How Radio & Antennas Work

[CharlesHarris]

Links with useful information on Near Vertical Incidence Skywave antennas, which are commonly used here for emergency response and disaster work:

http://www.w0ipl.net/ECom/NVIS/nvis.htm
http://www.w5jck.com/nvis/W5JCK-NVIS-Ant...tation.pdf
https://www.txarmymars.org/downloads/NVI...Design.pdf

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As far as the OPSEC issue, with what we know now, it is apparent that any illusion of privacy at all in our modern world is fantasy. If you have a mobile phone, use a credit card, have a computer connected to the Internet, used social media, etc., Big Brother already has your number. I laugh at the tinfoil hat crowd when I see the look on their face that the data miners know every box of ammunition or package of targets or reloading components they have ever bought with a credit card, or if they have ever had car, a hunting license, etc.

Unless you have lived in a cave and never used credit since 1970, you have no privacy. Life isn't fair.