The Ionosphere Part 2

The ionosphere makes up less than 1% of the mass of Earth’s atmosphere above 100km. It’s the part of our atmosphere that affects the passage of radio waves. But how? Ionised Oxygen atoms are the key to radio propagation and good DX. EUV and activity from our sun affect the MUF and LUF.

The inspiration for this video came from "Ionospheric Radio" by Kenneth Davies, an up-to-date survey of the theory and practice of radio wave propagation involving transmission through and reflection from the ionosphere. Kenneth Davies is a senior research scientist at the Space Environment Laboratory in Colorado.
https://www.google.com.au/books/editi...

Find out more about this video at https://bit.ly/4c9FZ21
View "The Ionosphere" part one at https://bit.ly/4eogH2s

00:18 | Where is the Ionosphere?
01:02 | What is Ionisation?
01:24 | 02 is a molecule made of 2 oxygen atoms covalently bonded together
02:13 | Oxygen atom behaviour when exposed to Extreme Ultraviolet radiation
03:17 | What do free electrons mean for amateur radio?
02:36 | Lifetime of free electrons
03:47 | Example of band conditions on 14MHz with Peter VK3YE portable
04:32 | Bands where the ionosphere has the most effect
04:55 | Characteristics of ionospheric propagation and example
05:20 | 10m propagation example and conclusion
05:39 | What type of radiation affects what region in the ionosphere
05:55 | The mathematical theory behind radio propagation
06:18 | The F2 layer
06:50 | The radio spectrum and 8 bands interact with the ionosphere
08:56 | QRP on 14 MHz with Peter VK3YE portable
09:26 | The 2 sources of ionising radiation - short and long term
10:11 | 3 atmospheric parameters
10:32 | MUF and LUF - The critical atmospheric parameters
11:04 | The usage frequency window for propagation
10:25 | Ionospheric Irregularities