Re: [Discuss-gnuradio] Send custom data

I wanna send variables, which depends on the operating environment. Flowgraph can only send predefined data. So maybe I should directly call the UHD API. Is it correct? Thanks. 2013/3/20 1:47, Josh Blum wrote: Isnt all data, custom data? So the streamer interface is still just samples, as is t

Re: [Discuss-gnuradio] time_recov and freq_recov in generic_mod_demod

And also, if I want to test the frequency at right after the usrp source and after time_recov block at the receiver, what can I do? Thanks! From: yeran0...@hotmail.com To: discuss-gnuradio@gnu.org Date: Wed, 5 Jun 2013 14:47:26 + Subject: [Discuss-gnuradio] time_recov and freq_recov in gener

[Discuss-gnuradio] time_recov and freq_recov in generic_mod_demod

Hi everyone, I have a question in understanding the generic_mod_demod.py. As I looked up from the documents, it was said that the signal after the usrp source at the receiver, is baseband signal, whose central frequency is around 0 Hz, and already take off the carrier frequency. But in the demod

[Discuss-gnuradio] Sampling glitch in the RX path

Hi Guys, I am using N210 with SBX at 5M sampling rate. I have one USRP Source running continuously (connected to the TX/RX antenna), and a USRP Sink (connected also to TX/RX) that sends timed packets with the tx_time, tx_sob, tx_eob tags at a rate of 1 ms per packet. I am sending packets 10 ms pri

Re: [Discuss-gnuradio] Sampling glitch in the RX path

If there are no overruns, you are most likely not dropping samples. The switch from rx to tx and back will not impact the received sample stream. Increase your packet lead time from 10 ms. Keep in mind that the PC will have some process jitter so that actual transfer of the burst may vary from th

[Discuss-gnuradio] Error in grid_plotter.py

I have a user who is occasionally getting this: raceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/common.py", line 106, in self._plotter.Bind(wx.EVT_LEFT_DOWN, lambda evt: plotter.call_freq_callback(evt.GetPosition())) File "/usr/lo

Re: [Discuss-gnuradio] Sampling glitch in the RX path

Hi John, Thanks for the quick reply. Increasing the lead time will just delay the occurrence of the storm of L's (when the host gets permanently behind the USRP). Here is some data which supports this claim and I think the TX/RX switch rate influences these: 1) I periodically send for 0.9 ms time

[Discuss-gnuradio] GNU Radio (etc) via MacPorts Update

I finally finished the gnuradio (and related) ports today, for install via MacPorts on Mac OS X (mainly 10.6+, but should work on 10.4+). I split gr-osmosdr off such that there is a 3.6 API version and a 3.7 API version -- respective: gr-osmosdr and gr-osmosdr-next. The GNU Radio ports are spl

[Discuss-gnuradio] GnuRadio + EveryCircuit?

Here is a link to an Android ap called: EveryCircuit http://www.everycircuit.com/ My question is, if I learn how to design circuits on this application, will I gain insights into the subtleties of gnuradio?___ Discuss-gnura

[Discuss-gnuradio] PC/SC reader emulation

Greetings- Can I emulate a PC/SC reader with GNU radio? Does anyone have any code or configuration, which I can leverage please? Regards- Ghazamfar -- View this message in context: http://gnuradio.4.n7.nabble.com/PC-SC-reader-emulation-tp41825.html Sent from the GnuRadio mailing list archive at

[Discuss-gnuradio] Ucla Zigbee compiling issues on MacOs X and Ubuntu 12.04.2 LTS

Hi folks, I have recently bumped into some issues when building the ucla_zigbee platform both on macos and ubuntu 12.04.2. I'll shortly sum up my two setups : *Setup 1* MacOs X 10.7.4 Macports 2.1.3 (It was used for getting the gnuradio dependencies) GNU Radio 3.6.4.2 installed from tarball

[Discuss-gnuradio] Slow app launch

Not sure if this is gnuradio related or xQuartz, but gnuradio_companion is slow to launch (MacOS i7 processor). Gpredict also behaves the same way. Once launched, everything is fine. I'm thinking it's more related to XQuartz. Anyone else seen this? Thanks, -d ___

Re: [Discuss-gnuradio] Ucla Zigbee compiling issues on MacOs X and Ubuntu 12.04.2 LTS

Hello Arturo, On 06/06/2013 01:55 AM, Arturo Rinaldi wrote: I have recently bumped into some issues when building the ucla_zigbee platform both on macos and ubuntu 12.04.2. I'll shortly sum up my two setups : I think the UCLA blocks were not updated to work with GNU Radio 3.6.4. I made some 8