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  • Black RTL-SDR Blog V4 USB receiver standing diagonally on a white background - the housing bears the texts RTL-SDR.COM, RTL SDR BLOG, MODEL: V4 and ticked boxes RTL2832U, R828D, TCXO, BIAS-T, HF plus QUICKSTART: RTL-SDR.COM/QSG, a gold SMA antenna connector and a USB-A plug
Discontinued

RTL-SDR V4 R828D RTL2832U - New version

5.0 25 reviews
This product won't be restocked. See available alternatives below.
$70.00
DiscontinuedShips from our warehouse in Poland

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  • Free shippingOrders over $200 · United States: FedEx 1-2 weeksOutside the EU, customs duties and import taxes are paid by the buyer · Shipping policy
  • Invoice with every order
  • 14 days to returnReturn policy
  • Technical help after purchase

    Description

    ⚠️ This model is no longer in production. The version currently in production is RTL-SDR V3 (R820T2) - a proven version fully supported by popular SDR software. If you are buying today, choose the version that is in production → RTL-SDR V3.

    Discover the new version of the popular RTL-SDR V4 device that will take your radio reception experience to a whole new level. Buy the RTL-SDR V4 version today at a very affordable price from Sapsan . This advanced receiver is designed for radio enthusiasts, shortwave operators and professionals looking for precise tools for monitoring radio frequencies. Remember to carefully check your software compatibility and system requirements before purchasing.

    RTL-SDR V4 – check out what the new version can do

    The RTL-SDR V4 features several improvements over the original versions, including the use of the R828D tuner, a triple input filter, a notch filter, improved components, a 1 PPM temperature compensated oscillator (TCXO), an SMA F connector, an aluminum case with passive cooling, a bias circuit, an improved power supply and a built-in HF converter.

    Important information:
    RTL-SDR V4 is a newer design and requires an update to the latest drivers to operate. Before purchasing, make sure you understand that not all applications work with V4 yet ! This product is compatible with most programs on systems Windows, Linux and Android, but in macOS still catching up. For more information, please see the V4 User Guide [eng]

      RTL-SDR V4 – Here is our concise installation guide

      1. Download SDRSharp
      2. Download the latest ddl (Release.zip) https://github.com/rtlsdrblog/rtl-sdr-blog/releases
      3. Unpacking sdrsharp somewhere on your PC, then copying to the sdrsharp dll folder: rtlsdr.dll, msvcr100.dll, pthreadVC2.dll.
      4. Running the install-rtlsdr.bat script
      5. Connecting RTL-SDR V4 to a computer
      6. Enabling zadig.exe
      7. Installing WinUSB drivers using Zadig for "Bulk-In, Interface (Interface 0)"
      8. Enabling SDRSharp, in the "Source" settings select RTL-SDR USB"
      9. Adjust RF gain because default is very low.


      Original RTL-SDR product, from the official RTL-SDR distribution in Poland. Also check out the RTL-SDR V3 model , which collects great user reviews .

      What is included in the kit?

      The set includes the RTL-SDR V4 receiver (1 piece). We recommend purchasing dedicated antennas for the set. If you have any questions, let us know - we will be happy to suggest the best solutions tailored to your current goals and needs. RTL-SDR V4 is a reliable and versatile radio receiver that will meet the expectations of both beginners and more advanced users.


      Frequently asked questions

      Didn't find your answer? Write to us - we also help after your purchase.

      What's the difference between RTL-SDR V4 and V3?

      V4 has a newer R828D tuner (instead of R820T2), triple input filter, TCXO 1 PPM oscillator, built-in HF converter (reception below 24 MHz without an upconverter), improved power supply and bias tee circuit. Aluminum case with passive cooling. A significant quality leap.

      Does RTL-SDR V4 support HF without an upconverter?

      Yes — V4 has a built-in HF converter that enables reception of frequencies below 24 MHz (shortwave band) directly, without additional hardware. This is one of V4's biggest advantages over previous versions.

      What is the frequency range of RTL-SDR V4?

      Range from 500 kHz to 1.74 GHz (and below 500 kHz with the built-in HF converter). Covers HF, VHF, and UHF bands — aviation (ADS-B), emergency services, FM radio, NOAA weather stations, AIS ship tracking, and much more.

      Do I need special drivers?

      Yes — RTL-SDR V4 requires updated drivers. Not all older SDR applications are compatible with V4 yet. Before purchasing, make sure your software supports V4. Popular programs like SDR#, GQRX, and SDR++ already support V4.

      What antenna should I buy for RTL-SDR V4?

      For starters we recommend the RTL-SDR dipole antenna kit with telescopic arms — covers a wide band and is universal. For ADS-B (aircraft tracking) a dedicated 1090 MHz antenna is better. For HF — a longwire or loop antenna. Antenna kits available at SAPSAN Store.

      Is RTL-SDR V4 suitable for ADS-B?

      Yes — RTL-SDR V4 is excellent for aircraft tracking (ADS-B at 1090 MHz). TCXO ensures frequency stability, and bias tee can power an active antenna or LNA filter directly from USB. With a dedicated 1090 MHz antenna and dump1090 software you see aircraft in real time.

      Customer reviews

      5.0/ 5
      25 reviews