But if you bypass demodulator, don't you have to demodulate in software then?
How can you just say "NO" isn't that nonsense?
Can the RTL2832U capture the 10MHz Bandwidth?
Is it 10Mhz Bandwidth?
Wasn't it something like 3MB/s max on the RTL, does that mean 3MHz with 8 Bit Samples?
Wether CPU can handle is another topic, but GHz Multicore + GPU don't look like completely impossible.
-----Ursprüngliche Nachricht-----
Von: "Müller, Marcus (CEL)" <mueller@kit.edu>
Gesendet: Montag, 26. August 2019 14:11
An: "Ingo.Wolf@gmx.de" <ingo.wolf@gmx.de>
Cc: "osmocom-sdr@lists.osmocom.org" <osmocom-sdr@lists.osmocom.org>
Betreff: Re: AW: Re: DVB-T2
</osmocom-sdr@lists.osmocom.org></ingo.wolf@gmx.de>
No.
The fact that you can use your RTL dongle as SDR device is because one
can *bypass* most of the digital logic (demodulator, decoder, stream
extractor…) and just get a raw IQ stream.
Decoding DVB-T in software is a really CPU-intense problem, due to
high-rate (in both senses of the word) channel coding, complex
synchronization, and high-order constellations used.
Best regards,
Marcus
On Sun, 2019-08-25 at 05:02 +0200, Ingo.Wolf@gmx.de wrote:
> But isn't SDR demodulation in software?
>
> -----Ursprüngliche Nachricht-----
> Von: "Steve Markgraf" <steve@steve-m.de>
> Gesendet: Samstag, 24. August 2019 18:19
> An: osmocom-sdr@lists.osmocom.org; Ingo.Wolf@gmx.de
> Betreff: Re: DVB-T2
> Hi,
>
> On 24.08.19 12:14, Ingo.Wolf@gmx.de wrote:
> > can somebody confirm RTL-chip is not DVB-T2 capable not having 10MHz
> > bandwidth needed?
>
> The RTL2832U does not support DVB-T2 as it lacks the required
> demodulater hardware. On the RTL2832P, an external demodulator can be
> attached via a parallel MPEG TS interface. This is used by dongles
> manufactured by Astrometa, which attach a Panasonic MN88472 DVB-T2
> demodulator, see [1].
>
> Regards,
> Steve
>
> [1]
https://steve-m.de/pictures/rtl-sdr/rtl2832p_dvbt2/>