liberal
Advanced Member level 4
receiver snr
I have a receiver,whose signal flow is --LNA-----RF-----IF----AGC----
I measure the SNR at RF port ,it is 10dB,then the SNR at AGC output it is 5dB.why depreciated by 5dB,it should be equal,is't???
could the AGC depreciate the SNR??
I have a receiver,whose signal flow is --LNA-----RF-----IF----AGC----
I measure the SNR at RF port ,it is 10dB,then the SNR at AGC output it is 5dB.why depreciated by 5dB,it should be equal,is't???
could the AGC depreciate the SNR??