This is just a test for Spectrum Lab's built in HTTP server.
To see it in action, do not load it as a
file with your browser ! Instead, enable the server inside
SpecLab, then enter the IP address of the machine on which SL is running.
Example (here using the IP address where SL is running, this one only
works via LAN, not WWW): - http://192.168.0.22/
If you have no local network, but want to test the server locally,
use IP address 127.0.0.1 which always 'loops back' to the local machine.
Both server ('host') and client (your web browser) can run on the same PC then.
If the above link doesn't work even though SpecLab is running, the most likely reason is
that SL's built-in web server is disabled (which it is, by default, for security)
or because windows or the windows firewall has blocked it.
At the time of this writing, the HTTP server in SpecLab allows you to...
- show the current spectrogram, sent to your browser as .jpg or .bmp file,
- show the waterfall colour palette, also as jpg or bmp,
- display the colour legend for the Radio Direction Finder,
- retrieve FFT data from the spectum display buffer (example: fft_expt.html)
- call any interpreter function inside SL to show the display in your browser,
- execute any interpreter command inside SL (see manual on "interpreter commands").
Further reading: