GEDOMIS testbed (part 1)

GEDOMIS testbed (part 1)GEDOMIS® (GEneric hardware DemOnstrator for MIMO Systems) is a multi-antenna wireless communication testbed that enables the prototyping and evaluation of physical layer algorithms featuring MIMO techniques. This is feasible thanks to its heterogeneous and reconfigurable structure comprising mixed FPGA and DSP baseband signal processing components, which can be used for the implementation and real-time validation of broadband wireless communication systems. GEDOMIS® is currently hosting an IEEE 802.16e-2005 system (mobile WiMAX) featuring a 2×2 MIMO configuration with a high channel bandwidth of 20 MHz. The physical layer algorithms of the receiver were modeled in Matlab, designed in VHDL and implemented in a real-time FPGA platform from Lyrtech Inc. For more information visit our webpag Source

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Gqrx receiving broadcast FM using RTL-SDR and Funcube Dongle

Gqrx receiving broadcast FM using RTL-SDR and Funcube DongleA short demo video showing reception of wide band broadcast FM using Gqrx SDR and comparing the Funcube Dongle (96 ksps) with an RTL2832U-based DVB-T dongle (running at 900+ ksps). The video also demonstrates switching between two input sources at run time. Gqrx is an open source software defined radio receiver powered by GNU Radio and Qt, read more at: Source

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GEDOMIS testbed (part 2)

GEDOMIS testbed (part 2)GEDOMIS® (GEneric hardware DemOnstrator for MIMO Systems) is a multi-antenna wireless communication testbed that enables the prototyping and evaluation of physical layer algorithms featuring MIMO techniques. This is feasible thanks to its heterogeneous and reconfigurable structure comprising mixed FPGA and DSP baseband signal processing components, which can be used for the implementation and real-time validation of broadband wireless communication systems. GEDOMIS® is currently hosting an IEEE 802.16e-2005 system (mobile WiMAX) featuring a 2×2 MIMO configuration with a high channel bandwidth of 20 MHz. The physical layer algorithms of the receiver were modeled in Matlab, designed in VHDL and implemented in a real-time FPGA platform from Lyrtech Inc. For more information visit our webpag Source

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RTLSDR receiver local 70cm repeater

RTLSDR receiver local 70cm repeaterUsing gqrx to receive a local ham radio repeater. Very poor antenna connection thus a lot of noise. Source

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COSPAS-SARSAT reception with cheap RTL SDR

COSPAS-SARSAT reception with cheap RTL SDRReceiving COSPAS-SARSAT transponder on board of a low earth orbiting satellite on 1544.5 MHz (frequency on the SDR display was not calibrated, please ignore). Using the famous RTL SDR…”the cheapest SDR in town”” for VHF/UHF/SHF covering 64-1700 (up to 2.1 GHz “out of spec” )….this particular one was a Hama Nano. Sorry for the crappy cell phone video :-) More info on: en.wikipedia.org About COSPAR-SARSAT monitoring: Source

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RTLSDR Gqrx receiving lots of temperature sensors

RTLSDR Gqrx receiving lots of temperature sensorsMonitoring 433.9 MHz – picking up plenty of local weather temperature sensors and the likes. Using a newsky dvb-t tuner and a modified version of gqrx that supports rtl sdr. Antenne is a 2m/70cm in my attic. Source

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