Re: Questions to set up Gnuradio for windows WSL

2025-04-03 Thread George Edwards
Hi Tony, thank you. Regards, George On Thu, Apr 3, 2025, 4:00 PM Tony Richardson wrote: > It's been a while, but I believe I had this working for an Ettus B205 USB > device using the directions found here: > https://learn.microsoft.com/en-us/windows/wsl/connect-usb > I assu

Questions to set up Gnuradio for windows WSL

2025-04-03 Thread George Edwards
read that Windows WSL will do the trick, here are my questions: Q1. Which is best: WSL1 or WSL2 (I read this is like a Virtual Machine)? Q2. Running inside WSL1 or WSL2, will I be able to access the USB port directly as before (to Rx/Tx signals via HackRF)? Thank you! George

Re: QAM constellation script

2023-05-04 Thread George Katsimaglis
claim that is the most efficient way, but that is technically possible. George SV1BDS  On Thursday, May 4, 2023 at 11:04:42 AM GMT+3, Adrian Musceac wrote: On Wednesday, 3 May 2023 19:20:10 EEST Marcus Müller wrote: > Hi George, > > that's a multiplicative voice scramb

Re: QAM constellation script

2023-05-04 Thread George Katsimaglis
(thanks t\o GNURadio!!!).My QO100 ground station setup (90 cm for Rx and 3W@80 cm Tx ) permits me a few dB less signal than maximum allowed (beacon level) for a 2.7 kHz bandwidth in NB transponder.  Once more : THANKS for the detailed answer!!! George SV1BDS On Wednesday, May 3, 2023 at 07:20

Σχετ: Re: Σχετ: Re: Σχετ: Re: QAM constellation script

2023-05-01 Thread George Katsimaglis
Hi Marcus, Thanks for your detailed answer!!!Can we consider this approach as a new spread spectrum technology or is really an existing one? Best regards George SV1BDS  Στάλθηκε από το Ταχυδρομείο Yahoo σε Android Στις Δευ, 1 Μαΐ, 2023 στις 23:14, ο χρήστηςMarcus Müller έγραψε: Hi George

Σχετ: Re: Σχετ: Re: QAM constellation script

2023-04-29 Thread George Katsimaglis
Hi Marcus , Στάλθηκε από το Ταχυδρομείο Yahoo σε Android Στις Σάβ, 29 Απρ, 2023 στις 14:23, ο χρήστηςMarcus Müller έγραψε: Hi George, that flow graph doesn't frequency-hop :) It does something different, rather cool. Please correct me if I got anything wrong about your self-wr

Σχετ: Re: QAM constellation script

2023-04-28 Thread George Katsimaglis
Hi, Thanks for the answers.I attach the Rx flowchart and grc of the frequency hopping. I have successfully used it on QO100 satellite. George SV1BDS  Στάλθηκε από το Ταχυδρομείο Yahoo σε Android Στις Πέμ, 27 Απρ, 2023 στις 14:57, ο χρήστηςMarcus Müller έγραψε: Hi George, > Also I h

QAM constellation script

2023-04-23 Thread George Katsimaglis
Hello, I create this script using Python to create QAM constellations points.May be of general interest. # constellation creation script by George SV1BDSn = 7 # 3 for 16QAM, 7 for 64QAM, 15 for 256QAM, 31 for 1024QAM, 63 for 4096QAMc = '['for i in range(-n,n+2,2):  for j in rang

Re: N310 radio Sample Rate setting

2023-03-26 Thread George Edwards
Hi Marcus, Thank you very much! Regards, George On Sat, Mar 25, 2023, 4:05 PM Marcus D. Leech wrote: > On 25/03/2023 15:45, George Edwards wrote: > > Hello GNURadio Community, > > > > I am about to use a N310 radio to transmit and receive data. My > > problem is I d

N310 radio Sample Rate setting

2023-03-25 Thread George Edwards
these assumptions are correct? Thank you! Regards, George

Re: File Meta Sink question

2023-03-15 Thread Hassel, George
add multiple entries to the dictionary, or if it's possible to do so.Thanks for any assistance! Invoked with: 'FFT_size', 'freq' On Sun, Mar 12, 2023 at 5:54 PM Hassel, George wrote: > I'm still having some trouble with this issue.If I try to add a Fi

