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Software Defined Radio Receiver USB Stick - RTL2832 w/R820T : ID 1497 : $27.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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SDR USB Dongle - TXAdvance
Nooelec - Nooelec NESDR Nano 3: Tiny RTL-SDR USB Set w/ 0.5PPM TCXO, SMA Input, Aluminum Enclosure and Custom Heatsink - DVB-T Receivers - USB OTA Receivers
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Nooelec - Nooelec NESDR Mini+ Al - 0.5PPM TCXO USB RTL-SDR Receiver (RTL2832 + R820T) w/ Antenna and Remote Control, Installed in Aluminum Enclosure