(sorry for my English)
I'm using the HDMI to VGA adapter on my pc, and receiving weather satellites on ~137 MHz with RTL-SDR V3. There was a problem: my VGA adapter creates a powerful signal, who pollutes the 137 MHz band, with carrier wave on 138.5 MHz. This signal receivable anywhere in the house. I tried to use VGA cable with ferrites and shielding, and shielded the VGA adapter with aluminum foil, but it did not give any result. If I connect SDR to another device, I still can receive this signal. The signal disappears when I unplugging VGA adapter or turning off pc. With VGA graphics card (respectively without VGA adapter), there was not any interference. What should I do to mitigate this interference?