== Examining the High Frequency BJT Model ==
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: {{key|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.}}