Hello Matt,
I try to analize USRP2 schematic circuit and can't find model of RF transformer
T501 which is
located before U18 (DS90CP22).
Could you tell me model of that transformer?
Best Regards,
Den.
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Hi everyone,
Currently I have installed GNURadio3.2.2 software over Linux Fedora 12 by
following the instructions in
http://gnuradio.org/redmine/wiki/gnuradio/FedoraInstall.
I would like to work with USRP in a graphical design environment i.e. using
the Gnuradio Companion (GRC). I think GRC is
Hello,
I have a couple of (in fact more than that) questions, kindly answer
them asap:
How to use the option of --from-file in benchmark_tx.py?
I am using USRP1, gnuradio3.2.1 and RFX2400. Secondly how to use --log
option in benchmark_rx.py? From where the --from-file option reads the
input files a
Hello,
I have a couple of (in fact more than that) questions, kindly answer
them asap:
How to use the option of --from-file in benchmark_tx.py?
I am using USRP1, gnuradio3.2.1 and RFX2400. Secondly how to use --log
option in benchmark_rx.py? From where the --from-file option reads the
input files a
I'm afraid yes. These are the last two line in the general_work ()
consume_each(noutput_items);
return noutput_items;
I am actually suspicious about the makefile.am and library integration
stuff, can anybody check this for me please?
libgnuradio_mypackage_la_LDFLAGS = \
$(NO_UN
sos!
i want to realize a 2*2 mimo simplex communication system .since rfx
daughterboards can transmit/receive 2 complex IO signals, i thought 2 usrp and
4 rfx_daughterboards is enough for me .but now i am wonfering whether usrp can
transmit/receive multiple signals simultaneously.could somebody
3 - Measure the amplitude of the TX DC offset as received by the RX (in
this case at -1 MHz). Iteratively adjust your I TX DC offset number
until you get to the lowest power you can see. Then do the same for Q.
If it still isn't low enough, do I again.
Matt
Hi Matt,
Are the settings for
Hi
I have implemented multi-antennas for receiving using grc dual source but
when i set the bitrate above 1M it start displaying "Uo Uo" which i guess is
indication of overflow and it doesn't receive anything also. I am using
usrp1 with rfx2400 daughter card. Kindly help me with my problem.
__
On 06/01/2010 07:49 AM, Hassaan Ajaz wrote:
> Hi
>
> I have implemented multi-antennas for receiving using grc dual source
> but when i set the bitrate above 1M it start displaying "Uo Uo" which
> i guess is indication of overflow and it doesn't receive anything
> also. I am using usrp1 with rfx240
Muhammad Rizwan-3 wrote:
>
> Hello,
> I have a couple of (in fact more than that) questions, kindly answer
> them asap:
> How to use the option of --from-file in benchmark_tx.py?
> I am using USRP1, gnuradio3.2.1 and RFX2400. Secondly how to use --log
> option in benchmark_rx.py? From where the
Dear all,
An runtime error came out when I run my python prgram:
File "/home/john/gnuradio/gr-iono/usrp_source_c.py", line 16, in __init__
gr.io_signature(1,1,gr.sizeof_gr_complex))#output signiture
File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/hier_block2.py",
line 42, in __
You are seeing the lower bound clipping in the nlog10 block. Try looking
at it with the scope sink, you should see some bits twiddle in the wind.