Re: How to force the decimation to schedule at least 16 output samples

2023-03-15 Thread George Edwards
Hi John, Thank you very much, it works! I appreciate your help very much! George On Wed, Mar 15, 2023, 11:05 AM John Sallay wrote: > The set_min_noutput_items function exists, but sadly it does nothing > (literally nothing). I've traced the value through the scheduler code to &g

How to force the decimation to schedule at least 16 output samples

2023-03-14 Thread George Edwards
input samples would be just fine)? Will appreciate any suggestion towards a solution. Thank you! George

Re: File Meta Sink question

2023-03-12 Thread Hassel, George
t;, and get an error message as shown [image: image.png] [image: image.png] I'm having trouble finding any documentation to help with this. Thanks! -George On Thu, Mar 9, 2023 at 11:06 AM Hassel, George wrote: > Hello, > > I'm having some difficulty with saving metadata.

Strange problem, block does not see the data, I can dump incoming data to file and also view constellation

2023-03-11 Thread George Edwards
sink and by writing to a file sink. However, the chain of blocks that connects to my block, just sits there doing nothing. It does not see the data. Has anyone experienced this problem and have an idea how to fix it? Thank you! George

Re: Reverse engineering .py file grc

2023-03-10 Thread George Edwards
Hi Marcus, Thanks! George On Fri, Mar 10, 2023 at 8:22 AM Marcus Müller wrote: > Hi George, > > there's no such tool in general, python blocks are just code, and > sometimes they're > generated from flow graphs, and sometimes written by hand. Anything that > contai

Data flow stops in grc

2023-03-09 Thread George Edwards
t the Decoder does not see the signal leaving my last block even though I can dump the signal to a file sink and view it. I have complex output from my block connected to complex input at Ron's Decoder. I will appreciate any suggestion for a solution. Regards, George

Reverse engineering .py file grc

2023-03-09 Thread George Edwards
Hello GNURadio Community, We are looking for a way to reverse engineer some Gnuradio Python blocks that were created by folks no longer with our company to the corresponding GRC files. Is anyone familiar with a tool that can do this for us? Thank you! Regards, George

File Meta Sink question

2023-03-09 Thread Hassel, George
3.10.3.0 My python3 version is 3.10.7 Thanks for any assistance you can provide! -George Hassel

Re: Installation of Gnuradio on Windows 11

2023-02-06 Thread George Edwards
Hi Ryan, Thanks you very much! Thanks you everyone for your suggestion! Regards, George On Mon, Feb 6, 2023, 12:03 PM Ryan Volz wrote: > Hi George, > > The conda installation method and radioconda should work fine on Windows > 11: > > https://wiki.gnuradio.org/index.php/Co

Installation of Gnuradio on Windows 11

2023-02-06 Thread George Edwards
, does this mean one can develop their own OOT custom block in the Windows environment similar to the Linux environment? Thank you very much! Regards George

Re: How to display a part of the GRC spectrum?

2023-02-04 Thread George Edwards
Hi Marcus, I understand where you are coming from. Thank you! Regards, George On Fri, Feb 3, 2023 at 12:23 PM Marcus D. Leech wrote: > On 03/02/2023 12:44, George Edwards wrote: > > Hi Marcus, > > I do not have any hardware. I am doing everything in simulation. I > d

Re: How to display a part of the GRC spectrum?

2023-02-03 Thread George Edwards
Thank you all for your wonderful ideas! Regards, George On Fri, Feb 3, 2023, 10:22 AM Marcus D. Leech wrote: > On 03/02/2023 12:07, George Edwards wrote: > > Thank you Marcus, thank you everyone! > > A more fundamental question I have is: Let's assume I was working at a lo

Re: How to display a part of the GRC spectrum?

2023-02-03 Thread George Edwards
support base that is miniscule over such a wide freq range +/- 1.5 GHz. So I would like to know if there is a way to instruct either GUI's such that the display pops up over a range of 1G +/- 2 MHz or a range of my choosing at the sample rate I am working at? Thank you! George On Fri, Feb 3, 20

Re: How to display a part of the GRC spectrum?

2023-02-03 Thread George Edwards
z, is there a way to instruct either the QT or webgui block to plot what I consider my range of interest at a sample rate of 32 kHz? Thanks for all your inputs. Regards, George On Fri, Feb 3, 2023, 9:12 AM Marcus Müller wrote: > First of all, that's a high sampling rate! > > You

Re: How to display a part of the GRC spectrum?

