For full product details, please visit the product page at nooelec.com We designed this SDR from the ground up in order to develop the best low-cost SDR in existence. The result? A reduction in the noise floor of an AVERAGE of ~3dB over the already high-performing NESDR SMArt (v1-v3)--with an additional always-on bias-tee feature--all in the same fantastic form factor! This premium RTL-SDR was designed, developed and fabricated by Nooelec in the USA and Canada, and comes complete with a full 2-year product warranty. Included: NESDR SMArTee 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 features: The NESDR SMArTee contains the same ultra-low phase noise 0.5PPM TCXO used in our much smaller Nano 3 (TCXO specifications below), ensuring ultimate tuning stability in nearly any environment. In the quest for lower noise, the power supply section utilizes 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. Full ESD circuitry on both the antenna input and the USB port provides protection for your investment, and peace of mind that your SDR will work when you need it most.