After uprading from 3.1.3 to 3.2.2 and also switching from mac osx to
ubuntu 9.04 (significantly easier gnuradio install), i still have the
spike problem.
I was using ctrl+C to end the program and the code looked like this:
if __name__ == '__main__':
try:
my_top_block().run()
exce
Mattias Kjellsson wrote:
> Hi,
>
> I think that a similar question was raised a while back, and that the
> ticket for fixing it is still open.
>
> http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg18067.html
>
> BR
> //Mattias
So there is a temporary workaround? Im not sure if i understa
has anybody else experienced this problem? I am working on receiving an
RF signal, performing processing on the data, and then retransmitting
it, using a pair of RFX400s. On the TX side, I always get this big
carrier spike, even with no input to the RX side. Ive tried just
straight feeding t
cool, I got it working, thanks for the explanation!
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Jesper M. Kristensen wrote:
> Hello
>
> Allow me to ask whether someone knows about the delay of the RX and TX
> DSP
> chains from the input of a LFRX daughterboard to the output of the DSP
> chain
> i.e input to the RX buffer and vice versa in the TX chain?
> I'm interested in the delay at a de
I want to use AGC to control RF output level to be at a set value no
matter what the input level. I see the gr.agc_cc module has the
following settings and defualt values:
rate (1e-4)
ref (1.0)
gain (1.0)
max_gain (0.0)
can somebody explain what these settings do? I assume reference sets
the des
hjaffer wrote:
> Thanks for responding but I couldn't get your code to work. I get the
> following errors when I incorporate your code into various files:
>
> AttributeError: 'app_gui' object has no attribute 'connect'
> AttributeError: 'gr_top_block_sptr' object has no attribute
> 'source_usrp'
hjaffer wrote:
> Hello All,
>
> I am using the Python example program "usrp2_siggen_gui.py" and wanted
> to
> save the transmitted data to a file. I added the following lines:
>
> self.u = usrp2.source_32fc(self.tb.interface_name(),
> self.tb.mac_addr())
> self._sink = gr.file_si
Is there a function that simply looks at a steam of data and returns the
maximum value for amplitude within a certain number of samples? I
looked at gr_peak_detector, but it expects the peak parameters and
returns true or false, not exactly what i need.
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Ulrika Uppman wrote:
> Hi everyone!
>
> When transmitting with the USRP2 and the RFX400 daughterboard, we get a
> very significant frequency spike at the tuned center frequency. The
> level of the spike is almost as high as the signal level, and it will
> appear even when transmitting a 0-ampli
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