Uploaded March 2025 | Updated September 2026, 3 weeks ago

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In this video I'll show you a simple method to figure out exactly how far your HT will transmit a signal.

Resources from the video:
Ham Radio Rookie's calculations youtube.com/watch?v=Q5eKk_7ZkUQ
Radio Mobile Online ve2dbe.com/rmonline_s.asp
Mini-Circuits dBm to Watts to Volts conversion chart minicircuits.com/app/AN40-012.pdf
Signal to Noise Ratio en.wikipedia.org/wiki/Signal-to-noise_ratio
Fresnel Zone defined en.wikipedia.org/wiki/Fresnel_zone
How Far Away is the Horizon? livescience.com/32111-how-far-away-is-the-horizon.html

Download the chart shown on my desktop from the front of my website, ve6lk.com and look under "Ham Smarter with VE6LK Tools" for the link to my public dropbox.
Original credit for the chart to @MrCircuitMatt HB9FXV

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