Forum: GNU Radio Exploring the world of GNU

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0a229e7e9ac5caa7e779da5913c0e7ca?d=identicon&s=25 Bari Bari (Guest)
on 2009-01-28 03:19
(Received via mailing list)
Hi
I have just started work on gnu project.
Initially i got basic concept of Python and now studying gnuradio
through
its website.can any body help me to give guidance about getting basic
knowledge so that I will be able to do some projects in this field. or
any
body have some basic programs with description  to understand.

Take care.
745d8202ef5a58c1058d0e5395a78f9c?d=identicon&s=25 Eric Blossom (Guest)
on 2009-01-28 06:41
(Received via mailing list)
On Wed, Jan 28, 2009 at 03:18:48PM +1300, Bari Bari wrote:
> Hi
> I have just started work on gnu project.
> Initially i got basic concept of Python and now studying gnuradio through
> its website.can any body help me to give guidance about getting basic
> knowledge so that I will be able to do some projects in this field. or any
> body have some basic programs with description  to understand.
>
> Take care.

Start here:

  http://gnuradio.org/trac/wiki

Note especially the GNU Radio FAQ and the USRP FAQ:

  http://gnuradio.org/trac/wiki/FAQ
  http://gnuradio.org/trac/wiki/UsrpFAQ

Download the code and build it:

  http://gnuradio.org/trac/wiki/Download
  http://gnuradio.org/trac/wiki/BuildGuide

Look at the examples in:

  gnuradio-examples

and some of standard utilities in:

  gr-utils

Assuming you've got a USRP, look at usrp_fft.py, usrp_oscope.py and
usrp_siggen.py

Most commands support a --help option.  Try using it.

Also read the README files contained in the source code.


We've got a list of suggested reading:

  http://gnuradio.org/trac/wiki/SuggestedReading


If you come up with questions, try to answer them with a web search
before posting your questions here.  We've answered a lot of questions
on this mailing list over the years...  The archives are well indexed by
google and friends.

Welcome!
Eric
0a229e7e9ac5caa7e779da5913c0e7ca?d=identicon&s=25 Bari Bari (Guest)
on 2009-01-29 00:17
(Received via mailing list)
Thanks for ur guadiance I ahave already installed GNUradio on ubuntu 8.1
from Synaptic packages  manager but I am not sure either any module or
library is missing.
The gnuradio version is 3.0.4 2ubuntu2.
I have checked many examples , these are working but when i run fm
example
like $python usrp_wfm_rcv.py -f 104.5
I received folowing messages:

1- audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
  card requested 44100 instead.(I a using my Laptop Acer 5570Z series
may be
sound card not supported.)

2- FYI: No Powermate or Contour Knob found ( For this I read that there
is
no Problem,just for information)

3- "aUaUaU" is running  from FAQ I read that not enough samples to
delivered
to sound card. Its mean signals are not strong to listen FM here  in my
Lab.

Is there any guidance to solve these problems.



2009/1/28 Eric Blossom <eb@comsec.com>
B538f3568f304bb9c10b6719e1d370af?d=identicon&s=25 Karthik (Guest)
on 2009-01-29 07:32
(Received via mailing list)
Try the following:

usrp_wfm_rcv.py -f 104.5 -O plughw:0,0

Karthik
5b956b6b52e6bd83ad6da9815f4442a4?d=identicon&s=25 Mir Ali (Guest)
on 2009-01-29 07:35
(Received via mailing list)
These problems have already been dealt with before. Look in the mail
archives and you will surely find the answers.
E5c024646c69e11e580fe3f46e3b68c4?d=identicon&s=25 Russell Sher (russellsher)
on 2009-01-29 07:53
(Received via mailing list)
add the -O option when you run the example as follows:

usrp_wfm_rcv.py -f104.5  -O plughw; 0,0



you can read more about plughw at http://alsa.opensrc.org/DigitalOut -
and other sites

Russell




________________________________

From: discuss-gnuradio-bounces+rsher=tellumat.com@gnu.org
[mailto:discuss-gnuradio-bounces+rsher=tellumat.com@gnu.org] On Behalf
Of Mir Ali
Sent: 29 January 2009 08:30 AM
To: Bari Bari
Cc: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Exploring the world of GNU


These problems have already been dealt with before. Look in the mail
archives and you will surely find the answers.


On Wed, Jan 28, 2009 at 5:16 PM, Bari Bari <barithegreat@gmail.com>
wrote:


  Thanks for ur guadiance I ahave already installed GNUradio on
ubuntu 8.1 from Synaptic packages  manager but I am not sure either any
module or library is missing.
  The gnuradio version is 3.0.4 2ubuntu2.
  I have checked many examples , these are working but when i run
fm example like $python usrp_wfm_rcv.py -f 104.5
  I received folowing messages:

  1- audio_alsa_sink[hw:0,0]: unable to support sampling rate
32000
    card requested 44100 instead.(I a using my Laptop Acer 5570Z
series may be sound card not supported.)

  2- FYI: No Powermate or Contour Knob found ( For this I read
that there is no Problem,just for information)

  3- "aUaUaU" is running  from FAQ I read that not enough samples
to delivered to sound card. Its mean signals are not strong to listen FM
here  in my Lab.

  Is there any guidance to solve these problems.






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745d8202ef5a58c1058d0e5395a78f9c?d=identicon&s=25 Eric Blossom (Guest)
on 2009-01-29 20:25
(Received via mailing list)
On Wed, Jan 28, 2009 at 10:28:36PM -0800, Karthik wrote:
> Try the following:

> usrp_wfm_rcv.py -f 104.5 -O plughw:0,0

Be sure to provide the SI suffix on the freq otherwise it's going to
try to tune to 104.5 Hz

  usrp_wfm_rcv.py -f 104.5M -O plughw:0,0

Eric
0a229e7e9ac5caa7e779da5913c0e7ca?d=identicon&s=25 Bari Bari (Guest)
on 2009-01-29 22:16
(Received via mailing list)
ya I am using SI suffix for Mega Hz.
But still not listening FM. no error appear except failed to set initial
frequency.
I have USRP with DBSRX  daughter, and I have two SMA  connector RF1 and
RF2,
actually this is already installed here and it has no LED on it.as these
board supports 800MHz to 2.4 GHz.
So is it possible to operate it on below 800 MHz like FM.
Second I run usrp_oscope.py and usrp_siggen.py but it works only in the
range 1.5GHz to 2.0 GHz.
Can u explain the reasons.
Thanks.

2009/1/30 Eric Blossom <eb@comsec.com>
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