One clarification - On Stacking the digital filters - the bandwidth does
not narrow - I misspoke. Naturally being a Hardware Guy I forgot that
the digital filters do no load each other, like analog filters can.
(I should never type before two cups of coffee in the morning - forgive
me). ;-)
l see the basic response
curve.
Hope this brief overview helps.
Steve Hageman
fine.
Generating:
"C:\Users\steve\Documents\GNU_Radio_Projects\Cookbook\RTL_SDR_SETUP\soapy_interface.py"
Executing: C:\Users\steve\radioconda\python.exe -u
C:\U
OK.
I have a simple Soapy SDR flowgraph using the RTLSDR block (attached)
Using Pathos it works, but there are some load errors in the console
when run (see below)
Executing:
C:\Users\steve\AppData\Local\Programs\Python\Python39\python.exe -u
C:\Users\steve\Documents
Hello Muhammad - It just dawned on me that you may not know the external
editor 'fix' for windows.
My previous email gave directions for how top find the "config.conf"
file. Once you find this you can edit the line that says: "editor = " to
something like t
Hello Muhammad - As for the editor selection issue, please see this post.
https://lists.gnu.org/archive/html/discuss-gnuradio/2024-07/msg4.html
As for the amplitude comparison. I would use the FFT block and then use an
embedded python block to find the difference between the FFT bins in ques
nd what is going on.
Hope this helps
Steve Hageman
Hi Muhammad - Marcus had a straightforward solution, but there is
another solution - which may or may not work for you and your exact
flowgraph.
You can directly take a FFT of the signal.
https://wiki.gnuradio.org/index.php/FFT
Then display it in a QT GUI Vector Sink - In the Vector Sink you c
regards,
Steve Hageman
after the file sink / source blocks finish with an external python program.
Hope this helps.
Steve Hageman
On 7/9/2024 6:34 AM, Fazal Muhammad Ali Khan via GNU Radio, the Free &
Open-Source Toolkit for Software Radio wrote:
Dear GNU Radio Community,
I am transmitting a text
called freq, the function
provided by the server will be called set_freq(new_freq).
documentation page: https://wiki.gnuradio.org/index.php/XMLRPC_Server
Hope This Helps - Steve Hageman
Solved.
Thanks to Ryan and Marcus for their help.
/Note: Some of these paths might be different depending on exactly how
you installed Radioconda, this is how it installed on my system./
Open a command window at,
|C:\Users\steve\radioconda\Scripts|
(Or where ever you find a ‘conda.exe’ in
ompanion
does not pick it up.
My install does make a '.gnuradio' directory at,
C:\Users\steve\.gnuradio
And there is a grc.conf file in it that lists things like: Most recently
used flowgraphs, etc.
If I similarly add a 'config.conf' file there - GNU Radio Companion does
not
ssing I need to update my GNURadio install somehow. I tried
uninstalling and reinstalling, and reinstalled UHD4.6 from source, but
still getting this error. Any suggestions on how to fix it?
Thanks,
Steve
Hi,
It's not clear to me why you would want to do this. As far as I can see,
the purpose of a Tayloe detector is to mix a real-valued RF signal with
a complex-valued local oscillator to arrive at an intermediate frequency
at or near zero frequency that can be sampled using a sound card. If
yo
doesn't need fixing.
Steve
On 19/1/22 1:31 am, Fabien PELLET wrote:
Hello,
When I put a signal generator that produces a sinwave at 1Khz and that
feeds an USRP Sink with a frequency center at 12MHz for example, I got
spurs at +/-32Khz, +/-64KHz and +/-96KHz at the output of my N210
(used
ference becomes less then
1/2 wavelength. Beyond that there's a 4th power law drop off.
https://en.wikipedia.org/wiki/Two-ray_ground-reflection_model
I hope this helps.
