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From: | Roee Bar |
Subject: | Re: [Discuss-gnuradio] USRP Burst Mode Weirdness |
Date: | Fri, 13 Nov 2015 16:05:44 -0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 |
Yes I am changing the frequency on both. I have replaced the LFTX and the USRP motherboard with other boards and I get the same results, so I ruled out a hardware problem. It's like when using the length_tag feature on the USRP block it resets the USRP after every packet. I have created a simple experiment to reproduce this behavior. It consists of a simple signal generator, a tagger and two USRP blocks. When I enable the length tag in the USRP sink, I get a corrupted signal. When I don't use the length tag I get a nice signal. I attached a screen shot of GRC, the corrupted signal and the good signal. So maybe burst mode should not be used for packets or there is a bug in uhd/gnuradio. Roee On 11/13/2015 02:38 AM, Marcus Müller
wrote:
Hi Roee, |
grc.png
Description: PNG image
signal_with_tag.png
Description: PNG image
signal_without_tag.png
Description: PNG image
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