SLx USB-Powered TV Signal Booster – 1-Way Aerial Amplifier with 4G/5G Filter & Adjustable Gain

Give your Freeview setup a clarity boost with the SLx USB-Powered TV Signal Booster. This upgraded 5G-filtered range from British AV specialists refines the UK’s best-selling amplifiers with improved power efficiency, better gain flatness, and lower noise—engineered for reliable, continuous use behind your TV. Just plug into your set’s USB port and enjoy a stronger, cleaner signal without a bulky power brick.

Fine-tune reception in seconds. The front-mounted adjustable gain control lets you compensate for long or short cable runs and signals that are either too weak or too strong—helping prevent pixelation, audio dropouts, and channel instability.

Stay interference-free. A built-in Class 1 4G & 5G filter protects your TV signal from mobile network noise, supporting digital TV channels Ch 21–48 (470–694 MHz). With low noise figure design and improved signal handling, you’ll get crisp picture and clear sound across more channels.

Installation is simple: coax in, coax out—done. The compact 1-way amplifier fits neatly behind the TV, powered directly by USB for tidy, energy-efficient operation you can set and forget.

Type: 1-way TV aerial amplifier (booster)
Power: USB-powered (no separate PSU required)
Gain: User-adjustable to optimize weak/strong signals
Filtering: Class 1 4G & 5G interference filter
Frequency support: Digital TV Ch 21–48 (470–694 MHz)
Noise performance: Low noise figure for better picture & sound
Connectivity: Coax input & output (plug-and-play)
Design: Compact, fits out of sight behind TV; energy-efficient for continuous use
Use cases: Freeview setups with long cable runs, split feeds, or marginal signal areas
What’s improved: Better power efficiency, improved gain flatness, enhanced signal handling