Data_Request : RFI Removal Software tests

[Alex P]

I would appreciate a few H Line files with RFI, etc. to test the functioning of some software I've written.

Just single FFTs in *.txt or *.csv format  .. scalings, freqs,  not relevant. 

Thanks,

Alex P

[b alex pettit jr]

Perhaps that should read

....   spectra  in *.txt or *.csv formats 

Thanks.

==================

On Tuesday, February 24, 2026 at 08:32:17 AM EST, 'Alex P' via Society of Amateur Radio Astronomers <sara...@googlegroups.com> wrote:

I would appreciate a few H Line files with RFI, etc. to test the functioning of some software I've written.

Just single FFTs in *.txt or *.csv formats  .. scalings, freqs,  not relevant.   

Thanks,

Alex P

-

[Stephen Arbogast]

Alex,  did  you  get the  file    I sent?   How are  you   removing  the rfi?

Stephen

[Alex P]

Hi Stephen,

I've  Not Rx the data . ( Can you attach a file to this thread ? )

 I've been testing adjustable sliding average windows...

  I'm not sure if this is a Generally useful solution or I've Gamed the System with Data that Works .

    I want to test more samples of Real Data and demonstrate it IS useful,  adjust the code, or just toss it.

Thanks. Alex

[Stephen Arbogast]

Here is a collection ...

[b alex pettit jr]

Stephen,

I just ran the first spectra.

If you can identify  one of specific interest, tell me the row #

Alex

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.

[Stephen Arbogast]

Frequency bin 386

[b alex pettit jr]

Which Spectra ( time /  row )  of the 520 or so ?

On Wednesday, February 25, 2026 at 01:19:30 PM EST, 'Stephen Arbogast' via Society of Amateur Radio Astronomers <sara...@googlegroups.com> wrote:

Frequency bin 386

O

.

[Stephen Arbogast]

Sorry  I meant  bin 346.

I am using an FFT size of 1024 bins. The RFI spike is in bin 346  in all samples.

Here is my command line for ezCon.py

python3   ../../../ezRABase/TCTest260107a/ezCon260107a.py -ezConInputdB 1 data/Durango260219_00b.txt \
            -ezConInputdB 1  -ezConRefMode31 11.5  -ezConAntXTFreqBinsFracL 0.37 0.66  -ezConUseVlsr 1 \
            -ezConAntXInput 6  -ezConRawFreqBinHideL 346 346 \
 -ezConAntXTVTClipL 1.3 999

Stephen

[b alex pettit jr]

This is the FFT bin 300-400 region

.

[Stephen Arbogast]

Yes , getting same  results.....  my front end  SDR is Air Spy...    

I am  working  in GNU  Radio   to  prove it can be done    ......   can  not simply switch streams as  Marcus Leech   has  pointed   out ..  I am  not   switching    streams..   I  think  Ted  Cline  has the right  idea...     I am testing  his   experimental  software...  so  far  seeing   good results .........  

Your   plot  looks like mine.................  we are on  the same page!!!