Hi Trueblues, the packet encoder and decoder blocks are known to be broken – that's why they are in the "deprecated" category! It'll be gone with the next minor release of GNU Radio, even. (same will happen to WX GUI, so switch to Qt now!)
So, please don't use them; I don't expect them to work. Instead, you'll find, within the examples that came with GNU Radio¹ the digital/packet/packet_rx.grc and digital/packet/packet_tx.grc examples. These I expect to work. They are hierarchical blocks, which you can generate and through reloading of the block library also find in GRC's block library. in digital/packet_loopback_hier.grc you'll find a fully fledged transceiver – that has all the bells and whistles of a minimal communication system, including error correction, and phase and clock corrections. Much, much better than "packet decoder" ever has been. As soon as you have a rough idea what happens in the loopback flow graph, replace the "Channel Model" with your pair of USRP sink and source, and try it over the air :) As we're trying to stay atop of documentation, can I ask you how you came to build your flow graph with the packet en- and decoder? Is it completely a design of our own, or is there resources within our sphere of influence that we might clean up? Best regards, Marcus ¹typically /usr/[local/]share/gnuradio/examples On Wed, 2018-06-27 at 02:54 +0200, Trueblues 17 wrote: > I'm having a problem sending a text file between two usrp 2922 > devices. I'm running gnuradio companion on both laptops on windows. > The FFT sink in the receiver detects an incoming signal however the > file sink size is 0 byte.I attached both tx and rx flow graphs i > used. I previously implemented an FM transceiver without any problems > but when it comes to text, image and video i can't get an output > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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