Extremely new - need some help with rewinding the waterfall

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pyrasanth
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Joined: Tue Jul 07, 2020 12:19 pm

Extremely new - need some help with rewinding the waterfall

Post by pyrasanth » Tue Jul 07, 2020 12:25 pm

Hi,

I am very new to looking at signals in general and I need to find a way of looking at a very short burst from a LoRa node. I can see the burst in SDR# and CubicSDR but as far as I can see only SDR# has a record function (out of the two).

I might be completely wrong here but do I need software that will record and allow me to rewind the recording so I can get it to a point where I can analyse it? For instance I see it on the waterfall and don't seem to be able to move back/up/though the 'history' to see the shape of my signal. Am I being thick? Is there some other way to do this?

Again extremely new but quite keen to know more. I have watched some tutorials but can't seem to find anything on this.

Thanks.

alanzfq
Posts: 134
Joined: Thu Oct 04, 2018 11:18 am

Re: Extremely new - need some help with rewinding the waterfall

Post by alanzfq » Wed Jul 08, 2020 9:21 am

The only software I know that will scroll back is Spectrum Laboratory.
It is difficult to setup, if you do not know it then as far as I know recording is the easiest.
Most software does enable recording, the only one I am familiar with is HDSDR.
Alan

rtlsdrblog
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Posts: 2706
Joined: Mon Nov 19, 2012 11:54 pm

Re: Extremely new - need some help with rewinding the waterfall

Post by rtlsdrblog » Thu Jul 16, 2020 4:46 am

You could record an IQ file ofthe signal, then replay it using the file player plugin from rtl-sdr.ru

http://rtl-sdr.ru/page/vse-dostupnye-na ... -opisaniem

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