DiX wrote:
The problem is I have to use relatively high bit rate on these tx and rx
paths. The demic rate should be <=16, and interp rate <=32. When I run the
code with decim rate = 16 interp rate = 32, I keep receiving uO. My
questions are : what's the max rate the USRP can support in this
Hi,
I am a newbie to USRP, and still struggling to get it working on my windows
machine. I am trying to use cygwin. I reckon that many ppl have already
acquired and tracked GPS on USRP. Waht I want to do is to capture GPS IF
samples (e.g. at IF=5 MHz) and use a software receiver to process thos
Hi,
I am currently using USRP to do two-way relaying between d'b A and d'b B
(FLEX2400). The graph looks like
rx_a -> tx_b
rx_b -> tx_a
Since there are one rx and one tx paths sharing the TX/RX port. The port
is used in time-multiplexing way. When I get something on rx_b, I
set_
On Thu, Feb 28, 2008 at 06:12:33PM -0800, Eugene Grayver wrote:
> Hello,
>
> Is there any documentation of the new C++ only gnuradio framework? I'd
> like some insight into the philosophy behind it. E.g. why can there only
> be one top level block? Consider an example:
The one top block cons
Hello,
Is there any documentation of the new C++ only gnuradio framework? I'd
like some insight into the philosophy behind it. E.g. why can there only
be one top level block? Consider an example:
I have a transmitter and a receiver. The two are completely independent.
Why can't each one be
On 2008-02-25 14:10, Eric Blossom wrote:
> The code doesn't support S24_3LE because when we wrote it, we didn't
> have any cards that used that format, and it wasn't obvious (to me)
> exactly how the format was represented. It would be great if you
> could sort this out and submit a patch with the
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
George Nychis wrote:
> it seems to me like you're using antennas, you can try coax to isolate
> the problem maybe you're getting interference at 2.4GHz. But answer
> Eric's questions too.
With suitable attenuation of course -- I think Matt says a
On 2/27/08, Richard Clarke <[EMAIL PROTECTED]> wrote:
> Before I go ahead and try to implement an auto calibration routine for
> the Rx frequency offset of the receive subsystem on the RFX400/USRP, I
> was wondering if anyone else had already implemented something similar,
> or had any pointer
For the AM band I am not using an antenna.
For the 2.4GHz band I am using a 1/4 wave whip antenna.
Is there a better way to prove that the radio is detecting a signal?
Eric Blossom wrote:
> On Thu, Feb 28, 2008 at 06:51:45PM +0100, Rana Basheer wrote:
>> > The LFRX only covers 0 to 30 MHz.
>> >
On 2/28/08, sriram s <[EMAIL PROTECTED]> wrote:
> ImportError: libgnuradio-core.so.0: cannot open shared object file: No such
> file or directory
You likely need to run:
$ sudo ldconfig
...in order for the system to "learn" the new libraries that have been
installed.
--
Johnathan Corgan
Corga
Hello everyone,
I'm getting this error while importing gnuradio
packages.
>>> from gnuradio import gr
Traceback (most recent call last):
File "", line 1, in ?
File "/usr/local/lib/python2.4/site-packages/gnuradio/gr/__init__.py", line
27, in ?
from gnuradio_swig
On Thu, Feb 28, 2008 at 06:51:45PM +0100, Rana Basheer wrote:
> Good point. However, we have the same issue in the AM band on the LFRX
> and in the 2.4G range with the RFX2400.
> i.e.:
> python ./gr-utils/src/python/usrp_fft.py -R B -f 1.44M -d 128
> #produces the same results in AM
>
> Moreover,
Eric Blossom wrote:
On Thu, Feb 28, 2008 at 12:51:18PM +0100, Crespi Floriana wrote:
Hi,
I have a problem with OFDM system.
I transmit OFDM signal at 2.4 GHz, but I receive half of the total packets.
Moreover, only half of the packets received are correct.
CRC controller is perfect but i want
ahhh sorry, wrong thread.
George Nychis wrote:
Have you tried using coax to isolate the problem?
- George
Rana Basheer wrote:
Good point. However, we have the same issue in the AM band on the LFRX
and in the 2.4G range with the RFX2400.
i.e.:
python ./gr-utils/src/python/usrp_fft.py -R B -f
Have you tried using coax to isolate the problem?
- George
Rana Basheer wrote:
Good point. However, we have the same issue in the AM band on the LFRX
and in the 2.4G range with the RFX2400.
i.e.:
python ./gr-utils/src/python/usrp_fft.py -R B -f 1.44M -d 128
#produces the same results in AM
M
Good point. However, we have the same issue in the AM band on the LFRX
and in the 2.4G range with the RFX2400.
i.e.:
python ./gr-utils/src/python/usrp_fft.py -R B -f 1.44M -d 128
#produces the same results in AM
Moreover, we are not able to detect any transmitting devices with the
USRP.
Eric Bl
On Thu, Feb 28, 2008 at 04:54:59PM +0100, Rana Basheer wrote:
> I am attempting to use this receiver to analyze signals in the AM/FM
> bands. However, I have had no such luck.
> Since the sound card is not working on my machine I cannot attempt to
> output to the sound card.
>
> Here are some of c
On Thu, Feb 28, 2008 at 12:51:18PM +0100, Crespi Floriana wrote:
> Hi,
> I have a problem with OFDM system.
> I transmit OFDM signal at 2.4 GHz, but I receive half of the total packets.
> Moreover, only half of the packets received are correct.
> CRC controller is perfect but i want a ber estimate,
On 2/28/08, Michael Dickens <[EMAIL PROTECTED]> wrote:
> If building in a separate directory from the source (e.g. "mkdir
> build; cd build; ../configure; make; make check"), then the QA for WAV
> doesn't work because the input file found on line 37 is hard-wired to
> "./" ... which of course w
If building in a separate directory from the source (e.g. "mkdir
build; cd build; ../configure; make; make check"), then the QA for WAV
doesn't work because the input file found on line 37 is hard-wired to
"./" ... which of course won't be the correct directory since the
build is done elsew
I am attempting to use this receiver to analyze signals in the AM/FM
bands. However, I have had no such luck.
Since the sound card is not working on my machine I cannot attempt to
output to the sound card.
Here are some of commands I have tried:
# FFT centered near a known FM station at 89.7MHz
.
Dear all,
What is the TVRX front end sensitivity?
Thanks and best regards,
Pierre JALLON (PhD)
CEA LETI - MINATEC
Laboratoire Communications Numériques et Algorithmes
LETI/DCIS/SASTI/LCNA
17 rue des Martyrs
38054 Grenoble cedex 09
Tél : + 33 4 38 78 27 59
Fax : +33 4 38 78 65 86
Hi,
I have a problem with OFDM system.
I transmit OFDM signal at 2.4 GHz, but I receive half of the total packets.
Moreover, only half of the packets received are correct.
CRC controller is perfect but i want a ber estimate, so I change the
payload (binary file) and I receive check bit by bit.
The
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