According to this German n-tv report, Russian soldiers are using cheap Baofeng shortwave radios to communicate among each other. https://www.n-tv.de/panorama/Ukraine-Krieg-Weinende-Soldaten...

How do you actually do it? Can’t figure it out.

This site provides instructions on how to setup the basics which I find apply to most websdr software. You’ll need to find the correct freq but there a lot to listen to.

https://www.popularfront.co/listening-in-to-military-broadca...