV signals, supporting 4K8K satellite broadcasts (3224MHz) and CATV (962MHz) in both directions. It is used to strengthen radio waves when the TV signal is weak or when it is necessary to send the TV signal to multiple TVs. This product has a high-shielding structure that is resistant to and does not easily affect radio waves from Wi-Fi, mobile phones, professional radio, and amateur radio, etc.