2023-02-03 Thread George Edwards
Hi Fabian, Thanks for your suggestion! However, it will not help me because I would like to see the spectrum displayed over the proper range 1GHz +/- 4MHz. George On Fri, Feb 3, 2023, 9:06 AM Fabian Schwartau wrote: > Hi George, > > I don't know if the Frequency sink can do tha

How to display a part of the GRC spectrum?

2023-02-03 Thread George Edwards
Dear GNURadio Community, Let's say I build a GRC flowgraph operating at a sample rate of 3 GHz and wish to display the spectrum over the fixed range of 1GHz +/- 4MHz, how do I get the QT GUI Frequency sink to plot over this range? Thank you! George

Re: Grc_gnuradio import blks2 replacement?

2023-02-01 Thread George Edwards
Thanks for the heads up Marcus! George On Wed, Feb 1, 2023, 11:07 AM Marcus D. Leech wrote: > On 01/02/2023 13:03, George Edwards wrote: > > Porting an older version of some code that used an earlier version of > > gnuradio libs, and am rebuilding with gnuradio 3.10. Old code

Grc_gnuradio import blks2 replacement?

2023-02-01 Thread George Edwards
Porting an older version of some code that used an earlier version of gnuradio libs, and am rebuilding with gnuradio 3.10. Old code referred to an import of blks2 from grc_gnuradio which then fails with No module named grc_radio. Is there a replacement for that module?

Σχετ: Re: Σχετ: Re: Pluto sink power issues

2022-12-09 Thread George Katsimaglis
Hello,A workaround that seems to work is to amplify signal before feeding to Pluto sink by a factor of 20-25.Best regards  Στάλθηκε από το Ταχυδρομείο Yahoo σε Android Στις Τρί, 22 Νοε, 2022 στις 0:14, ο χρήστηςCinaed Simson έγραψε:Hi George - it may be a bug which may have been fixed

Σχετ: Re: Pluto sink power issues

2022-11-20 Thread George Katsimaglis
? Best, Marcus On 16.11.22 12:08, George Katsimaglis wrote: > > Hello, > > I have two issues about Pluto sink attenuation (Tx power) for 3.10.1.1. > In previous versions with attenuation 0 it produces about 0 dBm output for a > single > frequency output. > Now it gives ab

Σχετ: Re: Pluto sink power issues

2022-11-16 Thread George Katsimaglis
Radio end or your end: How did that PlutoIMD.py get created? Best, Marcus On 16.11.22 12:08, George Katsimaglis wrote: > > Hello, > > I have two issues about Pluto sink attenuation (Tx power) for 3.10.1.1. > In previous versions with attenuation 0 it produces about 0 dBm output

Pluto sink power issues

2022-11-16 Thread George Katsimaglis
uation: float) -> None Invoked with: , 1.0 is displayed and attenuation does not change George SV1BDS

bug & SNR routine

2022-11-04 Thread George Katsimaglis
decimation = fft_size    """SNR calculation by George SV1BDS"""     def __init__(self, fft_size = 1024 ):  # only default arguments here        """arguments to this function show up as parameters in GRC"""        gr.decim_block.__in

Re: How can you force the Scheduler to deliver appropriate vector size input

2022-10-26 Thread George Edwards
Thank you very much! George On Wed, Oct 26, 2022, 9:51 AM Marcus Müller wrote: > Haha! Perfect :) Glad you solved the issue! And absolutely no reason to be > sorry! > > On 26.10.22 17:04, George Edwards wrote: > > Hi Marcus, > > I have egg on my face! I messed up

Re: How can you force the Scheduler to deliver appropriate vector size input

2022-10-26 Thread George Edwards
for taking up your time and the community time. Thanks again for your feedback! George On Wed, Oct 26, 2022, 5:16 AM Marcus Müller wrote: > Hi George, > > I can't really follow. A block in GNU Radio has a *fixed* output item > size. So, the Stream > To Vector block *can* only p

Re: How can you force the Scheduler to deliver appropriate vector size input

2022-10-26 Thread George Edwards
your thoughts, I appreciate it. George On Wed, Oct 26, 2022, 5:16 AM Marcus Müller wrote: > Hi George, > > I can't really follow. A block in GNU Radio has a *fixed* output item > size. So, the Stream > To Vector block *can* only produce items of size (448*sizeof(entry in

