I've just made AKS modulator and demodulator
Currently, however, I couldn't use USRP. So I cannot make sure that it
really works
And also, I'm new to GNUradio and USRP!
These are flow graphs made by GRC, and some test input file sources. (with
lots of 0x00's and 0xFF's)
http://goo.gl/sx5m (a ta
Power
Jorge Miguel wrote:
>HI,
>
>I wonder if the red Leds of the XCVR2450 have any meaning.
>
>Many thanks,
>Jorge
>
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I know that is a strange interface, we will put an option to use
external ref clock in an update coming soon to git repositories near
you.
OK, i pushed that change. Update your uhd and gr-uhd.
Also, front panel led E is an indicator of external ref lock:
http://www.ettus.com/uhd_docs/manual/
On 10/28/2010 10:50 PM, songsong gee wrote:
> Now I'm trying to build an ASK demodulator. I use GRC.
>
> However, I REALLY REALLY couldn't find an envelope detector.
>
> Does GNUradio have an envelope detector block?
>
> Or, do I have to make that one?
>
The RMS block will basically do what you
Now I'm trying to build an ASK demodulator. I use GRC.
However, I REALLY REALLY couldn't find an envelope detector.
Does GNUradio have an envelope detector block?
Or, do I have to make that one?
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The site is back up.
Tom
On Thu, Oct 28, 2010 at 9:24 PM, Josh Blum wrote:
> *bump*
>
> On 10/28/2010 06:32 AM, Martin DvH wrote:
>>
>> gnuradio.org seems to be down
>>
>>
>> Martin
>>
>>
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The issue is in
"gnuradio-core/src/filter/qa_gri_fir_filter_with_buffer_ccc.cc". The ERR_DELTA
is set to 1e-5, which for some reason is too tight for OSX (at least 10.6.4
x86_64); when I change this value to 1e-4, the test passes. Since gnuradio.org
is down, I can't check to see if this value
*bump*
On 10/28/2010 06:32 AM, Martin DvH wrote:
gnuradio.org seems to be down
Martin
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__
On Thu, Oct 14, 2010 at 12:13 PM, Steven Clark wrote:
> Hi all-
>
> I have a multi-usrp setup with 2 USRP 1s and 4 WBX daughtercards. I have
> performed the clock synching described here:
> http://gnuradio.org/redmine/wiki/1/MultiUsrp
>
> I'm doing 4-channel receive, using a power splitter to send
> Why do I receive a sine wave when I transmit a constant?
Probably because the 100MHz reference clocks of your two USRP2s are
slightly different
Here are a few suggestions for being sure that you are locking to your
10MHz reference clock:
If you have not modified the generated python code from
Hello Achilleas Anastasopoulos
Sorry for my delay.
Well,I try to start the example (interference_cancellation.grc) but do
not succeed.
I put the trotle and then the warning disappears, but the error not.
I installed the gnuradio by synaptic.
in ubuntu, i think the "Program Files directory" is "
HI,
I wonder if the red Leds of the XCVR2450 have any meaning.
Many thanks,
Jorge
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I will try as soon as I know the right transfer funtion of the filter.
Gr Jasper
-Oorspronkelijk bericht-
Van: Eric Blossom [mailto:e...@comsec.com]
Verzonden: donderdag 28 oktober 2010 21:50
Aan: Jasper Kanbier
CC: Discuss-gnuradio@gnu.org
Onderwerp: Re: [Discuss-gnuradio] FM-Preemph bl
On Thu, Oct 28, 2010 at 06:13:12PM +0200, Jasper Kanbier wrote:
> The FM-Demphasis block seems to work, but FM Preemphasis does nothing to
> the frequency response..looks broken to me..
>
OK. Please fix.
Eric
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It might be a $PYTHONPATH issue in that case... Have you set your PYTHONPATH
environment variable to include the path to where your GNU Radio modules are
installed? e.g. when I run env, the following line is included in the output
(I'm using a Mac):
PYTHONPATH=/usr/local/lib/python2.6/site-package
The FM-Demphasis block seems to work, but FM Preemphasis does nothing to
the frequency response..looks broken to me..
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Dear Marcus Leech,
Thanks very much for your response.
I use RFX2400 daughterboards and their TX/RX ports.
A attenuator is added between the transmitter and receiver boards now. And
to simplify the test, I use a constant source at the transmitter side.
Here is my GRC flow graph:
http://old.na
On 10/27/10 1:23 PM, Marcus D. Leech wrote:
Looking at the flow-graph, it seems like the modulation "bits" are
running at the same rate as the carrier frequency, which won't work--not
even slightly.
Generally in AM/ASK, the modulation frequency is *much* lower than the
carrier frequency, my g
On 10/28/2010 01:25 PM, Brian Padalino wrote:
I don't know where I've been, but this is the first time I've seen
anything about the announcement:
http://www.slashgear.com/intel-stellarton-atom-e600fpga-promises-flexible-embedded-devices-14102251/
While the Atom processor is not very power
gnuradio.org seems to be down
Martin
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i have read all of the "howto" build a signal proccessing block tutorials.
But now i need to have two or more (say two) inputs to my block.
How can i get multiple inputs or how can i construct multiple input streams?
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I don't know where I've been, but this is the first time I've seen
anything about the announcement:
http://www.slashgear.com/intel-stellarton-atom-e600fpga-promises-flexible-embedded-devices-14102251/
While the Atom processor is not very powerful, pairing it with a full
fledged FPGA sounds p
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