-Josh
On 05/31/2010 03:03 PM, Marcus D. Leech wrote:
I'm trying to "carve off" about 250Khz of bandwidth around 38.5MHz,
(actually any frequency
http://www.youtube.com/watch?v=19BWJQ8kjrw
Did you follow? http://gnuradio.org/redmine/wiki/gnuradio/GNURadioCompanion
-Josh
On 06/01/2010 01:14 AM, seifi wrote:
Hi everyone,
Currently I have installed GNURadio3.2.2 software over Linux Fedora 12 by
following the instructions in
http://gnurad
On Tue, Jun 1, 2010 at 07:52, Yan Nie wrote:
> An runtime error came out when I run my python prgram:
> File "/home/john/gnuradio/gr-iono/usrp_source_c.py", line 16, in __init__
> gr.io_signature(1,1,gr.sizeof_gr_complex)) #output signiture
> File "/usr/local/lib/python2.5/site-packages/
On Tue, Jun 01, 2010 at 09:39:47AM -0700, Johnathan Corgan wrote:
> On Tue, Jun 1, 2010 at 07:52, Yan Nie wrote:
>
> > An runtime error came out when I run my python prgram:
> > File "/home/john/gnuradio/gr-iono/usrp_source_c.py", line 16, in __init__
> > gr.io_signature(1,1,gr.sizeof_gr_comp
On 06/01/2010 03:41 AM, Charles Brain wrote:
3 - Measure the amplitude of the TX DC offset as received by the RX
(in this case at -1 MHz). Iteratively adjust your I TX DC offset
number until you get to the lowest power you can see. Then do the same
for Q. If it still isn't low enough, do I again.
(1) % ../../configure
checking build system type... i386-apple-darwin9.8.0
checking host system type... i386-apple-darwin9.8.0
checking target system type... i386-apple-darwin9.8.0
checking for git... /opt/local/bin/git
checking existence of git version control directory... ok
checking git descri
(1) % ../../configure
checking build system type... i386-apple-darwin9.8.0
checking host system type... i386-apple-darwin9.8.0
checking target system type... i386-apple-darwin9.8.0
checking for git... /opt/local/bin/git
checking existence of git version control directory... ok
checking git descri
On Tue, Jun 1, 2010 at 09:50, Michael Dickens wrote:
> checking git description of current commit... cut: illegal option -- -
> ../../configure: line 3672: test: too many arguments
> v3.3.0-rc3-0-g944a8b6f
This is from config/gr_git.m4, which I was updated in rc3 with
processing to extract vario
Sorry for the double post; strange internet goings-on down here.
Nothing has changed about my setup w/r.t. 'cut' or anything else.
'which cut' returns '/usr/bin/cut' which is supplied by Darwin.
'which date' returns '/bin/date' which is also Darwin -- this issue
has been around for a while no
On Tue, Jun 1, 2010 at 10:31, Michael Dickens wrote:
> Nothing has changed about my setup w/r.t. 'cut' or anything else.
>
> 'which cut' returns '/usr/bin/cut' which is supplied by Darwin.
>
> 'which date' returns '/bin/date' which is also Darwin -- this issue has been
> around for a while now, w
On 06/01/2010 11:38 AM, Josh Blum wrote:
> You are seeing the lower bound clipping in the nlog10 block. Try
> looking at it with the scope sink, you should see some bits twiddle in
> the wind. -Josh
II puut 40dB of 50MHz-low-pass-filtered gain in front of the Basic_RX,
and now it's "rational". :-)
go with the dual usrp source in grc, setup the antennas and sides
correctly and it should work :-)
-josh
On 06/01/2010 11:12 AM, Marcus D. Leech wrote:
On 06/01/2010 11:38 AM, Josh Blum wrote:
You are seeing the lower bound clipping in the nlog10 block. Try
looking at it with the scope sink,
On 06/01/2010 02:47 PM, Josh Blum wrote:
> go with the dual usrp source in grc, setup the antennas and sides
> correctly and it should work :-)
>
> -josh
H, OK. But this is a *single* BASIC_RX card. Is that still going
to work?
--
Principal Investigator
Shirleys Bay Radio Astronomy Consort
(1) configure.ac:296
BUILD_DATE=`date -R -u`
The '-u' works ("Display or set the date in UTC (Coordinated
Universal) time"), but there is no "-R" option to Darwin's built-in
'date'. What does the '-R' option specify? Maybe there's another way
to do it on Darwin that's more compa
On Tue, Jun 1, 2010 at 11:47, Josh Blum wrote:
> go with the dual usrp source in grc, setup the antennas and sides correctly
> and it should work :-)
I think he's using a USRP2. Isn't the dual source USRP1 only?