How can you force the Scheduler to deliver appropriate vector size input

2022-10-25 Thread George Edwards
or integer multiples of 448. Regards, George

Re: Problem with the OOT forecast() method in Python

2022-10-12 Thread George Edwards
the incoming data before upsampling. It seems the forecaster may be too loose in its input/output sample relationship and will mess up my algorithm. Anyway, if you have any thought on this and do not mind sharing I would appreciate it. Thank again for your assistance. George On Wed, Oct 12, 2022

Re: Problem with the OOT forecast() method in Python

2022-10-12 Thread George Edwards
Hi Jeff, thank you very much for the response. I tries: ninput_items_required[0]=[noutput_items] ninput_items_required=[noutput_items] and return [noutput_items] None of these worked for me. Regards George On Wed, Oct 12, 2022, 8:07 AM Jeff Long wrote: > For Python, the forecast() funct

Problem with the OOT forecast() method in Python

2022-10-12 Thread George Edwards
TypeError: 'int' object does not support item assignment. Will appreciate any suggestion to fix this problem. George

Problems getting the N310 to send dvbs2 video to itself

2022-09-26 Thread George Edwards
ying the symbol rate and sample rate, but nothing worked. Will appreciate any help provided to solve this problem. Thank you! George

Installed Gnuradio release 3.9 and see 3.10

2022-09-12 Thread George Edwards
? Thanks for any clarifying explanation. George

Re: Ubuntu 20.04 cannot find the Hackrf board?

2022-08-15 Thread George Edwards
Windows PC? Thank you! George George On Mon, Aug 15, 2022 at 5:08 AM Marcus Müller wrote: > Hi George, > > On 8/3/22 19:23, George Edwards wrote: > > Hi Marcus, thanks for the response, very much appreciated! > > I have a Windows PC and I believe that in order to build OOT bl

Re: Ubuntu 20.04 cannot find the Hackrf board?

2022-08-15 Thread George Edwards
Thanks Cinaed, I am going off on vacation, but will definitely contact the hackrf_dev group when I return. George On Mon, Aug 15, 2022 at 7:58 PM Cinaed Simson wrote: > Incidentally, don't use sudo to run the hackrf on Linux. > > You should be able to run the hackrf on Linux un

Re: Ubuntu 20.04 cannot find the Hackrf board?

2022-08-14 Thread George Edwards
Hi Cinaed, Thank you very much! I will check to see if I can do a more up to date hackrf version download. George On Fri, Aug 12, 2022, 4:28 PM Cinaed Simson wrote: > It sounds like you didn't > > apt install libhackrf-dev > > If you did install the libraries, then you ma

Problem seeing Hackrf One Hardware properly going through VirtualBox

2022-08-12 Thread George Edwards
he hackrf_info query: [image: image.png] I cannot find any info online to solve this problem (allow the Terminal query “hackrf_info” to return all the board information). As a result when I run the GRC flow graph, it fails because it cannot open hackrf. I would appreciate any suggestions. Thank you! George

Re: Ubuntu 20.04 cannot find the Hackrf board?

2022-08-04 Thread George Edwards
Hi Cinaed, Thank you very much! Will test! George On Thu, Aug 4, 2022, 12:27 AM Cinaed Simson wrote: > Hi George - the hackrf runs under ubuntu. > > The latest version is > > release 2021.03.1 > https://github.com/greatscottgadgets/hackrf/release > > https://gith

Re: Ubuntu 20.04 cannot find the Hackrf board?

2022-08-03 Thread George Edwards
HackRF. George On Wed, Aug 3, 2022 at 10:32 AM James Anderson wrote: > You might want to try running hackrf_info with superuser privileges using > sudo, i.e. "sudo hackrf_info". Many/most peripherals require this in Linux > by default. > > Additionally, use of a VM may

Re: Ubuntu 20.04 cannot find the Hackrf board?

