137 MHz BP Filter and Noise Source analysed with RTL-SDR Dongle
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bandpass filter
RTL-SDR Filter Cards | Multichannel SDR Transceivers and Audio Arrays
RTL-SDR.COM Broadcast FM Band-Stop Filter (88-108 MHz Reject) Now for Sale + RTL-SDR V3 Dongle Availability
SDR
A self contained ADS-B Receiver using a Raspberry Pi and RTL-SDR
RTL-SDR Tutorial: Measuring filter characteristics and antenna VSWR with an RTL-SDR and noise source