On Thu, Sep 10, 2009 at 07:26:56PM -0700, adib_sairi wrote:
>
> besides my last two post (which unfortunately i still don't have any answer)
> , i have another question.. any help will be very appreciated.
>
>
> if we transmit using benchmark_tx.py, we can change the amplitude of the
> transmiss
besides my last two post (which unfortunately i still don't have any answer)
, i have another question.. any help will be very appreciated.
if we transmit using benchmark_tx.py, we can change the amplitude of the
transmission by changing the --tx-Amplitude and this parameter max value is
9830.1
Hi All,
Here I have a couple of questions during my project:
1, I am receiving "uU"(usrp underrun) when I am transmitting, it seems
that the data rate I feed to DAC is less than 128MS/s? I've already set
the maximum interpolation rate at 512. What's the problem might be? I
guess the input dat
On Wed, Sep 09, 2009 at 10:30:16PM -0700, DDKK wrote:
>
> I am wondering if this is some kind of pythonpath setup error that I'm
> making.
>
> I get the same error if I just import the gr definition from gnuradio in the
> python interpreter. It gives me the same error message the first time,
> a
The short answer is, because our customers require it!
The longer answer is that these are strictly low-earth-orbit
spacecraft, communicating through a relay in geosync. So,
the round-trip time is dominated by the round-trip time to
geosync, which is around 250 mS. The new modems include all
so
On Thu, Sep 10, 2009 at 12:13:21PM +0200, Dimitris Symeonidis wrote:
> I have noticed that you can't add a message queue to a GRC flowgraph. Why is
> that? Is the reason technical, or that no one bothered to write the .xml
> file?
>
> And is the message queue going to be deprecated in gnuradio 3.3
In the current master, there is a message source and message sink block
in grc. And you can create custom blocks with ports of type "msg" and
connect them! However, blocks with both a msg input AND a msg output are
currently unsupported.
Also, It should be noted that this functionality will li
Thanks Dimitris!
I'll run your code w/ my USRP, but I don't have enough knowledge to fix it.
Please let me known when you finish the transmit path - I think there is
no free radio in Brazil doing RDS.
Rafael Diniz
> Hi Rafael, I'm the current developer of GR-RDS.
>
> The RDS signal has to be mixe
Hi
I found that an fft_filter is being used in the receiver! I did not
understand its use though. Can anyone please help me in here? I am trying
to transmit and receiver audio instead of usrp. How helpful is this filter
in my case?
Thanks
Udaya
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Hi all.
At work we're building some new modems for spacecraft communication,
and I've been tasked with coming up with a test set or tool for
measuring latency through each side of the modem (modulator and
demodulator).
I'd like to use GnuRadio 2 and a USRP2 to do some or all of this.
I was
I have noticed that you can't add a message queue to a GRC flowgraph. Why is
that? Is the reason technical, or that no one bothered to write the .xml
file?
And is the message queue going to be deprecated in gnuradio 3.3?
Thank you
Dimitris Symeonidis
"If you think you're too small to make a diff
Hi Rafael, I'm the current developer of GR-RDS.
The RDS signal has to be mixed with the mono, pilot tone and stereo signals
BEFORE fm modulation.
Also, be aware that the transmit path is not working yet, I'm debugging it
when I have some spare time to fix it. Any help is welcome.
You should use
Eric
Just a quick thank you for your help.
I had only a fuzzy idea about how forecast works and your explanation that
audio_sink is rate-limiting meant it fell into place. I still use throttle
to limit the input rate from file because (like you) I am using GUI elements
at several stages in the pr
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