RE: [EXT] Re: Recommendation for high sample rate receiver?

Your statement " A signal with 0.1 microsecond rise time definitely has definitely more than 6 MHz bandwidth" is not necessarily true. Simple proof: The first 3 components of a 1 Mcycle/sec square wave are: sin(2*pi*1e6*t) + (1/3) sin(2*pi*3*1e6*t) + (1/5) sin(2*pi*5*1e6*t). If you add just th

[Discuss-gnuradio] Errors With GRC using Eventstream

Folks, I am aware that the following is more likely an "EventStream" issue rather than a "GNUradio" issue, but I simply do not know to whom else to turn... I have tried multiple times in multiple ways to build GNUradio with Eventstream. I downloaded the Eventstream code from GitHub. The build p

Re: [Discuss-gnuradio] [EXT] Re: Python3 or still Python 2.7?

can thus avoid the seemingly-endless irritations of dependency / incompatibility issues. Thanks in advance, Aaron -Original Message- From: Philip Balister Sent: Monday, June 17, 2019 12:19 PM To: Chesir, Aaron M. ; Geof Nieboer ; Discuss-gnuradio@gnu.org Subject: [EXT] Re: [Discuss

[Discuss-gnuradio] Python3 or still Python 2.7?

Will GNUradio migrate to Python3.X, or will it remain with Python 2.7? The reason I ask is that (for reasons that unclear), there are syntax differences between the two, and Python 3 is *not* backward compatible for some of them. Aaron -Original Message- From: Discuss-gnuradio On Beh

Re: [Discuss-gnuradio] [EXT] Filter error

Sneha, You did not present the configuration page of the UHD USRP block. In any case, whenever a complaint refers to a frequency not being at or below half the sample rate, it means that the system thinks that you are attempting to either transmit or receive a signal at a frequency that is not

Re: [Discuss-gnuradio] [EXT] Re: complaints about missing volk.h

-comedi -- * gr-qtgui -- * gr-video-sdl Why would GRC and the QT GUI be disabled? Thanks for your help, Aaron -Original Message- From: Discuss-gnuradio On Behalf Of Chesir, Aaron M. Sent: Wednesday, May 29, 2019 9:11 AM To: Müller, Marcus (CEL) Cc: discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] [EXT] Re: complaints about missing volk.h

Marcus (CEL) Sent: Tuesday, May 28, 2019 4:59 PM To: Chesir, Aaron M. ; discuss-gnuradio@gnu.org Subject: Re: [EXT] Re: [Discuss-gnuradio] complaints about missing volk.h Please stay on the mailing list. Running make without successfully running CMake is meaningless. Also errors pertaining to t

[Discuss-gnuradio] complaints about missing volk.h

Folks, I am trying to install GNUradio from source: 1. I downloaded a copy of the gnuradio master repository into my local folder /home/xroot/GNUradio2/, 2. I created a subdirectory called "build", 3. within that sub-directory, I can execute "cmake ../". When I execute "make", I ke

[Discuss-gnuradio] Need help with gr-eventstream

Folks, I am using the gr-eventstream package in GNUradio, and I need help with the EventStream Source block. This is a block that takes a PDU as a message input and produces a data stream as an output. My problem is this: I am trying to feed the data stream output to a USRP Sink as an input, su

[Discuss-gnuradio] problems installing BOOST

Folks, I am trying to get my GNUradio Companion UHD Source to recognize a USRP B210 connected on a USB port of my CentOS 7.0 laptop. GR complains that it cannot find the device. Following the Internet advice, I decided to (re-)installed my UHD code from source. I followed the advice exactly, bu

Re: [Discuss-gnuradio] Need to install PyQt4.Qwt5

Folks, Never mind. I found some site that has download & installation instructions. Do any of you have any documentation on the “trigger rising edge event” block? Thanks, Aaron From: Chesir, Aaron M. Sent: Monday, April 29, 2019 12:59 PM To: discuss-gnuradio@gnu.org Subject: Need to ins

[Discuss-gnuradio] Need to install PyQt4.Qwt5

Folks, I am running CentOS, and am trying to run a flowgraph containing a “trigger rising edge event” block. In my attempt to understand this block, the Internet directed me to the only descriptive page available: An attempt at a tutorial by the inventor of the block, at the following URL: ht

[Discuss-gnuradio] GNUradio installation problems (UHD? Python?)

Folks, I do not know if this is the correct forum for this plea for help, but for now, I do not know of another choice: I tried installing GNUradio on my Centos 7 laptop, using PyBombs. As you can see from the attached, it ran quite far but then collapsed. The error messages all refer to some

Re: [Discuss-gnuradio] [EXT] Re: Need support for USRP2

p. Thanks, Aaron From: Marcus D. Leech Sent: Tuesday, April 2, 2019 9:34 AM To: Chesir, Aaron M. ; discuss-gnuradio@gnu.org Subject: Re: [EXT] Re: [Discuss-gnuradio] Need support for USRP2 On 04/02/2019 09:20 AM, Chesir, Aaron M. wrote: When I generate a known good signal in the ISM band (902 M

Re: [Discuss-gnuradio] [EXT] Re: Need support for USRP2

: Discuss-gnuradio On Behalf Of Marcus D. Leech Sent: Tuesday, April 2, 2019 9:06 AM To: discuss-gnuradio@gnu.org Subject: [EXT] Re: [Discuss-gnuradio] Need support for USRP2 On 04/02/2019 09:00 AM, Chesir, Aaron M. wrote: Folks, Apparently the USRP2 is no longer supported by GNUradio Companion

[Discuss-gnuradio] Need support for USRP2

Folks, Apparently the USRP2 is no longer supported by GNUradio Companion. Do any of you have the source files that would allow one to use gr_modtool to build a GRC block for the USRP2: One to transmit and one to receive? Thanks, Aaron From: Discuss-gnuradio On Behalf Of Neel Pandeya Sent:

Re: [Discuss-gnuradio] Strange "UUUU" pattern

receiving my signal. Aaron From: Chesir, Aaron M. Sent: Friday, March 15, 2019 10:21 AM To: discuss-gnuradio@gnu.org Subject: Strange "" pattern Folks, I have a simple QPSK modulator feeding its output into the input of my USRP transmitter. I notice two oddities: 1.

[Discuss-gnuradio] gr_modtool for Windows?

Folks, Is there a way to install gr_modtool for Windows (10) ? Thanks in advance, Aaron Aaron Chesir The MITRE Corporation 200 Valley Road Mount Arlington, NJ 07856 w: (973) 810-0612 c: (908) 380-5798 ache...@mitre.org "Ignorance is Bliss, but Knowledge is Power" ___

[Discuss-gnuradio] How NOT to write a GRC block?

Folks, As part of my GNUradio/GRC training, I am reviewing Tom Rondeau's August 24, 2015 presentation "How Not To Write A Block". I would like to go through its paces to learn how to write good blocks. Unfortunately, I do not see any way of accessing the original GRC source file which he uses a

[Discuss-gnuradio] need example Costas loop code

Folks, I am going through a series of on-boarding projects using GNUradio, and one of the projects requires access to a copy of Python source code for an example of a Costas loop. Specifically, the project refers to a file "gr-digital/examples/examples_costas.py