>> Why does the config_mimo(MC_WE_SYNC_TO_SMA) always return true, even
>> when there is no reference signal connected to the SMA connector?
>
> It just configures the clocks. It doesn't check to see the PLL locks.
Is there any way to know if the PLL is locked? A PLL lock is critical
for most of
hi,all:
I am a new comer,i have learned the theory of ofdm.I wanna analyse the
implement of ofdm by gnuradio and usrp .But in gnuradio 3.1.3 ,there is no
ofdm implement. Who can help me?
Is there doc or something berifly interpreting the implement of ofdm?
Could you send me a copy.
T
Hi,I am working on a mp3tofm radio transmitter .I want to send mp3 files at
multiple frequencies .How can i do it?Presently I can send at a particular
freqency.Regards, Mayur Sarode Dear discussgnuradio ! Get Yourself a cool,
short @in.com Email ID now!
_
Dear Community,
We've been working with USRP and Gnu Radio for various tasks in our Cubesat
project for some time now. Recently we thought of using the set-up (Linux
Ubuntu, USRP (1) and Gnu Radio / GRC) for receiving, decoding and recover
data from our ground based payload. We are not flying the
-Original Message-
From: discuss-gnuradio-bounces+per.zetterberg=ee.kth...@gnu.org
[mailto:discuss-gnuradio-bounces+per.zetterberg=ee.kth...@gnu.org] On Behalf
Of Eric Blossom
Sent: den 5 maj 2009 20:09
To: hjaffer
Cc: Discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Simple progra
Hi, I'm doing a GUI for gnuradio using wxpython. I want to run the gnuradio
top_block in a thread outside of the thread of GUI mailoop. How can I run
top_block in a thread? Is there any examples?
--
View this message in context:
http://www.nabble.com/How-can-I-run-a-instance-of-top_block-in-a-t
Eric Blossom wrote:
>
>
>
> If you mean that you have local changes that are based on the 3.1.3
> tarball, then the most straight-forward way to handle this is to
> generate a "diff -u" between the unmodified 3.1.3 source and your
> modified source, then apply that difference to a virgin copy
> I seriously doubt that making a regular BPSK receiver that goes all-the-way,
> i.e. recovers the transmitted data has ever been done. We haven't found any
> trace of anything be it commercial, research or DIY.
Have you looked at the examples in the 'digital' folder? The
benchmark_rx and benchma
On Tue, May 05, 2009 at 11:41:07PM -0700, jimmyzhang wrote:
>
> I face the same problem .Is there anyone can handle it?
> please give some advices to deal with it.
> Thank you very much.
>
Use gdb and figure out where the segfault is occurring, then find out
why it's segfaulting, then submit a p
Hi Eric,
Thanks for the answer.
It's hard to say. If you've got a logic analyzer you can instrument
the inner loop of the firmware and see if that's the bottleneck or not.
Unfortunately, I don't have a access to a logic analyer :(
However, I made progress that I am going to share once it is
On Wed, May 06, 2009 at 06:35:36PM +0200, Dominik Auras wrote:
> Hi Eric,
>
> Thanks for the answer.
>
>> It's hard to say. If you've got a logic analyzer you can instrument
>> the inner loop of the firmware and see if that's the bottleneck or not.
> Unfortunately, I don't have a access to a logic
On Wednesday 06 May 2009 18:35:36 Dominik Auras wrote:
> Do you have, maybe, an idea why TX bandwidth is limited? Interestingly
> enough, 32.7 Mb/s is the limit on my computer and my notebook. Of
> course, I made the tx loop on the host as short as possible, set
> SCHED_FIFO and rtprio to 49, and p
Hi all,
I modified the gain in the bbn_80211_rx.py file from 46 to 27 and the
loss ratio has fallen down to 15-20%. Do you have any idea about the
best value to put?
this is the ping capture:
# ping 10.0.0.1
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_s
The DBPSK blocks are in GRC under DPSK, there is a drop down to choose
between DBPSK, DQPSK, D8PSK. Also, see the packet encoder/decoder to
accompany the DPSK modulator blocks.
A helpful example:
http://gnuradio.org/trac/browser/gnuradio/trunk/grc/examples/simple/dpsk_loopback.grc
-Josh
Jason
Hi there,
I'm very much a GnuRadio beginner using it for a final year physics project.
Due to the time restraints on my project I apologise for my complete lack of
knowledge in almost all areas relating to GnuRadio.
I'm currently trying to build a noise riding threshold system. For this to w
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Ben Yahmed wrote:
> Hi all,
> I modified the gain in the bbn_80211_rx.py file from 46 to 27 and the
> loss ratio has fallen down to 15-20%. Do you have any idea about the
> best value to put?
> this is the ping capture:
>
> # ping 10.0.0.1PING
Dominik Auras wrote:
>
> When doing RX only, I am at 45 Mb/s (yes! decim=6 works without
> underruns). On the TX side, I can't get above 32.7 Mb/s. Now I suspect
> that this is a host side bottleneck. On the FX2, if using only one
> direction, I am setting the GPIF to loop infinitely. With
> GPIFAB
I searched the list and perused some source code, but could not find answers
to the following, so
1) Is there a way to do a 'one-time' trigger with the oscilloscope? I like
having the ability to capture data and examine it.
2) I can't seem to capture more than a very small window of samples,
I would install gnuradio trunk or 3.2 release candidate and enable the
gl sinks: http://gnuradio.org/trac/wiki/CompGrWxgui#GLSinks
The gl scope has much better time scaling and triggering capabilities.
-Josh
Tom Lutz wrote:
I searched the list and perused some source code, but could not find
When the numbersink2 is instantiated with "average=True",
an error is generated.
Please see attached test case.
It is related to the instantiation of the iir filter required for
averaging...
Achilleas
[anas...@jefe_old gnuradio_trunk]$ svn diff gr-wxgui/src/python/numbersink2.py
Index: gr-
Its fixed in r10979, thanks!
Achilleas Anastasopoulos wrote:
When the numbersink2 is instantiated with "average=True",
an error is generated.
Please see attached test case.
It is related to the instantiation of the iir filter required for
averaging...
Achilleas
---
Does anyone out there have a pre-compiled libusrp for the Gumstix
Overo? Preferably from GSN Radio 3.1?
-- David
David A. Burgess
Kestrel Signal Processing, Inc.
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Hi!
Hmmm. My application is RX-only. Using 8-bit samples, that 45Mb/s
gives about 20Msps.I have a QX9770 system running
at 3.7GHz, but *still* get overruns at two channels, 8Msps per
(complex) channel. I also get overruns at 16Msps, single-channel.
You mean, your system doesn't even s
It is a saw wave (0-255 per packet, upper 8 bits of each short are
zero). Thanks for the info! I will try sending different data this evening.
Dominik
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