Matt Ettus wrote:
Sounds like a very strange encoding.
It's very similar to FFSK. A nice feature of these formats is you don't
have to worry about polarity.
-rick
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Dong Li-
> :
> :
> We've checked the interface of USRP, its SMA Female, and nearly all
> the antenna's interface for wireless which are sold in Fry's
> Electronics is SMA Reverse Plug. So I guess a adapter from SMA Male to
> SMA Reverse Jack will connector the USRP's RF end to an antenna.
> Is any
On 7/19/07, Dong Li <[EMAIL PROTECTED]> wrote:
We've checked the interface of USRP, its SMA Female, and nearly all
the antenna's interface for wireless which are sold in Fry's
Electronics is SMA Reverse Plug. So I guess a adapter from SMA Male to
SMA Reverse Jack will connector the USRP's RF end
Hi,
I tried to use my gnuradio catch some radio signals in the air with
the script ./gnuradio-examples/python/usrp/usrp_wfm_rcv.py, but all we
heard is just some noise in FM frequency band(about 90MHz~110MHz), so
we guess maybe need an antenna to get a stronger radio signal.
our USRP has two daug
Jiri Pittner wrote:
> Hi,
>
> did somebody try to use gnuradio for receiving DRM (Digital Radio Mondiale)?
> It seems to me that neither M-QAM demodulation nor the apropriate audio codec
> is presently implemented in gnuradio, however, the DRM program "dream" has
> an option --fileio, which should
Have you looked at the usrp_rx_cfile.py file? It captures rx to a file.
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Reid N Kleckner wrote:
> Hey all,
>
> I'm looking at using the FPGA on the USRP to improve the performance in some
> of
> what my lab is doing. To learn about the Verilog code already written for the
> FPGA, I'm trying to do phase recovery with the Costas loop at the end of the
> rx_chain. Firs
Kshitij Kumar Singh wrote:
> As a part of some research work on cooperative communications in wireless
> networks, I had decided to use
> the USRP as one the of my implementation platforms. I used the tutorials by
> D. Shen as a reference. There are, however , some specific problems I need
> help
I'm using TortoiseSVN to access gnu radio SVN, when I
attempt to download usrp.pcb, tortoiseSVN gives me these error messages
PROPFIND request failed on '/svn/usrp-hw/trunk/usrp/usrp.pcb'
PROPFIND of '/svn/usrp-hw/trunk/usrp/usrp.pcb': 403 Forbidden
(http://gnuradio.org)
I haven't any problem wi
Hi Pratik,
I hope this would help you
http://lists.gnu.org/archive/html/discuss-gnuradio/2006-04/msg00196.html
regards,
Tarun
On 7/18/07, pratik hetamsaria <[EMAIL PROTECTED]> wrote:
hi..
I want to make the usrp function as a relay for audio files.
Apart from working on rx_voice.py for gett
Hello,
I am very new to GNU radio and USRP and have been using the functions
usrp_siggen.py and usrp_fft.py to transmit and display various functions,
such as sine waves. When I use usrp_fft.py I am able to get the spectrum on
the gui and see a nice impulse for a sine wave, but is there a way t
Thanks David,
I was looking to store the decimated samples(Would be quite a
problem storing raw samples at 64 MHz :) coming in through the USB.) This
is definitely helpful.
@Zhifeng , I was working on some cooperative communications protocol
(honestly, just a fancy multi-hop prototyp
Thanks for the responses.
I have used twice the interpolation number as the decimation number that is
used to record or receive the data.
I did not understand this part:
"Secondly, there is likely frequency offset between your original
transmitter and the USRP on receive, as well as between the
Max Moser wrote:
> Hi there, i research some rf stuff and did it so far with a radio
> scanner and a soundcard, but lately we have aquired now a fine
> hardware with the right boards. So i wanted to start to port this to
> gnu radio.
> It seems to be a miller encoding on top of the FM/FSK signal.
Hey all,
I'm looking at using the FPGA on the USRP to improve the performance in some of
what my lab is doing. To learn about the Verilog code already written for the
FPGA, I'm trying to do phase recovery with the Costas loop at the end of the
rx_chain. First of all, is this a good project? It
Hello:
Does anyone know the clock speed of master_clk, serial_clk and tx_clk?
Which one is fastest and which one is slowest?
Leo
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Eric-
> > > The LFRX has two separate antenna inputs, supplied to Vin-A and
> > > Vin-B. These are not I-Q data. USRP board FPGA logic would apply
> > > one mixer or two (30 MHz or less).
> >
> > [...]
> >
> > > The RFX2400 mixes with a 2.4 GHz osc and creates one set of I-Q 65
> > > MHz range s
On Thu, Jul 19, 2007 at 06:30:57AM -0700, Johnathan Corgan wrote:
> Jeff Brower wrote:
>
> > The LFRX has two separate antenna inputs, supplied to Vin-A and
> > Vin-B. These are not I-Q data. USRP board FPGA logic would apply
> > one mixer or two (30 MHz or less).
>
> [...]
>
> > The RFX2400 m
Johnathan-
> > The LFRX has two separate antenna inputs, supplied to Vin-A and
> > Vin-B. These are not I-Q data. USRP board FPGA logic would apply
> > one mixer or two (30 MHz or less).
>
> [...]
>
> > The RFX2400 mixes with a 2.4 GHz osc and creates one set of I-Q 65
> > MHz range signals, +
Jeff Brower wrote:
> The LFRX has two separate antenna inputs, supplied to Vin-A and
> Vin-B. These are not I-Q data. USRP board FPGA logic would apply
> one mixer or two (30 MHz or less).
[...]
> The RFX2400 mixes with a 2.4 GHz osc and creates one set of I-Q 65
> MHz range signals, +/-I on V
Hi there, i research some rf stuff and did it so far with a radio
scanner and a soundcard, but lately we have aquired now a fine
hardware with the right boards. So i wanted to start to port this to
gnu radio.
It seems to be a miller encoding on top of the FM/FSK signal. I
didn't find so far
2007/7/19, Vincenzo Pellegrini <[EMAIL PROTECTED]>:
thanks Trond,
doesn't
gr.file_source--->usrp_sink
constrain me at the maximum speed of my hard drive?
and what whould be the right flow graph setup for buffering via
gr.vector_source,
anything like:
gr.file_source--->data=gr.vector_sink
gr
2007/7/19, Vincenzo Pellegrini <[EMAIL PROTECTED]>:
hi,
can anyone point me towards some example code using gr-buffer?
I need to read a sample stream from HD (not very fast..)
and afterwards re send it towards the usrp significantly faster (8complex
Msps).
is gr-buffer a good candidate to do
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