SB51 Single-Input TV Antenna Preamp with Adjustable 20–30 dB Gain

The SB51 preamp is a single-input, mast-mounted antenna preamplifier designed to help boost over-the-air TV reception when signal strength is marginal. Built for VHF, UHF, and FM coverage across channels 2–60, it supports common rooftop and attic antenna setups where added amplification can improve usable signal levels before the coax run to your television or tuner.

For cleaner reception in today’s crowded RF environments, the SB51 includes an LTE filter to reduce potential interference from nearby cellular signals, along with a switchable FM trap to help manage strong FM broadcasts. With variable gain from 20 to 30 dB, you can dial in amplification to match your installation needs and avoid excessive gain in strong-signal areas.

Key Features of the SB51 Adjustable-Gain Antenna Preamp

• Adjustable Gain Control: Variable gain from 20–30 dB to fine-tune amplification for your antenna and signal conditions.
• Wideband Reception Support: Designed for VHF/UHF/FM coverage across channels 2–60.
• LTE Filter: Helps reduce interference from nearby LTE/cellular signals for more stable reception.
• Switchable FM Trap: Optional FM filtering to help mitigate overload from strong local FM stations.
• Single-Input Design: Simple, streamlined connection for single-antenna installations.
• Mast-Mount Installation: Preamp mounts at the antenna location to amplify signal early in the signal path.

Technical Specifications

• Model: SB51
• Type: Preamp (VHF/UHF/FM)
• Supported Channels: 2–60
• Gain: Adjustable 20–30 dB
• Input: Single input
• Filtering: LTE filter; switchable FM trap

What’s Included

• Mast Mounted Preamp: Outdoor preamplifier unit for installation near the antenna.
• Indoor Power Supply: Provides power for the preamp from inside the home.
• Power Inserter: Sends power up the coax line to the mast-mounted preamp.