RF Theory

HF propagation.

Skywave, ground wave, NVIS, greyline, and the solar activity behind it all — how your signal actually gets there. Click a card to watch on YouTube.

HF Propagation Videos

Showing 14 videos · TheSmokinApe

Day Time Ham Radio Bands and Solar Cycle 25 thumbnail

Day Time Ham Radio Bands and Solar Cycle 25

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The D-Layer and Ham Radio Propagation thumbnail

The D-Layer and Ham Radio Propagation

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Ground Wave Propagation in Ham Radio thumbnail

Ground Wave Propagation in Ham Radio

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What Every Ham NEEDS to know about Skywave PROPAGATION! thumbnail

What Every Ham NEEDS to know about Skywave PROPAGATION!

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Solar Index and Propagation Made Easy - HF Ham Radio thumbnail

Solar Index and Propagation Made Easy - HF Ham Radio

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MUF vs Critical Frequency: Unraveling Ham Radio Propagation thumbnail

MUF vs Critical Frequency: Unraveling Ham Radio Propagation

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NVIS Propagation for Ham Radio Beginners! thumbnail

NVIS Propagation for Ham Radio Beginners!

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QRP Myths BUSTED: Power Levels Explained thumbnail

QRP Myths BUSTED: Power Levels Explained

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Insights into the 30 Meter Ham Radio Band You Never Knew! thumbnail

Insights into the 30 Meter Ham Radio Band You Never Knew!

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Solar Flares Explained thumbnail

Solar Flares Explained

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What is Greyline Propagation in HAM Radio Communications? thumbnail

What is Greyline Propagation in HAM Radio Communications?

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SUNSPOTS Affecting Your HF Ham Radio Signals? thumbnail

SUNSPOTS Affecting Your HF Ham Radio Signals?

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HF Amateur Radio Works Because of This... thumbnail

HF Amateur Radio Works Because of This...

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LOW Band HF DX: How It's DONE! thumbnail

LOW Band HF DX: How It's DONE!

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