RTL-SDR Blog V4 USB Dongle With Dipole Antenna Kit

SparkFun RTL-SDR Blog V4 USB Dongle with Dipole Antenna Kit: Next-Generation Software Defined Radio

The RTL-SDR Blog V4 USB Dongle with Dipole Antenna Kit is an upgraded version of the widely used RTL-SDR V3, designed to deliver higher performance, improved frequency stability, and enhanced filtering for software-defined radio applications. Featuring the new R828D tuner chip, the V4 reduces power consumption while improving sensitivity and stability across its wide 500 kHz to 1.766 GHz tuning range. Unlike the V3, the V4 no longer relies on direct sampling for HF reception. Instead, it integrates a built-in upconverter, offering better HF sensitivity, cleaner signals, and adjustable gain control. The dongle also includes a software-selectable 4.5V bias tee (up to 180 mA) to power active antennas and LNAs, making it ideal for advanced users.

Encased in a durable black aluminum enclosure, the V4 provides excellent EMI shielding and passive cooling, ensuring stable performance under continuous operation. The included dipole antenna kit makes setup quick and convenient, allowing users to start scanning and monitoring immediately. Compatible with popular SDR software such as SDR, HDSDR, GQRX, and ADS-B decoding tools, this dongle is perfect for radio scanning, ADS-B aircraft tracking, amateur radio, weather satellites, and general RF signal exploration.

Key Features:

• Wide Frequency Coverage: Tunes from 500 kHz to 1.766 GHz, covering HF, VHF, and UHF bands.
• Enhanced HF Reception: Integrated HF upconverter with better sensitivity and adjustable gain.
• R828D Tuner Chip: Three switchable inputs and triplexer isolation for HF, VHF, and UHF bands with reduced interference.
• High-Precision TCXO: 1 PPM temperature-compensated crystal oscillator ensures excellent frequency stability.
• Built-in LNA & Filters: Improves weak signal reception and minimizes broadcast interference.
• Bias Tee Support: Software-activated 4.5V bias tee supplies up to 180 mA for powering active antennas or LNAs.
• Robust Housing: Black aluminum enclosure provides RF shielding and improved heat dissipation.
• Dipole Antenna Kit Included: Adjustable dipole antenna for quick setup and versatile reception.
• Software Compatibility: Works with SDR, HDSDR, GQRX, ADS-B tools, and other SDR software packages.