The voltmeter, ammeter, and markers all can be used to probe voltages and currents for all simulations. You can also probe the circuit using the [[Virtual Instruments]] such as the oscilloscope, voltmeter, ammeter, wattmeter, etc. Note that virtual voltmeters and ammeters are added to the virtual instrument panel automatically every time you place a voltmeter or ammeter in your schematic. The voltage across the voltmeter, the current through each ammeter, and the voltage at each marker will show up in the various [[Virtual Instruments]] depending on their transient or frequency requirements.
== Setting the Simulation Options Parameters ==
[[RF.Spice A/D]] operates based on a large number of numerical simulation [[parameters]] with default values. In most cases, you do note have to worry about setting or changing these values. However, in certain cases, the simulation of your circuit may not converge or hit a singularity. Then you might be able to improve the simulation speed by adjusting certain [[parameters]]. You do this by accessing the '''Simulate > SPICE [[Simulation Options]]...''' menu. The [[Simulation Options]] dialog is divided up into three tabs: Convergence, Mixed-Mode, and Miscellaneous.