RTL SDR V4 - Now with Built-In HF Upconverter + More Features

RTL-SDR Blog V4, listen again - JRMora, humor gráfico

HF Reflection? : r/RTLSDR

RTL-SDR Blog V4, Better Than V3? (review)

WA3TFS SDR Upverter Design - Land Boards Wiki

The Hobbyists Guide to the RTL-SDR Really Cheap Software Defined Radio ( PDFDrive ) - Radiodifusao

SigintOS: A Wireless Pentest Distro Review, by Tomas C.

MSI.SDR Panadapter SDR Receiver

SDR Primer Part 2: Exploring the world of SDRs for $200 or less

Ham It Up v1.3 - Listen to HF on Your RTL-SDR, No case Assembled PCB

Ham It Up Plus v2 - Extend the Range of Your RTL-SDR, NESDR or Other Radio Down to 300Hz. HF/MF/LF/VLF/ULF Upconverter and Panadapter w/TCXO & Switchable LNA/Passthrough Options - Nooelec