ARRL’s Here to There: Radio Wave Propagation discusses the principles of radio wave propagation and the role the ionosphere plays in the propagation of your transmitted signal. The author unravels the mysteries of the ionosphere and details which of the Amateur Radio bands interact with the ionosphere in an easy-to-understand format, allowing you to make the most of your time on the air.

Amateur radio communication depends upon the movement of radio waves, and hams spend a lot of time designing a station that will send those waves in a desired direction. As soon as your transmission leaves your antenna it is subject to the often-misunderstood effects of propagation.

Here to There: How Radio Waves Propagate provides practical advice on understanding what’s going on in the ionosphere and troposphere, how takeoff angle impacts your transmission, and how far you can really communicate over VHF and UHF. You’ll learn about cutting-edge ionospheric science and how hams are informing contemporary research. Understanding conditions and how to predict them will improve your operating methods, whether you’re interested in making contacts from a park bench, or driving the legal limit to reach a new DX entity.

Featuring Notable Authors from the HamSCI Community:

• Carl Luetzelschwab, K9LA

• Frank Donovan, W3LPL

• Ward Silver, NØAX

• Ethan Miller, K8GU

• Hermann Schumacher, DF2DR

• Nathaniel Frissell, W2NAF

• Fundamentals of Radio Wave Propagation - A breakdown of the science underpinning your communications.

• The Sun and Solar Activity - Understand how the Sun interacts with the ionosphere and what that means for your transmissions.

• Sky-Wave, or Ionospheric, Propagation - How radio waves, primarily at HF and below, travel through the ionosphere.

• VHF and UHF Non-ionospheric Propagation - Ways in which VHF, UHF, and microwave propagation defies line-of-sight limits.

• Propagation Predictions for HF Operation - Programs and tools available to assess and plan for propagation in the HF spectrum.

• VHF and UHF Mobile Propagation - Whether in a car or at your home station, learn about the terrain and atmospheric effects impacting your transmissions.

• Amateur Radio and Ionospheric Science Ionospheric science uses ham radio observations and data sets. Learn about Traveling Ionospheric Disturbances, eclipses, and other unusual phenomena, and how you can participate in citizen science!