This may not be a new idea. I was looking at live police scanners online and found that N2JEU has an HF receiver setup you can access online, with streaming audio back to your computer. He has a control setup in which you can enter the freq and mode into an IC-R75, and receive whatever HF signals thru your computer speakers. For fun, I tuned it on Midcars around noon. Sounded good so I turned on my HF and noted there was a long delay in the streaming computer audio and the live rx. Got an idea to check into Midcars and use it to check my own audio from a distant point, without having to make a signal report request or anything. So I did it, and was able to listen to myself between Ohio and the Icom rx in NY state. Checked signal strength and audio. The delay online is quite long enough to eliminate any confusing echo effects and was quite useful. His website is at www.ralabs.com/webradio/
and he requests you keep your usage to 15 min max at a time. Can be useful for US hams to ck sigs, especially eastern half.