Features: This is a SPF5189 0.6dB low noise LNA RF amplifier board. Used as a high frequency or intermediate frequency preamplifier of various radio receivers and amplifier circuits of 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 amplifier (TMA), combiner, repeater and distal/digital wireless broadband terminal applications. Features: 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 inch Package list: 1 * SPF5189 LNA 50-4000 MHz RF amplifier board