You will start this tutorial lesson by testing the S-[[parameters]] of BFG193. Open the Parts Bin of the Toolbox and search for BFG193. You can search alphabetically or by function under Active > Transistor > NPN > RF. Place an instance of this BJT on the schematic and place two Net Markers (keyboard shortcut: Alt+N) to designate the base and collector of the BJT as the input and output of your circuit as shown in the opposite figure. Ground the emitter of the BJT.
{{Note|The symbols of the standards BJT and its RF counterpart with an S-parameter model are slightly different.}}
<table>
Run a Network Analysis Test of your simple two-port RF circuit. Set the start and stop frequencies of the sweep to 500MHz and 1500MHz, respectively, with a linear frequency step size of 10MHz. Choose "S" [[parameters]] on a Cartesian graph with both amplitude and phase and a dB scale. The figure below shows the S-parameter results with magnitudes in dB and phases in degrees. Use the tracking crosshairs of the graph window to read the value of |s21| at 1GHz. The reading at the bottom of the screen shows a value of 12.442dB, which corresponds to 4.187 as you can see from the highlighted row in the S-parameter table of the BJT's property dialog.
{{Note|The symbols of the standards BJT and its RF counterpart with an S-parameter model are slightly different.}}
<table>