RTL-SDR Blog R820T2 RTL2832U 1PPM TCXO SMA Software Defined Radio with 2x Telescopic Antennas
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- Includes 1x RTL-SDR Blog brand R820T2 RTL2832U 1PPM TCXO HF Bias Tee SMA Dongle (V3), 1x 6cm to 20cm telescopic antenna, 1x 20cm to 1.5m telescopic antenna and 1x 4.5cm diameter magnetic mount base with full braid RG174.
- Great for many applications including general radio scanning, air traffic control, public safety radio, ADSB, AIS, ACARS, trunked radio, P25 digital voice, POCSAG, weather balloons, APRS, NOAA APT weather satellites, radio astronomy, meteor scatter monitoring, DAB, or for use as a low cost panadapter with a traditional ham radio.
- Several improvements over generic brands including use of the R820T2 tuner, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, aluminium shielded case with thermal pad for passive cooling, activatable bias tee circuit, thick braid RG174 coax on the antenna base and a copper foil sticker on the antenna base for improved antenna performance.
- Can tune from 500 kHz to 1.7 GHz and has up to 3.2 MHz of instantaneous bandwidth. (HF reception below 24 MHz runs in direct sampling mode)
- The included telescopic antennas are great for beginners! Our long and short antennas cover almost the entire frequency band that is receivable by the RTL-SDR. Our antenna base has a larger more stable 4.5cm diameter and also comes with full braid RG174 coax which is a large improvement over the lower quality cabling used by the generic brands.
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This is an RTL-SDR software defined radio receiver with RTL2832U ADC chip, R820T2 tuner, 1PPM TCXO, SMA F connector and aluminium case with passive cooling. Tunes from 500 kHz to 1.7 GHz with up to 3.2 MHz of instantaneous bandwidth. (HF works in direct sampling mode - V.3 models and above only). Perfect for use as a computer based radio scanner with free software like SDR#, HDSDR, SDR-Radio, Linrad, GQRX or SDR Touch on Android. Works on Windows, MacOS, Linux, Android and even embedded Linux computers like the Raspberry Pi.
Great for many applications including general radio scanning, monitoring air traffic control, public safety, ADS-B aircraft radar, marine AIS, ACARS, trunked radio, P25/MotoTRBO digital voice, POCSAG, weather balloons, APRS, NOAA APT and Meteor M2 weather satellites, radio astronomy, DAB, or for use as a low cost panadapter with a standard ham radio.
Includes two telescopic antennas with magnetic mount. The short antenna is perfect for ADS-B when collapsed and works up to around 230 MHz when extended. The larger antenna is perfect for frequencies between 230 MHz down to 50 MHz. You can improve reception and stability of the large antenna by placing the magnetic base on any metal plate such as a cookie tin lid. For custom antennas note that this dongle has an SMA F connector (not RP-SMA).
This model has several improvements over other models. It uses the improved R820T2 tuner, has a 1PPM TCXO (2 PPM initial offset, 1 PPM temperature drift), has improved component tolerances and an SMA F connector. It also comes with a software activatable bias-tee circuit for powering external devices such as LNA's and active antennas.
Requires USB 2.0 (works on most USB 3.0 ports, but we cannot guarantee it to work on all so please ensure your PC has a USB 2.0 port just in case). Installation on Windows is simple, please Google for the free RTL-SDR Quickstart Guide for installation instructions.
Top Customer Reviews
As for the freq correction (ppm) both my units are ZERO and centered on the freq. I'm really satisfied with this purchase and I would highly recommend getting a pair of these for trunking.
edit I've added some photos, glue glob that made the metal dish to be recessed, and a pic after I reset it. On this antenna base I didn't re glue the magnet as the metal dish makes contact. This isn't a real big deal, any antenna base you get with these dongles are pretty much the same, just slapped together overseas. To get the performance out of them, spend a few minutes to make adjustments, scrap the sticker, metal to metal is the way to go!
Go to the RTL-SDR website for links to the latest software to run with this hardware. There's a ton on great information on SDRs.
If you listen to digital systems, there's software available that will decode digital audio including DMR and P25.
If your taste runs to trunked systems, get two of these to improve your listening experience.
The SDR radio with supplied antenna, beyond the standard UHF/VHF bands, providing a casual radio listener with numerous additional options from listing to stereo FM (see photo) to NOAA Weather Service (see photo) to simultaneous monitoring of all 40 channels in the CB band (see photo). The 24 MHz to 1.7 GHz frequency range of the device not permitting for the listening of general AM broadcast.
The RTL-SDR device and very understandable given a cost of $24.95, not providing any means to decode various digital modes such as C4FM, P25, D-Star ... Since the price of the device and included hardware in the kit permits for a broad range of users, the principle limiter being access to a computer, will not delete any points for not including the necessary driver program and user interface software to control and operate the SDR.
Such device and similar, being optimal for use in advance middle and high school RF projects or part of a greater curriculum with an SDR kit provide to a small group of students (e.g. 4 students per radio). The radio providing an opportunity to learn via interaction of a real, not simulated nature, the general properties of radio to the more mathematical IF and FFT, along with carrier and transmission modes (AM, FM, USB, LSB ...), to include in a direct feedback manner for the student, how alterations in tuning, bandwidth, modes, filter, ... contribute in the received or audible output of the radio. More advance students and limited only by imagination, incorporating or using such device to study antenna design and theory to radio astronomy to the studying of RF absorption properties in various materials, to ...
The RTL-SDR radio, using the larger of the two supplied antenna, was configured and tested while mounted to a USB 3.0 PCIe 1x card (see photo) that is attached to an ASUS-X99-A motherboard via a PCIe x1, 4 port bridge expander driven with a PLX controller chip, audio ported to a Sound Blaster FX, PCIe 1x audio board, using Win 7 Ult 64. This SDR device, functioning well after six months of casual use.
[update 18 Aug 2016]
For about the past three weeks, the RTL-SDR device has begun to fail intermittent, producing "Unknown USB Device" errors. The intermittent nature of the device failures having become more frequent and disrupting, eventually resulting this evening in a "blue screen" (a.k.a. BSD) crash of the computer. The rather short, 9 month life span of the product perhaps the byproduct of substandard electronic components having being selected and incorporated into the device to which a growing, serious issue with electronic products produced in China.
Minus 2.0 for short product life span.
Intel ISEF Grand Awards Judge, Physics and Astronomy
Judges Advisory Committee California State Science Fair (inactive)
Former Instructor, Basic Electricity and Electronics, University of Hawai`i Hilo