Steve Hubbard
vious response said, the centre frequency is zero. If you want
any other frequency, a complex mix is required. To help you understand
this you could try writing some code in Matlab, Octave or Python etc. to
implement a simple signal chain.
Regards,
Steve Hubbard
On 7/5/21 7:03 pm,
p
log4cpp.x86_64 : C++ logging library
Any ideas please?
Steve
shows that the missing parameter is 'decim'.
So it appears the wiki is incorrect. How can this be put right? Also, it
would help to be able to see what the Python base class is expecting but
I don't know where these are stored or documented. Any ideas?
Thanks,
Steve
possible to share documentation and/or code links?
Thank you in
advance
Steve JOUMESSI
oup buy
wiki page <https://github.com/softerhardware/Hermes-Lite2/wiki/Group-Buy> for
more details.
The Hermes-Lite 2.0 work with GNU Radio thanks to this work:
https://github.com/daniestevez/gr-hermeslite2
73,
Steve
kf7o
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https://www.astranis.com/
Thanks,
Steve Joseph
Astranis
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Hi Nicholas,
[1]
You will find explanations on the transmitter and
the receiver
here:
https://www.gnuradio.org/doc/doxygen/page_packet_comms.html [1]
Hope this helps you.
Best regards
Le 2018-10-28 17:00,
discuss-gnuradio-requ...@gnu.org a écrit :
> Send Discuss-gnuradio
mailing list sub
construction of the MAC, but it is built for the PHY OFDM 802.11 a /
b standard.
I want to know which blocks I have to modify to adapt the
MAC to my project. I am also looking for source code
documentation.
Thanks for your help.
Best regards
Steve JOUMESSI
DEMEFFO
Le 2018-10-25 18:00, discuss-gnuradio
I want to adapt the MAC of the gr-ieee802.11 project to a PPM physical
layer.
I want to know which blocks I need to adapt to my
project.
Thanks for your help
Best regards
Steve JOUMESSI
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Hi Cindy Zhang,
I think it's your device that can not deliver 50M
synchronously to the UHD. If possible up to the performance of your
device.
Best regards
Le 2018-09-12 18:00,
discuss-gnuradio-requ...@gnu.org a écrit :
> Send Discuss-gnuradio
mailing list submissions to
> discuss-gnuradio@gnu.
r * ', no destructor
found.
Thanks for your help.
Best regards
Steve JOUMESSI
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above case) ?
Thanks in advance!
Steve
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ign, simulation,
and debug environment. Apply online at www.astranis.com if interested!
Thanks,
Steve Joseph
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Hi mailing list,
I have a question regarding the Keep M in N block, which keeps M out of
every N samples. Is this the first M samples in every N which it retains
(or) is it every N/M ?
Thanks!
Steve
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constellation, but won't stay locked on it.
That probably means I don't have something right in GRC or there is an overlay
modulation that confuses the Costas loop phase locking. Until either my hybrid
hardware/GRC setup starts locking onto the XM signal there will be no Channel 1.
Stev
mission planning software.
Would be happy to discuss potential to share this and collaborate especially on
uplink side where we have yet to implement a full chain.
Steve
-Original Message-
From: discuss-gnuradio-bounces+steve.greenland=clyde-space@gnu.org
[mailto:discuss-gnuradio
it is trying to load b200 when it is a b210 (4 ch)? I read
that using uhd_usrp_probe with an address might work but unsure how to do this
without an IP address.
I have tried both powering through the USB only or providing 6V in case it is a
supply issue, noting in the second case a change in
if a rate of <= 0 is passed to the throttle ctor).
Regards
Steve
- -
The following changes since commit 9fb34ce4b3d9c524f687d2e6c106c971541d8921:
Merge branch 'maint' (2013-11-11 14:36:53 -0500)
are available in the git repository at:
g...@github.com:stiabhan/gnuradio.git
form to define a math.h that isn't the system one so the
following pull request renames math.h to math_utils.h and changes the
references to the old header to the new name.
