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Investigate contributed code for increasing panadapter resolution at sample rates higher than 48Khz #179

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Investigate contributed code for increasing panadapter resolution at sample 
rates higher than 48Khz. Dave, WA3OFF, has worked on some code to increase the 
number of FFT bins on the higher sampling rates so that the same amount of 
resolution can be shown regardless of the selected sample rate. 

Note this will require a lot more CPU power to run if this option is selected 
by the user.

Original issue reported on code.google.com by mccleme...@gmail.com on 21 Jul 2010 at 1:53

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
Attached is a setup.cs which includes the SpectrumGridMin, WaterfallLow 
corrections for the WA3OFF additions. Calibrate and set noise floor at 4096 and 
the display will maintain calibration while lowering the spectrum grid for the 
lower noise floor.
Changing the Spectrum buffer causes the wbir to retrain.
Adds a couple of percent to the cpu demand here.

Setup also includes an option (in Setup/Display/Spectrum Grid) to select Region 
1, 2 or 3 band edges in the display, for which a modified display.cs is also 
attached. Region 2 is the default.
My changes are prefixed // F5VNB begin.

Original comment by f5...@orange.fr on 24 Oct 2010 at 1:10

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