2022-08-03 Thread George Edwards
Hi Marcus, thanks for the response, very much appreciated! I have a Windows PC and I believe that in order to build OOT blocks, one needs a Linux environment. I installed VirtualBox so that I can install Ubuntu 20.04 to get a Linux environment to install Gnuradio 3.9 in. George On Wed, Aug 3

Re: How do I extract individual values from pmt list and dict

2022-08-03 Thread George Edwards
Thank very much Marcus! George On Wed, Aug 3, 2022, 7:05 AM Marcus Müller wrote: > Hi George, > > first_element = pmt.vector_ref(P_list, 0) > > and > > spam_element = pmt.dict_ref(P_dict, pmt.to_pmt('spam'), pmt.PMT_NIL) > > respectively. > > Not

Ubuntu 20.04 cannot find the Hackrf board?

2022-08-03 Thread George Edwards
VirtualBox not seeing the HackRf board with the HackRf drivers installed. And, how do I resolve this issue? Will appreciate any help to resolve this issue. George

How do I extract individual values from pmt list and dict

2022-08-03 Thread George Edwards
nd the value for 'spam' from P_dict? Thank you! George

Re: Problem extracting individual elements from pmt list and pmt dictionary messages

2022-08-02 Thread George Edwards
value of the key 'spam'? P_list = pmt.to_pmt([1, 2, 3.45, 'eggs']) P_dict = pmt.to_pmt({'spam': 20, 'eggs': 40}) Thanks! George On Fri, Jul 29, 2022 at 2:58 PM Jeff Long wrote: > k = pmt.intern('spam') > nil = pmt.get_PMT_NIL() > v = pmt.di

Re: Problem extracting individual elements from pmt list and pmt dictionary messages

2022-07-29 Thread George Edwards
Hi Jeff, Thank you very much! Please make references directly to my pmt objects P_list and P_dict, so I can learn how to get elements from them? Thank you! Regards, George On Fri, Jul 29, 2022 at 2:58 PM Jeff Long wrote: > k = pmt.intern('spam') > nil = pmt.get_PMT_NIL() &g

Problem extracting individual elements from pmt list and pmt dictionary messages

2022-07-29 Thread George Edwards
t.to_pmt({'spam': 20, 'eggs': 40}) How do I extract individual elements from P_list and P_dict? Nothing I tried worked. I appreciate any help. Regards, George

Re: Problem seeing HackRF hardware on Mac via a Docker Container

2022-07-29 Thread George Edwards
Hi Derek and Daniel, Thank you very much! Will use your suggestions. George On Fri, Jul 29, 2022 at 7:51 AM Derek Kozel wrote: > Docker on a Mac can be setup with the networking passthrough to let the > X310 and N310 work. The limitation is specifically on USB device > passthrough

Re: Problem seeing HackRF hardware on Mac via a Docker Container

2022-07-28 Thread George Edwards
Hi Marcus, do you know if a Docker Container on Mac talk to either the X310 or N310 radio? George On Thu, Jul 28, 2022, 11:32 AM Marcus Müller wrote: > Hi George, > > Docker on Mac OS cannot pass through USB devices: > > > https://docs.docker.com/desktop/faqs/general/#can-i-

Re: Problem seeing HackRF hardware on Mac via a Docker Container

2022-07-28 Thread George Edwards
Thanks Marcus! George On Thu, Jul 28, 2022, 11:32 AM Marcus Müller wrote: > Hi George, > > Docker on Mac OS cannot pass through USB devices: > > > https://docs.docker.com/desktop/faqs/general/#can-i-pass-through-a-usb-device-to-a-container > > So, this is sadly impo

Problem seeing HackRF hardware on Mac via a Docker Container

2022-07-28 Thread George Edwards
suggestions, thank you. George

Re: Problems in my Python OOT specifications using input and output vectors

2022-07-21 Thread George Edwards
Hello GNURadio Community, No need to respond to my posting, I figured it out. Thank you! George On Wed, Jul 20, 2022 at 1:01 PM George Edwards wrote: > Hello GNURadio Community, > > I wrote a Python OOT block that takes a vector input and outputs a vector > of the same size. &g

Problems in my Python OOT specifications using input and output vectors

2022-07-20 Thread George Edwards
of bound for axis 0. Obviously, my input/output profile specification must be the problem. I will appreciate any help or suggestions. Thank you! George

GRC blocks become unresponsive w data stored in Variable Blocks

2022-05-05 Thread George Edwards
, things become normal and responsive again. I would appreciate any suggestions! Regards, George

