EasyEDA project for easy and quick build "Balun" module used to convert a balanced signal to a unbalanced and match the impedances. Project includes schematic and PCB prepared for setting up into aluminum enclosure with dimensions 50 x 25 x 25 mm with SMA 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) **Frequency range table:** | Transformer: | TC1-6+ | TC2-1T+ | TC4-1T+ | TC8-1+ | TC9-1+ | TC16-161T+ | | ----------------- | -------------- | ----------- | ------------- | ----------- | ------------| ------------- | | Frequency range: | 0.15 - 350 MHz | 3 - 300 MHz | 0.5 - 300 MHz | 2 - 500 MHz | 2 - 200 MHz | 0.6 - 160 MHz | **Impedance ratio table:** | Transformer: | TC1-6+ | TC2-1T+ | TC4-1T+ | TC8-1+ | TC9-1+ | TC16-161T+ | | ----------------- | ------ | ------- | ------- | ------ | ------ | ---------- | | Impedance ratio: | 1 | 2 | 4 | 8 | 9 | 16 | **Maximum RF power:** 0.25 W; **RF connector:** SMA; **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 TC1-6+ Transformer: [Mini-Circuits TC1-6+][3] Buy TC2-1T+ Transformer: [Mini-Circuits TC2-1T+][4] Buy TC4-1T+ Transformer: [Mini-Circuits TC4-1T+][5] Buy TC8-1+ Transformer: [Mini-Circuits TC8-1+][6] Buy TC9-1+ Transformer: [Mini-Circuits TC9-1+][7] Buy TC16-161T+ Transformer: [Mini-Circuits TC16-161T+][8] [Order PCB manufacturing using PCBWay service][9] ## 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=TC1-6%2B [4]: https://www.minicircuits.com/WebStore/dashboard.html?model=TC2-1T%2B [5]: https://www.minicircuits.com/WebStore/dashboard.html?model=TC4-1T%2B [6]: https://www.minicircuits.com/WebStore/dashboard.html?model=TC8-1%2B [7]: https://www.minicircuits.com/WebStore/dashboard.html?model=TC9-1%2B [8]: https://www.minicircuits.com/WebStore/dashboard.html?model=TC16-161T%2B [9]: https://www.pcbway.com/QuickOrderOnline.aspx