If you take a USB-1 cable and install a DB-9 connector instead of the connector that Uniden uses for the radio, don't you just have a USB to Serial converter? What's special about it?
Pretty much but this requires no additional items, soldering or programming. You could certainly rewire a USB-1 cable, which is what I was thinking about doing before I splurged on these. (I stink at soldering small items...)
One could rewire a USB-Serial adapter if they choose, this saves them the work. I don't know if you would need any special drivers, the cable I mentioned uses the regular USB-1 driver.