You can increase the number of applications covered with the HP 4194A Impedance/Gain-Phase Analyzer by using the HP 41941A/B Impedance Probe Kit. By combining both of these, you can increase the frequency range to 100 MHz and measure impedance parameters like |Z|, 0, R, C, L, Q, and more. The HP 4194A applications have been extended to include measurements and analysis of high frequency components such as crystal oscillators and chip inductors.