Re: [Discuss-gnuradio] No module named _runtime_swig in version 3.7.11

2018-04-06 Thread Vladimir Komendantskiy
I fixed the error by deleting /etc/ld.so.cache: $ sudo rm /etc/ld.so.cache $ sudo ldconfig I'm quoting the output of the commands you sent me. The output is the same before and after deleting the cache. So they don't point at the source of the issue. $ gnuradio-config-info --enabled-components

Re: [Discuss-gnuradio] FSK Burst emission

2018-04-06 Thread Jeff Long
Those could very well be pictures of the same signal. Note that the VBW is different on your two spectrum analyzer captures, and the GRC view is probably not set up the same as either of those. On 04/05/2018 04:59 AM, samuel verdon wrote: Hello I come back with my 2FSK burst emission. I will

Re: [Discuss-gnuradio] Setting up OOT module to include/extend another OOT Module class

2018-04-06 Thread Anshul Thakur
I tried modifying the gr-osmosdr source to add the message sink in the source_impl.cc. Turns out, we cannot have message passing in hierarchical blocks as discussed in this post: https://lists.gnu.org/archive/html/discuss-gnuradio/2016-01/msg00291.html and this one:

Re: [Discuss-gnuradio] Ways to improve latency of a low bandwidth stream

2018-04-06 Thread Johannes Demel
Hi Mario, to sum it up - your packet duration is: 128bit(in your case also symbols)/50kBaud/s = 2.56ms - Your "device" sample rate is 50kBaud/s * 20 = 1MSps. First, do you use any hardware? Or is this just a simulation for now? If it is a simulation, do you use a throttle block? In case it is

Re: [Discuss-gnuradio] Ways to improve latency of a low bandwidth stream

2018-04-06 Thread Mario Rossi
Johannes, Thank you, those were good inputs and I tried running some tests with it. Yes, I'm using an SDR in that loop (hackrf). I fixed a problem with my code and got rid of most of the jitter, the latency is now stable around 60-70 milliseconds. I tried measuring latency of a file source,