Regards
Steve
--
The following changes since commit
54d3961bdaaa708152e33264b95759bab4d94c87:
Merge branch 'ma
=&search_and_display_db_button=on&db_id=97746&query=retrieval
Many thanks
Steve
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have to
experiment some more to find a solution that works. Thanks for the info.
On Sep 4, 2013, at 2:48 AM, Marcus Müller wrote:
> Hi Steve,
>
>> Worth it to submit an additional bug noting the fifo timeout for longer
>> set_command_time()? I think that it > is merely an
I was wondering if anyone could give some insight into how the
set_command_time() command handles the ack. I am having an issue where the
system/thread locks waiting for an ACK from a set_center_freq() or if the
set_command_time is far enough in the future then the fifo ctrl times out with:
On 05/19/2012 11:06 AM, Tom Rondeau wrote:
> Alright, but that sounds like it's in the right direction. You
> probably need to get a reference to the qApp and then execute that.
> Take a look at some of the Python examples and how they work with the
> qApp and then run the "exec_()" method with it
On 05/19/2012 08:41 AM, Tom Rondeau wrote:
> If you figure out what things need to be updated/fixed for use in C++,
> please send us a patch!
>
> Tom
>
>
If I can figure it out I will. There are two .h files from
.../build/gr-qtgui/lib that are needed. It compiles and I can create a
block of th
when they want/need to upgrade.
Please let me know what you think.
Thanks again.
Steve
--- On Mon, 8/1/11, Marcus D. Leech wrote:
> From: Marcus D. Leech
> Subject: [Discuss-gnuradio] New build-gnuradio
> To: Discuss-gnuradio@gnu.org, "Hugh and Irene Pett"
> Date: M
I have the same problem -- I'm going to be using a USRP2 outdoors in the shade
(not direct sunlight) for around six hours in Yuma, Arizona, where the daytime
temperatures are 100-110 degrees F now in July. Will the USRP2 be able to
operate under these high temperatures?
Check it out:
http://www
What is SDCC used for? I just want to sure that I understand this correctly. I
think it's used to compile the firmware that runs on the Xilinx MicroBlaze CPU
on the FPGA inside the USRP, USRP2, and USRP N200/N210. (all USRPs have FPGAs
inside with Xilinx MicroBlaze CPUs on them) Normally, you do
3.x? There must be some
new features or capabilities in SDCC 3 that would be useful to GNU Radio...
Steve McMahon
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yes? I
can't seem to find anything in gr-uhd to disable "full-duplex mode", and
can't really figure out where this mode is set in the UHD driver, either.
My true motivation for asking is that I'm having this same problem with my
N210s and RFX1800s. What I really
oard in full-duplex mode, the receive antenna
will always be set to RX2, regardless of the settings."
Steve
--
Steven Peters
Kuma Signals, LLC
www.kumasignals.com
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ock
codes as defined in the IEEE 802.11n standard, along with spatial
multiplexing. We've successfully tested these using the USRP1 in 2x2
systems.
Steve
--
Steven Peters
Chief Executive Officer
Kuma Signals, LLC
5926 Balcones Dr. Ste. 230
Austin, TX, 78731
512-879
txt
document, I would really appreciate it.
Thanks in advance.
Steve Joseph
On 04/10/2011 01:39 AM, Steve Joseph wrote:
>
> I am trying to save the output of a stream to a .txt file using the
> gr_file_sink block. After running the flowgraph, the .txt file either
> cannot be o
readable in
a standard editor? Am I using the block wrong somehow?
Thanks in advance.
Steve Joseph
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ython 2.7?
Thanks.
Steve McMahon
It's here! Your new message!
Get new email alerts with the free Yahoo! Toolbar.
http://tools.search.yahoo.com/toolbar/fea
Elvis Dowson:
I don't agree with your criticism of Marcus. He has been EXTREMELY helpful to
me, and has spent a lot of time helping many people on this list with GNU
Radio/USRP issues for a long time. Let's all keep this list focused,
respectful, and fair and unbiased.
