A limit bar on the right edge of the trace area shows where the limits are set relative to full scale for the input range. This bar does not change with trace magnification , so if you want to compare to the incoming waveform in order to help decide where to set the limits, you should set the trace magnification for full scale . Artifact rejection works on the incoming waveform data, even if you are doing spectral averaging. The limit bar will thus not be directly comparable to the spectrum display. The artifact limits are separate for waveform and spectrum averaging, allowing you to keep setups ready for two different acquisition scenarios.
Artifact rejection is always in effect when averaging.
If you don't want this, simply set the limits to full scale. Since nothing will ever be above these limits, no sweeps will be rejected. You can easily set full scale values by entering much larger numbers like '1k' and '-1k', and Daqarta will set only the maximums appropriate for the effective range. If you don't actually have anything connected to the remote input, if you have something else hooked there, or if you just don't want to use remote control, this option must be set Off to disable the input. For tips on construction and wiring of a manual switch, see Remote Control Switch Construction .