Hi,
this series of patches add BW setting support for R820T and interface to
set BW explicitly. This work is partialy based on some patches flying
around namely Alexander Kurpiers. Testing have been done for some
dongles at it looks good except for rally narrow BW setting.
No testing of BW setting have been performed for other RF frontends i
have only R820T now.
JP
I would like to humbly request support for hackrf antenna power in gr-osmosdr. At runtime preferably, or at least an init string flag to control it
(hackrf=0,antenna_power=1 for example). The function call seems to be hackrf_set_antenna_enable() but it's not exposed in gr-osmosdr as far as I can tell.
I have some dev experience (but not in C) but I'm falling short trying to understand the code and add the feature myself. If someone wants to provide some "ELI5" guidance I'll be happy to give it another go.
Having this feature would open up the powered antenna feature to users of gr-osmosdr such as gnuradio, gqrx, and the list goes on (big win!)
Reference:
https://www.mail-archive.com/hackrf-dev@greatscottgadgets.com/msg00423.html
Thanks!
Brad
Hi all,
anyone could tell me how to compile rtl-sdr on windows using cygwin?
i have all libs but i seem not to get any dlls and programs back.
used the normal cmake and the method using a configure script.
greetings,
simon
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Due to discussion I've witnessed with zero_chaos on #gnuradio:
a patch to make it possible to tell CMake where to put udev rules.
Greetings,
Marcus
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I am struggling with using some of the R820T-based dongles I bought (http://www.dx.com/p/170541).
I am wondering where the specs from http://sdr.osmocom.org/trac/wiki/rtl-sdr comes from: although
I am told that the operating frequency range is 24 - 1766 MHz, I am struggling to lock
at 1574.2 MHz. From the datasheet (http://superkuh.com/gnuradio/R820T_datasheet-Non_R-20111130_unlocked.pdf)
we are already well above the "official" operating frequency of this receiver frontend, but
I nevertheless attempted to reproduce with this dongle the GPS decoding scheme I successfully implemented
with E4k based dongles (for teaching purposes, I'd need a reliable supply of dongles but I only have
a couple of E4k based dongles left, one of them probably damaged since the frontend is overheating).
I did try to replace L9 (RF input), L2 + L6 (RF filters) and most significantly the pump charge
RC circuit R8/C16 from the datasheet with high quality RF-grade components, but only managed to
extend by ~60 MHz the locking range of the PLL, from 1.500 to 1.560 GHz. I am unable to to gain the
last 20 MHz of reliable locking to receive GPS !
The way I measure is trivial: a frequency synthesizer generates a single tone (-35 dBm) and I look
at the gnuradio FFT output. After a couple of seconds, the PLL unlocks and the visible single tone
vanishes from the FFT. At 1.5 GHz the measurement is unreliable, lasts for about 1-10 seconds
at 1.55 GHz, and a second at most at 1.56 GHz. The dongles never lock at 1.57 GHz, let alone 1.5742 GHz.
I attempted the experiment with 3 dongles (of the 12 I have) so something is definitely wrong with
either the layout of the PCB, or the information on the web page.
Thanks for any info or which component to upgrade to extend the operating range (by only another 30 MHz !),
JM
--
JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 32 av. observatoire, 25044 Besancon, France
make produces the following...i have tried the main and mirror to see if
there was a difference....
running raspian, the same instructions worked before...however im stuck in
my tracks with this one
Scanning dependencies of target convenience_static
[ 5%] Building C object
src/CMakeFiles/convenience_static.dir/convenience/convenience.c.o
Linking C static library libconvenience_static.a
[ 5%] Built target convenience_static
Scanning dependencies of target rtlsdr_shared
[ 10%] Building C object src/CMakeFiles/rtlsdr_shared.dir/librtlsdr.c.o
[ 15%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_e4k.c.o
[ 20%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_fc0012.c.o
[ 25%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_fc0013.c.o
[ 30%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_fc2580.c.o
[ 35%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_r82xx.c.o
Linking C shared library librtlsdr.so
[ 35%] Built target rtlsdr_shared
Scanning dependencies of target rtl_adsb
[ 40%] Building C object src/CMakeFiles/rtl_adsb.dir/rtl_adsb.c.o
Linking C executable rtl_adsb
[ 40%] Built target rtl_adsb
Scanning dependencies of target rtl_eeprom
[ 45%] Building C object src/CMakeFiles/rtl_eeprom.dir/rtl_eeprom.c.o
Linking C executable rtl_eeprom
[ 45%] Built target rtl_eeprom
Scanning dependencies of target rtl_fm
[ 50%] Building C object src/CMakeFiles/rtl_fm.dir/rtl_fm.c.o
Linking C executable rtl_fm
[ 50%] Built target rtl_fm
Scanning dependencies of target rtl_power
[ 55%] Building C object src/CMakeFiles/rtl_power.dir/rtl_power.c.o
Linking C executable rtl_power
[ 55%] Built target rtl_power
Scanning dependencies of target rtl_sdr
[ 60%] Building C object src/CMakeFiles/rtl_sdr.dir/rtl_sdr.c.o
Linking C executable rtl_sdr
[ 60%] Built target rtl_sdr
Scanning dependencies of target rtl_tcp
[ 65%] Building C object src/CMakeFiles/rtl_tcp.dir/rtl_tcp.c.o
/home/davinci/librtlsdr/src/rtl_tcp.c:28:23: fatal error: arpa/inet.h: No
such file or directory
compilation terminated.
src/CMakeFiles/rtl_tcp.dir/build.make:54: recipe for target
'src/CMakeFiles/rtl_tcp.dir/rtl_tcp.c.o' failed
make[2]: *** [src/CMakeFiles/rtl_tcp.dir/rtl_tcp.c.o] Error 1
CMakeFiles/Makefile2:355: recipe for target
'src/CMakeFiles/rtl_tcp.dir/all' failed
make[1]: *** [src/CMakeFiles/rtl_tcp.dir/all] Error 2
Makefile:113: recipe for target 'all' failed
make: *** [all] Error 2
Hi,
I am a rookie playing with SDR, and I have installed the driver with zadig
properly I think, then I try to use rtl_test.exe, the error is like
*Found 2 devices:*
*0: ezcap usb2.0 DVB-T/DAB/FM dongle*
*1:ezcap usb2.0 DVB-T/DAB/FM dongle*
*failed to open rtlsdr device #0*
Can anyone help? I would really appreciate that
Thanks,
Benjamin
Has any one used the Murata DNT 900 with a raspberry pi
To receive data from the iron ert?
It seems to have a little more range than the others I've been looking into.
Just curious
Al