Re: [Discuss-gnuradio] RDS

[Matt Ettus]

Posting your code, even if still a work in progress would be useful. 
I'd like to take a look.

Matt

Ryan Shoff wrote:
>
> I've updated the RDS code that Ronnie Gaensli posted back in February
> to the current build structure and added a USRP example.
>
> What should I do with it to get it in svn?
>
> It works fine. However, a couple of the blocks never leave their sync
> state, so you can't change channels. That shouldn't be a hard fix.
>
>
> Ryan Shoff
>
>
>
>
> -----Original Message-----
> From: address@hidden
> on behalf of Jan Schiefer
> Sent: Fri 10/6/2006 2:27 AM
> To: Matt Ettus
> Cc: address@hidden
> Subject: Re: [Discuss-gnuradio] RDS
>
> Great pointer! Here is the posting:
> http://www.archivum.info/address@hidden/2006-02/msg00018.html
> This would be great to build on.
>
> Cheers,
>     Jan
>
> Matt Ettus wrote:
> > I seem to recall someone writing a gr-rds module a while ago.  You might
> > check the mailing list archives.  I would love to have this feature in
> > gnuradio.  Please let me know if you need any help.
> >
> > Matt
> >
> >
> > Jan Schiefer wrote:
> >  
> >> Hi Erlend,
> >>
> >> I think you should be able to see the subcarrier with the USRP. The
> >> injection level of the RDS signal is typically around 1.5 to 2%, this
> >> is substantially less than the pilot, which is typically around 9%,
> >> but it should still be visible. Make sure you have a good signal
> >> without too much multipath. Also, you want to double-check whether the
> >> station you are looking at is indeed carrying RDS (not sure whether
> >> everybody does in Norway).
> >>
> >> If you end up writing a decoder, please drop me a line. The American
> >> version of RDS, called RBDS, is (of course) slightly different. I'd be
> >> interested in helping to making sure that it will work on both sides
> >> of the Atlantic.
> >>
> >> Cheers,
> >>    Jan
> >>
> >>
> >> Erlend Barstad Strand wrote:
> >>    
> >>> Hi
> >>>
> >>> I am trying to extend the usrp_wfm_rcv_pll.py by reading the RDS
> >>> subcarrier, however I have a problem observing the subcarrier at
> all. I
> >>> have connected a file_sink to the fm_demod in order to see the
> spectrum
> >>> in Matlab. In the spectrum I can observe the L+R, L-R and pilot tone,
> >>> but no RDS subcarrier at 57kHz.
> >>>
> >>> Have anyone successfully seen this channel on broadcast FM?
> >>>
> >>> Is it possible that the RDS subcarrier doesnt have enough power to be
> >>> oberved with the USRP board?
> >>>
> >>> best regards
> >>> erlend
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
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> >>>
> >>>  
> >>>      
> >>
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> >>    
> >
> >
> >  
>
>
>
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