Digital I-Q Data Capture and Correction

The RSA3408A Opt. 05 provides real-time digital I and Q outputs on the RSA3408A. Data of bandwidths up to 36 MHz span may be collected continuously at these ports. This white paper explains the theory of operation of the internal acquisition memory and data correction methods of the RSA3408A, and offers a method by which these corrections may be applied to data captured using an external PC.