Re: Transmitter and Receiver on the same SDR

2022-05-24 Thread Fernando Peral
On 24/5/22 14:33, Oğuzhan Gedikli wrote: Hello, I have USRP B200 and i use GNU Radio for design. I want to transmit a random signal (whatever, is'nt important for now) I am using the TX/RX port as transmitter and the RX2 port as receiver. I can transmit signal without any problems but i can't

Re: Rational resampler does not change behaviour when changing the decimaton rate

2021-11-28 Thread Fernando Peral
I don't think this is a problem at all as long as you have the fractional resampler which works well in this case, maybe it is just a matter of documentation On 28/11/21 21:51, Jeff Long wrote: This is true. The buffers are allocated when the flowgraph starts, and buffer size depends on

Re: Rational resampler does not change behaviour when changing the decimaton rate

2021-11-28 Thread Fernando Peral
On 28/11/21 18:21, Jeff Long wrote: Sure, you can use a single tap. You will end up with aliasing when you decimate. Well, yes, I was using it for an educational example to show the effect of aliasing when doing decimation.

Re: [Discuss-gnuradio] HackRF + osmocon, RX works but TX doesnt

2017-03-01 Thread Fernando Peral
s El 01/03/17 a las 16:28, Marcus Müller escribió: > Yes, you can kill any receiver by overloading the RF amplifiers. > > Best regards, > > Marcus > > > On 03/01/2017 04:10 PM, Fernando Peral wrote: >> you mean you can break the hackRF if you use much gain? >

Re: [Discuss-gnuradio] HackRF + osmocon, RX works but TX doesnt

2017-03-01 Thread Fernando Peral
you mean you can break the hackRF if you use much gain? El 28/02/17 a las 22:57, Cinaed Simson escribió: > Also, you should get to know your HackRF so you don't blow the RF amplifiers > >http://www.greatscottgadgets.com/sdr ___ Discuss-gnuradio

Re: [Discuss-gnuradio] SNR of ADC

2017-02-28 Thread Fernando Peral
I think that since in the scenario you are describing there is all virtual there is no ADC but the round aproximation from the cos(t) function to a fixed number of bits used to represent the number with a float the computer is using, so the noise you can see in the FFT is the is indeed a

Re: [Discuss-gnuradio] HackRF + osmocon, RX works but TX doesnt

2017-02-28 Thread Fernando Peral
a > M: 8337942928 > > On Tue, Feb 28, 2017 at 1:22 AM, Fernando Peral > <ferna...@samara.com.es <mailto:ferna...@samara.com.es>> wrote: > > The problem appears when using the hackrf for TX even if there is > only one hackrf plugged. > Osmocon source mak

Re: [Discuss-gnuradio] HackRF + osmocon, RX works but TX doesnt

2017-02-27 Thread Fernando Peral
. thanks for the help El 27/02/17 a las 19:38, Chris Kuethe escribió: > try using the hackrf's serial number (d291f43, 5671743) rather than > the index (0, 1) > > On Sat, Feb 25, 2017 at 5:26 AM, Fernando Peral > <ferna...@samara.com.es <mailto:ferna...@samara.com.e

[Discuss-gnuradio] HackRF + osmocon, RX works but TX doesnt

2017-02-25 Thread Fernando Peral
Hi! I have a HackRF. I'm testing it. It works well receiving in GRC with osmocon source, but when trying to transmit with osmocon sink I receive an error FATAL: Failed to open HackRF device (-5) HACKRF_ERROR_NOT_FOUND It is like if it were a problem of permissions, but it is not, the

[Discuss-gnuradio] Performance for GNU-Radio: Intel i3-6100 or AMD FX-4300

2016-09-22 Thread Fernando Peral
I'm buying a new computer and two possible options will be intel i3-6100 and AMD FX-4300. Performance using GNU-Radio may be the key to the selection of one or the other. I guess the more cores the CPU, the better the performance. FX-4300 is 4 cores, i3-6100 is only two cores but they say

Re: [Discuss-gnuradio] GNURadio Live SDR update request

2016-02-17 Thread Fernando Peral
El 15/02/16 a las 17:44, Landsman, Arik escribió: > Hi Stephen, > > To add a few comments on persistence - the Live USB image doesn't come with > persistence configured. Two ways to do this, one of them does NOT work on > Ubuntu 14.04 (fixed on 15.04 as some forums claim): > > . > >

[Discuss-gnuradio] 3.7.8 release?

2015-10-18 Thread Fernando Peral
Hi. Is there any aproximate date for the final release? regards ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] GNU Radio live USB. GRUB2 broken, how to fix it?

2015-09-04 Thread Fernando Peral
Hi! I Installed GNU Radio live on a usb stick and I was changing some aspects of its configuration. I like to delete some entries of the boot menu (is to use with my students at class and I don't one anyone to use "install ubuntu") and i broke grub2. Now the usb stick does not boot. I know hot

[Discuss-gnuradio] GNU Radio live USB. GRUB2 broken, how to fix it?

2015-09-03 Thread Fernando Peral
Hi! I Installed GNU Radio live on a usb stick and I was changing some aspects of its configuration. I like to delete some entries of the boot menu (is to use with my students at class and I don't one anyone to use "install ubuntu") and i broke grub2. Now the usb stick does not boot. I know hot

[Discuss-gnuradio] repository of examples of gnuradio and GRC?

2014-03-30 Thread Fernando Peral
Everyone (or almost) who writes here is testing different systems, with different hardware and creating examples. There are some people who publish their work in their own web pages, git repositories, etc., and the rest of us are using them (thank to all of you!!!). But Is there any repository

Re: [Discuss-gnuradio] repository of examples of gnuradio and GRC?

2014-03-30 Thread Fernando Peral
ideas and time, I guess :) Greetings, Marcus On 30.03.2014 13:42, Fernando Peral wrote: Everyone (or almost) who writes here is testing different systems, with different hardware and creating examples. There are some people who publish their work in their own web pages, git repositories

Re: [Discuss-gnuradio] repository of examples of gnuradio and GRC?

2014-03-30 Thread Fernando Peral
Where anybody can easily share one desing, and where you can find anything you are looking for. El 30/03/14 16:32, Vanush Vaswani escribió: https://github.com/argilo/sdr-examples On Mon, Mar 31, 2014 at 1:20 AM, Fernando Peral ferna...@samara.com.es mailto:ferna...@samara.com.es wrote: I