9:1 UN-UN Long Wire Transformer for HF Antennas

9:1 UN-UN Long Wire Transformer for HF Antennas: A detailed guide to the 9:1 UN-UN long wire transformer, explaining its design, connections, grounding, and HF antenna performance.

Without a 9:1 Unun, your long wire is just a piece of metal making your tuner work too hard.

Check out this guide by VU3DXR to see: ✅ How a 3:1 turns ratio = 9:1 impedance jump. ✅ Why wire length actually matters. ✅ How to build one for under $20.

Perfect for your next field day or emergency kit! 🎒

Read more: https://vu3dxr.in/91-un-un-long-wire-transformer-for-hf-antennas/