Hi!
I am facing problem with installing grc, so i decided to download from gnu
trunk which has grc available. When i put the following command
svn co http://gnuradio.org/svn/gnuradio/trunk gnuradio
I get the error
*
svn: OPTIONS of 'http://gnuradio.org/svn/gnuradio/trunk': Could not resolve
host
RE: USRP vs alternatives
Simple Software Radio Peripheral
http://oscar.dcarr.org/ssrp/index.php
SR-1/Software Radiohttp://volodya-project.sourceforge.net/SR/SR-1/sr1.php
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http://gnuradio.org/doc/doxygen/classgr__multiply__const__ff.html
The block has a method called set_k
just do my_block.set_k(new_constant)
-Josh
Karthik Vijayraghavan wrote:
Suppose I have myblock = gr.multiply_const_ff(var_value) sitting
somewhere in my flowgraph. I want the user to be able
On Fri, Sep 26, 2008 at 9:40 PM, Bill Stevenson
<[EMAIL PROTECTED]> wrote:
> bitrate=128M/interpolation rate/samples per symbol* bit per symbol
Through the powers of algebra:
A = B / C / D * E
Solve for C.
Brian
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Suppose I have myblock = gr.multiply_const_ff(var_value) sitting
somewhere in my flowgraph. I want the user to be able to change the
value of var_value by using a slider. I know how to make a slider, but
I am not able to find information on how to dynamically change the
block at runtime. One option
Yes, the final sampling rate of DAC is 128Msps which is fixed number. But what
is the default value for interpolation rate? As we know,
bitrate=128M/interpolation rate/samples per symbol* bit per symbol, while bit
per symbol could be known from modulation scheme, how to calculate
interpolation
Thanks should go to Jon Jacky, who identified the problem some time ago.
Paul
-Original Message-
From: Raul Siles [mailto:[EMAIL PROTECTED]
Sent: Friday, September 26, 2008 4:07 PM
To: Paul Mathews
Cc: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] GNU-Radio GUI applications fre
Hello Teka,
What OS/platform are you using? What is the value of your PYTHONPATH
environment variable?
Also, check that when you compiled GNU Radio, the USRP module was not discarded.
Regards,
--
Raul Siles
www.raulsiles.com
On Sat, Sep 27, 2008 at 12:58 AM, teka yemane <[EMAIL PROTECTED]> wrot
Paul, you rock
Changing the decimation factor (-n) to a bigger value (the default
value is 1) works like a charm and solves all my GUI freeze issues,
even within VMware.
I started with "-n 100" (as you suggested) for usrp_oscope.py, but it
is too much and the refresh rate is very slow. Then I
I have installed gnuradio but when I run a python code, I receive the following
error:
[EMAIL PROTECTED] python]# ./usrp_fsk4.py -F test.dat -p 1 >demod_text.txt
Traceback (most recent call last):
File "./usrp_fsk4.py", line 32, in
from gnuradio import gr, gru, usrp, optfir, eng_notation,
On Fri, Sep 26, 2008 at 6:10 PM, Bill Stevenson
<[EMAIL PROTECTED]> wrote:
> Thank you, Brian!
>
> Now i know how the interpolation changes, but if bitrate were set, how are
> interp/decim rate and
> samples-per-symbol derived respectively? Is there a default value for
> interpolation rate? Thanks!
Thank you, Brian!
Now i know how the interpolation changes, but if bitrate were set, how are
interp/decim rate and
samples-per-symbol derived respectively? Is there a default value for
interpolation rate? Thanks!!!
Bill
- Original Message
From: Brian Padalino <[EMAIL PROTECTED]>
To:
On Fri, Sep 26, 2008 at 4:00 PM, Bill Stevenson
<[EMAIL PROTECTED]> wrote:
> Hello, everybody!
>
> I am working on the demo file:
> gnuradio-examples/python/digital/benchmark_tx.py. In the file
> transmit_path.py, it is said "specify bitrate. samples-per-symbol and
> interp/decim will be derived."
Hello, everybody!
I am working on the demo file:
gnuradio-examples/python/digital/benchmark_tx.py. In the file transmit_path.py,
it is said "specify bitrate. samples-per-symbol and interp/decim will be
derived." How are interp/decim rate and samples-per-symbol derived
respectively? what is th
Hello all!
I wanna make sure the way to calculate the transmission bandwidth for USRP
system. As we know, the bitrate could be obtained based on bitrate=128/m/k,
where m is the interpolation rate and k is the samples per symbol(suppose we
use bpsk modulation), once we get bitrate, how to get th
I had a question along the same line.
Has anyone written code for other sources that can be used in place of
the usrp as the input source (besides the relatively low speed computer
sound interfaces)?
For example to replace
"self.u = usrp.source_c()"
with reference to some alternate high perfo
You will need a soundcard and then you set up an stereo source. I/Q at
baseband is delivered.
There is no "softrock interface" in gnuradio because there is no hardware to
control. It delivers a 100 kHz or so and this is centered on the crystal
frequency on the softrock.
In gnuradio-examples/pyt
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