Spectrum analyzer

Instruments PC Oscilloscopes and Recorders
1

Hi,
I’d like to know if there is a way to have a spectrum analyzer for repetitive signals over regular 25Mhz (like 1Gs scope mode).
I regularly have to check signals between 35 and 41Mhz. I don’t need accuracy in amplitude.

Many thanks,
Andrea - Italy

2

Sorry but there is no easy way to do that.

You may bluff the scope and copy the data of interest at 1GS/s saved file to lower sample rate file that is visible in spectrum analyzer:

  • Save the data of interest at 1GS/s to file using “Save DSO Data” option.
  • Save any data to another file on lower sample rate (e.g. 1ms/div).
  • Copy and paste the data section of the 1GS/s file to this file. (Or copy the header section of the 1ms/div file to the 1GS/s file.)
  • Open the file containing 1ms/div header and 1GS/s data.
  • Click “Spectrum Analyzer” to see the spectrum.
3

[quote=“VEL255”]Sorry but there is no easy way to do that.

You may bluff the scope and copy the data of interest at 1GS/s saved file to lower sample rate file that is visible in spectrum analyzer:

  • Save the data of interest at 1GS/s to file using “Save DSO Data” option.
  • Save any data to another file on lower sample rate (e.g. 1ms/div).
  • Copy and paste the data section of the 1GS/s file to this file. (Or copy the header section of the 1ms/div file to the 1GS/s file.)
  • Open the file containing 1ms/div header and 1GS/s data.
  • Click “Spectrum Analyzer” to see the spectrum.[/quote]

I’ll try to see the result.
Thanks for the trick.
anfarol