Waterfall saving tool

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Posts: 30
Joined: Sat Mar 12, 2016 11:19 am

Waterfall saving tool

Postby DVE » Sat Sep 09, 2017 4:05 pm

Hi all,

I finished a first version of the python application, that saving a waterfall in the file, so its easy to check whats going on the band.

Command line:
python3 wf2img.py --sdr=sdrplay --imagewidth=2048 --sr=8000000 --f=100000000 --average=32 --sdrgain="IFGR:40;RFGR:4"

Result: FM band

Sources and installation manual:

Feedback is welcomed.

Reason: No reason

Posts: 30
Joined: Sat Mar 12, 2016 11:19 am

Re: Waterfall saving tool

Postby DVE » Sat Oct 28, 2017 8:15 am

Hi all.

Lots of improvements in code: IQ saving, timetable/batch mode, Raspberry Pi support.
URL is the same: https://github.com/dmitryelj/SDR-Waterfall2Img

Reason: No reason

Posts: 6
Joined: Sat Nov 24, 2018 1:54 am

Re: Waterfall saving tool

Postby BackgroundNoise » Fri Nov 30, 2018 4:13 am


This utility looks nice. Using python provides a lot of flexibility for the user.

With SDRplay devices, like RSP2pro, you have the option of using Zero IF or Low IF modes.
The switch of modes involves setting an IF bandwidth.
Does your code allow this setting?

You have to be careful when setting the mode so it would also be useful to read back the radio's "state" to check the settings.

I had a look at your code but it wasn't obvious that you could change modes.

Last edited by BackgroundNoise on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
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