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Finally, the FIR waveforms can be viewed and configured by clicking on the Bunch by Bunch FIR Waveform Control buttons.
Not related to software, but it is nice these filters can be externally verified with a VNA. Measure S-parameter from ADC to DAC:
1) transverse filter: sweep shows exactly one revolution bandwidth, bright yellow FIR 2/8, dark yellow FIR 1/8, blue straight trough.
2) transverse filter FIR 2/8, now with wider sweep, showing repetition every revolution harmonic.
3) longitudinal filter FIR 2/8 with decimation 10. Same sweep as above, filter passbands move closer together around revolution harmonics.