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RTL-SDR Tutorial: Measuring filter characteristics and antenna VSWR with an RTL-SDR and noise source

February 27, 2015

fm_bandstop_graph

FM bandstop filter response compared to the baseline response over 50 MHz to 1500 MHz

excel_screenshot

fm_bandstop_attenuation

FM bandstop filter response compared to the baseline response over 50 MHz to 1500 MHz

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What is RTL-SDR

The RTL-SDR is an ultra cheap software defined radio based on DVB-T TV tuners with RTL2832U chips. The RTL-SDR can be used as a wide band radio scanner. It may interest ham radio enthusiasts, hardware hackers, tinkerers and anyone interested in RF.

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