Live Antenna Build: CaHRtenna Apollo @CoffeeandHamRadios

Uploaded February 2026 | Updated September 2026, 3 weeks ago

Join in the fun as we build an HF End Fed Halfwave LIVE!

👉👉 Join The Ham Radio Project Discord: discord.gg/bgpwE5WF9p 👈👈

Coffee and Ham Radios is
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🦍 TheSmokinApe: youtube.com/c/TheSmokinApe
🔥 KK6USY Ham Radio Adventures: youtube.com/c/KK6USYHamRadioAdventures

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$Tropospheric Propagation in Ham Radio! Tropospheric propagation is a weather-driven phenomenon where temperature inversions and humidity gradients in the lower atmosphere refract VHF, UHF, and microwave signals, allowing them to travel hundreds or thousands of miles beyond the horizon. -Mechanisms: Signals are often trapped in surface, elevated, or evaporation ducts that act like a waveguide. -Best Practices: Long-distance work typically requires horizontal polarization to reduce noise and match atmospheric geometry, along with high-gain Yagi antennas. -Monitoring: Success depends on tracking Hepburn maps, real-time APRS propagation maps, and stable high-pressure weather systems. -Scientific Debate: While the duct model is traditional, some researchers propose chordal scattering—scattering from turbulent air pockets along weather fronts—as a more plausible explanation for extreme distances. 👉👉 Join The Ham Radio Project Discord: https://discord.gg/bgpwE5WF9p 👈👈 Coffee and Ham Radios is 🦍 TheSmokinApe: https://www.youtube.com/c/TheSmokinApe 🔥 KK6USY Ham Radio Adventures: https://www.youtube.com/c/KK6USYHamRadioAdventures$

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Coffee and Ham Radios |

Live Antenna Build: CaHRtenna Apollo