MAXVIEW 1 x Variable Gain Signal Booster 12V or 24v. The Variable Gain Signal Booster has been designed specifically for the mobile vehicle to maximise signal strength from any digital TV or FM/DAB radio aerial. Surface Mounting. Features fixing slots for flat surface mounting. Boosts and distributes the signal strength of all incoming UHF and VHF signals to enhance picture and sound quality. LED Power Indicator. Ideal for weaker signal areas. LTE/4G Compatible. Designed to filter out LTE band to ensure maximum DTT reception in 4G signal areas. Twin Output Allows the boosted signal to be supplied to two locations without compromising signal quality. Variable Gain Control Adjustable gain from 0-19dB allows the user to adjust gain for high and low signal areas.