osmocom-sdr November 2017

osmocom-sdr@lists.osmocom.org

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gr-osmosdr: add clock_source= parameter
by Michael Loeffler 26 Mar '21

26 Mar '21

Hello, the attached patch allows to set the clock_source on uhd devices in programs like gqrx. Bye

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RE: SDR board design for hand Held tactical SDR
by Shiv Shankar Gautam 05 Dec '17

05 Dec '17

Waiting for your response. Warm Regrads, Shiv Gautam | Manager Communication Systems -------------------------------------------------------------------------- -------------------------- The Tata Power Company Limited Strategic Engineering Division (Tata Power SED) 42 - 43 Electronics City Hosur Road Bengaluru 560 100 India Tel: +91 80 6785 4501 | Fax: +91 80 6785 9901 | Mobile: +91 74110 01394 Website: www.TataPowerSED.in <http://www.tatapowersed.in/> From: Shiv Shankar Gautam [mailto:ssgautam@tatapowersed.com] Sent: 21 November 2017 10:01 To: 'osmocom-sdr(a)lists.osmocom.org' Subject: SDR board design for hand Held tactical SDR We are looking for SCA compliance SDR hardware design. Please send us the design Warm Regrads, Shiv Gautam | Manager Communication Systems -------------------------------------------------------------------------- -------------------------- The Tata Power Company Limited Strategic Engineering Division (Tata Power SED) 42 - 43 Electronics City Hosur Road Bengaluru 560 100 India Tel: +91 80 6785 4501 | Fax: +91 80 6785 9901 | Mobile: +91 74110 01394 Website: www.TataPowerSED.in <http://www.tatapowersed.in/> *Disclaimer* ------------------------------------------------------------ Notice: This e-mail and / or attachments (communication) may contain information that is confidential and proprietary to The Tata Power Company Limited, Strategic Engineering Division (Tata Power SED). If you are not the intended recipient of this communication, please do not use or disseminate the information contained therein, notify the sender by e-mail or telephone and delete the communication (permanently) from your system. Any information in this communication that does not relate to the official business of Tata Power SED shall be understood as neither given nor endorsed by it. Please note that e-mails are susceptible to change and Tata Power SED shall not be liable for the improper or incomplete transmission of the information contained in this communication nor for any delay in its receipt. This communication is not guaranteed to be free from computer viruses and it is recommended that you check for all viruses before download. Print this communication only if absolutely essential. Thank you for your co-operation. ------------------------------------------------------------

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Modulation Format Enquiry
by Shuai Sun 23 Nov '17

23 Nov '17

Hello Under gnuradio platform, when I send a pure sinusoid using gr-osmocom, what is the modulation format that osmocom uses? Thank you very much. Regards Shuai

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SDR board design for hand Held tactical SDR
by Shiv Shankar Gautam 21 Nov '17

21 Nov '17

We are looking for SCA compliance SDR hardware design. Please send us the design Warm Regrads, Shiv Gautam | Manager Communication Systems -------------------------------------------------------------------------- -------------------------- The Tata Power Company Limited Strategic Engineering Division (Tata Power SED) 42 - 43 Electronics City Hosur Road Bengaluru 560 100 India Tel: +91 80 6785 4501 | Fax: +91 80 6785 9901 | Mobile: +91 74110 01394 Website: <http://www.tatapowersed.in/> www.TataPowerSED.in *Disclaimer* ------------------------------------------------------------ Notice: This e-mail and / or attachments (communication) may contain information that is confidential and proprietary to The Tata Power Company Limited, Strategic Engineering Division (Tata Power SED). If you are not the intended recipient of this communication, please do not use or disseminate the information contained therein, notify the sender by e-mail or telephone and delete the communication (permanently) from your system. Any information in this communication that does not relate to the official business of Tata Power SED shall be understood as neither given nor endorsed by it. Please note that e-mails are susceptible to change and Tata Power SED shall not be liable for the improper or incomplete transmission of the information contained in this communication nor for any delay in its receipt. This communication is not guaranteed to be free from computer viruses and it is recommended that you check for all viruses before download. Print this communication only if absolutely essential. Thank you for your co-operation. ------------------------------------------------------------

