Below you will find charts showing the live conditions around the Earth for radio propagation as well as atmospheric conditions that can affect Ham Radio usage depending on frequency. These are great tools for HF and knowing what the conditions are if you plan on trying to make contacts on a particular day/time.

Radio propagation is the behavior of radio waves as they travel, or are propagated, from one point to another in vacuum, or into various parts of the atmosphere.

One of the best tools to forecast HF (high-frequency) propagation is the online map (chart) shown below. It is a graphical representation of MUF within a 3000-kilometer range, allowing amateur radio station operators to estimate the best frequencies and paths for effective communication.

This map shows real-time radio propagation from stations operating on 11 bands between 1.8 and 54 MHz in the amateur radio service. The display shows worldwide activity from the last 15 minutes and is automatically updated about every minute.

Oct 26, 2023 · Radio frequency propagation is a fundamental concept in the field of telecommunications and wireless communication. Understanding how radio waves behave and propagate can help us design and optimize wireless systems for various applications.

Oct 30, 2023 · Delve into RF propagation's intricacies – frequencies, propagation methods, and properties shaping wireless communication's reach and reliability. Uncover the world of RF propagation, from frequency ranges to propagation mechanisms.

This page provides basic understanding of the principles of electromagnetic radiation, the structure of the Earth's atmosphere and solar-terrestrial interactions necessary for a working knowledge of radio propagation.

In this article, I will be discussing the concept of radio propagation, its definition, and how it works. We will be exploring the different factors that affect radio propagation, specifically VHF and HF propagation, and how weather can have a significant impact on signal transmission.

Radio wave propagation is used in radio communication in order to transmit signals to short or long ranges. Along with this, it also finds applications in radar, direction finding, remote machine controlling, etc.

Radio waves can propagate from transmitter to receiver in four ways: through ground waves, sky waves, free space waves, and open field waves. Ground waves exist only for vertical polarization, produced by vertical antennas, when the transmitting and receiving antennas are close to the surface of the earth.