26 Aug
2019
26 Aug
'19
2:11 p.m.
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(a)gmx.de wrote:
But isn't SDR demodulation in software?
-----Ursprüngliche Nachricht-----
Von: "Steve Markgraf" <steve(a)steve-m.de>
Gesendet: Samstag, 24. August 2019 18:19
An: osmocom-sdr(a)lists.osmocom.org; Ingo.Wolf(a)gmx.de
Betreff: Re: DVB-T2
Hi,
On 24.08.19 12:14, Ingo.Wolf(a)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/