The signal at tp40 cannot be observed due to excessive electrical noise is an audio signal with a positive DC offset and higt frequency electrical noise contains a positive DC offset an audio signal and a hight frequency ripple is a pure sinewave
The signal at tp40cannot be observed due to excessive electrical noiseis an audio signal with a positive DC offset and higt frequency electrical noisecontains a positive DC offset an audio signal and a hight frequency rippleis a pure sinewave