Dear all,
I am testing tunnel.py in the narrowband folder, the
configuration is as follows:
OS: ubuntu 11.10
Gnuradio: latest
UHD:latest
USRP 1
RFX400
I set up two machines and do following the readme step by step.
When i ping machine B from A, A shows it has sent the ARP request, but
Hi Francisco - The code in question is, as the error says, at line 106 of the
Python file "ofdm.py":
self.preambles = digital_swig.ofdm_insert_preamble(self._fft_length,
padded_preambles)
This code calls the C++ code found in the file digital_of
Hi,
I was trying to use the OFDM Mod block to create a OFDM signal with FFT
size=8192, occupied tones=6818 and CP=2048
However I keep getting this error:
File "/usr/local/lib/python2.7/dist-packages/gnuradio/digital/ofdm.py",
line 106, in __init__
padded_preambles)
File
"/usr/local/lib/p
I think I can clarify things a bit. The WBX and SBX default to what is
called direct conversion or homodyne mixing (see
http://en.wikipedia.org/wiki/Direct-conversion_receiver). I'm not sure
about this, but also if you offset the LO as per Nick's link, you
effectively make those boards do superhete
Broadcast FM has a channel bandwidth of 150 kHz, so a sampling rate of 200 or
256 ksps should work fine. Don't confuse the sampling rate of the zero-IF data
with the sampling rate of the front-end, which is 64 msps (USRP1) or 100 msps
(USRP2).
The UHD API tends to hide this. In the old classic
Hi Nick,
Thanks for your reply.
But I am not sure whether I understand what you said. My understanding is
that the WBX converts RF signal into baseband signal directly, while for
TVRX2, the RF signal is converted into low IF signal firstly by TVRX2 and
then converted into basebad signal by USRP's
On Wed, Jul 11, 2012 at 10:07:09AM +0200, Martin Braun (CEL) wrote:
> What is confusing is the 'omega' parameter, I must admit, because it's
> not actually connected (it doesn't do anything). Now if you think about
> a PSK Rx for a second, you /might/ expect an AGC, and I'm guessing
> that's where
On Tue, Jul 10, 2012 at 11:40:00AM -0500, Javier M. Suarez wrote:
> I am working with DPSK mod and demod blocks. I would like to know if anyone
> knows what is the meaning of the parameters in DPSK demod. I've looked for
> them
> but I havent found anything.
Hi Javier,
assuming you know how a PS