Steve McMahon
in.
--- On Fri, 1/14/11, Marcus D. Leech wrote:
From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] The (in)famous channel 0 not receiving error
To: "Steve Mcmahon"
Cc: discuss-gnuradio@gnu.org
Date: Friday, January 14, 2011, 3:36 PM
On 01/14/2011 03:28 PM, Steve Mcmahon wr
ather than design an all-new
USRP N210?
That said, the N210 looks really nice. Will it support the raw Ethernet
interface currently used in the USRP2, or will it require the new UHD interface?
Steve McMahon
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David:
How did you generate the YouTube
video from your Linux machine??
Did you use recordMyDesktop??
(http://recordmydesktop.sourceforge.net/)
Thanks.
Steve McMahon
--- On Thu, 1/13/11, David L wrote:
> From: David L
> Subject: [Discuss-gnuradio] transient when changing valve stat
n them?
I'm using raw Ethernet now with a USRP2+WBX, so why would, when using GRC to
create a flowgraph, the interface change?
Thanks.
Steve McMahon
--- On Wed, 1/12/11, Marcus D. Leech wrote:
From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] The (in)famous channel 0 not receiving
MHz reference input.
You could also the use the 1 PPS input for your two USRPs.
Let me know if this helps.
Steve
--- On Mon, 1/10/11, Thomas H Kim wrote:
From: Thomas H Kim
Subject: [Discuss-gnuradio] Benchmark scripts
To: discuss-gnuradio@gnu.org
Date: Monday, January 10, 2011, 3:55 PM
All
Josh:
Do you mean that I should only worry about it only if I'm on Windows,
or do you mean that I should only see it only if I'm on Windows?
Why does it appear intermittently, and not every time?
Thanks.
Steve McMahon
--- On Mon, 12/20/10, Josh Blum wrote:
> From: Josh Blum
's causing it?
Thanks.
Steve McMahon
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it inputs complex values?
Steve McMahon
--- On Sat, 12/18/10, Marcus D. Leech wrote:
> From: Marcus D. Leech
> Subject: Re: [Discuss-gnuradio] SSB modulation with USRP2 Sink
> To: discuss-gnuradio@gnu.org
> Date: Saturday, December 18, 2010, 4:18 PM
> On 12/18/2010 04:07 PM
k. How can I do this?
Also, for some reason, the lower sideband is of a lower magnitude than the
upper sideband. Why is this? Shouldn't they be of equal magnitude?
Thanks for your help.
Steve McMahon
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Disc
e anything else I would need to do?
Would I be done at this point?
Thanks for your help.
Steve McMahon
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flowgraph using Gnuradio blocks?
Thanks.
Steve McMahon
--- On Fri, 12/17/10, Martin Braun wrote:
> From: Martin Braun
> Subject: Re: [Discuss-gnuradio] time to reconfigure a block in flowgraph
> To: discuss-gnuradio@gnu.org
> Date: Friday, December 17, 2010, 3:36 AM
> On Thu, Dec
to
execute? Do I need to to gr.lock() and gr.unlock() my flowgraph before changing
these kind of parameters? How can I change parameters every 100ms?
I'm running GNU Radio 3.3.0 on Linux.
Thanks for your help.
Steve McMahon
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arate thread instead?
Thanks for your help.
Steve McMahon
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e the USRP2 boards at
these temperatures? What is the lowest operating temperature for the USRP2
boards?
Thanks.
Steve McMahon
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Hello:
I have a USRP2 + WBX running with GNU Radio 3.3.0 on openSUSE 11.2.
I created a simple flowgraph using GRC, a Signal Source connected into a USRP2
Sink, used to generate a tone. I'm trying to setup a timer in the flowgraph so
that every 2 seconds, the tone flip-flops between 3 kHz and 6
ssage?
