Shortwave Radios

Shortwave Listening Global Station List
https://livingprepared.blogspot.com/2014/11/shortwave-listening-global-station-list.html

(SNIP) ... In times of large country wide disasters getting the real news is paramount to understanding what is actually going on around you. A government or terrorist act could shut down the internet, cell phones and local TV and Broadcast news. Your only link to the outside world is going to be a Shortwave Radio. This can be a low cost simple everyday portable house radio that has 'digital' shortwave band tuning/reception or a Shortwave HF Transceiver that also allows not only listening but the ability to speak to others on a chosen frequency. ---CONTINUED---

I am glad you posted this. At the rate things are going,
SW may be our most reliable source of information,
some day.

The Best Shortwave Radios in 2020 – Complete Guide
https://www.techsounded.com/best-shortwave-radios/

  Includes:

What Is a Shortwave Radio?
Types of Shortwave Radios
The Uses of Shortwave Radios
Features of the Best Shortwave Radios
TOP 10 BEST  ...

General Shortwave Radio 101
http://blackthorn-usa.com/wp-content/uploads/2017/01/General-Shortwave-Radio-101.pdf

Now that you own a shortwave radio, no doubt you’ll want to hear international broadcasts right away. If you’re new to shortwave, please take some time to learn the basics outlined in this guide. To successfully listen to shortwave stations, you must understand the concept of shortwave bands.   ---CONTINUED---

General Shortwave Radio Handbook
http://blackthorn-usa.com/wp-content/uploads/2017/01/General-Shortwave-Radio-Handbook.pdf

(195 page PDF)  (Revised April 1997)

Includes:
1. How Radio Waves Travel
2. Aerials
3. Transceivers and Power Supplies
4. How to Plan your Radio Network
5. Costs and Choices
6. How to Install a Radio System
7. How to Operate a Radio Network
8. How to Maintain a Radio Network
9. Additional Facilities
10. Packet Radio
11. Disaster and Relief Communications