General Radio GR821
Convert the readings of a General Radio GR821A Twin-T to admission and impedance value
The input fields are the measurement frequency in MHz; the frequency scale of the conductance dial (either 1, 3, 10, or 30 MHz) used; the initial value of the capacitor; the final value of the capacitor, and the value read directly off the conductivity dial.
General Radio GR821 uses the default values from GR821A manual for the residual parameters. These can be changed by clicking Setup.