Hi group,
As part of my major uni project I'm using software radio to create a
data communications network for long range HF transmission.
The problem is that to do make this system we only have 8 months, and it
has become evident that there is too much work involved in this project
when i
Almost. Translate the carrier to where you want it to be and then use a
complex bandpass filter to pick off the sideband.
make the filter edgesL < H for your favorite bandwidth (H-L)
for USB, make a complex filter with edges L, H
for LSB, make a complex band pass filter with edges
Hi All, (sound stupid but...) Will the mux setup change the sample rate? For instance: I have 2 signals hooked up to RxA and RxB (2 diff. Rx basic daughterboards) and collecting data: set_mux(gru.hexint(0x32103210)) be collecting less data per second than set_mux(gru.hexint(0x20202
On Sat, Mar 04, 2006 at 06:49:25PM +0100, Matteo Campanella wrote:
> Hello, I have made my first attempt at gnuradio and usrp today, trying
> to get a phasing ssb demod - what follows is what I got, any suggestion
> would be more than welcome. The demod is designed as a class to be
> istantiated by
On Wed, Mar 01, 2006 at 11:02:12PM -0500, amit malani wrote:
> i am sorry for asking it again, but few of my questions got lost with the
> flow of discussion.
>
> how control signaling is done?..whats the protocol for it?
> actually when i say these lines.
Please take a look at the code in usrp_s
On Fri, Mar 03, 2006 at 12:06:01AM +0100, Matteo Campanella wrote:
>
> In another script, usrp_wfm_rcv.pl, another method has been used, the
> usrp.tune, that, according to the tests, does not need any successive
> adjustment - is there any reason why the am receiver is not written using
> this
Hello, I have made my first attempt at gnuradio and usrp today, trying
to get a phasing ssb demod - what follows is what I got, any suggestion
would be more than welcome. The demod is designed as a class to be
istantiated by a gui (i am using a modified version of usrp_wfm_rcv
gui). Right now the o
I'm getting the following errors from plot.py, but under circumstances I
can't quite pin down.
It started happening when I added markers to a plot, but not all the
time, just sometimes.
Traceback (most recent call last):
File
"/usr/local/lib/python2.4/site-packages/gnuradio/wxgui/ra_stripch
Hi all,
The latest revision of the usrp have changed usb device-id version numbers.
As a result existing hotplug scripts to change permissions don't work anymore,
and you have to add the new ids.
The old usrps rev 2.x had the following usb_ids
unconfigured usrp rev 2.x fffe/2/2
usrp
i am sorry for asking it again, but few of my questions got lost with the flow of discussion.how control signaling is done?..whats the protocol for it?actually when i say these lines.
src = usrp.source_c (0, decim)src.set_rx_freq (0, IF_freq)src.set_pga(0,20)how actually it
On Saturday 11 March 2006 05:56, Robert W McGwier wrote:
> Here is my understanding of that situation. He wrote it in Qt3. There
> is no Qt3 GPL license FOR WINBLOWS. He released the source code and
> when Trolltech objected, he removed it.
>
This contradicts with Trolltechs statement for the Q
Hello!
That maybe a good thing (TM) however the website portion of the site
lists.gnu.org is now down. I suspect they want the machine to spend
all of its time sending out those messages. I find this to be a
nuisance. After all I'm also a member as well as manager for Bug-Grub.
--
Gregg C Levine [E
Hi Matt,
I get a failed timing when I try to build the rbf for usrp_std.
Any idea why this is?
(This is a cvs checkout of a few days ago)
I use QuartusII 5.1 including service pack 1
(I only tried the usrp_std_config_4rx_0tx version)
// Uncomment this for 4 rx channels (w/o halfband) & 0 tra
On Fri, Mar 10, 2006 at 02:42:56PM -0800, Matt Ettus wrote:
> Clark Pope wrote:
> >
>
> You need a new crystal or an external oscillator.
>
> > 2. If I change over to 44 MHz will everything else still work?
> > Especially the dbs and flex2400 boards?
>
> You will need to change the 64e6 in line
Clark Pope wrote:
>
> I would like to run my USRP off a 44 MHz clock instead of the 64 MHz
> clock that is currently used. A couple reasons:
> 1. the 64MHz rate exceeds the USB bandwidth even with byte-wide samples
> (64*8 = 512 mbps)
> 2. 44 MHz works much better for the wlan signals I'm after
>
On Fri, 2006-03-10 at 14:24 -0500, Robert W McGwier wrote:
> We are giving away all the secrets. The only secrets in SDR DSP are how
> to make a complex filter and how to overlap-NNN based convolution of an
> FIR. All the rest is glue logic.
