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Spectrum Analyser

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#1 EnoSat

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Posted 23 April 2023 - 10:23

Interesting plugin, it's a shame that it doesn't read data from the internal tuner, but only from the BATC websocket
Attached File  wb_spectrum1.jpeg   114.82KB   2 downloadsAttached File  wb_spectrum2.jpeg   121.24KB   2 downloadsAttached File  wb_spectrum3.jpeg   99.68KB   2 downloads
PS: next Spectrum analyser
Attached File  wb_spectrum4.jpg   44.31KB   2 downloads

Edited by EnoSat, 23 April 2023 - 10:23.


Re: Spectrum Analyser #2 littlesat

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Posted 23 April 2023 - 10:39

As far I understand you need extra hardware... but when you can also select a peak and scan the frequency you git something that is much better than blindscan.


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Re: Spectrum Analyser #3 Huevos

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Posted 23 April 2023 - 12:27

You cant make a spectrum analyser out of an enigma tuner. A spectrum analyser is an analogue device. The only measurements you can get from an enigma tuner are signal quality measurements on a locked signal. For a spectrum analyser you need capable hardware.

Re: Spectrum Analyser #4 littlesat

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Posted 23 April 2023 - 13:01

What about eg an rtl-sdr stick…. When eg you ‘tab’ the connection to the LNB…. Which can also be used for dab+

Edited by littlesat, 23 April 2023 - 13:58.

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Re: Spectrum Analyser #5 Huevos

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Posted 23 April 2023 - 15:44

What about eg an rtl-sdr stick…. When eg you ‘tab’ the connection to the LNB…. Which can also be used for dab+

Some USB tuners have spectrum, e.g. TBS5925, but it is not useful because it takes minutes to complete. My spectrum analyser does the sweep several time a second. The whole point of the spectrum is it is fast enough that can be used for aligning dishes in real time.



Re: Spectrum Analyser #6 EnoSat

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Posted 25 April 2023 - 20:58

Blindscan basically does the same thing, it looks for unknown signals, it just doesn't display the spectrum, the tuner also uses AVC or AGC, which is actually an analog value,

the first pioneer was probably Dr.HD16
 



Re: Spectrum Analyser #7 Huevos

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Posted 26 April 2023 - 08:30

Blindscan basically does the same thing, it looks for unknown signals, it just doesn't display the spectrum, the tuner also uses AVC or AGC, which is actually an analog value,

the first pioneer was probably Dr.HD16
 

And that is exactly my point. We can only do software tricks when the hardware is capable. Dr HD16 has capable hardware (for spectrum). And for blindscan too we need capable hardware. This is why people buy expensive modules like the TBS5925.


Edited by Huevos, 26 April 2023 - 08:33.


Re: Spectrum Analyser #8 EnoSat

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Posted 26 April 2023 - 10:32

So Relook 400 or Cuberevo 900 had capable HW when they were rendering the spectrum years ago?



Re: Spectrum Analyser #9 littlesat

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Posted 26 April 2023 - 11:12

With additional hardware this is indeed possible and then you can make a real quick blindscan by selecting a peek and click on a kind of investigation button :D

 

You need to split off the LNB with a kind of SDR radio thing and create a user interface around it....It would be a complete project.


WaveFrontier 28.2E | 23.5E | 19.2E | 16E | 13E | 10/9E | 7E | 5E | 1W | 4/5W | 15W



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