Spectrum Analyser
EnoSat 23 Apr 2023
Edited by EnoSat, 23 April 2023 - 10:23.
littlesat 23 Apr 2023
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.
Huevos 23 Apr 2023
littlesat 23 Apr 2023
Edited by littlesat, 23 April 2023 - 13:58.
Huevos 23 Apr 2023
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.
EnoSat 25 Apr 2023
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
Huevos 26 Apr 2023
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.
EnoSat 26 Apr 2023
So Relook 400 or Cuberevo 900 had capable HW when they were rendering the spectrum years ago?
littlesat 26 Apr 2023
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
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.