>
Well, that does open up a whole new world. Here i
On Thu, Mar 09, 2006 at 09:13:38AM -0800, jjw wrote:
>
> I have been able to eliminate the make check error for gnuradio-core but not
> the make check error for cppunit by using up2date to install pretty much
> every update available. However I've run into another error.
>
> I get the whole down
On Fri, 2006-03-10 at 11:40 -0500, Bob McGwier N4HY wrote:
> I missed this question for 3 days.
it took 3 days to hit the list
> Yes we do. And here is how it works
>
> It makes a real, low pass filter with cutoff
>
> (H-L)/2
>
> and then spins the coefficients to the correct frequency usi
On Fri, Mar 10, 2006 at 10:25:12AM -0500, [EMAIL PROTECTED] wrote:
> Do python accessable routines exist in gnuradio to handle AFSK,
> CCITT-CRC16, and HDLC packets like we find in multimon and
> soundmodem? I would like to expand the fm receiver example and
> listen to HDLC packets from a 1200bp
On Fri, Mar 10, 2006 at 11:21:08AM -0500, Clark Pope wrote:
>
> I would like to run my USRP off a 44 MHz clock instead of the 64 MHz clock
> that is currently used. A couple reasons:
> 1. the 64MHz rate exceeds the USB bandwidth even with byte-wide samples
> (64*8 = 512 mbps)
> 2. 44 MHz works m
I would like to run my USRP off a 44 MHz clock instead of the 64 MHz clock
that is currently used. A couple reasons:
1. the 64MHz rate exceeds the USB bandwidth even with byte-wide samples
(64*8 = 512 mbps)
2. 44 MHz works much better for the wlan signals I'm after
So the questions are:
1. ca
Hi,
I note that the gr_firdes::hilbert() routine and hence the hilbert_fc
process does not have a gain of 1 for low numbers of taps (gain of
0.3 for 155 taps).
Is this correct ?
Cheers
Terry
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The March issue contains an introduction to SDR and cognitive radio by
Steven Ashley. Vanu is mentioned but not GNURadio, even as a source for
further information.
Interesting mention of MEMS-RF and the absence of WLAN telephony due to
carrier resistance but nothing about the controversy of S
Eric Blossom wrote:
> On Tue, Feb 28, 2006 at 04:34:19AM +0100, Martin Dvh wrote:
>
>>A lot of things have changed in the verilog so make distcheck failed for
>>several reasons.
>>This patch repairs this all.
>>It also includes a script to generate the fpga Makefile.am from
>>fpga/toplevel/usrp_
I modified the gr complex pll carrier tracking. I changed the lock
signal from a float to a bool. I added lock detection threshold
setting. I added squelch and squelch enable.
These changes were made in preparation of upgrades to the FM stereo
receiver. The current receiver works and the s
I have been able to eliminate the make check error for gnuradio-core but not
the make check error for cppunit by using up2date to install pretty much
every update available. However I've run into another error.
I get the whole down to the installation of gr-usrp (following KD7LMO's
method) and w
The March issue contains an introduction to SDR and cognitive radio by
Steven Ashley. Vanu is mentioned but not GNURadio, even as a source for
further information.
Interesting mention of MEMS-RF and the absence of WLAN telephony due to
carrier resistance but nothing about the controversy of S
Robert W McGwier wrote:
We are giving away all the secrets. The only secrets in SDR DSP are
how to make a complex filter and how to overlap-NNN based convolution
of an FIR. All the rest is glue logic.
;-)
Having built 3 different applications based on GnuRadio at this point, I
can say that
Has anyone looked into these?
http://www.comblock.com/com1200.htm
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Here is my understanding of that situation. He wrote it in Qt3. There
is no Qt3 GPL license FOR WINBLOWS. He released the source code and
when Trolltech objected, he removed it.
Bob
Charles Swiger wrote:
Just curious if anyone knows anything about this situation - there is a
gnu licensed
We are giving away all the secrets. The only secrets in SDR DSP are how
to make a complex filter and how to overlap-NNN based convolution of an
FIR. All the rest is glue logic.
;-)
Bob
Charles Swiger wrote:
On Fri, 2006-03-10 at 11:40 -0500, Bob McGwier N4HY wrote:
I missed this questi
Just curious if anyone knows anything about this situation - there is a
gnu licensed project on sourceforge called DReaM. A fellow named Cesco,
HB9TLK, created a ham radio version called WinDRM
( http://n1su.com/windrm/docs/1.1/ ) derived, so they say, from DReaM,
but at far as I can tell, there is
Has anyone tried using the GPS antennas where you have to provide DC power
over the antenna line with a USRP? Especially for the DBS board? Seems like
there ought to be a way to get one of the DAC outputs coupled into the RF to
power a gps lna or switch elements, etc.
