On 12/20/2010 09:03 PM, lishan_wh wrote:
> Hi, I'm trying to use USRP to receive signals and collect the
> samples.Here is the flow graph:
> usrp_source_c-->stream_to_vector-->complex_to_mag-->vector_sink_f dst
> = gr.vector_sink_f() data = dst.data() In my opinion, what stores in
> data should
Hi,
I'm trying to use USRP to receive signals and collect the samples.Here is
the flow graph:
usrp_source_c-->stream_to_vector-->complex_to_mag-->vector_sink_f
dst = gr.vector_sink_f()
data = dst.data()
In my opinion, what stores in data should be the amplitude of the samples.
Hi all,
I am new to gnuradio and stuck with the usrp2 connection for several days...
I looked up tens of search results but no solution yet. Therefore I post my
problem and hope someone could give me a hand:
I am running gnu radio 3.2.2 on ubuntu9.10, and I think gnuradio works fine
because dial_
Currently there is nothing in gnuradio to control the visibility of
symbols. That is, everything in every header file is probably an
exported symbol right now, though in many cases, that may not be desired.
GCC documents what they call "symbol visibility" here (see the macro
towards the bottom): h
Josh:
Do you mean that I should only worry about it only if I'm on Windows,
or do you mean that I should only see it only if I'm on Windows?
Why does it appear intermittently, and not every time?
Thanks.
Steve McMahon
--- On Mon, 12/20/10, Josh Blum wrote:
> From: Josh Blum
> Subject: Re:
On 12/20/2010 01:33 PM, Steve Mcmahon wrote:
> I'm running GNU Radio 3.3.0 on openSUSE 11.2.
> From time-to-time, I get this error message on the console:
>
> gr_vmcircbuf_createfilemapping: createfilemapping is not available
>
See the config/gr_check_createfilemapping.m4
its for windows only
I'm running GNU Radio 3.3.0 on openSUSE 11.2.
>From time-to-time, I get this error message on the console:
gr_vmcircbuf_createfilemapping: createfilemapping is not available
I haven't noticed any causality or pattern as to why/when it appears.
Has anyone seen this before?
What's causing it?
Tha
Okay, I've built gnuradio-next, and the result is the same: it's dying
on the vlen error.
The installed packages are fully updated relative to Angstrom's repos.
I can't seem to locate any further information about the test that is
failing, either.
Does anyone have guidance or thoughts about wher
On 12/20/2010 03:26 PM, Steve Mcmahon wrote:
Hello Marcus:
Thanks a lot for providing the GRC file. I did not realize it was so
complicated to create a SSB-modulated signal. I thought it might be a parameter
of the USRP2 Sink block.
So the USRP2 Sink will always generate a full-modulated (bot
Hello Marcus:
Thanks a lot for providing the GRC file. I did not realize it was so
complicated to create a SSB-modulated signal. I thought it might be a parameter
of the USRP2 Sink block.
So the USRP2 Sink will always generate a full-modulated (both upper- and
lower-sideband) signal? Because i
Hi,
I'm seeing what I think is choppy transmission from a USRP2 with and RFX2400
daughtercard.
I have two USRP2s - one acting as the transmitter and one as the receiver.
When I transmit a continuous tone, the received samples all look fine, no
discontinuities. However, if I transmit canned packet
The input of the adc is between 0 and Vref (i don't know this value). The gain
and the offset are to place the input value between V- and V+ (this values are
chosen by you). The decimation step down the sampling frequency. I know the
operation of the verilog block, but i don't know how to pro
Hi everyone,
I am a bit trying to understand the relationship of the gain,offset and
decimation parameter in the USRP and
what it reflects in the capturing of the files ... If i want to get a proper
output of a particular frequency with proper
output how can i adjust them.
Althou i do realise my
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