EasyEDA project for easy and quick build "LNA, Bias Tee powered + filtering" module for amplify weak radio signals without significantly increasing the noise level and compensation for loss of useful signal when passing through a coaxial cable, with additional filtration before amplifier. Project includes schematic and PCB containing place for FV1206/GE0805C-3 filter and prepared for setting up into aluminum enclosure with dimensions 50 x 25 x 25 mm with N-Type connectors. Version for mounting SMD components. ## Current development progress: [](https://github.com/IgrikXD/Easy-SDR) [](https://github.com/IgrikXD/Easy-SDR) [](https://docs.google.com/forms/d/e/1FAIpQLSeUFM1p15N_vk8X_blSnZp6jPlZe_qRhiRlmntscx6jF2yRqw/viewform?usp=sf_link) **Input voltage:** DC 3.3 - 5.0 V (powered via Bias Tee); **Maximum DC current:** 76 mA (PSA4-5043+), 200 mA (PGA-103+); **Frequency range:** 50 MHz - 4 GHz (according to the datasheet on PSA4-5043+ and PGA-103+, upper frequency may be unattainable with FR-4 PCB material); **Gain characteristics table (+5 V supply voltage):** | Frequency | PSA4-5043+ | PGA-103+ | | ----------------- | ---------- | -------- | | 50 MHz | 25.4 dB | 26.5 dB | | 400 MHz | 22.1 dB | 22.1 dB | | 1 GHz | 18.4 dB | 16.2 dB | | 2 GHz | 13.3 dB | 11.0 dB | | 3 GHz | 10.2 dB | 8.1 dB | | 4 GHz | 8.0 dB | 6.2 dB | **Noise Figure characteristics table (+5 V supply voltage):** | Frequency | PSA4-5043+ | PGA-103+ | | ----------------- | ---------- | -------- | | 50 MHz | 0.73 dB | 0.5 dB | | 400 MHz | 0.65 dB | 0.5 dB | | 1 GHz | 0.75 dB | 0.6 dB | | 2 GHz | 0.98 dB | 0.9 dB | | 3 GHz | 1.1 dB | 1.2 dB | | 4 GHz | 1.44 dB | 1.5 dB | **Output IP3 characteristics table (+5 V supply voltage):** | Frequency | PSA4-5043+ | PGA-103+ | | ----------------- | ---------- | -------- | | 50 MHz | 31 dBm | 36.7 dBm | | 400 MHz | 32.1 dBm | 39 dBm | | 1 GHz | 33.5 dBm | 41.9 dBm | | 2 GHz | 32.7 dBm | 44.6 dBm | | 3 GHz | 33.6 dBm | 44.3 dBm | | 4 GHz | 32.6 dBm | 45.4 dBm | **Valid filters for use:** [any filters with FV1206 or GE0805C-3 case][5]; **RF connector:** N-Type; **Feed line:** 50 Ohm coaxial cable; **Used PCB Material:** FR-4; **PCB thickness:** 1.6 mm; **PCB copper weight:** 1 oz; [EasySDR project page at GitHub][1] Buy SDR receiver: [RTL-SDR.COM][2] Buy PSA4-5043+ Low Noise MMIC Amplifier: [Mini-Circuits PSA4-5043+][3] Buy PGA-103+ Low Noise Amplifier: [Mini-Circuits PGA-103+][4] Buy filters with FV1206 case: [Mini-Circuits RF-Filters][5] [Order PCB manufacturing using PCBWay service][6] ## How to contact me? - E-mail: igor.nikolaevich.96@gmail.com - Telegram: https://t.me/igrikxd - LinkedIn: https://www.linkedin.com/in/igor-yatsevich/ [1]: https://github.com/IgrikXD/Easy-SDR [2]: https://www.rtl-sdr.com/shop/ [3]: https://www.minicircuits.com/WebStore/dashboard.html?model=PSA4-5043%2B [4]: https://www.minicircuits.com/WebStore/dashboard.html?model=PGA-103%2B [5]: https://www.minicircuits.com/WebStore/RF-Filters.html [6]: https://www.pcbway.com/QuickOrderOnline.aspx