Thanks,
Clark
On Sun, Mar 05, 2006 at 02:21:55AM -0500, Satashu Goel wrote:
>I am trying to find some information on how to use the two Tx
>daughterboards to transmit independent data streams?
>In one of the posts,
>http://lists.gnu.org/archive/html/discuss-gnuradio/2005-10/msg00142.html
>Eric said that this can
> Message: 2
> Date: Tue, 7 Mar 2006 18:37:04 -0800
> From: Eric Blossom <[EMAIL PROTECTED]>
> Subject: Re: [Discuss-gnuradio] Simulateous transmission from two
> daughterboards
> To: Satashu Goel <[EMAIL PROTECTED]>
> Cc: discuss-gnuradio@gnu.org
> Message-ID: <[EMAIL PROTECTED]>
> Content-Type:
On Wed, Mar 08, 2006 at 08:34:15AM -0500, Satashu Goel wrote:
> Yes, an example will be very helpful.
>
> Thanks,
> Satashu
OK!
I'll put one together today.
Eric
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On Wednesday 08 March 2006 13:05, Eric Blossom wrote:
> FYI,
>
> I just installed SuSE 10.0 on a new laptop:
> [ ThinkPad X60: Can you say 3.6 pound dual core machine? ;-) ]
>
> With the following exception, everything required to build GNU Radio
> was included on the DVD.
>
> The exception was:
>
I missed this question for 3 days. Yes we do. And here is how it works
It makes a real, low pass filter with cutoff
(H-L)/2
and then spins the coefficients to the correct frequency using a complex
sinusoid.
It is used in a few places in usrp_wfm_rcv_pll.py
Bob
Charles Swiger wrote:
O
It just happens I've got some MGA62563 from Avago (former Agilent) - those
are MMIC on steroids: 0.8dB noise figure from 50 to 1300 MHz, 22db gain -
5v supply, very simple polarization circuit. Let's see how it performs.
Given the very low intermod characteristic of the MMIC, i'll try without
filt
On Wed, Mar 08, 2006 at 02:18:35AM -0500, Frank Brickle wrote:
> Eric Blossom wrote:
>
> >Using LD_ASSUME_KERNEL=2.4.19 effectively forces the old (pre-NPTL)
> >behavior, which means that acquiring an uncontested mutex requires a
> >trip to the kernel. I believe it also means that mutexes won't w
Do python accessable routines exist in gnuradio to handle AFSK, CCITT-CRC16, and HDLC packets like we find in multimon and soundmodem? I would like to expand the fm receiver example and listen to HDLC packets from a 1200bps modem through my soundcard like I do with soundmodem.
Jim Clements
AI4NZ
On Wed, Mar 08, 2006 at 02:31:04PM +1030, Berndt Josef Wulf wrote:
>
> My DVD, whilst providing most development tools, didn't have gnu gcc and g++.
> It was missing and I had to build it from sources.
Strange...
> sdcc is missing too and I have yet to build it.
It builds with the normal ./co
On Sun, 2006-03-05 at 00:48 -0500, Robert McGwier wrote:
> Almost. Translate the carrier to where you want it to be and then use a
> complex bandpass filter to pick off the sideband.
>
> make the filter edgesL < H for your favorite bandwidth (H-L)
>
> for USB, make a complex filter wit
On Tue, Mar 07, 2006 at 02:51:31PM -0800, jjw wrote:
>
> I am running a Pentium architecture. I tried using an older version of GCC
> (3.2) per someone else's instructions but it did not get rid of the error
> during the make check of gnuradio-core. I tried doing a make check on all
> of the bas
On Tue, Feb 28, 2006 at 04:41:26PM -0700, Brian Johnson wrote:
> Hi,
>
> What sort of problems can I expect if I use the GMSK2 examples with the
> Basic RX/TX boards?
You mean problems like "it doesn't work" ???
The basic problem is that the transmitter will be blasting all the
time, making rece
On Tue, Feb 28, 2006 at 03:24:22PM +0100, Martin Dvh wrote:
> Hi all,
> The latest revision of the usrp have changed usb device-id version numbers.
> As a result existing hotplug scripts to change permissions don't work
> anymore, and you have to add the new ids.
>
> The old usrps rev 2.x had the
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