Features: This is an SPF5189 0.6dB Low Noise LNA RF Amplifier Board. Used as a high-frequency or intermediate-frequency preamplifier for various radio receivers and amplifier circuits for highly sensitive electronic detection devices. LNA: 50 to 4000 MHz. NF: 0.6 dB. Suitable for major mobile communication base station infrastructure, such as wireless communication transceiver boards, tower-mounted amplifiers (TMA), combiners, repeaters, and distal/digital wireless broadband terminal applications. Specifications: Type: Voltage Regulator Model Number: SPF5189 LNA: 50 to 4000 MHz LNA0: 0.6 dB Amplifier: FM Material: Electronic Component Color: Green Weight: 8g / 0.3oz Size: 5.3 * 2.4 * 0.6 cm / 2.1 * 0.9 * 0.2 inches Package List: 1 * SPF5189 LNA 50-4000 MHz RF Amplifier Board