This RF amplifier has low noise coefficient, it is RF LNA amplifier. Usually used as a high or medium frequency preamplifier for a wide range of radio receivers, as well as amplification circuits for highly sensitive electronic detection devices. When amplifying a weak signal, the noise of the amplifier itself can be very serious, so there is hope that this noise will be reduced to improve the signal-to-noise ratio at the output. Application: LNA for major mobile communication base station infrastructure applications such as wireless communication transceiver card, tower mounted amplifier (TMA), summator, repeaters and downstream/digital wireless broadband endpoint device application design. This RF LNA low noise amplifier is 50-4000MHz, NF 0,6dB. LNA: 50-4000 mhz NF: SPF5189Z LNA0: 0,6 dB Amplifier: FM Size: 34x25mm / 1.33x1.0 inch Weight: 10g The package includes: 1 x RF LNA 50-4000 MHz SPF5189 amplifier Please be aware: