Hello,
When I use heatmap.py with output from rtl_power I get regularly spaced
vertical lines that do not appear to be related to any signal. They
look they like repeat at the dongle bandwidth (2048000Hz in this case).
The crop option for rtl_power reduces the presence but I am not sure f
that is intended by that option. Even at -c of 70% they are still there
(see attachment).
Is this because of small bin width? If I use a larger bin (32k) they
are still there. In this case there is no frequency legend along top so
can't compare if they happen more often.
Are these lines to be expected?
John
After pulling gr-fosphor `master` today and compiling against the latest
GNURadio, I noticed that it failed when attempting to link against
libgnuradio, due to missing pmt symbols. The attached one-line patch fixes
the issue, but I imagine would break compilation against older GNURadio
releases.
If there is a better way for me to submit this patch, please let me know.
I had previously emailed one of the gr-fosphor developers with a separate
issue regarding libpng issues out of ignorance of this mailing list. I
don't want to disturb you developers any more than need be, so if there is
a better forum than this for patches/pull requests, I am more than happy to
use it.
-E
Hi there,
In debian, sdrangelove is having some build issues on mipsel [0].
At first, there was an issue regarding the '-msse2' switch.
If I delete the switch, then another build error happens:
======== 8< ========
[...]
[ 21%] Building CXX object CMakeFiles/sdrbase.dir/sdrbase/dsp/interpolator.cpp.o
/usr/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_MULTIMEDIA_LIB
-DQT_NETWORK_LIB -DQT_NO_DEBUG -DQT_OPENGL_LIB -DQT_WIDGETS_LIB
-DUSE_FFTW -Dsdrangelove_EXPORTS -g -O2 -fstack-protector-strong
-Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -O3 -DNDEBUG
-fPIC -isystem /usr/include/mipsel-linux-gnu/qt5 -isystem
/usr/include/mipsel-linux-gnu/qt5/QtCore -isystem
/usr/lib/mipsel-linux-gnu/qt5/mkspecs/linux-g++ -isystem
/usr/include/mipsel-linux-gnu/qt5/QtWidgets -isystem
/usr/include/mipsel-linux-gnu/qt5/QtGui -isystem
/usr/include/mipsel-linux-gnu/qt5/QtOpenGL -isystem
/usr/include/mipsel-linux-gnu/qt5/QtMultimedia -isystem
/usr/include/mipsel-linux-gnu/qt5/QtNetwork
-I/tmp/buildd/sdrangelove-0.0.1.20140824/obj-mipsel-linux-gnu
-I/tmp/buildd/sdrangelove-0.0.1.20140824/include
-I/tmp/buildd/sdrangelove-0.0.1.20140824/include-gpl -fPIC -o
CMakeFiles/sdrbase.dir/sdrbase/dsp/interpolator.cpp.o -c
/tmp/buildd/sdrangelove-0.0.1.20140824/sdrbase/dsp/interpolator.cpp
In file included from
/tmp/buildd/sdrangelove-0.0.1.20140824/sdrbase/dsp/interpolator.cpp:4:0:
/tmp/buildd/sdrangelove-0.0.1.20140824/include-gpl/dsp/interpolator.h:4:23:
fatal error: immintrin.h: No such file or directory
#include <immintrin.h>
^
compilation terminated.
[...]
======== 8< ========
Do you have any hint for this?
Thanks, best regards.
PS: Please keep me in CC, i'm not subscribed.
[0] https://buildd.debian.org/status/fetch.php?pkg=sdrangelove&arch=mipsel&ver=…
--
Arturo Borrero González
Oops, forgot to CC the mailing list.
On 09/21/2015 12:47 PM, Nikolay Dimitrov wrote:
> Hi Dimitri,
>
> On 07/04/2015 03:42 PM, Nikolay Dimitrov wrote:
>> Add scanner progress, including signal and squelch levels.
>> Rename demod_state->conseq_squelch to demod_state->squelch_conseq.
>>
>> The scanner progress feature can be tested like this:
>>
>> ./rtl_fm -f 144.000M:146.000M:25k -M fm -s 48k -l 100 -t 5 | aplay \
>> -r 48k -f S16_LE -t raw -c 1
>>
>> Signed-off-by: Nikolay Dimitrov <picmaster(a)mail.bg>
>> ---
>> src/rtl_fm.c | 43 +++++++++++++++++++++++++++++--------------
>> 1 file changed, 29 insertions(+), 14 deletions(-)
>
> Can you please take a look at this patch and decide whether it's worthy
> of applying to the rtl-sdr tree?
>
> Thanks in advance. Regards,
> Nikolay
This just removes few annoying warnings.
About the conversion of string to signed int.
- dev_index = boost::lexical_cast< unsigned int >( hackrf_serial );
+ dev_index = boost::lexical_cast< int >( hackrf_serial );
hackrf_device_list_open checks if value of dev_index is out
of range (eg negative) and returns proper error. In future negative value
can be used for something so this check is not necessary nor wanted.
P
Hi,
there is in gr-osmosdr a lot of code like:
hackrf_source_c::~hackrf_source_c ()
{
...
free(_buf);
_buf = NULL;
}
}
Setting value in destructor have sense in two case:
- they are used in some way in destructor of parent class
- You set then to something like 0xDEADBEEF and when pointer
from already destroyed class is used it will cause segfault.
Setting value to NULL is contraproductive because there is a lot of
checks if value is not NULL, this actually can hide some troubles of
calling something using already freed pointer.
I'm suggesting to remove this kind of code. I will prepare patch but now
I'm waiting if those two pending patches I have send before would be
accepter or not.
Is there any opinion which oppose previous claim?
With best regards,
JP.
Hi. Today I installed latest gr-osmosdr. I want to run osmocom_fft and view
the recorded file in "inspectrum".
Osmocom_fft starts, runs, knows there is a BladeRF available and does work.
only thing is that it does not allow tuning lower then 300 MHz as if the
transverterboard is unknown to the osmocom_fft.
I tried to start osmocom_fft with -a balderf but that does not help.
If I set it to for example 145M it gives this message:
Failed to set out of bound frequency: 1.45e+08
libbladerf is updated last weekend.
Any ideas on this ?
Thanks,
Ben
Hi List!
I'm new here, so I hope I'm asking for help in the right place. I'm
trying to build and application that read I/Q data from rtl_tcp using
Delphi. For beginning, I'm trying to set some params for rtl_tcp using
my remote app. I found the source code of rtl_tcp and I could identify
some information about what is each command, like 0x01 (hex) is to set
frequency, 0x02 to set sample, etc....
What I don't undertand is the structure of parameters. Each parameter is
one byte? If not, how parameters are sent? Do I need to send char to end
command, like end of line or carrier return? Is not, what's the correct
structure for sending commands?
For example:
For setting gain, send one byte with 0x04 and another byte indicating
the gain index.
Tks!
Jonis Maurin Ceará
