You asked for comments regarding ARC Butel so here is mine, altho not what some would like to hear. Really the only major problem I have ever had with a company regarding my scanning hobby. Long story short - I bought the full pro version of ARC500 for my Whistler 1065 radio, basically for the virtual control on my computer. Let me say here that I have bought their product 7 (seven) different times for various scanners and was always satisfied. I ran into a glitch, could not get the virtual radio on my screen no matter how I tried. I contacted Butel, the guy in the Radio Reference forums and outlined my problem. He told me to do what i had already done. I did, and no go, so he said I needed to reinstall my drivers. Done. Nada. Then the guy just actually ignored me. Would not answer private messages. A very demeaning and immature response. I have went with ProScan and immediately regretted not doing so  before. So my comment on ARC/Butel is not so good. Personally I boycott their products now and always suggest ProScan. Compare them yourself. ProScan blows ARC out of the water, price-wise, performance, and the customer service is fantastic. You won't be disappointed,.