Thanks, Cobra. I was afraid of that. I'm looking for an inexpensive dual frequency ADS-B receiver--something like the Ping USB dongle that I bought from AP a few years ago. That, plus a $10 GPS dongle, both plugged into my (cute little red plastic) Dell tablet/laptop gets it ADS-B traffic and weather wherever it goes--usually, on my desk. It works in the airplane, too, but the display is too dim for daytime flying.