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

March 5, 2015

adsb_swr

1090 MHz ADS-B Tuned Antenna SWR Plot

realswr_vs_simulation_2

1090 MHz ADS-B Tuned Antenna SWR Plot

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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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