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    ZK04UM LNA Amplifier,100kHz4GHz 18dB Gain USBPowered Preamp Compact Lownoise Broadband with Adjustable Bias for Tinysa Ultra Spectrum Analyzer RF Test, Ham Radio & SDR Receiving

    Limited time offer, ends 10/29 By PureSpring Trading Shop

    • High-Performance LNA Module: Wide frequency range 100kHz-4GHz, 18dB typical gain, OP1dB: 17dBm Typ. Low-power & low-noise design. Can replace SPF5189Z and SPF5043Z modules for your RF projects. USB-Interface Powered: Convenient USB power supply, supply current 26mA. Equipped with off-chip bias, you can adjust the bias resistor to reduce working current according to actual demands. Effectively Reduce Noise Floor: Built-in high-PSRR LDO reduces power-supply noise. Compared with other USB direct-feed LNA modules, it delivers lower noise floor and better receiving performance. Practical Application: Works perfectly as a preamplifier for TinySA ULTRA. TinySA ULTRA built-in LNA only performs well below 3.5GHz. This external LNA greatly improves high-frequency measurement sensitivity. Compact Structure & Important Tips: Shielded compact housing. Avoid excessive input power to prevent saturation or hardware damage. Keep it away from moisture for outdoor usage; the metal shell may rust under humid environment
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    High-Performance LNA Module: Wide frequency range 100kHz-4GHz, 18dB typical gain, OP1dB: 17dBm Typ. Low-power & low-noise design. Can replace SPF5189Z and SPF5043Z modules for your RF projects.
    USB-Interface Powered: Convenient USB power supply, supply current 26mA. Equipped with off-chip bias, you can adjust the bias resistor to reduce working current according to actual demands.
    Effectively Reduce Noise Floor: Built-in high-PSRR LDO reduces power-supply noise. Compared with other USB direct-feed LNA modules, it delivers lower noise floor and better receiving performance.
    Practical Application: Works perfectly as a preamplifier for TinySA ULTRA. TinySA ULTRA built-in LNA only performs well below 3.5GH z. This external LNA greatly improves high-frequency measurement sensitivity.
    Compact Structure & Important Tips: Shielded compact housing. Avoid excessive input power to prevent saturation or hardware damage. Keep it away from moisture for outdoor usage; the metal shell may rust under humid environment

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