Re: Problem using volk_32fc_s32fc_multiply_32fc function with vector params

2022-05-03 Thread George Edwards
Hi Johannes, Thank you very much! Really appreciate your help. George On Tue, May 3, 2022 at 10:07 AM Johannes Demel wrote: > Hi George, > > yes, you need to add `#include ` to use > `volk::vector`. A `volk::vector` is a specially templated `std::vector`. > You still use

Re: Problem using volk_32fc_s32fc_multiply_32fc function with vector params

2022-05-03 Thread George Edwards
, 240); // Or do I need to use &my_val Also, my current code has the following: #include do I in addition need to include #include ? Thank you very much! George On Tue, May 3, 2022 at 3:35 AM Johannes Demel wrote: > Hi George, > > All VOLK functions require pointers as you al

Re: Problem using volk_32fc_s32fc_multiply_32fc function with vector params

2022-05-03 Thread George Edwards
Hi Brian, Thank you very much! For my example, I will the following change: volk_32fc_s32fc_multiply_32fc(my_val.data(), my_val.data(), scale, 240); Thank you very much! George On Mon, May 2, 2022 at 10:51 PM Brian Padalino wrote: > On Mon, May 2, 2022 at 11:26 PM George Edwards >

Problem using volk_32fc_s32fc_multiply_32fc function with vector params

2022-05-02 Thread George Edwards
); The reason I need to use a vector is that with arrays, the size must be known at compile time, while with vectors one can build it at runtime. I would appreciate any suggestions. Thank you! George

Re: Meaning of value in noutput_items for an OOT with vector input

2022-04-21 Thread George Edwards
Hi Jeff, Thank you very much! George On Thu, Apr 21, 2022 at 12:21 PM Jeff Long wrote: > Right. Of course you can just use one loop of noutput_items * vlen > iterations. > > Technically noutput_items says how many items you may write, not how many > the scheduler is delivering

Re: How pass an input vector in an OOT QA test?

2022-04-21 Thread George Edwards
elements, WRONG AGAIN! So I am seeking help on how to feed in vectors from a QA file into a block that needs its data in vector form. Thank you! Regards, George On Thu, Apr 21, 2022 at 3:57 AM Marcus Müller wrote: > You'll have to tell us what you do with that `data` and what the > io_s

Re: Meaning of value in noutput_items for an OOT with vector input

2022-04-21 Thread George Edwards
< noutput_items; j++){ for (int i = 0; i < vlen; i++){ out[ vlen*j + i ] = in[ vlen*j + i ]; } } Am I right? Thank you! George On Wed, Apr 20, 2022 at 5:40 PM Jeff Long wrote: > The item size is vlen * sizeof (type), so you are seeing 16 * 512 > "samples". >

Meaning of value in noutput_items for an OOT with vector input

2022-04-20 Thread George Edwards
ovided the number of elements in each output vector. I will appreciate any insight into this issue. Thanks! George

How pass an input vector in an OOT QA test?

2022-04-20 Thread George Edwards
formated the QA data which I would like to be seen as a vector of 4 elements: data = (1.0, 2.0, 3.0, 4.0) and data = numpy.array([[1.0, 2.0, 3.0, 4.0], [5.0, 6.0, 7.0, 8.0]]) I would appreciate any suggestion. Thank you! George

Re: Problems with OOT C++ fft

2022-04-20 Thread George Edwards
Hello GNURadio Community, Please ignore the above problem, I figured it out. George On Sun, Apr 17, 2022 at 5:16 PM George Edwards wrote: > Dear Gnuradio Community, > > I am writing an OOT signal processing algorithm in C++ that requires both > fft and ifft. I use the Gnuradio C+

Problems with OOT C++ fft

2022-04-17 Thread George Edwards
Matlab). So I am at a loss! I appreciate any suggestions? Thank you! George

Re: How to get information on number of input data samples in C++ OOT

2022-04-14 Thread George Edwards
Hi Jeff and Vasil, Thank you very much! George On Wed, Apr 13, 2022 at 7:21 PM Jeff Long wrote: > The C++ API gives you ninput_items explicitly, so ninput_items[0] is the > number of items in input_items[0]. > > On Wed, Apr 13, 2022 at 7:18 PM George Edwards > wrote: >

How to get information on number of input data samples in C++ OOT

2022-04-13 Thread George Edwards
ge.png] I will appreciate any help provided. Thank you! George

Re: The firdes.low_pass_2(...) function in my GRC has stopped working

2022-03-16 Thread George Edwards
Hi Marcus, Thank you! I will look into the link you sent! George On Wed, Mar 16, 2022 at 11:26 AM Marcus D. Leech wrote: > On 2022-03-16 11:17, George Edwards wrote: > > Hello GNURadio Community, > > I have used the firdes.low_pass_2(...) function in many of my Gnuradio >

The firdes.low_pass_2(...) function in my GRC has stopped working

2022-03-16 Thread George Edwards
=Blackman_harris then, I would leave out the word window, also in calling the function, I tried low_pass_2 instead of firdes.low_pass_2. I would appreciate getting some suggestions from someone who has worked recently with this filter function. Thank you! Regards, George

Re: How to fill out the data type for parameter which is an array to a C++ OOT block?

2022-03-16 Thread George Edwards
! Regards, George On Wed, Mar 16, 2022 at 12:01 AM Mobi Zaman wrote: > > Hi, George, > > Let me refer you to existing code that uses vector inputs. I haven't done > this myself before but I think this can help you. > > 1. There is a Chunks to Symbols > <htt

How to fill out the data type for parameter which is an array to a C++ OOT block?

2022-03-15 Thread George Edwards
ector, etc.) should I fill in data type as: float_vector (replace the xxx before vector with the prefix float)? Thanks very much for your answer. George

Re: Is there a Gnuradio C++ function that is the equivalent of SciPy firls LP filter

2022-03-02 Thread George Edwards
Hi Marcin, Thank you very much! Will study this liquidsdr library to determine how I can incorporate it in my C++ OOT code. Regards, George On Wed, Mar 2, 2022, 1:54 AM Marcin Puchlik wrote: > Hi George, > Can you describe in more detail what you are trying to achieve? > If your coe

Is there a Gnuradio C++ function that is the equivalent of SciPy firls LP filter

2022-02-28 Thread George Edwards
gards, George

Re: Are there firls and kaiser filter methods for C++ OOT?

2022-02-23 Thread George Edwards
ly line, I would be able to test if "lowpass" works. Thanks again for all your help. Regards, George On Wed, Feb 23, 2022 at 2:02 AM Marcin Puchlik wrote: > George, > Running the below code: > > > > > > > > > > > > > *#include #include usi

Re: Are there firls and kaiser filter methods for C++ OOT?

2022-02-22 Thread George Edwards
er coeff's lpfilter = gr::filter::firdes::low_pass(gain, sampling_freq, cutoff_freq, transition_bandwidth); Thank you guys! George On Tue, Feb 22, 2022 at 3:41 PM Marcin Puchlik wrote: > Geroge, > I posted the working code a few messages ago. Try to check this out. BTW > as fa

Re: Are there firls and kaiser filter methods for C++ OOT?

2022-02-22 Thread George Edwards
message is: Argument of type "double" is incompatible with parameter of type "gr::fft::window::win_type" If one of you has a working code fragment using one of the C++ Gnuradio filter methods that you can cut, paste and send in your next email I would appreciate it. Thanks for your

Re: Are there firls and kaiser filter methods for C++ OOT?

2022-02-21 Thread George Edwards
remez filter_types are: one of "bandpass", "hilbert" or "differentiator", I would have thought lowpass filters would be included?? Thank you! George On Mon, Feb 14, 2022 at 12:05 AM Marcin Puchlik wrote: > Hello George, > Yes, there is. Check this o

Re: Are there firls and kaiser filter methods for C++ OOT?

2022-02-14 Thread George Edwards
Thank you very much Marcin! George On Sun, Feb 13, 2022, 11:05 PM Marcin Puchlik wrote: > Hello George, > Yes, there is. Check this out: > https://www.gnuradio.org/doc/doxygen/firdes_8h_source.html > https://www.gnuradio.org/doc/doxygen/pm__remez_8h.html > BR, > Marcin >

Are there firls and kaiser filter methods for C++ OOT?

2022-02-13 Thread George Edwards
Hello GNURadio Community, I am designing a Gnuradio OOT block in C++. Are there firls and kaiser filter methods (analogous to the scipy package methods that one would use in Python OOT) that I can call to generate coefficients. Thank you! Regards, George

Re: How to compute FFT and IFFT in C++ OOT?

