Good quality, functional, versatile
Good product. Did exactly what it was supposed to do. Easy set up and connection.
Stephen Lerantges
SparkFun
RTL-SDR BLOG V3 USB Dongle with Dipole Antenna Kit
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The RTL-SDR Blog V3 is a low-cost software-defined radio (SDR) USB dongle bundled with a multipurpose VHF/UHF dipole antenna kit. It receives radio signals a...
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The RTL-SDR Blog V3 is a low-cost software-defined radio (SDR) USB dongle bundled with a multipurpose VHF/UHF dipole antenna kit. It receives radio signals across a wide frequency range — from 500 kHz to 1,766 MHz — and processes them in software on your computer, making it an accessible entry point into SDR experimentation.
The V3 dongle features a temperature-compensated oscillator (TCXO) for frequency stability, a 4.5 V bias tee for powering active antennas, and an aluminium case for passive cooling. HF direct sampling mode extends reception down to 500 kHz without an upconverter.
Key Features
- <1 PPM TCXO – Stable frequency reference without drift
- 500 kHz – 1,766 MHz Range – Wide coverage including HF via direct sampling
- 4.5 V Bias Tee – USB-powered for active antennas and LNAs
- HF Direct Sampling – Receive 500 kHz – 24 MHz without an upconverter
- Aluminium Case – Passive cooling and improved shielding
- R820T2 Tuner – Popular, well-supported tuner IC
- Dipole Antenna Kit Included – Two sets of telescoping antennas with mounts
Specifications
- Tuner – R820T2
- ADC – RTL2832U (8-bit)
- Frequency Range – 500 kHz – 1,766 MHz (500 kHz – 24 MHz in direct sampling mode)
- Bandwidth – Up to 2.4 MHz (stable)
- Antenna Port – SMA female
- Input Impedance – 50 Ω
- Current Draw – 270–280 mA
- Compatibility – Windows (7+), Linux, macOS, Android, Raspberry Pi
Ideal For
- Amateur radio monitoring and experimentation
- Aircraft tracking (ADS-B)
- Weather satellite reception
- Learning about software-defined radio
Resources
Package Contents
- 1× RTL-SDR Blog V3 USB dongle
- 2× Telescoping VHF/UHF antennas (23 cm – 1 m)
- 2× Telescoping antennas (5 cm – 13 cm)
- 1× Dipole antenna base with 60 cm RG174 cable
- 1× 3 m RG174 extension cable
- 1× Flexible tripod mount
- 1× Suction cup mount
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- Impedance
- Impedance is the total opposition a component or circuit presents to alternating current, measured in ohms, combining resistance with frequency-dependent reactance. It appears in many contexts, such as matching a speaker's impedance (for example 4 ohm or 8 ohm) to an amplifier or the input and output impedance of signal circuits, and a correct match helps avoid weak signals, distortion or damage.
- ppm
- ppm means parts per million, a common way to express very small gas concentrations in air. For CO₂ sensors, the ppm range tells you what levels the sensor can measure, such as normal indoor air through to poorly ventilated spaces.
- SMA
- SMA is a small threaded coaxial (RF) connector widely used to attach antennas and other radio-frequency cables. A device with SMA antenna ports needs antennas or pigtails with matching SMA connectors, or a suitable adapter, to connect to them.
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RTL-SDR Blog V3 USB Dongle Datasheet
Datasheet · 973.3 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 611.2 KB · Click any page to view full size
