Test for FFT export in JSON format via Spectrum Lab's HTTP server
  Refresh Interval: sec

Click 'Start' to begin periodic update. The server response can be displayed as text, and as a graph further below.

Show Response as text :

Note: The FFT-export in a JSON-compatible format only works if this page is served by Spectrum Lab's integrated HTTP server !
Details in the comments of the Javascript functions on this page; select 'View Source' in your web browser.

Show Spectrum (plotted with Cango, may be too slow for long FFTs) :


Spectrum plotter using Cango
Spectrum plotter using JSXGraph
Main page with spectrum display
Waterfall controls
More info about SL's HTTP server
README for developers, with an overview of the sample server pages"

DL4YHF 2013-06-04