Thanks for your help.
Steve McMahon
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ate a tone. Is there any way to query the Signal Source for how many
samples it has created since the flowgraph started?
Thanks a lot.
Steve McMahon
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Hello:
I am writing a flowgraph using GRC. In the "Options" block, there is something
called "Realtime Scheduling", which can be On or Off. What does this do, under
the hood? When should you set it to On? When would you want to set it to Off?
Th
ies (i.e., 94.4 MHz, 94.6 MHz, 94.8 MHz, etc.)? Where are you located?
I am in Boston, Massachusetts, USA.
Steve McMahon
--- On Wed, 12/1/10, Bernardo Gonçalves wrote:
From: Bernardo Gonçalves
Subject: Re: [Discuss-gnuradio] flowgraph for commercial FM radio TX/RX
To: "Steve Mcmah
ut I'm a little lost.
Thanks for your help everyone.
Steve McMahon
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hon to set what
gets transmitted at the start of each interval duration? Any help would be very
much appreciated, as I am still somewhat new to GNU Radio and Python. Thanks
for your help, everyone.
Steve McMahon
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several numbers on this
mailist, such as -10 dBm and -15 dBm, so I'm making this post to get a
definitive answer. Thank you.
Steve McMahon
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-processing-techniques-for-software-radios-2nd-edition/11905545?productTrackingContext=search_results/search_shelf/center/3
Steve McMahon
--- On Sat, 11/27/10, John McKendry wrote:
> From: John McKendry
> Subject: Re: [Discuss-gnuradio] books about GNU Radio
> To: discuss-gnuradio@gn
y for sale?
Steve McMahon
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> > 3) I saw there was an actual gnuradio book, but looks
> like it was never
> > published. I'd be willing to buy this in PDF or
> ebook format; is it
> > avaiable?
Is this the book you're talking about?
Let me know if you can find a copy.
I would definitely buy it if I could find it.
http://ww
.
Now the clocks on my four USRP2 boards seem to be synchronized, so if (for
example) one board transmits a tone at 903.55 MHz, another board will see it at
903.55 MHz.
Please let me know if this helps.
Steve McMahon
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hat's going wrong here? I
used that second USRP2 a few weeks ago with a different daughterboard and it
ran fine, so I don't think that USRP2 is bad.
Is there something wrong with the WBX daughterboard? Am I doing something
wrong in GRC? Any ideas?
Any help would be GREATLY appreci
d so I want to survey the
GNU Radio community.
I would love to hear what people are using, and what people find to be
reliable. Thanks for your feedback, everyone!!
Steve McMahon
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he table on the webpage? Thanks a lot!!
http://code.ettus.com/redmine/ettus/projects/public/wiki/U2binaries
Steve McMahon
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deprecated in favor of
UHD? What are the advantages of UHD compared to raw Ethernet? What are the
disadvantages?
Thanks a lot for answering all these questions!!
Steve McMahon
--- On Thu, 11/11/10, Matt Ettus wrote:
> From: Matt Ettus
> Subject: [Discuss-gnuradio] Ettus Research Announc
p for the N220, N230, etc.? Thanks.
Steve McMahon
--- On Thu, 11/11/10, Matt Ettus wrote:
> From: Matt Ettus
> Subject: [Discuss-gnuradio] Ettus Research Announcements -- Nov 2010
> To: "gnuradio" , "usrp-us...@lists.ettus.com"
> , usrp-annou...@lists.et
Marcus:
Thanks for your help and feedback, and for the script.
I really appreciate you taking the time.
One more question: Since I am not a UHD user and I use my USRP2 with raw
Ethernet, which Git branch should I use?
Thanks again!
Steve McMahon
--- On Tue, 11/16/10, Marcus D. Leech wrote
you did NOT use GNU Radio 3.3.0, but rather you used the
latest branch in Git. What branch specifically did you use? I guess I will need
to do the same.
