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Re: [Discuss-gnuradio] RDS / TMC / DAB / DVB-S/T ?
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] RDS / TMC / DAB / DVB-S/T ? |
Date: |
Sat, 14 Oct 2006 06:49:03 -0700 |
User-agent: |
Mutt/1.5.9i |
On Sat, Oct 14, 2006 at 08:47:36AM +0200, Christian Felsing wrote:
> Hello,
>
> I am new to GNUradio, there are some questions regarding GNUradio:
> Does it support RDS (http://en.wikipedia.org/wiki/Radio_Data_System),
Not currently, though definitely possible. There was some code
written a while ago that started to demod RDS. However, we have yet
to receive the appropriate copyright assignment from the authors and
are thus unable to use the code as a starting point.
If anyone else is working on this, or knows more, please speak up.
> TMC (http://en.wikipedia.org/wiki/Traffic_Message_Channel),
Once you've got RDS, this is straight forward.
> DAB (http://en.wikipedia.org/wiki/Digital_audio_broadcasting) or
Jens Elsner <address@hidden> was working on this, not sure of the
status. The work-in-progress is not in the GNU Radio repository.
> DVB-S/T (http://en.wikipedia.org/wiki/DVB) ?
> Is that USRP sufficient for broadband applications like DVB ?
The USRP could receive the raw signals for DVB-T in the 6 and 7 MHz wide
channel format. The 8 MHz wide version could be somewhat degraded
because of filter rolloff at the edges of the passband of the digital
downconverter in the FPGA. Shifting to 8-bit I&Q would allow the full
8 MHz wide signal to fit across the USB at the expense of dynamic range.
I'm not sure of the bandwidth required for DVB-S and thus can't comment.
Eric
Re: [Discuss-gnuradio] Debian packages???, Matt Ettus, 2006/10/14