Search This Blog

DXER Ham Radio DX News

The latest dx news/current propagation and more. Visit mike's Amateur Radio Page at

Saturday, July 29, 2017

Did you know? Here’s a space weather and radio...

Did you know? Here’s a space weather and radio propagation educational tidbit – from – at 14:00 UTC on 2017-07-29:

The ionosphere’s D-region lies between abt 50 and 90 km, and is ‘strongest’ during daytime. The ionosphere’s D-region is ionized by high-energy cosmic rays and with hard x-rays.

Cosmic rays occasionally follow strong solar proton flares, ionizing the D-region. Hard x-rays are also known as Lyman Alpha radiation; this ionizes the D-region.

              • +

BOOK SALE: Space Weather and Sun Science - get these from Amazon, and help us stay online!

NOTICE: When you buy this (or any item after starting with this link), you are helping us keep our and other resources “on the air” (up and running!). In other words, you are helping the entire community. So, check out this book:

Here is the link to Amazon:

              • +

Don’t forget: You can also get the space weather and radio propagation self-study course, today. Visit for the latest sale and for more information!

              • +

Visit our live space weather and radio propagation web site, at:

See the live aurora mapping is at

If you are on Twitter, please follow these two users:

from Ham Radio Times

No comments:

Post a Comment