Fedora 14 uses gcc version 4.5.1, right?
Thanks.
Steve McMahon
--- On Tue, 11/16/10, Marcus D. Leech wrote:
> From: Marcus D. Lee
d how do I enable this input? Do I need to set anything in my flowgraph?
Thanks a lot!!
Steve McMahon
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f the GNU Radio from the
git repository, this problem is fixed. I was also told that the next version of
GNU Radio, version 3.3.1, will fix this problem.
Steve McMahon
--- On Sun, 11/14/10, Arya Santini wrote:
> From: Arya Santini
> Subject: [Discuss-gnuradio] gnuradio-3.3.0 Build Error O
eed to set anything in my flowgraph?
Thanks.
Steve McMahon
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station.
I appreciate your help.
Thanks.
Steve McMahon
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re-try with gcc-4.5.
Tom Rondeau mentioned that this issue will be fixed in GNU Radio 3.3.1. When is
it expected to be released?
Thanks a lot for your help everyone.
Steve McMahon
--- On Thu, 11/4/10, Tom Rondeau wrote:
> From: Tom Rondeau
> Subject: Re: [Discuss-gnuradio] gcc
in GNU
Radio 3.3.1. When is it expected to be released?
Thanks again for your help, everyone.
Steve McMahon
--- On Fri, 11/5/10, Thomas Spuhler wrote:
> From: Thomas Spuhler
> Subject: Re: [Discuss-gnuradio] gcc 4.5 and GNU Radio 3.3.0
> To: discuss-gnuradio@gnu.org
> Date: Frida
out my ideas and my setup!!
Steve McMahon
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onths?
4. The Gumstix Overo Water board uses OpenEmbedded Linux. Can GNU Radio work
under this distribution, or must I use Ubuntu on my Gumstix? (I don't even know
whether the Gumstix can run anything other than OpenEmbedded)
Thanks a lot for your help!!
Ste
n't have this problem in
openSUSE 11.2 (which bundles gcc 4.4.1 and Boost 1.39), but it is not working
for me with openSUSE 11.3 (which bundles gcc 4.5.0 and Boost 1.42). On this
particular machine, I need to run specifically openSUSE 11.3.
Any help would be very much appreciated.
Thanks
essary that the decimation value be any multiple of 4, between 4
and 512, inclusive?
Thanks again everyone.
Steve McMahon
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, or 1855.2 MHz, etc.? Must it be an
integer number of MHz? Can I specify the value down to a single Hz? Are there
limitations/rules as to what frequencies I can set a USRP2 sink block to be?
Thanks a lot for your help.
Steve McMahon
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were a sine instead of a cosine? Thanks again for your
help. I really appreciate your time.
Steve McMahon
--- On Wed, 11/3/10, Marcus D. Leech wrote:
> From: Marcus D. Leech
> Subject: Re: [Discuss-gnuradio] questions about USRP2 sink block and
> upconversion
> To: discuss-gnuradio@
r gcc 4.4.4 using my other internet-connected
computer, and then go onto my off-network machine and build it from source,
install it in /opt, and then use it separately from the default gcc 4.5.0 that
comes built-in with openSUSE 11.3? Any help is appreciated. Thanks.
Steve McMahon
--- On F
converted signal with tones at 901 MHz, 903 MHz, and 907 MHz,
then I simply set the "frequency" parameter of the USRP2 sink to 900 MHz,
right? How exactly does the USRP2 do the upconversion? What exactly does the
"frequency" parameter do?
I would really appreciate any he
need to convert MP3 to PCM. As long as you can open the MP3 file and read the
bits, then you should be able to transmit them.
Can you be more specific as to how the File Source block failed? What error(s)
do you see?
Steve McMahon
--- On Mon, 11/1/10, hafiz zimran wrote:
From: hafiz zimran
S
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