FM Signal Amplifier Adjustable 30dB Gain Low Noise 50-138MHz Dual Power Compatible with Passive Antenna Global FM Freque

Specifications Frequency Coverage 50 138 MHz supporting global FM standards 88 108 MHz and extended AIR band Gain Adjustable from 0 to 30 dB with fine tuning rotary knobNoise Level Low noise amplification for optimal signal integrityPower Supply Internal rechargeable lithium battery Type C 5V charging or external 9 12V DC 5 5 x 2 1mm center positive Interface SMA female connectors Left ANT for antenna Right RADIO for receiver Note This amplifier is suitable for areas with weak FM signals or certain frequencies with very weak signals Features 1 Versatile Frequency Support Covers standard FM frequencies 88 108 MHz with extended range capability 50 138 MHz for international compatibility 2 Advanced Filtering Equipped with high quality Murata TDKs and Samsungs components paired with dual stage shielding to reduce interference 3 Flexible Power Options Supports dual power modes built in rechargeable battery or external DC power for portability and extended use 4 Optimized for Passive Antennas Enhances signals from various FM antenna types such as Yagi and Dipole for better reception 5 The power supply filter consists of solid state capacitors and NPO grade MLCCs supporting external 9 12V power supply It also has a built in high capacity lithium battery for rechargeable use 6 Gain 30dB with a knob for continuous adjustment from 0 30dB providing low noise amplification 7 Power Supply Built in battery powered Type C 5V charging or external 9 12