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I found a little black box with no markings on it at all. I opened it to see what I could see. It's there any way that I could use this for software succumbed radio? I plug it into my USB port and it just says that it's a serial adaptor. I've looked up the chip on it and read the manual, but am not sure how to get it to do anything. Any pointers?

Also, because of where I find this box, I am certain that at least one government agency is breaking FCC law.