I was asked to check all the specifications of this Voltage Controlled Oscillator. I might have an idea of how to measure all the parameters except for one, the Tunning Port Capacitance. I think my problem stems from the fact that I don't really know what this parameter means for a VCO. At first, I thought it was kind of an input (or output) capacity, but this seems wrong.
What does this parameter mean for a VCO and how to measure it?