Build an RF Stepped Attenuator with Integrated Dummy Antenna and Arduino Control! #pcbway#

Only $5 for 10 PCBs and every new member get $5 bonus. + Express 24 hour / 48 hour service on https://www.pcbway.com/ ➠ ➠ ➠ In this video, I showcase my custom-designed 50Ω digitally controlled stepped attenuator, perfect for RF radio work. With 3dB steps up to 93dB of attenuation, this precision tool uses a combination of pi attenuator resistors, relays, an Arduino Nano, a rotary encoder, and a vibrant OLED display. It also features an integrated IEC dummy antenna circuit, ideal for simulating antenna signals during RF alignments. Key features include: • Stepped Attenuation: Achieve precise attenuation from 0dB to 93dB in 3dB steps. • User-Friendly Controls: Simple rotary encoder interface with an OLED display for real-time feedback. • 50Ω Impedance Matching: Ensures accurate RF performance. • Dummy Antenna Circuit: Switchable for RF alignment tasks. I’ve provided everything you need to build your own, including: ✅ Gerber files ✅ Schematic ✅ Bill of Materials (BOM) ✅ 3D print files for a custom enclosure ✅ Arduino Sketch Code Want to build it? Order the two PCBs directly from PCBWay using the links below. Plus, I’ll be offering pre-programmed Arduino Nano modules at cost for those interested. 🎥 Watch now and bring this project to life! 🔗 Google Drive Folder: https://drive.google.com/drive/folder... 🔗PCBWay Shared Relay Board: https://www.pcbway.com/project/sharep... 🔗PCBWay Shared Control Board: https://www.pcbway.com/project/sharep... 🎥 Other videos mentioned in this video: ■ Arduino Meets Tube Radios: Building a Switched Pi Attenuator (0-93dB) For Alignments -    • Arduino Meets Tube Radios: Building a Swit...   ■ Switchable Pi Attenuator with Dummy Antenna -    • Switchable Pi Attenuator with Dummy Antenn...   Like, share, and subscribe for more RF and electronics projects! 🙏 Want to support the channel? ●●●●●●   / mcaldeira   https://paypal.me/macaldeira #RFProjects #ArduinoDIY #electronicstutorial ●●●● HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM ●●●● ✿ DIY TEST GEAR: The title says it all:    • Zener Diode Tester - Part 1. The build.   ✿ RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:    • How to safely check the Power Transformer ...   ✿ HowTo's: Various videos on some simple techniques and projects:    • Extend tube radio FM band above 100MHz wit...   ✿ DIY CAPACITOR LEAKAGE TESTER PROJECT: One of the most viewed projects on my channel, with full design description and build instructions.    • Capacitor leakage tester design & build DI...   ✿ DIY TUBE TESTER PROJECT: Complete design description and build instructions for this really handy device.    • DIY Tube Tester. Working on Power Supply o...   ●●●● Plus full Playlists on some other completed restoration projects on this Channel ●●●● 📻 PHILIPS BX750A:    • Philips BX750A tube radio restoration - Pa...   📻 TELEFUNKEN OPUS 2114:    • Telefunken Opus 2114 stereo tube radio res...   📻 SABA UW-175-Z 3D:    • Saba UW 175-Z 3D tube radio restoration - ...   📻 GRUNDIG 1070:    • Grundig 1070 tube radio restoration - Part...   📻 SCHAUB-LORENZ GOLDY 58 type 3020:    • Schaub-Lorenz Goldy 58 type 3020 tube radi...   📻 BUSH VHF64:    • Bush VHF64 tube radio restoration - Part 1...   📻 GRUNDIG 3060A:    • Grundig 3060a tube radio restoration - Par...   📻 TELEFUNKEN OPERETTE 8:    • Telefunken Operette 8 tube radio restorati...   📻 GRAETZ SUPER 171W:    • Graetz Super 171W tube radio restoration -...   📻 LOEWE-OPTA MAGNET 3737W:    • Loewe-Opta Magnet 3737W tube radio restora...   📻 BRAUN ATELIER 3:    • Braun Atelier 3   📻 LOEWE-OPTA TRUXA STEREO 4741W:    • Loewe-Opta Truxa Stereo 4741W   📻 GRAETZ COMEDIA 616:    • Graetz Comedia 616 tube radio restoration ...   📻 SABA FREIBURG W2:    • Saba Freiburg W2 (WII) restoration   📻 GRAETZ MUSICA 4R417:    • Graetz Musica 4R417 restoration