https://packratvhf.com/attachments/article/1200/Getting%20Started%20in%20Microwaves.pdf
https://packratvhf.com/attachments/article/1205/DigitalOnTheMIcrowaves%20-%20W3SZ.pdf
http://www.wa1mba.org/micros.htm
https://www.microwaves101.com/
https://ntms.org/whymicrowave.php
https://wiki.microwavers.org.uk/Digital_modes_using_WSJT
https://microwavers.org/files/Microwaves.pdf