The problem: UHF Satcom reception always was very well with Winradio RX. UHF antenna and preamp gave good results. Reception was towards 15W, partly 60 east.I have now moved to a high-rise building on the top floor with a clear view of the east and partly South. Same configuration as before facing east. and now? 0 reception. I can turn the antenna but always bad reception. A bit of 250.55 can be seen. Now, as a test, instead of the PC, I connected a tablet with Airspy to the same configuration and i have a great reception. Tried Airspy on the PC. Zero reception. Only works with a tablet. Does anyone have an answer to this strange behavior?