Microwave networks are harder to analyze than their lower-frequency counterparts. The reason is that the size of a typical microwave circuit is comparable the wavelength, so phase variation along a portion of the circuit cannot be ignored as is the case at lower frequencies.
The purpose of this application note is to describe the operation and potential pitfalls of a 10V resolution (VREF = 100mV) 4 1/2 digit autoranging scheme using the ICL7103A/ICL8052A pair. Two auto-ranging circuits are included within the text.
The B&K Precision model 1747 is a general purpose dual range DC power source. This power supply has two ranges and can output higher voltage at a lower current range or higher current at a lower voltage range