osmocom-sdr

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904 discussions

Uccess! My first librtlsdr application
by Neoklis Kyriazis 05 Aug '16

05 Aug '16

Hi First, my thanks to everyone involved with the development and release of librtlsdr. Well done. :-) I always wanted to try my hand building an SDR application and so I installed the latest librtlsdr and started writing code to test the various functions in the librtlsdr library. Having gotten familiar with this, I started work on modifying my old Wx satellite APT image decoder app, xwxapt, to support an rtlsdr receiver beside the linear VHF receiver it was written for. Its always difficult to extensively modify an existing app, but in the end it all worked out well and xwxapt can now receive the old APT format images from Wx sats with the rtl-sdr receiver. In the process, I modified xwxapt to include controls for the rtl-sdr unit, display an FFT-derived spectrum of the 2.4kHz sub-carrier and a spectrum of the baseband O/P of the RTL2832 device. Images are decoded in real time and displayed incrementally in xwxapt's window. xwxapt is available under the GPL at: http://www.5b4az.org/ in Weather Imaging->Image Decoders menu. -- Best Regards Neoklis - Ham Radio Call:5B4AZ http://www.5b4az.org/

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[Help] first steps with sdrangelove
by loic.cloatre 02 Aug '16

02 Aug '16

Hello, I have installed all the thing and I get the main API: How to configure in order to see LoRa trafic? (if I click on aquisition, I get an error message "no sample source configured") Maybe a quickstart help exists? Thanks, Loïc

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Compiling rtlsdr for windows.
by Bill Gaylord 01 Aug '16

01 Aug '16

I know there is a precompiled binary but it is 2 years out of date. Anyone have any luck compiling it for 32 bit windows? (I need some functionality that was just recently added in)

2 1

PATCH: Fixed arbitrary resampling in rtl_fm
by f.meyer-hermann＠gsg-elektronik.de 25 Jul '16

25 Jul '16

As already on github, I fixed rtl_fm's arbitrary resampling by fixing the output buffer length and allowing upsampling by copying the audio data since the algorithm cannot work in-place. I have attached a patch, if you are interested to integrate it into the official branch. Regards, Ferdinand Meyer-Hermann

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post a new release
by Joseph Poirier 22 Jul '16

22 Jul '16

If would be nice to have a newer official release available; installation using the package manager on many Linux distros gets a two year old librtlsdr that's missing the rtlsdr_set_tuner_bandwidth function (added about nine months ago), as well as, other nice updates and fixes. cheers, joe

6 12

Fwd: Patch for osmocom-sdr
by Mike Davis 24 Jun '16

24 Jun '16

Hi I can't sensibly use git-send-email as it wants to do the actual emailing on my behalf, and I use Gmail for this account. I tried sending via git-send-email directly to the list MX and SORBS blocked me, so I've attached the three patches as formatted by 'git format-patch' here. Regards Mike On Fri, Jun 24, 2016 at 9:46 AM, Sylvain Munaut <246tnt(a)gmail.com> wrote: > Hi, > > > Initially I tried to do a Pull Request on the Github repository, > > Yeah we don't use github. > > tbh I'm not even sure who's doing the mirror there ... > > > but was > > told I should send a patch to this mailing list. What format should I > use to > > send the patch? > > See the doc for git-send-email > > You create a git commit with your patch then use that to send it by > mail to the list and it will handle the formatting for you and making > sure the patch isn't mangled by your mail client. > > Cheers, > > Sylvain >

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Patch for osmocom-sdr
by Mike Davis 24 Jun '16

24 Jun '16

Hi I have a patch for the gr-osmosdr project that I am hoping you will be able to merge into the repo. The patch makes it possible to choose which hackrf is opened by the sink component. It also moves the hackrf_open code into a separate, shared source file that is used by both the sink and the source components. Initially I tried to do a Pull Request on the Github repository, but was told I should send a patch to this mailing list. What format should I use to send the patch? Regards Mike

2 1

merge request - update to soapy_support
by Josh Blum 24 Jun '16

24 Jun '16

Hey list, I've pushed some minor fixes to the soapy_support branch. With these fixes I was able to use the siggen gui app with the LimeSDR. More details in the commits. http://git.osmocom.org/gr-osmosdr/log/?h=soapy_support I would appreciate if this can be merged into master. Thanks! -josh

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Patch for gr-osmosdr
by Mike Davis 23 Jun '16

23 Jun '16

1 0

Re: [PATCH] librtlsdr.pc: use "Require: libusb-1.0" instead of "Libs: -lusb-1.0"
by Bjørn Forsman 07 Jun '16

07 Jun '16

On 31 October 2014 at 08:54, Bjørn Forsman <bjorn.forsman(a)gmail.com> wrote: > Using "Libs: -lusb-1.0" assumes the linker knows where libusb is > located. Using "Require: libusb-1.0" is more correct as it uses > pkg-config to locate the required package and provides correct flags > (both -l and -L). > > This fix is needed to build programs that depend on librtlsdr on > NixOS[1]. (Because there is no "default" linker serach path on NixOS.) > > [1]: http://nixos.org/ > --- > librtlsdr.pc.in | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/librtlsdr.pc.in b/librtlsdr.pc.in > index 5e55049..76b4190 100644 > --- a/librtlsdr.pc.in > +++ b/librtlsdr.pc.in > @@ -7,5 +7,6 @@ Name: RTL-SDR Library > Description: C Utility Library > Version: @VERSION@ > Cflags: -I${includedir}/ @RTLSDR_PC_CFLAGS@ > -Libs: -L${libdir} -lrtlsdr -lusb-1.0 > +Libs: -L${libdir} -lrtlsdr > Libs.private: @RTLSDR_PC_LIBS@ > +Requires: libusb-1.0 > -- Ping. (Oh, and please fixup my commit message typo (s/serach/search/) if/when you apply it.) Best regards, Bjørn Forsman

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