Re: [Discuss-gnuradio] Question on using the GMSK Mod Block and GLFSR Block

2017-06-22 Thread Cinaed Simson
I've never used GMSK Modulator - and the parameters you're using are for GLFSR are for type float. Enclosed is an example. I set the Throttle to Bypass since it runs better for some reason. Play with samples per symbol and the delay slider. And I used the default configuration values for GMFSK

Re: [Discuss-gnuradio] Changing transmit gain

2017-06-22 Thread Marcus Müller
Hi Tellrell, um, that's kind of hard to tell without knowing your flow graph! However, if you've got a block (eg. the USRP Sink) that allows configuration through async message passing: Try my gr-msgblock OOT Module, and use/modify variable_to_msg to translate the variable to a message that you

Re: [Discuss-gnuradio] TUN/TAP PDU not working

2017-06-22 Thread Cinaed Simson
On 06/17/2017 04:26 AM, mansourabadi.mojt...@gmail.com wrote: > Hi Cinaed, > > Sorry to miss the previous email. > > I need to clarify that B210 USRP is connected to the PC though USB cable. > That's why my Ethernet cards are disabled. > > Meanwhile I have been trying different things and I not

Re: [Discuss-gnuradio] Clock recovery without change of phase

2017-06-22 Thread Marcus Müller
Hi George, isn't the job of a clock recovery actually to *change* the phase of your signal so that its original clocking is recovered? I'm a bit confused; could you maybe elaborate on what you want to do (what for/why/what specific output are you looking for)? Are you maybe looking for the clock

Re: [Discuss-gnuradio] TUN/TAP PDU not working

2017-06-22 Thread Derek Kozel
Hello Cinaed, I have no experience with the TUN/TAP code or setup, but the B210 is an SDR which can only be connected to the host using USB. There is no IP address associated with it. https://www.ettus.com/product/details/UB210-KIT Regards, Derek On Thu, Jun 22, 2017 at 10:29 AM, Cinaed Simson

Re: [Discuss-gnuradio] dB or dBm

2017-06-22 Thread Ralph A. Schmid, dk5ras
But still the dynamic range usually ends already quite below the maximum allowed level what is more a kind of hardware protection rule. Add some more attenuation and see if at least a 5dB change on your transmitter creates a 5dB change on your SDR. Then you are in the linear range and can start tr

[Discuss-gnuradio] cross correlation in the time domain and through Fourier tranform ?

2017-06-22 Thread jmfriedt
I am trying to understand how to use the output of FFT vectors for computation, rather than just displaying spectra (FFT Sink). I have assembled a pseudo-random generators (linear feedback shift registers) which output two identical pseudo-random sequences (PRN) when clocked by the sound card outp

Re: [Discuss-gnuradio] TUN/TAP PDU not working

2017-06-22 Thread Cinaed Simson
On 06/22/2017 05:24 AM, Derek Kozel wrote: > Hello Cinaed, > > I have no experience with the TUN/TAP code or setup, but the B210 is an > SDR which can only be connected to the host using USB. Did you try it? >There is no IP > address associated with it. Probably because you haven't given it one

Re: [Discuss-gnuradio] cross correlation in the time domain and through Fourier tranform ?

2017-06-22 Thread Andy Walls
From: jmfriedt Date: Thu, 22 Jun 2017 20:00:55 +0200 > > > However I'd like to demonstrate the same effect when going through the > Fourier > domain. I convert > the stream to vector (4096 sample long is much more than the about 256-sample > long PRN), multiply > one vector with the comple