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21. [Discuss-gnuradio] Invalid packets in ofdm_rx example (score: 2)

Author: Usama Saeed <usaeed.bee15seecs@seecs.edu.pk>

Date: Thu, 5 Jul 2018 13:57:59 +0500

Hello, this is my first time posting a question: I tried using the ofdm_tx and ofdm_rx examples with two USRP B200s, but even though I could see the ofdm spectrum on the receiver end, the time graph

/archive/html/discuss-gnuradio/2018-07/msg00015.html (5,190 bytes)

22. Re: [Discuss-gnuradio] uhd_packet_rx example freezes - Header/Payload Demux not releasing payload (score: 2)

Author: Justin Hamilton <justham101@gmail.com>

Date: Fri, 7 Apr 2017 10:53:08 +1000

Hi Marcus, Thanks for your response! So I spent the last week testing out the changes you recommended. First I had a look at the FLL block with the waterfall plots but couldn't immediately spot anyth

/archive/html/discuss-gnuradio/2017-04/msg00072.html (11,750 bytes)

23. Re: [Discuss-gnuradio] uhd_packet_rx example freezes - Header/Payload Demux not releasing payload (score: 2)

Author: Marcus Müller <marcus.mueller@ettus.com>

Date: Thu, 30 Mar 2017 16:15:58 +0200

Hi Justin, sorry for the delayed response. So: indeed, the uhd_packet_rx.grc flow graph has two different sync elements: 1. the FLL band-edge 2. PFB Clock Sync within the packet_rx hier block, as you

/archive/html/discuss-gnuradio/2017-03/msg00372.html (9,455 bytes)

24. [Discuss-gnuradio] uhd_packet_rx example freezes - Header/Payload Demux not releasing payload (score: 2)

Author: Justin Hamilton <justham101@gmail.com>

Date: Tue, 28 Mar 2017 12:58:47 +1000

/archive/html/discuss-gnuradio/2017-03/msg00327.html (6,831 bytes)

25. [Discuss-gnuradio] no payload length passed from header data (score: 2)

Author: 李博远 <lbyhplby@gmail.com>

Date: Sat, 18 Mar 2017 21:48:26 +0000

Hi,     I'm testing the basic packet transmission functions.      I use a vector source to generate binary stream, tag it, add crc, use a protocol formatter to generate a header and mix the head

/archive/html/discuss-gnuradio/2017-03/msg00168.html (6,611 bytes)

26. Re: [Discuss-gnuradio] Running tx_ofdm.grc and rx_ofdm.grc together (score: 2)

Author: avinash kalyanaraman <avinash1988@gmail.com>

Date: Fri, 17 Jun 2016 04:49:35 +1200

Sorry - the following is tx_flowgraph. Incorrect attachment previously.  On Fri, Jun 17, 2016 at 4:46 AM, avinash kalyanaraman <address@hidden> wrote: Hello all,  I have a setup that involves 2 N21

/archive/html/discuss-gnuradio/2016-06/msg00223.html (6,902 bytes)

27. [Discuss-gnuradio] Running tx_ofdm.grc and rx_ofdm.grc together (score: 2)

Author: avinash kalyanaraman <avinash1988@gmail.com>

Date: Fri, 17 Jun 2016 04:46:41 +1200

Hello all,  I have a setup that involves 2 N210s with the WBX daughterboard, one being the TX_OFDM and other being RX_OFDM. I am trying to run tx_ofdm.grc and rx_ofdm. I modify tx_ofdm to send a fil

/archive/html/discuss-gnuradio/2016-06/msg00222.html (7,034 bytes)

28. Re: [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Maicon Kist <maiconkist@gmail.com>

Date: Tue, 23 Feb 2016 15:49:33 -0300

Hi Martin, just checking here: Do you understand the full design of the rx_ofdm and tx_ofdm flow graphs I do understand the overall design (at least for my uses) Also, you never want to limit the num

/archive/html/discuss-gnuradio/2016-02/msg00319.html (12,190 bytes)

29. Re: [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Martin Braun <martin.braun@ettus.com>

Date: Mon, 22 Feb 2016 10:06:23 -0800

Maicon, just checking here: Do you understand the full design of the rx_ofdm and tx_ofdm flow graphs? Also, you never want to limit the number of items. The Random Source does not get prioritized, it

/archive/html/discuss-gnuradio/2016-02/msg00295.html (10,038 bytes)

30. Re: [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Maicon Kist <maiconkist@gmail.com>

Date: Mon, 22 Feb 2016 09:19:33 -0300

You don't want to do that. The overhead is terrible and it likely won't help find the problem. First, make sure you're using the latest gnuradio (3.7.9.1?) release. The gr-zmq blocks in any prior gn

/archive/html/discuss-gnuradio/2016-02/msg00290.html (11,207 bytes)

31. Re: [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Andy Walls <andy@silverblocksystems.net>

Date: Fri, 19 Feb 2016 12:41:01 -0500

On Fri, 2016-02-19 at 12:01 -0500, address@hidden wrote: You don't want to do that. The overhead is terrible and it likely won't help find the problem. First, make sure you're using the latest gnurad

/archive/html/discuss-gnuradio/2016-02/msg00265.html (9,080 bytes)

32. Re: [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Maicon Kist <maiconkist@gmail.com>

Date: Fri, 19 Feb 2016 14:14:34 -0200

Well, Im trying to figure out why the quantity of numbers received is way smaller than the quantity generated. So, I did something more simples: - I modified the rx_ofdm.grc file (in gnuradio/exampl

/archive/html/discuss-gnuradio/2016-02/msg00263.html (13,763 bytes)

33. Re: [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Maicon Kist <maiconkist@gmail.com>

Date: Thu, 18 Feb 2016 10:58:22 -0200

Hello I manage to solve the problem of gr::log :INFO: packet_headerparser_b0 - Detected an invalid packet at item 2112 gr::log :INFO: header_payload_demux0 - Parser returned by replacing all ZMQ REP

/archive/html/discuss-gnuradio/2016-02/msg00238.html (11,563 bytes)

34. Re: [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Maicon Kist <maiconkist@gmail.com>

Date: Thu, 18 Feb 2016 09:09:28 -0200

Hello I manage to solve the problem of gr::log :INFO: packet_headerparser_b0 - Detected an invalid packet at item 2112 gr::log :INFO: header_payload_demux0 - Parser returned #f by replacing all ZMQ R

/archive/html/discuss-gnuradio/2016-02/msg00237.html (8,986 bytes)

35. Re: [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Maicon Kist <maiconkist@gmail.com>

Date: Wed, 17 Feb 2016 10:01:36 -0200

Hi all, I have modified the file RX OFDM to test the ZMQ REP/REQ blocks. What I did, basically, was to split the original in 5 different ‘parts’. Instead of connection the blocks directly, I thr

/archive/html/discuss-gnuradio/2016-02/msg00230.html (9,051 bytes)

36. [Discuss-gnuradio] Problem with RX OFDM through the network (score: 2)

Author: Maicon Kist <maiconkist@gmail.com>

Date: Tue, 16 Feb 2016 11:22:35 -0200

Hi all, I have modified the file RX OFDM to test the ZMQ REP/REQ blocks. What I did, basically, was to split the original in 5 different ‘parts’. Instead of connection the blocks directly, I thro

/archive/html/discuss-gnuradio/2016-02/msg00221.html (7,857 bytes)

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