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RTL-SDR.com V4 TCXO USB key + SMA + Bias-T + R828D tuner View larger

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RTL-SDR.com V4 TCXO USB key + SMA + Bias-T + R828D tuner 500kHz - 1766MHz

rating Read the 9 reviews
Average rating: 5/5 Number of reviews: 9

The RTL-SDR.com V4 USB SDR key incorporates the R828D tuner (instead of the R860 in V3) for reception from 500kHz to 1766 MHz.

  • TCXO at 1 PPM
  • Female SMA antenna connector
  • Realtek RTL2832U chipset + R828D tuner
  • Bias-T 4.5V power supply via SMA, for powering an LNA or active antenna via coaxial cable
  • Aluminium case with passive cooling
  • HF reception from 500 kHz
  • Notch filters

Antenna kit (optional): 1 dipole antenna support with 60cm of cable, 2 telescopic antennas (23 cm to 1m), 2 telescopic antennas (5 to 13 cm), 3-metre RG174 extension lead, flexible tripod and suction cup.

Supplied with : 1 RTL-SDR V4 key (without antenna or CD), with optional antenna kit.

Add all HF bands with the Ham It Up SDR converter to listen to everything from 0.5 to 50Mhz

Version V3: RTL SDR V3

More details

32,38 € tax excl.

34,08 €

In stock

   More than 10 Items

  • With antenna
  • Without antenna

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Data sheet

New features and improvements in V4

Improved RF reception: Now uses an integrated up-converter instead of a direct sampling circuit. This provides improved sensitivity and adjustable RF gain.

The reception range is identical to V3, from 24 to 1766MHz, with the possibility of using directly HF from 500 kHz to 24 MHz.

HF VHF UHF triplexing: The V4 uses the R828D tuner, which has three inputs. The SMA input is triplexed into three bands, HF, VHF and UHF. This provides a degree of isolation between the three bands and reduces interference or causes out-of-band desensitisation from powerful broadcast stations.

Enhanced filtering: In addition to triplexing, the V4 uses the R828D's open drain function to add simple notch filters for common interference bands such as AM, FM and DAB. These filters only attenuate by a few dB, but they can be useful.

Improved phase noise on strong signals: Thanks to an improved power supply design, phase noise due to power supply noise has been significantly reduced.

Less heat: The V4 uses slightly less current and generates slightly less heat than the V3.

Lower price: The price of the R860 chip used in the V3 and most other SDR key models rose significantly in early 2023, which partly explains why the price of SDR dongles has risen recently.

For V4, we are using an existing stock of R828D chips which are now cheaper than new production R860s.

Other minor changes include a new LED for the BIAS-T and a small cut-out in the case to see if the bias tee is on.

The same innovations from the V3 are still present in the V4, such as the conductive black metal case that functions as an RF shield and heat sink, a thermal pad to remove heat from the PCB, a 1PPM TCXO, an SMA connector, USB noise reduction and improved ESD protection.

However, the V4 does have a few drawbacks compared to the V3 that are worth noting:

Due to increased filtering, there may be an average 2-3dB decrease in sensitivity on some bands.

V4 requires the use of RTL-SDR.com drivers.

Installation instructions are available in the quick start guide. Please note that the V4 will not work with the default Osmocom drivers.

Drivers for MacOS and Android are not yet available.

The V4 is a limited edition: The R828D tuner chip is no longer being produced at all and the availability of the V4 with R828D is estimated to be September 2024.

Because of these compromises, we will continue to sell the V3 at the same time as the V4.

RTL-SDR V4 drivers and guide

The RTL-SDR V4 USB key is installed differently from the V3 and other RTL2832 SDR USB stick. You can download the installation guide below.

The drivers for V4 are specific and can be downloaded from github.

SDR software compatible with v4

Almost all software (confirmed on SatDump, SDR#, SDR-Console V3, SDR++, Welle.io, RTL1090v2).

Under Windows, updating the driver involves replacing a .dll file with the file from RTL-SDR and available from GitHub.

Most programs use the rtlsdr.dll file in the x64 folder, but some x86 programs such as SDR#, welle.io and RTL1090 require the dll file in the x86 folder.

Should I upgrade to V4 if I already have a V3?

If you're already happy with the performance of the RTL-SDR V3, there's no need to upgrade to V4 as you'll get broadly similar performance.

However, if you are getting an SDR key for the first time, it may be wise to consider the V4 model.

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Reviews

Click here to leave a review

rating 5
Rtl sdr v4
Service impeccable, merci de proposer des produit comme celui qui donne accès à moindre coût à l\'écoute radio.
Pour info les driver de la V4 sont disponible et fonctionnent sans souci sur Android et Windows pour ma part. La qualité de l\'écoute est certainement perfectible en Hf mais elle est possible même avec l\'antenne fourni dans le kit. Belle porte d\'entrée vers la passion radio.
rating 4
Très bien, antennes livrés pas folles...
Très satisfait de la clé, de grande qualité. Par contre il faut prévoir d\'acheter de meilleures qualités, car les antennes livrés sont de basses qualités, bug et énormément d\'interférence donc son pas ouf... Mais pour la clé seulement rien à dire ! ;)
rating 5
RTL sdr v4
Je débute dans l’écoute et franchement je suis content de cette clé elle marche super bien à recommander
rating 5
rtl sdr V4
Tres content du produit ! livraison nickel en parfait etat rien a dire ! merci passion radio !
rating 5
Super produit !
Merci passion-radio, tout est arrivé à l’heure. Je découvre le monde du SDR avec cet appareil et la seule chose que je peux dire c’est : Ouah quelle claque ! Je l’utilise avec SDR# et l’antenne de base fournit avec et il y a vraiment de quoi passer des heures à écouter les différents signaux. C’est que du plaisir !
rating 5
produit conforme
test en cour, et pour l\'instant concluant à mes attentes
merci
rating 4
Évaluation du produit
Si je met 5, cela voudrai dire qu\'il serait aussi bon qu\'un SDRPLAY. Il est à la hauteur de son prix pour de l\'entrée de gamme. Petit truc en plus: Il est moins cher que certains gros sites internet. ;)
rating 5
cles RTL-SDR v4
2023 11 16 : fonctionne parfaitement sous windows7 et le logiciel AirSpy-SDR# 1.0.0.1919. l'alim biasTee se pilote très bien soit en On/Off, soit en setup permanent sur eeprom. Branchement sur ampli nooelec et antenne moonraker skyscan à disconne. il faut passer du temps à lire et à comprendre les docs relatives aux versions v3&4 sur rtl-sdr.com. Après c'est que du bonheur de 'redécouvrir l'écoute à la radio.
rating 5
cles RTL-SDR v4
2023 11 16 : fonctionne parfaitement sous windows7 et le logiciel AirSpy-SDR# 1.0.0.1919. l'alim biasTee se pilote très bien soit en On/Off, soit en setup permanent sur eeprom. Branchement sur ampli nooelec et antenne moonraker skyscan à disconne. il faut passer du temps à lire et à comprendre les docs relatives aux versions v3&4 sur rtl-sdr.com. Après c'est que du bonheur de 'redécouvrir l'écoute à la radio.

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