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Re: [Discuss-gnuradio] modulation blocks propagate eob tag?


From: Martin Braun (CEL)
Subject: Re: [Discuss-gnuradio] modulation blocks propagate eob tag?
Date: Mon, 25 Feb 2013 18:09:37 +0100
User-agent: Mutt/1.5.21 (2010-09-15)

Hi Pablo,

you can use the tag_debug or metadata file sink blocks to see if your
tags are propagating correctly.

MB

On Mon, Feb 25, 2013 at 04:58:52PM +0000, Pablo Belzarena wrote:
> Hi, With gnuradio 3.6.3 I am using the gr_message_burst_source to generate
> messages (one message per second)  and set the bob and eob correctly. After
> this block I connect the following blocks to send bpsk modulated messages
> : packet_to_unpacket_bb, map_bb, chuncks_to_symbol, rrc_filter and the
> uhd_usrp_sink. However, I get many "U" characters in the screen, and many
> errors in the reception. I think that one or many blocks of the previous ones
> do not propagate the tags properly. I appreciate any help to solve this 
> problem
> /question. Thank you.


-- 
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Dipl.-Ing. Martin Braun
Research Associate

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Building 05.01
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Phone: +49 721 608-43790
Fax: +49 721 608-46071
www.cel.kit.edu

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association

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