NooElec NESDR SMArt Bundle – Premium RTL-SDR w/ Aluminum Enclosure, 0.5PPM TCXO, SMA Input & 3 Antennas. RTL2832U & R820T2-Based


Premium RTL-SDR set, including an aluminum-enclosed SDR, re-designed antenna base, and 3 antenna masts.

3 in stock (can be backordered)


You spoke, we listened! This premium RTL-SDR was designed, developed and fabricated by NooElec in the USA and Canada in order to implement a wide array of feature requests.

SDR improvements:

  • The NESDR SMArt contains the same ultra-low phase noise 0.5PPM TCXO used in our much smaller Nano 2+ (TCXO specifications below), ensuring ultimate tuning stability in nearly any environment.
  • In the quest for lower noise, the power supply section was redesigned to implement an RF-suitable voltage regulator with under 10 µVRMS of noise. That is at least 10x lower than other designs!
  • A quality shielded inductor was used in the power supply to improve EMI rejection.
  • The included aluminum enclosure ensures stray EMI stays where it belongs–away from the sensitive RF circuitry.
  • Lower board-level temperatures further improves the SDR noise floor.

Temperature improvements:

  • A custom heatsink is affixed to the primary PCB with 3M thermal adhesive, to wick heat away from the circuit board and towards the enclosure.
  • 2 pieces of silicone thermal pad spread the rest of the heat away from the device hot spots.
  • Power consumption has been reduced by an average of 10mA, which means less heat is generated compared to other designs.
  • The result is much lower board-level temperatures–increasing stability, improving sensitivity and ensuring maximum frequency range capability. The changes were first simulated, and then field-tested with a Flir E8.

Form factor improvements:

  • The NESDR SMArt was designed to minimize annoying USB port occlusion. We re-designed the SDR from the ground up to ensure the SMArt can be used side by side in any USB-compliant device, including tightly-spaced embedded devices. There is no need to remove the enclosure to run multiple SDRs beside one another!
  • The form factor re-design allowed us to move to the more universal SMA antenna input.

Antenna improvements:

  • The included antenna has been redesigned with a wider base to ensure physical stability with the included longer telescopic antenna mast
  • stronger magnet in the antenna base facilitates a wide range of mounting options
  • Low-loss RG58 feed cable is used instead of higher-loss RG316 and RG174
  • Feed cable increased to 2m (6.5′) for easier installations
  • Male SMA connector on the antenna cable for easy connectivity to the NESDR SMArt and other SMA-input RF devices
  • Three antenna masts are now included! A telescopic mast with a variable frequency capability, a fixed frequency 433MHz (ISM) antenna mast, and a fixed frequency UHF (GSM) antenna mast



  • NESDR SMArt SDR w/ brushed aluminum enclosure
  • Antenna base w/ 2m RG58 cable
  • Telescopic antenna mast (variable frequency)
  • 433MHz (ISM) antenna mast (fixed frequency)
  • UHF antenna mast (fixed frequency)

SDR Specifications:

  • RTL2832U Demodulator/USB interface IC
  • R820T2 tuner IC
  • 0.5PPM, ultra-low phase noise TCXO
  • RF-suitable voltage regulator
  • Shielded primary inductor
  • Integrated custom heatsink
  • Female SMA antenna input
  • High-quality black brushed aluminum enclosure
  • Through-hole direct sampling pads on PCB

SDR TCXO Specifications:

  • Frequency stability: 0.5PPM (max)
  • Phase noise @1kHz offset: -138dBc/Hz (or better)
  • Phase noise @10kHz: -150dBc/Hz (or better)
  • Phase noise @100kHz: -152dBc/Hz (or better)

Antenna Specifications:

  • Wide base with super-strong magnet within base for easy mounting
  • Low-loss RG58 feed cable
  • 2m (6.5′) cable, twice as long as most low cost SDR antennae
  • Heatshrinked male SMA connector for direct connection to the SDR or our other SMA-connected accessories like the Ham It Up


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