It works! Thanks a lot for the suggestion, but I think its enabling real
time scheduling that helped :). The Tx amplitude did not make any
difference.
Now I am checking how many of these packets reach successfully to the
receiver.
On Fri, Dec 5, 2008 at 12:40 AM, Firas Abbas <[EMAIL PROTECTED]>wr
Hi,
I have a strange suggestion to you (it worked for me in some time earlier). If
it works for you please give us a feedback.
the Suggestion:
Change TX amplitude from 12000 (as you stated in your email) to 2000 and redo
the experiment.
Note:
To run with real time scheduling, start your p
Hi guys,
Thanks a lot for all the help. Continuing where Jing left (we work in the
same team) ...
My installation is on ubuntu 8.10 using the repositories listed on gnuradio
website. I am calling benchmark_tx.py with interpolation of 512 and trying
to change it every alternate packet to 256. Othe
From: Johnathan Corgan <[EMAIL PROTECTED]>
To: Bill Stevenson <[EMAIL PROTECTED]>
Cc: discuss-gnuradio@gnu.org
Sent: Thursday, December 4, 2008 6:25:24 PM
Subject: Re: [Discuss-gnuradio] a report on dqpsk modulation in gnuradio
On Thu, Dec 4, 2008 at 1:04 PM,
On Thu, Dec 4, 2008 at 12:11 PM, Jérémy Skelton <[EMAIL PROTECTED]> wrote:
> To problem is that I'm not able to recover the original data but only the
> repetitions of it : I repeat several times two bytes in the input file and I
> get several two other bytes at the output.
It looks like you have
Hello all,
I am kind of new to gnu radio. I want to implement a CSMA/CA type MAC
protocols on the radio.
I have some basic questions regarding the implementation.
1) How easy is to implement a packet based CSMA/CA on the gnu radio? Is
there any existing code that is public?
2) Reading
On Thu, Dec 4, 2008 at 1:04 PM, Bill Stevenson
<[EMAIL PROTECTED]> wrote:
> -r 400k -s 1500: 50% of the transmitted packets are received, but 0 right.
For comparison purposes, can you try using the GMSK modulation? Just
remove the '-m dqpsk' from the command line.
-Johnathan
_
On Thu, 2008-12-04 at 17:07 -0500, [EMAIL PROTECTED] wrote:
> I am considering if I should create gnuradio blocks to detect DTMF,
> AFSK, and other digital transmission modes that I currently detect
> using multimon (http://www.baycom.org/~tom/ham/linux/multimon.html).
> I have no USRP yet. I just
Hello all:
I am considering if I should create gnuradio blocks to detect DTMF,
AFSK, and other digital transmission modes that I currently detect
using multimon (http://www.baycom.org/~tom/ham/linux/multimon.html).
I have no USRP yet. I just use the audio from a VHF/UHF amateur radio
attached to m
From: David Burgess <[EMAIL PROTECTED]>
To: Daniel O'Connor <[EMAIL PROTECTED]>
Cc: Bill Stevenson <[EMAIL PROTECTED]>
Sent: Tuesday, December 2, 2008 1:27:07 AM
Subject: Re: [Discuss-gnuradio] testing outside building with our USRPs
Thank you, David and Dani
From: Johnathan Corgan <[EMAIL PROTECTED]>
To: Bill Stevenson <[EMAIL PROTECTED]>
Cc: discuss-gnuradio@gnu.org
Sent: Wednesday, December 3, 2008 2:57:55 PM
Subject: Re: [Discuss-gnuradio] a report on dqpsk modulation in gnuradio
Thank you, Johnathan! I did my
Hi,
I have been trying to make a baseband transmission by assembling
blocks with GRC.
I'm using this scheme :
http://www.skelton.eu.org/Image1.png
To problem is that I'm not able to recover the original data but only
the repetitions of it : I repeat several times two bytes in the input
fi
Chiara De Dominicis wrote:
My machine is an OpenSUSE11 and I installed both current GNURadio
version and subversion r7596.
Do I forget something?
Hi Chiara,
I have only tried installing it on Ubuntu. I wrote the instructions on
CGRAN and it worked fine for me.
Are you making sure you
On Wed, Dec 3, 2008 at 1:40 AM, Paolo Di Monte <[EMAIL PROTECTED]> wrote:
> My distribution is Gentoo Linux.
[,,,]
> Any help would be very appreciated; just let me know what other informations
> could be useful to try to solve the problem
> thank you
Unfortunately I have not personally worked wi
On Wed, Dec 3, 2008 at 1:01 AM, Mikael Johansson
<[EMAIL PROTECTED]> wrote:
> I am curious about what (and when) to expect from future releases.
As is the case with most open source development projects, the feature
set tends grow "organically" rather than by strict adherence to any
sort of long-
On Thu, 2008-12-04 at 12:28 -0500, Marco Bottino wrote:
> I'm using the USRP Motherboard with a LFRX daughterboard.
> Question: if the ADC has 12 bits, each sample that arrives from the
> doughterboard is 12 bits real or imaginary. But over the USB the samples (real
> or imaginary) are 16 bit sign
Hello everybody,
I'm sorry to post once again a question about the dimension and the format of
the samples output by the USRP, but it is actually hard for me to understand.
I'm using the USRP Motherboard with a LFRX daughterboard.
Question: if the ADC has 12 bits, each sample that arrives from
On Thu, Dec 4, 2008 at 2:47 AM, Halil Yigit <[EMAIL PROTECTED]> wrote:
gr_fir_fff: using SSE
> warning : failed to enable realtime scheduling
Some GNU Radio applications are written to try to set the process
scheduling priority to realtime in order to obtain the best possible
performance. Ho
Hello,
Selon Paul Mathews <[EMAIL PROTECTED]>:
> You have to choose reasonable values for the decimations and filter
> parameters. The attached file runs without generating compiler errors, but
> it's up to you to take it from here.
> Paul
>
If, as you say, it runs, what does "RuntimeError: comp
Hi list!
I tried to install the 802.11 BBN code following exactly the instruction in
the https://www.cgran.org/wiki/BBN80211 page but when I run any example I
got this error:
> Traceback (most recent call last):
> File "bbn_80211b_rx.py", line 33, in
> from bbn_80211b_pkt import *
> File
Yihu Li wrote:
> Hi everyone,
>
> I am new to gnuradio and plan to do some cross-layer implementation (MAC
> and PHY layers with MIMO) on gnuradio. I intalled the newest stable
> version of gnuradio (v3.1.3) and plan to use BBN 802.11 code or
> span80211b with it. However, it seems that BBN 802.11
Hi, i run usr/local/share/gnuradio/examples/digitals$./benchmark_tx.py --freq=2.4G this give warning following: >>>gr_fir_fff: using SSEwarning : failed to enable realtime scheduling what is the problem? Regards
___
Discuss-gnuradio mailing list
Disc
maybe you can use the numpy instead of Numeric
Yihu Li wrote:
>
> Hi everyone,
>
> I am new to gnuradio and plan to do some cross-layer implementation (MAC
> and
> PHY layers with MIMO) on gnuradio. I intalled the newest stable version of
> gnuradio (v3.1.3) and plan to use BBN 802.11 code or s
Hi, i run usr/local/share/gnuradio/examples/digitals$./benchmark_tx.py --freq=2.4G this give warning following: >>>gr_fir_fff: using SSEwarning : failed to enable realtime scheduling.. what is the problem? Regards
_
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