What he's asking for is a dual, coherent DDC for the I and Q inputs of
a BasicRX i
On 06/01/2010 03:15 PM, Johnathan Corgan wrote:
>
> I think he's using a USRP2. Isn't the dual source USRP1 only?
>
> What he's asking for is a dual, coherent DDC for the I and Q inputs of
> a BasicRX in a USRP2. This is a common enough request that I think it
> would be useful to put into the st
On Tue, Jun 1, 2010 at 12:02, Michael Dickens wrote:
> BUILD_DATE=`date -R -u`
>
>
> The '-u' works ("Display or set the date in UTC (Coordinated Universal)
> time"), but there is no "-R" option to Darwin's built-in 'date'. What does
> the '-R' option specify?
>From the manpage:
-R, --rfc
> From: Marcus D. Leech
> Subject: Re: [Discuss-gnuradio] USRP with Basic_RX
> To: "Johnathan Corgan" ,
> Discuss-gnuradio@gnu.org
> Date: Tuesday, June 1, 2010, 2:32 PM
> On 06/01/2010 03:15 PM, Johnathan
> Corgan wrote:
> >
> > I think he's using a USRP2. Isn't the dual
> source USRP1 only?
>
> Also, what version of GNU Radio are you using?
> (I seem to remember we made a change that produced a more informative
> message in this case.)
>
> Eric
Thank you so much for the reply. I'm using GNU Radio 3.2 svn.
I've another question related to the received data. I'm trying to capture the
On Tue, Jun 1, 2010 at 12:52, Johnathan Corgan
wrote:
> Feel free to suggest an alternative way of doing this test. My
> script-fu is not my greatest asset :-)
I have a solution for this using awk (thanks Jordan):
$ echo '1-2-3-4' | awk -F- '{print NF}'
4
Can you test Darwin's 'awk' for this?
I'm interested in demodulating the simple PPM signal commonly used for
RC aircraft control in the 72 MHz band. While searching, I came across
a post to this list back in 2005 where Chuck Swiger linked to a page
that looked interesting, but the page isn't up and archive.org doesn't
go that deep.
D
On Jun 1, 2010, at 2:38 PM, Johnathan Corgan wrote:
$ echo '1-2-3-4' | awk -F- '{print NF}'
4
Can you test Darwin's 'awk' for this?
the '$' line returns exactly '4' ... I guess that's good?
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On Jun 1, 2010, at 1:52 PM, Johnathan Corgan wrote:
From the manpage:
-R, --rfc-2822
output date and time in RFC 2822 format. Example: Mon,
07 Aug 2006 12:34:56 -0600
Can we instead use something like:
$ date -u +"%a, %d %b %Y %R:%S"
which isn't quite RFC 2822 compliant since i
On Tue, Jun 1, 2010 at 14:46, Michael Dickens wrote:
> Can we instead use something like:
>
> $ date -u +"%a, %d %b %Y %R:%S"
This works.
> Doing "grep -r BUILD_DATE ." from the top-level
> directory, I think, shows that this variable isn't even used ... yes?
It is in gnuradio-core/src/lib/gen
With the change in 'date' and using 'awk', I still got the python dyld
load error, which I tracked down to the SWIG libraries. Doing 'make
clean' there and then 'make' did the trick. !...@#$% fragile SWIG stuff.
- MLD
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Discuss-gnuradio maili
The USRP2 FPGA image can now be built with ISE 12.x. ISE 11.x probably
also works, but since 12 is a free upgrade from 11, I suggest you use
12. Everything still works on ISE 10.1.03 as well.
One additional change is that both the plain (Raw Ethernet) and UDP
versions (for UHD) are in the
Hi,
Try this:
./benchmark_tx.py -f 2.45G -r 512k --from-file=Apress.pdf
I think this will be work.
Fisheep
Muhammad Rizwan-3 wrote:
>
> Hello,
> I have a couple of (in fact more than that) questions, kindly answer
> them asap:
> How to use the option of --from-file in benchmark_tx.py?
> I a
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