Shocking Results from Changing Counterpoise Lengths!

📡 Does Counterpoise Length REALLY Matter for EFHW Antennas? Let's find out in this deep dive into End-Fed Half-Wave antenna (EFHW) and coax length performance! In this video, we explore the effect of counterpoise length when using EFHW antennas in amateur radio (ham radio) setups. Whether you're a portable operator, a QRP enthusiast, or setting up your first HF station, understanding how counterpoise length interacts with your EFHW antenna and whether it makes a difference in SWR, radiation efficiency, and signal strength. EFHW antennas are great for HF portable operation, POTA, SOTA, and field day setups. 🔧 This information is perfect for: o HF ham radio beginners o QRP operators o POTA/SOTA/WWFF activators o Anyone troubleshooting EFHW performance issues Mini COAX - Is it holding you back?    • Mini COAX - Is It Limiting Your Portable R...   My various antenna videos playlist:    • Antennas For The Field   My RG-316 source (no affiliation) o https://www.cablesonline.com/ o https://www.cablesonline.com/uhfplmat... (RG-316 w/ PL-259's) Chapters: 00:00 Opening 00:26 Title 00:38 Introduction 02:35 Test Setup 03:11 Observations 05:57 Conclusions Comment on your EFHW experience below! 73 and thanks for watching. -- Mark AA3K #EFHW #counterpoise #hamradioantenna #EndFedHalfWave