Re: [Discuss-gnuradio] DAB with GNU Radio

[Christoph Fischer]

Hello Andreas,

thank you for your very interesting reply.

> > we would like to implement a DAB receiver with GNU radio. On the 
> > hardware side we have a USRP with the TVRX daughterboard. 
>
> Jens Elsner, who worked on DAB some time ago, found out that the TVRX
> actually disturbs the OFDM signal very much, making it rather hard to
> receive DAB, so I would strongly discourage its use (I'm not able to get
> any information out of TVRX samples currently).

That is bad news... So perhaps at first we should do some analysis if 
DAB is really impossible with the TVRX or if we only have severe 
degradation of SNR. We have a DAB transmitter just some km away from the 
university so perhaps it could somehow work at least for this one... 
Does anyone already have some data about the phase stability of the 
TVRX? Unfortunately the L-Band is no option here.

> > Is there any initial advice or pointers to existing implementations you 
> > could give us? Do we need the checkout the svn version or even some 
> > branch or is the 'latest stable' enough?
>
> I have uploaded my current code to [2]. It requires GNU Radio from the
> trunk and some small patches (mainly for the peak detector). If you are
> interested, I can also send you my mostly-finished semester thesis
> off-list.

Thank you very much for all that. We also would be very interested in 
your thesis.

Regards,
Chris

christoph_fischer.vcf
Description: Vcard