Re: [Discuss-gnuradio] resample ratio for fractional_resampler

Hi Marcus: Nice insights and plots. > From: Marcus Müller > Date: Mon, 23 Oct 2017 20:10:23 +0200 [snip] > From the above figure, I'd say: go for 256 taps; 50 dB of anti- > aliasing should probably suffice. > On my machine, the 256 tap FIR filter with decimation=64 ran about > 20%

Re: [Discuss-gnuradio] resample ratio for fractional_resampler

On Tue, 2017-10-24 at 08:16 -0400, Andy Walls wrote: > Hi Marcus: > > Nice insights and plots. > > > From: Marcus Müller > > Date: Mon, 23 Oct 2017 20:10:23 +0200 > > [snip] > > From the above figure, I'd say: go for 256 taps; 50 dB of anti- > > aliasing should probably suffice. > >

[Discuss-gnuradio] osmocom block for limemicrosystems unite7002m board

Hello there Is there any osmocom block made for lms7002 type evaluation boards? Best ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Osmocom Source Block

Hello, I am trying to test our setup to see if there is any issues and I am not getting any results for FFT and waterfall plot. I am using a LimeSDR connected to a PC running the latest version of Debian. The LimeSDR is connected to an antenna a coworker brought in which operates in the 162.550

Re: [Discuss-gnuradio] resample ratio for fractional_resampler

Hi Andy, The fallacy I had in my own head was that the MMSE resampler also filters sufficiently – I think that is not true; it's just a resampler, you need to "select" (as in: filter everything else away) the appropriate bandwidth yourself before. Therefore: Yang, you'll need to filter befor

Re: [Discuss-gnuradio] osmocom block for limemicrosystems unite7002m board

Hello, On 24/10/17 13:52, ogün levent wrote: > Hello there > > Is there any osmocom block made for lms7002 type evaluation boards? More than simply an Osmocom block you'll need a driver. The LimeSDR is based on the STREAM (Cyclone IV) FPGA board + UNITE 7002 EVB, and the Lime Suite driver was or

Re: [Discuss-gnuradio] resample ratio for fractional_resampler

Hi Marcus, What I do at the transmitter side is (QPSK signal): pulse shaping(Root Cosine FIR Filter ) ---> resampling (where the fractional resampler is inserted) --> low pass filter-->frequency shifter (move the signal to the frequency it belongs to with respect to the usrp's center frequency ) -

Re: [Discuss-gnuradio] Osmocom Source Block

Not really an answer, more of an alternate solution, but if you use gqrx, (set driver string to "driver=lime,soapy=0") gqrx should provide a dropdown to choose antennas from whatever magic was deduced by querying osmocom to query soapy to query the limesuite driver, and return a list of antennas.

Re: [Discuss-gnuradio] Osmocom Source Block

Hello, I will try GQRX soon, we had it working on LimeSuite to where we could see an FFT. We could not get get it to work on GNURadio. I believe we have an error in our parameters for osmocom block. Ricardo On Tue, Oct 24, 2017 at 11:23 AM Anon Lister wrote: > Not really an answer, more of an

[Discuss-gnuradio] Plot I vs Q vs Time

Hi Everyone, Does anyone know of a QT or Wx block that plots I vs Q vs time in all three dimensions? 73s Chris ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Plot I vs Q vs Time

Update: After a quick discuss with another dev, I am after that third dimension view so the regular time or constellation sinks are not what I need. The time sink has I and Q on the same Y axis, with time in X. I was hoping there was an existing edit to the standard wx or qt time sink to see I

[Discuss-gnuradio] gr-dtv | DVB-S2 : video bitrate const while symbol rate increased

Hey folks, this is just a request for enlightenment. :-) I was playing around with the dvb-s2 modulation blocks. I started with the example graph dvs2_tx.grc and the example video (adv16apsk910.ts) and an ursp. At the receiver side, I used an ericsson rx 8200. I then increased the symbol rate an

[Discuss-gnuradio] Audio sink + windows binaries

Hi all, I have a problem using audio sink on windows 10 using the installation of the latest binaries from here: http://www.gcndevelopment.com/gnuradio/index.htm The audio is simply not playing what is SUPPOSED to play. If anyone wants to give me some feedback on what may be wrong please take a

[Discuss-gnuradio] Reset gnu radio simulation

How can we able to reset the gnu radio simulation during run time using blocks. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Warning while running gr-ieee-80211

*Ubuntu 16.04* *GNURadio and gr-ieee-80211 installed yesterday using pybombs * I get this warning when I run the wifi_rx.grc "The total sum of rates (20.00 MSps on 1 channels) exceeds the maximum capacity of the connection" And then a lot of overflows. I was generating 802.11g using a VSG.

[Discuss-gnuradio] Frequency hopping in gnu radio

Can you please suggest me the important steps & guideline for the implemention frequency hopping using blocks in gnu radio. Best, ATIF JAVED ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnurad