I think) signal
visualization sink so maybe this simply never came up.
Actually, the warning that the visualization window nearly hides reads:
std::cerr << "Warning: QWT5 has been found which has serious performance
issues with raster plots."
and so, maybe the performance issue is so sev
Great! I doubled the backslashes, and it seems to be working now. Thank you
very much!
Ellie
From: kpreid.switchb@gmail.com [mailto:kpreid.switchb@gmail.com] On
Behalf Of Kevin Reid
Sent: Saturday, February 25, 2017 11:14 AM
To: Ellie White
Cc: discuss-gnuradio@gnu.org
Subject: Re
Hello,
I have constructed a small loop antenna with the intent to monitor the
signal strengths of VLF submarine communication stations in order to detect
sudden ionospheric disturbances (caused by solar activity). I have this
antenna connected to an upconverter and RTL-SDR dongle, and have been
Hello again,
I have a quick question to ask about how the file sink works (since this
was slightly unrelated to the other question I thought I should put it
under a different subject line). To provide some background info, my
sampling rate is set at 300e6, and I recorded data for (I’m guessing)
ock, with
the number of samples being set to 300,000,000·60·5. Notice that you **do not**
want to do that, usually. In GNU Radio's default complex signal type, which is
complex numbers composed of 32 bit real and 32bit imaginary float, that's 720
GB.
Best regards,
Marcus
On 03/31/2
annels, but in
many cases, it is sufficient to set sample rate = bandwidth. In fact, I am not
sure if it is truly configurable in this case, as some SDR transceivers simply
ignore that field (as well as some gain parameters).
Regards,
Kyeong Su Shin
On Thu, Mar 30, 2017 at 3:03 PM, Ellie White
mail
rmation or if I should clarify anything, please
let me know. Thanks!
Ellie
#plotData.py
""" This program will read in a data file from Gnu Radio and plot it.
Ellie White 25 Feb. 2017
"""
import pylab as plt
import os
import numpy as np
def main():
infil
project, and it
has certainly been an interesting one!
Best wishes,
Ellie
From: Marcus D. Leech [mailto:mle...@ripnet.com]
Sent: Thursday, April 20, 2017 10:05 PM
To: Ellie White
Subject: Re: [Discuss-gnuradio] File sink: file size
On 04/20/2017 09:57 PM, Ellie White wrote:
Hi Marcus
Oops, forgot to reply all!
From: Ellie White
Sent: Thursday, April 20, 2017 9:57 PM
To: Marcus D. Leech
Subject: RE: [Discuss-gnuradio] File sink: file size
Hi Marcus -
Apologies for the delayed response! Thanks for your helpful input and for
sending the link to your SID repository. It looks
Hello,
I've taken Marcus's suggestion to use the integration block to average
samples taken with my loop antenna, and that is working extremely well for
my purposes! However, I do have a question about something I don't quite
understand - I'm hoping someone can point me in the right direction.
I'
Hi Ben –
Hopefully this reply comes through. Thanks!
Ellie
From: Discuss-gnuradio
[mailto:discuss-gnuradio-bounces+orionnebula42=outlook@gnu.org] On Behalf
Of Ben Hilburn
Sent: Friday, July 14, 2017 4:37 PM
To: GNURadio Discussion List
Subject: [Discuss-gnuradio] Issues Posting to List
H
Hello!
I have a quick question to ask, related to sampling rate and observed
frequency on the waterfall sink. I’ve been testing an antenna (connected to
an SDR dongle) with both GNU Radio and SDR#, and have noticed something
kind of odd. In SDR#, I can see some strong signals at ~125040 kHz (125
Hi,
Sorry, just realized that decreased bandwidth = decreased signal to noise.
Had a memory slip on that one! But I am still interested in the main part
of the question.
Thanks in advance!
Ellie
On Sat, Jul 15, 2017 at 11:13 AM, Ellie White
wrote:
> Hello!
>
>
>
> I have a qu
Hello,
Quick question; I'm looking at a document by Marcus Leech for a 21cm radio
telescope (not sure when it was written, or where I found it online - I
printed it out a long time ago and just came across it while sorting
paperwork) and I am interested in using the simple_ra module that was
menti
as reading).
Thanks again!
On Wed, Aug 30, 2017 at 3:35 PM, Ellie White
wrote:
> Hello,
>
> Yes, thank you, that helps a lot! That's exactly what I was looking for.
> Good to know about SVN and Github, too - I'll keep that in mind (to be
> honest, I had never heard of
gt; Hello Ellie White:
>
> Is this what you are looking for? https://github.com/
> patchvonbraun/simple_ra
>
> Many open source projects (not just GNU Radio) migrated from CVS/SVN to
> Git.
>
> Regards,
> Kyeong Su Shin
>
> Note that I don't do much maint on
e:
> On 08/30/2017 03:40 PM, Ellie White wrote:
>
> Thanks for the info about spectro_radiometer - that looks really
> helpful. Thank you so much for providing these resources for amateur radio
> astronomy!
>
> Have a good evening,
>
> Ellie
>
> You're most wel
Sorry, I just realized that there is a "Python Module" block in the
flowgraph with the ID "spectro_helper." Do I need to modify the code in
this block, and if so, how?
Thanks so much!
Ellie
On Mon, Sep 4, 2017 at 3:48 PM, Ellie White
wrote:
> Hello again,
>
> Ok,
Version 3.7.9, on a VM Ware Ubuntu machine.
On Mon, Sep 4, 2017 at 7:26 PM, Marcus D. Leech wrote:
> On 09/04/2017 03:48 PM, Ellie White wrote:
>
> Hello again,
>
> Ok, so I cloned the code from the spectro_radiometer repository, and
> opened the .grc file. It looks like almos
Hi all,
I am an amateur radio astronomy enthusiast and I've been using an RTL-SDR
(R820T) USB dongle for my projects; up until now I had been using a Windows 8.1
laptop, but that one is on the blink right now so I've switched to a Windows 10
computer. I've tried to plug in my SDR and run the f
1, I think(?) Then connect the 2nd channel (chan1) to the output of the
source
block. The modified .grc file works right away.
Cheers
Glen
On Thu, Feb 22, 2018 at 11:36 PM, Marcus D. Leech
mailto:mle...@ripnet.com>> wrote:
On 02/22/2018 11:13 PM, Ellie White wrote:
Hi all,
I am
so much,
Ellie
From: Marcus D. Leech
Sent: Friday, February 23, 2018 6:50 PM
To: Ellie White; Glen Langston
Cc: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] RTL-SDR device failed to open in flowgraph
On 02/23/2018 05:51 PM, Ellie White wrote:
Hi
or reference. (Note that I made sure my AirSpy dongle was
plugged in before running it). Any ideas you might have on how to solve
this would be much appreciated, thanks in advance!
Cheers,
Ellie
--
Ellie White (she/her)
304-654-9381
Physics Major / Student Researcher
Marshall University
record_psd_data.grc
Description: application/gnuradio-grc
:
> nchan is already a block parameter (nchan=1 in your grc), and it's added
> for you as numchan, as seen in the args in your error message.
>
> After trying everything else, I deleted the spaces from the args and the
> error went away!
>
> On Sat, Jul 17, 2021 at 2:
That makes sense, thanks Marcus!
Cheers,
E.
On Sat, Jul 17, 2021 at 5:36 PM Marcus D. Leech
wrote:
> On 07/17/2021 05:28 PM, Ellie White wrote:
>
> Hi Jeff,
>
> Thank you so much for this advice and for taking the time to investigate
> this -- I just tried removing the space
ta.py
""" This program will read in a data file from Gnu Radio and plot it.
Ellie White 25 Feb. 2017
"""
import pylab as plt
import os
import numpy as np
def main(fftsize=8192):
infile = 'data-raw.obs' #input("Enter the name of the file to read
decimation etc.
>
> More later when I get to a real computer.
>
> Sent from my iPhone
>
> > On Jul 10, 2019, at 2:54 PM, Ellie White wrote:
> >
> > Hello!
> >
> > I am working on a radio astronomy project with the Green Bank
> > Observatory / NRA
you have a good afternoon!
Best,
Ellie
On Wed, Jul 10, 2019 at 6:04 PM Marcus D. Leech
wrote:
> On 07/10/2019 04:19 PM, Ellie White wrote:
> > Hi Marcus,
> >
> > Thanks for getting back to me! I really appreciate your suggestion --
> > why didn't I think of t
info that you can provide on this would be much appreciated -- have a
great afternoon!
Best,
Ellie
ettus-filesink.grc
Description: application/gnuradio-grc
#plotData.py
""" This program will read in a data file from Gnu Radio and plot it.
Ellie White 25 Feb. 2017
"&qu
Forgot to cc the list the first time...
On Thu, Jul 25, 2019 at 1:16 PM Ellie White
wrote:
> Hi Marcus,
>
> Thanks for the suggestion, much appreciated. Do you have an alternative to
> recommend? The nature of the equipment I am working with requires that the
> SDR be plugged in
t;
> Best regards,
> Marcus
>
> On Thu, 2019-07-25 at 13:09 -0400, Ellie White wrote:
> > Hi all,
> >
> > Hope you are doing well! I have been working on a flowgraph (attached)
> that will allow me to process and save data samples from an Ettus SDR
> (which is plug
-- have a good evening!
Best,
Ellie
On Thu, Jul 25, 2019 at 1:36 PM Müller, Marcus (CEL)
wrote:
> On Thu, 2019-07-25 at 13:24 -0400, Ellie White wrote:
> > Hi Marcus,
> >
> > Good to know. So how would you recommend I should convert these values
> to, say, watts?
>
>
Sun, Jul 28, 2019 at 6:05 PM Marcus D. Leech
wrote:
> On 07/28/2019 05:45 PM, Ellie White wrote:
>
> Hi Marcus,
>
> Thanks for your reply. Actually, that's not what I was asking -- I do
> understand what the difference is between storing values corresponding to
>
l 28, 2019 at 6:17 PM Marcus D. Leech
wrote:
> On 07/28/2019 06:14 PM, Ellie White wrote:
>
> Hi Marcus --
>
> Excellent! I tried this and am now getting identical results from the
> Complex to Mag^2 block as I am from my imitation of it. Thank you so
> much for your he
Leech
wrote:
> On 07/29/2019 08:22 AM, Ellie White wrote:
> > Hi Marcus,
> >
> > Thanks for the interesting tidbit -- and yes, I'll be following your
> > advice on using the integrated block for sure. And by the way -- I've
> > got one more question on a s
Hi all,
I hope you're doing well! Thanks again for your help with my questions
earlier this summer. I've got another thing to ask now; I am in the process
of configuring a system to record integrated spectra using the attached
flowgraph, and I am trying to determine how to integrate for, say, 60
s
te block's source
code to be sure? Thanks in advance for any additional suggestions you might
have on this!
Cheers,
Ellie
On Sat, Aug 10, 2019 at 7:37 PM Marcus D. Leech
wrote:
> On 08/10/2019 03:40 PM, Ellie White wrote:
> > Hi all,
> >
> > I hope you're doing
08/10/2019 10:48 PM, Ellie White wrote:
>
> Hi Marcus,
>
> Thanks for your reply. I am not sure how the integration works, but if you
> know how the Integrate block does the integration, then that is how my
> flowgraph does it. I suspect it is "sum /reduce /dump" as you
On Sun, Aug 11, 2019 at 1:51 AM Marcus D. Leech
wrote:
> On 08/10/2019 11:43 PM, Ellie White wrote:
>
> Hi Marcus,
>
> Thanks for the advice. So, I just tried an experiment to test out your
> suggestion, and came up with a puzzling result. I set the sample rate to 4
> MHz,
that?
Thanks so much for your time and patience with this. Have a nice afternoon!
Cheers,
Ellie
On Sun, Aug 11, 2019 at 4:48 PM Marcus D. Leech
wrote:
> On 08/11/2019 10:46 AM, Ellie White wrote:
>
> Hi Marcus,
>
> I've attached the two flowgraphs I am using to record data
y advice you might have!
Take care,
Ellie
--
Ellie White
Co-Director, Open Source Radio Telescopes
Student at Marshall University
304-654-9381
www.catseyeenterprises.net
ellie:build$ cmake ../
-- The CXX compiler identification is GNU 7.5.0
-- The C compiler identification is GNU 7.5.0
-- Check for
5 PM Vasil Velichkov
wrote:
> Hi Ellie,
>
> On 06/06/2020 00.25, Ellie White wrote:
> > Hi all,
> >
> > Hope you are staying safe and well. I wanted to email with a quick
> question
> > -- I am trying to install the gr-osmosdr module and am having some
> >
stions you might have!
Take care,
Ellie
--
Ellie White
Co-Director, Open Source Radio Telescopes
Student at Marshall University
304-654-9381
www.catseyeenterprises.net
# Copyright 2011,2012,2014,2016 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free softwar
27;ll
try testing them on some SigMF files from the Allen Array tomorrow. Can
send a screen capture when I get it working if you like :)
Thanks again Marcus! Have a good evening.
Ellie
On Wed, Jun 17, 2020 at 10:44 PM Marcus D. Leech
wrote:
> On 06/17/2020 10:10 PM, Ellie White wrote:
&g
us D Leech
wrote:
> Sure I’d be interested in those screen caps.
>
> Sent from my iPhone
>
> On Jun 17, 2020, at 11:51 PM, Ellie White
> wrote:
>
>
> Fantastic, thanks Marcus!! Installed libboost-regex and
> libboost-regex-dev, tried cmake again, it gave me an
les/gnuradio-sigmf.dir/all] Error 2
Makefile:140: recipe for target 'all' failed
make: *** [all] Error 2
Do you have any idea what might be going on here, or what I should do next?
Thanks Marcus! Have a good morning.
Cheers,
Ellie
On Thu, Jun 18, 2020 at 10:46 AM Marcus D. Leech
wrote
t;
> Sent from my iPhone
>
> On Jun 18, 2020, at 11:39 AM, Ellie White
> wrote:
>
>
> Hi Marcus,
>
> Thanks so much for the advice, I really appreciate it! So when I tried
> that, it did work, and I was able to run a flowgraph successfully in GNU
> Radio 3.7, s
Thu, Jun 18, 2020 at 6:49 PM Ellie White wrote:
> Hi Marcus,
>
> Maybe that's the case -- I did notice some comments on the gr-sigmf github
> page that seemed to indicate maybe it has been (at least partly) upgraded for
> GNU Radio 3.8. But maybe not for 3.9 -- so I decide
; Sent from my iPhone
>
>> On Jun 18, 2020, at 11:39 AM, Ellie White wrote:
>>
>>
>> Hi Marcus,
>>
>> Thanks so much for the advice, I really appreciate it! So when I tried that,
>> it did work, and I was able to run a flowgraph successfully in GNU Radi
the basic
> metadata of the dataset from the sigmf-meta file.
>
> -Paul Wicks
>
>
> On Thu, Jun 18, 2020 at 10:14 PM Ellie White
> wrote:
>
>> Hi Marcus, all,
>>
>> Well, seems you’re right that gr-sigmf hasn’t been converted to gr 3.8
>> yet. Just fi
on Ubuntu 18.04. Happy to provide
additional info if necessary! Thanks as always for your time and help.
Best wishes,
Ellie
--
Ellie White
Co-Director, Open Source Radio Telescopes
Student at Marshall University
304-654-9381
www.catseyeenterprises.net
ewhite@ewhite-ubuntu:~/src/gr-filerepeate
-ata/blob/master/python/control.py#L54)
Does anyone have any advice on this? This is my first time writing
message-passing blocks so I am unfamiliar with the process. If I need to
clarify any of the above please let me know and I'd be glad to. Thanks so
much for your time and help -- I apprec
state variables to keep things from happening out of order, and
> _maybe_ you can register the message handler late?
>
> On Thu, Jul 9, 2020 at 12:01 PM Ellie White wrote:
>>
>> Hey all,
>>
>> I've got a question about message handling in GNU Radio. I'm w
> Cheers
> Christoph
>
>
> On Thu, Jul 9, 2020 at 6:00 PM Ellie White wrote:
> >
> > Hey all,
> >
> > I've got a question about message handling in GNU Radio. I'm working on
> > developing an out of tree module for controlling the
ata
from a USRP and get a plot of intensity versus velocity with respect to the
local standard of rest (V_LSR) -- instead of intensity versus frequency, as
given by the time sink block?
Thanks so much for considering this, and for any ideas you have to share!
Have a nice day and take care.
Cheers,
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