I recently found I could hook my mini radio up to my computer and decode digital signals. Here is a link: https://youtube.com/shorts/4pyzAqtKzhI
In preparedness you must be ready to listen more than talk so you don't give your position away. Using a simple receive ONLY radio will minimize the risk of accidentally transmitting a signal. I left this setup running overnight to decode WSPR signals to test the effectiveness. Worked great. For receiving messages using JS8 or FLDIGI this method would work also. Enjoy if you want. 72!!!