The combination of Model 8410B Network Analyzer Model 8411A Frequency Converter and a Display unit for the Model 8410B functions as a phasemeter and a ratiometer for direct, continuous, simultaneous phase and magnitude ratio measurement of RF voltages, The complete network Analyzer measures phase angles from 0 to 360° and magnitude ratios in decibels over a dynamic range of 60 dB. These measurements can be made on single frequencies and on swept frequencies in overlapping octave bands from 110 MHz to 12,4 GHz (110 MHz to 18 GHz for Option 018),