The STH4000 boosted antenna with LTE filtering is designed specifically for use with digital televisions. It is light weight, compact and very easy to use. With its unique flexible mounting system it can be installed indoors or outdoors in seconds. The integrated 20db amplifier can be powered by the antenna power out function found on most set top boxes and all Avtex digital televisions. Alternatively, the STH4000 uses a 12/24 volt dc power inserter (included) perfect for caravanners and truckers alike!