Here are some features of BasicScope that are implemented differently from other programs.

  • Mouse wheel zoom for time.  To magnify a particular part of the display,  put the cursor over the point of interest, and push the mouse wheel forward one click.  The new display will be at the next higher time/div, centered around where the cursor was.  Likewise, to zoom out, point the cursor and pull the mouse wheel back one click.  It is possible (and common) to navigate through the details of the entire captured waveform without ever clicking on or dragging anything.
  • Drag to pan waveform left and right. The OEM software does this, but the dragging of a zoomed display does not work intuitively.
  • Windows-style horizontal scroll bar for the waveform.
  • Software triggering available.  When enabled, this guarantees that the captured trace can be displayed on screen.  If triggering mechanism from the Hantek API alone is used, it was possible that the scope would trigger, but nothing would be displayed.  This is especially pronounced when trying to view the pre-trigger portion of a waveform.  Software triggering also allows triggering on both edges at once if desired, in addition to the standard rising and falling edges.
  • Consistent re-capture of waveform at the presently zoomed and panned values.  If a waveform is captured at (say) 1V/div and 1 mS/div,  then zoomed to (say) 200 mV/div and and 50 μS/div at 23  μS delay from the trigger, when the next trace is captured, it will be at 200 mV/div and 50 μS/div with 23  μS delay.  Although this seems obvious, it didn’t work right every time on the OEM software.
  • Change most settings on the running scope.  Almost every setting can be changed without the need to stop the scope.
  • Markers.  Each channel has two markers that can be enabled and dragged around on the waveform to measure voltage, time, and frequency.  These perform a function similar to the horizontal, vertical, and cross cursors on the OEM software.
  • Save waveform picture of specific size to PNG file.  While the main program window is being resized, the waveform display indicates its present dimensions (for example, 500 x 400 pixels).  A screenshot of the waveform can be saved in the popular PNG format.  This is handy if a picture of specific dimensions is needed for a web page or document.
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