I have measured admittance and phase spectra of 10 MHz AT-cut quartz resonators (QCMs) using hp4195a spectrum / network analyzer equipped with hp signal divider. Analyzer was calibrated with hp 50 ohm standard resistor. I have used different source oscillator levels in dBm scale to drive the resonator. Do I have enough information to make conversion from dBm to volts afterwards? If it is possible, how can I calculate volts (peak-to-peak?, rms?) if 0 dBm and +5 dBm were used? I am a chemist and not deeply familiar with rf technology.