Provided is a waveform display device that can easily designate an analysis target range just by selecting a location to be analyzed with regard to a tool trajectory. This waveform display device comprises: a positional information acquisition unit that acquires, from a control device that controls a machine tool, motor positional information for a drive shaft of the machine tool during workpiece machining; a shaft information setting unit that sets shaft information indicating the shaft configuration of the drive shaft of the machine tool; a tool trajectory display unit that calculates the trajectory of a tool tip point during workpiece machining by a tool mounted on the machine tool on the basis of the motor positional information and the shaft information and displays the trajectory as a waveform; an analysis target setting unit that sets an analysis target position relating to the trajectory of the tool tip point; an analysis target range generation unit that generates and displays an analysis target range containing a solid body including the set analysis target position; and a measurement point sorting unit that sorts out and displays a measurement point included in the analysis target range generated by the analysis target range generation unit from within the trajectory of the tool tip point.

A test and/or measurement device with noise figure functionality is provided, comprising a port for connecting the test and/or measurement device to a device under test, DUT, wherein a radio frequency, RF, signal is receivable and/or received from the DUT at said port, a measurement unit connected to said port, and configured to receive the RF signal from the port, to demodulate the RF signal into an in-phase-, I-, component and a quadrature-, Q-, component, and to digitize said I-component and said Q-component, a processing unit connected to said measurement unit, and configured to receive the correspondingly digitized I-component and the correspondingly digitized Q-component from the measurement unit, and to calculate phase noise based on the digitized I-component and the digitized Q-component, a display unit connected to said processing unit, and an input unit connected to said processing unit. The processing unit is configured to display the correspondingly calculated phase noise as a phase noise graph on the display unit. Furthermore, the processing unit is configured to receive an input information from the input unit, to display a marker element on the display unit based on the correspondingly received input information, and to calculate, especially to calculate and display, a respective noise figure of the DUT based on a corresponding actual position of the marker element on the display unit.