Automatic Measurement System for a Multichannel Digitally Tuned Bandpass Filter

A system is described that automatically and rapidly measures the electrical parameters for each channel in a multichannel digitally tuned bandpass filter. The performance of the filter over its entire tuning range is determined from the individual channel frequency characteristics. Channel frequency characteristics are displayed to summarize the overall performance of the filter and in such a manner as to indicate the channel tuning adjustments necessary to meet the filter specifications.