[USRP-users] TwinRX Gain

Eugene Grayver eugene.grayver at aero.org
Thu Jul 13 19:57:31 EDT 2017


I am trying to understand the 'actual' gain in TwinRX.  Experimentally, I see that a 0 dBm input requires gain of +46 dB to give a full-scale (-1/1) output.  Interestingly, the two channels have about 3 dB of difference in gain (I would have expected a lot less).  Since the A/D expects about 0 dBm (based on the datasheet), it appears we only have 50 dB of actual gain available.  Is that correct?  What does the 95 dB of gain mean?


Eugene Grayver, Ph.D.
Aerospace Corp., Sr. Eng. Spec.
Tel: 310.336.1274

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