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rtl_fm bias tee
by vk4tec＠tech-software.net 19 Nov '17

19 Nov '17

Hello I am installing a satgate on the raspberry pi with an rtl dongle I use the rtl_fm from the sources and I get an error about bias tee I have had to use another source Here is my install script #!/bin/sh clear echo "VK4TEC SATGATE install" echo " " #sudo apt-get update #sudo apt-get install cmake build-essential libusb-1.0-0-dev git clone https://github.com/niofis/rtl-sdr.git cd rtl-sdr/ mkdir build cd build cmake ../ make sudo make install sudo ldconfig git clone https://www.github.com/wb2osz/direwolf cd ~/direwolf make sudo make install make install-rpi make install-conf cd ~ sudo mv sdr.old sdr.confcd ~ sudo cp sdr.conf sdr.old cd ~ sudo apt-get uninstall rtl-sdr sudo apt-get install rtl-sdr sudo apt-get install librtlsdr-dev /usr/bin/rtl_fm -f 145.825M - | direwolf -t 0 -dii -c sdr.conf -r 24000 -D 1 - Andrew Rich Nov 2017

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[PATCH] lib: fix regression on Fitipower FC0012
by David Kozub 15 Nov '17

15 Nov '17

The commit ba64a745 fixed rtlsdr_set_gpio_output() but also caused librtlsdr to stop working with (at least some) dongles with the FC0012 tuner. It seems that the FC0012 is connected to GPIO 4 while rtlsdr_open() assumes it's connected to GPIO 5. Before ba64a745 the bug in rtlsdr_set_gpio_output() caused GPIOs 3 and 4 to be set low and so everything worked. This changes the GPIO used in rtlsdr_open() from 5 to 4. At least on my dongle this fixes the regression. --- src/librtlsdr.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/librtlsdr.c b/src/librtlsdr.c index b369a5d..4fb2128 100644 --- a/src/librtlsdr.c +++ b/src/librtlsdr.c @@ -1565,11 +1565,11 @@ int rtlsdr_open(rtlsdr_dev_t **out_dev, uint32_t index) } /* initialise GPIOs */ - rtlsdr_set_gpio_output(dev, 5); + rtlsdr_set_gpio_output(dev, 4); /* reset tuner before probing */ - rtlsdr_set_gpio_bit(dev, 5, 1); - rtlsdr_set_gpio_bit(dev, 5, 0); + rtlsdr_set_gpio_bit(dev, 4, 1); + rtlsdr_set_gpio_bit(dev, 4, 0); reg = rtlsdr_i2c_read_reg(dev, FC2580_I2C_ADDR, FC2580_CHECK_ADDR); if ((reg & 0x7f) == FC2580_CHECK_VAL) { -- 2.14.2

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[PATCH] Revert "lib: fix direction bit in GPIO code"
by Marcus Müller 07 Nov '17

07 Nov '17

This reverts commit ba64a7459a43652354990855176a7d8dad5b9d54. The mentioned commit leads to nonfunctionality of Fitipower FC0012 dongles (tested by a small horde of students) and doesn't increase functionality on my "RTL-SDR.com" branded R820T-based dongle. --- src/librtlsdr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/librtlsdr.c b/src/librtlsdr.c index b369a5d..6c079a5 100644 --- a/src/librtlsdr.c +++ b/src/librtlsdr.c @@ -570,7 +570,7 @@ void rtlsdr_set_gpio_output(rtlsdr_dev_t *dev, uint8_t gpio) gpio = 1 << gpio; r = rtlsdr_read_reg(dev, SYSB, GPD, 1); - rtlsdr_write_reg(dev, SYSB, GPD, r & ~gpio, 1); + rtlsdr_write_reg(dev, SYSB, GPO, r & ~gpio, 1); r = rtlsdr_read_reg(dev, SYSB, GPOE, 1); rtlsdr_write_reg(dev, SYSB, GPOE, r | gpio, 1); } -- 2.13.6

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osmocom-sdr November 2017