Hi all
Back in October 2015 I dropped a question to the list, asking if anybody had
attempted implementing LoRamodulation using GNURadio. At that time Marcus
Muller kindly replied, suggesting me to take such endeavour. Unfortunately,
such project did not get enough attention and I had to drop it
Hello Marcus
Thanks for your reply. I'll look into your advice, sounds doable.
Indeed in the past days I was thinking how to make good use on my USRP
+WBX to setup a testbench for smart applications using The Things
Network (thethingsnetwork.org) with Arduino UNO.
I will post my progresses.
Che
Hello
I would like to know if anybody has attempted implementing a LoRa
modulatiion using GNURadio.
Thanks in advance for any indication.
Best Regards
Alberto Trentadue
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Hello
We would like to use data collected by simple_ra and post-process it with
Octave.
May you please advise the most
straightforward way?
Thanks in advance
BR
Alberto
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Hello
I am considering using 2 RTL SDR compliant dongles + GRC for some simple
interferometric application.
Having two
of such dongles, does anybody know if it is possible to have both running as
GRC sources?
If not, would it be possible
in theory (to be developed) or there is a strict archit
Hello
I am trying to define a customised block and I would like to understand better
how the history works.
I have opened the source of gr_moving_average_XX and I saw the following
statement in the constructor:
@NAME@::@NAME@ (int length, @O_TYPE@ scale, int max_iter)
: gr_sync_block ("@BASE
Hello
Just to make sure, may anybody please confirm the sequence of operations within
the freq_xlating_fir_filter?
Is it:
in --->XLATE--->FILTER--->DECIM---> out
When defining the FIR taps with firdes, shall I consider the input sampling
freq or the output sampling freq (= input
sampling freq
On Wed, 2010-10-27 at 15:08 +1100, Matt Robert wrote:
Thanks Matt, I can relax now!
>
> Cheers,
> Matt
>
>
> On
27/10/10 2:57 PM, Matt Ettus wrote:
> > On 10/26/2010 08:35 PM, Matt Robert wrote:
> >> Hi all,
> >>
> >> Since there
is no power switch on the USRP itself, I would like to know
> >>
nature:
>
>
> in
> $type
>
>
>
ctrl
> byte
>
>
> out
> $type
>
>
> Looks correct?
> -Josh
>
>
> On 05/28/2010 03:32 PM, Alberto Tr
Hello
I think I found a wrong input declaration in the sample_and_hold GRC block.
The "control" input is defined to be
of the same data type of "in" and "out". Instead, it should be a byte.
This is the fix I have applied:
[albe...@iz0cez gnuradio]$ diff -c
./share/gnuradio/grc/blocks/gr_sampl
Hello
I've seen on the archives, and experienced myself, that GR does not support
having loops in the flow graph.
I would like to get some more insight on this limitation to understand 1.the
reasons for it and 2. how to workaround
it in those cases where a feedback loop is a key solution.
Naivel
Hello
Just checking before: does anybody have a CIC filter implementation for GR?
Thanks in advance.
Alberto
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Hello to the list
I am trying to build a simple SSB transmitter using GRC - GR-3.2.2.
I use the 32Khz sampled audio source and bandpass it to reduce bandwidth to
minimum.
In order to match USRP usable interpolation, I have to set an interpolation by
10 to the bandpass, so that 32K * 10 *
400 =
Hi
I assume that the objective for a GNU HW manufacturer should be "to keep
providing the SDR hardware at lowest
possible prices and keep developing products" + UNDER GPL.
I know no big company with these objectives. And I don't expect NI to be
different. GNU and big business are not good
fri
Hello
Is a preselector needed before the USRP when receiving from antenna? May be
not. I see that there's a CIC filter
in the USRP which is selective enough to estract a narrower band for the
GNURadio processing.
But at least I need a low-
pass filter before the USRP to get rid of strong singnal
Hello
I've found a bug in the logical "Not" block of GRC as built from gr 3.2svn. I
haven't found the fix in the
change logs of 3.2.x, so here I report.
If it has been fixed in the meanwhile please ignore this mail.
The problem is
that the "Not" block comes with 2 inputs and does not accept le
On Fri, 2009-06-05 at 12:14 -0700, Firas Abbas wrote:
> Hi,
>
> --- On Fri, 6/5/09, Patrick Strasser wrote:
> > Hello!
> >
> > ednet[1] and RaidSonic[2] sell boxes that can forward USB
> > ports over
via the Linux USB/IP[3] system.
> >
> > Patrick
> >
>
> From the web site the transfer rate
On Tue, 2009-06-02 at 08:36 -0700, Mark J. Yusko wrote:
I recently tried to compile 3.2 using updated Fedora 10 and ran
into a "not using boost > 1.35" error during ./config. With Fedora 11 to be
released in a few days, I find it
preferable to wait for this release and then upgrade my system to
Hello
This is for Matt.
