52 Week Ham Radio Challenge 2026 - Week 46: Build and measure an RF filter

Challenge for 2026-11-09 - 2026-11-15

Category: 🛠️ - Difficulty: 🟢

Build and measure an RF filter

Build an RF filter and characterize its performance. A low-pass, high-pass, band-pass, or notch filter will do. Measure its response with a NanoVNA, spectrum analyzer, tracking generator, or another suitable instrument.

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