Hello,
I'm currently working with an ADC for SDR applications and conducting a blocker test.
Blocking is a measure of the receiver's capability to receive a modulated desired input signal amidst the presence of an unwanted unmodulated input signal, without this unwanted signal causing degradation of the receiver's performance beyond a specified limit.
The issue arises when I apply a blocker signal at a power level of 8.64 dBm; the noise floor of the ADC increases by 13 dB. How can I determine the noise generated by the E4438C signal generator? I aim to discern whether the 13 dB increase in the noise floor is attributable to the signal generator or the imperfections in the ADC quantization process.