Iam trying the OFDM modulation and loopback in grc and not able to see
modulated output and message signal in oscilloscope sink.grc codes are
attached for both.
can any one help me in buiding ofdm(mod, demod, loopback , ofdm transmit
to USRP sink and ofdm rx through another USRP source ) in grc
--
On 02/21/2010 07:15 PM, abbasi wrote:
Hi
Is there any type of automatic flow control scheme implemented in the usrp,
to prevent the buffer flooding.
if there is one please point me what its name.
regards,
The USRP1 uses USB flow control, and the USRP2 uses ethernet flow control.
Matt
Hi
Is there any type of automatic flow control scheme implemented in the usrp,
to prevent the buffer flooding.
if there is one please point me what its name.
regards,
--
View this message in context:
http://old.nabble.com/USRP-flow-control-tp27682364p27682364.html
Sent from the GnuRadio mailing
Sorry to resurrect an old thread, but I thought it a worthwhile addition.
A few months ago I posted that I'd created a CentOS / RHEL repository that
included GnuRadio. I'm personally running RHEL 5.4 x86_64 and have gnuradio
(latest stable) RPM installed.
info at:
http://blackopsoft.com/
it's a
Hi,
I have a 3rd party GNU Radio block of signal processing code that I would
like to wrap for use within GRC. This block uses a message sink (i.e a
pointer to a gnu radio message queue is passed into the block which appears
to then utilise the queue for inserting 'send frequency correction' value
Hello Brian,
Sorry it is not possible to get a screen shot at the moment mainly because I
have turned everything off for the day and not having a GPIB i/f on the
analyser I would have to find my video digitiser and take a snapshot
from the video out.
I can see the residual at 1 GHz it is jus
Great, thanks. Added it to the wiki
Dimitrios Symeonidis
"If you think you're too small to make a difference, try sleeping with
a mosquito!" - Amnesty International
On Sun, Feb 21, 2010 at 21:16, Josh Blum wrote:
> Subdevice0 is the antenna A, Subdevice1 is the antenna B. You can use both
> subd
Subdevice0 is the antenna A, Subdevice1 is the antenna B. You can use
both subdevice 0 and 1 at the same time on two different ddc inputs and
tune them separately. These subdevices are used as real inputs, and the
Q inputs to the ddc are set to zero.
The third possibility is to use subdevice2
On Sun, Feb 21, 2010 at 1:13 PM, Charles Brain wrote:
> Hello,
>
> I have been playing around with the USRP2, mainly to get a feeling for how
> much data I can pass across the Ethernet.
>
> I have noticed something odd
>
> When I use sig_source_c with a sample rate of 20 Ms/s
> and a frequency of
On 2/20/2010 7:43 PM, Srinivas wrote:
Hi Tom,
I tried increasing the bandwidth of the filter and also tried changing
the window type to KAISER, but it didn't improve on the offset error.
I am getting a constant frequency offset value "-10". Currently, I am
just compensating for the offset at
Hello,
I have been playing around with the USRP2, mainly to
get a feeling for how much data I can pass across the
Ethernet.
I have noticed something odd
When I use sig_source_c with a sample rate of 20 Ms/s
and a frequency of 1 MHz with the WBX board set to
1 GHz and the interpolation set t
Hi Matt,
I was wondering why the BasicRX and LFRX daughterboards seem to have 3
instead of 2 subdevices? This seems to be coming from
usrp/host/lib/db_boards.cc
Thank you
Dimitrios Symeonidis
"If you think you're too small to make a difference, try sleeping with
a mosquito!" - Amnesty Internatio
2010/2/21 ahsan liaqat :
> hi,
> i installed octave recently, and following the instructions on gnuradio.org
> i did following :
>
>
> octave:1> addpath("/home/ahsan/gnuradio/gnuradio-core/src/utils/")
> warning: addpath: Doesme/ahsan/gnuradio/gnuradio-core/src/utils/: No such
> file or directory
hi,
i installed octave recently, and following the instructions on gnuradio.org i
did following :
octave:1> addpath("/home/ahsan/gnuradio/gnuradio-core/src/utils/")
warning: addpath: /home/ahsan/gnuradio/gnuradio-core/src/utils/: No such file
or directory
please guide me regarding the mention
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