2021-12-23 Thread George Edwards
Hi Ron, Thank you very much! I am sure I will have questions later on how to use FFT with windows (Harris Blackman, Kaiser, Hamming, etc.) but that is another story and I will do a new posting on that when I reach that point. Thank you very much! Happy Holiday Season! George On Thu, Dec 23

Re: How to compute FFT and IFFT in C++ OOT?

2021-12-23 Thread George Edwards
not see anywhere in your code where there is an explicit binding between in and get_inbuf(). I will appreciate it if you can help me here! Thank you! George On Wed, Dec 15, 2021 at 12:32 AM Ron Economos wrote: > FFT support is built in to GNU Radio with FFTW. Here's how it's done. >

Re: How to compute FFT and IFFT in C++ OOT?

2021-12-23 Thread George Edwards
Thanks Ron! I really appreciate your help! George On Wed, Dec 22, 2021, 9:52 PM Ron Economos wrote: > Comments in-line. > > Ron > On 12/22/21 1:30 PM, George Edwards wrote: > > Hi Ron, > > Today, I tried to create an OOT block to compute FFT based on your good > instr

Re: How to compute FFT and IFFT in C++ OOT?

2021-12-22 Thread George Edwards
my_fft_cc.impl.cc with a #define vlength 8, unless the fft function forces things to a minimum of 64 samples I will appreciate any suggestions you can offer here. Regards, George On Thu, Dec 16, 2021 at 8:14 PM Ron Economos wrote: > Comments in-line. > > Ron > On 12/16/21 12:47 PM, Ge

Re: How to compute FFT and IFFT in C++ OOT?

2021-12-17 Thread George Edwards
Hi Ron, Thank you very much! I really appreciate your help and patience. Best Regards, George On Fri, Dec 17, 2021 at 12:57 AM Ron Economos wrote: > Take a look at the FFT block code. > > > https://github.com/gnuradio/gnuradio/blob/master/gr-fft/lib/fft_v_fftw.cc#L83-L85 > &

Re: How to compute FFT and IFFT in C++ OOT?

2021-12-16 Thread George Edwards
e, how to access ofdm_fft.get_outbuf() //starting at address ofdm_fft_size/2 Thank you! Best Regards, George On Thu, Dec 16, 2021 at 8:14 PM Ron Economos wrote: > Comments in-line. > > Ron > On 12/16/21 12:47 PM, George Edwards wrote: > > Hi Ron, > > Thanks again for sending the li

Re: How to compute FFT and IFFT in C++ OOT?

2021-12-16 Thread George Edwards
t vector is on the variable "out" how do I taylor the expression in the link which I copied below to compute the fft and pass it to the output (plus, is volk_32fc_s32fc_multiply_32fc(...) a function in the fft computation module?): [image: df0555eb-9839-457b-ac3d-0a4c9d17c662.png] Thank you

Re: How to compute FFT and IFFT in C++ OOT?

2021-12-15 Thread George Edwards
Hi Ron, Thanks very much for this information! I will check out the links! Regards George On Tue, Dec 14, 2021, 11:32 PM Ron Economos wrote: > FFT support is built in to GNU Radio with FFTW. Here's how it's done. > First, define it in your foo_impl.h file. The options are

How to compute FFT and IFFT in C++ OOT?

2021-12-14 Thread George Edwards
gards, George

Re: Problems using multiple C files in OOT Block

2021-10-21 Thread George Edwards
Hi Vasil, I used gr_modtool to remove the entire block and build it back from scratch and now it works beautifully. Thanks for your offer to help. I appreciate the Gnu Radio Community for willingness to offer support! Regards, George On Wed, Oct 20, 2021 at 3:02 PM George Edwards wrote

Re: Problems using multiple C files in OOT Block

2021-10-21 Thread George Edwards
! Regards, George On Wed, Oct 20, 2021 at 8:41 PM Boris Marjanovic wrote: > Hi George, > > If I understood correctly, the module compiles correctly. When you > start/run the graph it complains it can not find/'see' the function. > This could be related to default visibility of

Re: Problems using multiple C files in OOT Block

2021-10-20 Thread George Edwards
Hi Vasil, Thank you very much! I have never used the Git Repository so I am setting up one and will post my code once that is done. I will let you know when it is posted. Again, thank you so much for your offer. Regards, George On Wed, Oct 20, 2021 at 1:19 AM Vasil Velichkov wrote: >

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