Remote calibrated power source system and method

A remote calibrated power source system comprising an instrument which generates a power signal, the instrument being positioned at a first location, and a remote calibrated power source module which provides a calibrated power output signal, the remote module being positioned at a second location removed from the first location, and

• wherein the remote module comprises:
• power sampling means which samples the power signal generated by the instrument and generates a voltage sample signal corresponding to the sampled power signal;
• a logarithmic amplifier which receives the voltage sample signal and converts the voltage sample signal into decibel units of measurement;
• first compensation means which generates a frequency-varying correction voltage signal;
• first summing means which receives both the correction voltage signal and the converted voltage sample signal and generates a compensated voltage sample signal in response thereto;
• and
• memory means which stores data pertinent to the operation of the system, including frequency error compensation data and logarithmic adjustment data, the logarithmic adjustment data being related to the characteristics of the logarithmic amplifier,
• and wherein the instrument comprises:
• means for generating the power signal;
• second compensation means which receives frequency compensation data from the memory means and generates a frequency-varying correction voltage signal in response thereto;
• a reference voltage generator which receives the logarithmic adjustment data from the memory means and generates a corresponding logarithmically adjusted reference voltage signal;
• second summing means which receives the frequency-varying correction voltage signal and the logarithmically adjusted reference voltage signal and generates a compensated reference voltage signal in response thereto;
• comparison means which receives the compensated reference voltage signal and the compensated voltage sample signal and generates a modulating difference voltage signal in response thereto;
• and
• modulator means which modulates the power signal in response to the modulating difference voltage signal.