Just out of curiosity: the tone appearing is me connecting my CE-certified Dell computer to a CE-certified Asus router, using a standard cat5-e cable. https://

Just out of curiosity: the tone appearing is me connecting my CE-certified Dell computer to a CE-certified Asus router, using a standard cat5-e cable. https://ibb.co/0rxKq6L https://ibb.co/0rxKq6L (CubicSDR ran on the same DELL machine, however both tones disappeared after disconnecting the antenna from the SDR)