High-speed serial interfaces often transmit data with differential signaling. For probing on the signal, trace differential probes are used. Besides the differential inputs, these probes often provide an additional connection for ground – especially the higher bandwidth models. The ground connection
on the R&S®RT‑ZMxx modular multimode probes can be used to improve measurements on high-speed differential interfaces.
Optimize differential measurements on high-speed interfaces
![R&S_January SC app note](http://www.signalintegrityjournal.com/ext/resources/White-papers-App-notes/RS_JanSC_thumb.png?1514400608)