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. Compared to R820T-based devices, this E4000-based SDR excels at sensitivity at <500mhz and>1500MHz, and is capable of far higher frequencies, up to approximately 2350MHz. There is a small gap in frequency capability near 1100MHz. As such, we do NOT recommend this device for ADS-B usage. For ADS-B, consider NESDR SMArt, also available on Amazon.For full product specifications, please visit our website at nooelec.com Included: ✔ NESDR SMArt XTR SDR in silver brushed aluminum enclosure SDR Specifications: ✔ RTL2832U Demodulator/USB interface IC ✔ E4000 tuner IC ✔ 0.5PPM, ultra-low phase noise TCXO ✔ 2 RF-suitable voltage regulators ✔ Shielded primary inductor ✔ Integrated custom heatsink✔ 2 silicone pads ✔ Female SMA antenna input ✔ High-quality silver brushed aluminum enclosure ✔ Frequency capability approximately 65MHz-2300MHz, with small frequency gap near 1100MHzTCXO 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)