Measure the amplitude of each succeeding packet and compare the amplitude against the reference measurements. If he tells the truth, then all amplitudes are the same. You know he's a salesman, so you just want to check his statement. In the test situation described above, with 4.2 MHz as your fastest frequency packet. Then look at your switcher and even if it's the best California can offer, it's probably at 125 IRE at only 8 MHz.
Frequency response is detail resolution, the better the response, the better the detail.
Equalization Another application of the chart from last month is to assist in specifying Distribution Amplifiers. Consider the case where a cable was run from the Studio to the Boss' Office. Get out your ole trusty Multiburst generator and check to see it's working. Connect the Multiburst to the cable in the Studio and drag the Waveform Monitor down to the office. Measure the overall amplitude of the signal against the calibrated settings you made in the studio.