Re: USRP E310 limited sample rate
The Zynq CPU cannot possibly sustain sample rates of 10s of MSPS. The E3xx series have larger FPGAs that support the RFNOc framework that support high sample rate signal flows within the FPGA. Sent from my iPhone > On Apr 12, 2021, at 10:55 PM, Louis Jung wrote: > > Hi all, > > I’m currently testing USRP E310. > > When I check the functionality of E310, I found a limitation on its sample > rate. > > The test setup is TX (E310) transmits a sinusoidal signal (signal frequency > 1k) continuously to RX (B210 with another host machine) with different sample > rate(1M - 10M). > USRP Sink’s center frequency is 5 GHz band and gain is 0.75 (normalized), and > I’ve set its master clock rate 60 MHz. > > When the sample rate is lower than 10 MHz, RX shows clear sine wave. > <.png> > However, when I increased it to 10 MHz, the signal is crashed. > <22.png> > Is it the limitation of E310? Or I configured wrongly? > > Any help would be great to me. > > Best, > > Jinhwan
Re: PT GUI SINK (name)
It looks like the sink label/name is not rendered for the QT Sink. On 12/04/2021 13:30, alberto.alle...@alice.it wrote: Hi to all! Today i have another question.. I have created a small spectrum analyzer and it work fine. But, in the QT GUI SINK, at "Name" field i have writted "Test".but when i execute in the windows "Test" don't appear ... why ? Screenshot attacched Tnx Alberto
Re: QT chooser and QT range do not cooperate with each other
I would have implement this differently: First solution combine To filters taps in one filter such as final_taps=rrc_taps*(pulse-1)+rect*pulse with pulse =0 or 1 (obtainde with a QT GUI Chooser) BUT filters must have the same number of coefficients 2nd: use QT Gui selector as in this flowgraph. (it can be extended to multiple filters easily) Regards, Christophe P.S. my flowgraph is for GR 3.8 /3.9 On 12/04/2021 19:10, Achilleas Anastasopoulos wrote: Hi all, I have a flowgraph with QT chooser choosing between rect pulse and rrc pulse. I also have a QT range where I want to control the rolloff factor of the rrc pulse when chosen. However, in the flowgrpah it seems that once the rrc is chosen I cannot change its roloff factor dynamically from the QT range. I have tried it in both 3.7 and 3.8 and I get the same result. Is this a bug? Is there a more appropriate way of achieving this result? thanks Achilleas test_chooser_2.grc Description: application/gnuradio-grc
Re: PT GUI SINK (name)
Hi Cinaed, nope, that sets the id, i.e. the name of the Python object. That can't affect the Text displayed. Best regards, Marcus On 12.04.21 21:33, Cinaed Simson wrote: > > Hi Alberto - in the GRC file, open the > > Options > > block and set the > > Id > > field to > > test > > Doesn't need quotes - and in general no hyphens - use underscore instead. > > -- Cinaed > > On 4/12/21 4:30 AM, alberto.alle...@alice.it wrote: >> Hi to all! >> Today i have another question.. >> >> I have created a small spectrum analyzer and it work fine. >> >> But, in the QT GUI SINK, at "Name" field i have writted "Test".but when >> i execute in >> the windows "Test" don't appear ... why ? >> >> Screenshot attacched >> >> Tnx >> Alberto >> >> > >
Re: QT GUI SINK (name) (was: PT GUI SINK (name))
Hi Alberto, you're mixing things up: the window title is not the title of the Qt GUI Sink. You can have many of these in one window! You set the window title in the "Options" block. Best regards, Marcus On 12.04.21 13:30, alberto.alle...@alice.it wrote: > Hi to all! > Today i have another question.. > > I have created a small spectrum analyzer and it work fine. > > But, in the QT GUI SINK, at "Name" field i have writted "Test".but when i > execute in > the windows "Test" don't appear ... why ? > > Screenshot attacched > > Tnx > Alberto > >
Re: PT GUI SINK (name)
Hi Alberto - in the GRC file, open the Options block and set the Id field to test Doesn't need quotes - and in general no hyphens - use underscore instead. -- Cinaed On 4/12/21 4:30 AM, alberto.alle...@alice.it wrote: Hi to all! Today i have another question.. I have created a small spectrum analyzer and it work fine. But, in the QT GUI SINK, at "Name" field i have writted "Test".but when i execute in the windows "Test" don't appear ... why ? Screenshot attacched Tnx Alberto
Re: QT chooser and QT range do not cooperate with each other
This is true. Take a look at the generated isi.py. The pulse options are generated statically and changes are not propagated through the chooser. Not a bug, really, but propagation of variables is not consistent everywhere. On Mon, Apr 12, 2021 at 1:14 PM Achilleas Anastasopoulos wrote: > Hi all, > > I have a flowgraph with QT chooser choosing between rect pulse and rrc > pulse. > I also have a QT range where I want to control the rolloff factor of the > rrc pulse when chosen. > However, in the flowgrpah it seems that once the rrc is chosen I cannot > change its roloff factor dynamically from the QT range. > > I have tried it in both 3.7 and 3.8 and I get the same result. > Is this a bug? > Is there a more appropriate way of achieving this result? > > thanks > Achilleas >
QT chooser and QT range do not cooperate with each other
Hi all, I have a flowgraph with QT chooser choosing between rect pulse and rrc pulse. I also have a QT range where I want to control the rolloff factor of the rrc pulse when chosen. However, in the flowgrpah it seems that once the rrc is chosen I cannot change its roloff factor dynamically from the QT range. I have tried it in both 3.7 and 3.8 and I get the same result. Is this a bug? Is there a more appropriate way of achieving this result? thanks Achilleas test_chooser.grc Description: Binary data
Re: PT GUI SINK (name)
You entered Test, but I think you needed to enter “Test” (with quotes) as I think this is a string. Kind Regards, Nik (Sent from a mobile device) > On 12 Apr 2021, at 12:47, alberto.alle...@alice.it wrote: > > > Hi to all! > Today i have another question.. > > I have created a small spectrum analyzer and it work fine. > > But, in the QT GUI SINK, at "Name" field i have writted "Test".but when i > execute in the windows "Test" don't appear ... why ? > > Screenshot attacched > > Tnx > Alberto > > > >
