We're proud to announce the release of Version 1.3.1 of our XTDR software for Windows. This is a free update that applies to all current users of any version of XTDR software.New in this version is the inclusion of a Set Zero Reference feature. This feature simplifies the testing process by allowing the user to exclude the TDR instrument and any adapters or fixtures from the horizontal calculation of time or distance.Another important change applies to vertical scaling in voltage. XTDR now displays the waveform baseline as 0 mV when in voltage mode. In previous versions, the baseline was set to -250 mV for positive going channels, and +250 mV for negative going channels.This change does not impact vertical scaling in Normalized, Impedance, or Rho modes.Version 1.3.1 also includes a few improvements and bugfixes, such as improved accuracy of the cursor-based zoom feature and a more intuitive edge calculation in TDT mode.Version 1.3.1 can be can be downloaded immediately. from our XTDR page.