Optima MA25-4AK 4-Way TV Aerial Masthead Amplifier with Integrated 4G Filter - Black
12v 100mA PSU with F connectors for all active Vision Masthead Products V23-1201 - Vision Products (Europe) Ltd
OPTIMA MA20-4LTEKIT F 4 Way Masthead 21-60
TV Aerial - TCFTT Digital TV Aerial Indoor 250+ Miles Long Range - Amplified HD TV Antenna Indoor for Freeview TV Support 4K 1080P Local TV Channels on OnBuy
Plug In Signal Boosters
How To Fit A MASTHEAD AMPLIFIER & Power Supply Unit - YouTube