Keysight Technologies 54754A

The Keysight 54754A provides two 18-GHz channels that have built-in TDR step generators. The two channels may work in tandem to provide differential or common mode TDR stimulus/response, or may be used independently. Either channel works as a normal oscilloscope vertical system when the TDR/TDT step generators are not operating.


Accurate probing of high-speed differential circuits can be a challenge. It is important to use a differential TDR probe with the correct bandwidth, pitch, signal configuration, etc. to match your design.

• N1020A 6 GHz Single-ended TDR Probe & Positioner Kit
• N1021B 18 GHz Differential TDR/TDT Probe Kit
• N1024B TDR Calibration Kit

All 86100A/B/Cs and the 86100D in the ETR configuration have a internal trigger connections between modules and the mainframe. 86100Ds with option STR do not and therefore require an external cable (such as P/N 5062-6690) from the TDR module’s trigger output to the mainframe’s trigger input. Use a power splitter (such as P/N 11667B) or divider (such as P/N 11636B) when using two TDR modules in an 86100D mainframe with option STR.