I'm not aware about USRP requirement's history, hence I'm asking.
I apologise immediately if the question is stupid enough... :-)
have you ever think about a simplified USRP, or 1/2 USRP, having only 1 side TX
and RX?
Would it make a cost difference (maybe on a large volum
Hello
I've tried to receive 7 MHz ham bands with LFRX.
As expected, after reading the mailing list and documents around, I realized
that without a steaming >40db low noise
preamp ahead LFRX, there's very little to listen to (although I managed to
listen some broadcast on 7100 - 7200kHz with
an
Hi Bob
Your detailed description below triggers one question.
I'm about to setup a desktop (non portable) platform for GNURadio.
I know how to assemble a PC, but actually not expert in selectin HW.
ATOM is a good new product.
But as long as I'm not interested in portability, low power and in nift
Hello Bari
In my still early exploration of the USRP, I've seen 2 SMD LEDs (D402 and D403)
which are placed near the FX2
controller (USB).
One is a kind of controller heartbeat, the second (it seems to me) turns on
when there's active USB2 transmission to
the FPGA.
Alberto
>Messaggio orig
>Messaggio originale
>Da: jcor...@corganenterprises.com
>Data: 18/01/2009 23.40
>A: "Alberto Trentadue"
>Ogg: Re: [Discuss-gnuradio] hf_radio sampling rate mismatch with ALSA
>
>On Sun, Jan 18,
2009 at 2:11 PM, Alberto Trentadue
> wrote:
>
>&g
Hello
After starting successfully the USRP, the natural next step is to try out some
example.
Being a ham radio, I
focused on 'hf_radio'.
I immediately got an ALSA sampling error:
audio_alsa_sink[hw:0,0]: unable to support sampling
rate 16000
card requested 44100 instead.
...then an endle
> Hello
>
> I've finally assembled the USRP few days ago, after being delayed some months.
>
> The power-on behaviour
looks as expected: one led blinks at 3 Hz or so.
> The next step is to try out some example, e.g. usrp_benchmark_usb.py
or usrp_wfm_rcv.py.
> Whatever the test I try, I can see
>Messaggio originale
>Da: albtrenta...@tiscali.it
>Data: 15/01/2009 22.37
>A: "Discuss GNU Radio List"
>Ogg: [Discuss-gnuradio] Re: USB2 problems with Fedora/USRP
>
>> Hello
>>
>...
>> The next
step is to try out some example, e.g. usrp_benchmark_usb.py or usrp_wfm_rcv.py.
>> Whatever
>
>On Thu, 2009-01-15 at 22:37 +0100, Alberto Trentadue wrote:
>
>> It seems that I was wrong: USB2 driver seems to be working well, at least
>> for the first
>> configuration steps, because I am successful in configuring the Cypress FX2.
>> Then it looks like t
> Hello
>
...
> The next step is to try out some example, e.g. usrp_benchmark_usb.py or
> usrp_wfm_rcv.py.
> Whatever
the test I try, I can see that blinking led is switched of for a couple
seconds, then it blinks at lower
> rate, and
another led near to it turns on (don't remember which is
Hello
I've finally assembled the USRP few days ago, after being delayed some months.
The power-on behaviour looks as expected: one led blinks at 3 Hz or so.
The next step is to try out some example, e.g. usrp_benchmark_usb.py or
usrp_wfm_rcv.py.
Whatever the test I try, I can see that blinking l
Messaggio originale
>Da: [EMAIL PROTECTED]
>Data: 12/11/2008 15.00
>A: "Alberto Trentadue"<[EMAIL PROTECTED]>
>Cc:
>Ogg: Re: [Discuss-gnuradio] Re: USRP Documentation (source files)
>
>On Wed, Nov 12, 2008 at 8:43 AM, Alberto Trentadue
><[E
Firas A. wrote:
>It will be great if we could put the document in Wiki and periodically
>update it. I don't know exactly how to do this, but I'm ready to do it if
>someone guided me.
>
>The document source files (OpenOffice document and images) can be downloaded
>from :
>
>http://rapidshare.com/fil
Hello
I have recently purchased the USRP and planning SDR/education
applications.
Now that USRP2 is out, what is the plan to keep USRP supported, both
HW-wise and by GNURadio?
Thanks
A.
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Andrew Rose wrote:
> Does anybody here have any experience (good or
bad) with installing and
> using GnuRadio on CentOS?
Hi
I've been
successful in compiling GNURadio on Centos 5.1 Final.
Of course I had
to adjust a bit the configuration before trying, but then it was ok
almost at the first tr
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