It's not intended. It's clock and/or data-signals that leaks and has gotten amplified, if you look at it in an oscillator you will probably see a square or sawt

It's not intended. It's clock and/or data-signals that leaks and has gotten amplified, if you look at it in an oscillator you will probably see a square or sawtooth wave at around 1KHz. You might even be able to read that data...