# TJ (1E-XX)

TJ (p-p), Total Jitter, is the peak-to-peak value of the total jitter calculated at a specific symbol error rate (SER) or probability. The (SER) or (probability) label displayed in the Jitter results window identifies the specified SER or probability for which the TJ value was calculated. This TJ (p-p) value is calculated as an estimate of the true total jitter, as defined by the dual-Dirac jitter model.