Manuel Compares the RTL-SDR Blog V3 vs RTL-SDR Blog V4

Not too long ago we released our first batch of RTL-SDR Blog V4 dongles, and most have been received by customers now. The next batch is coming soon, and we should be able to start sales again within the next 1-2 weeks from this post. It is incorrect rumors that they are totally sold out forever already. There should be sufficient stock for at least a year, so everyone who wants one will can get one.

In his latest YouTube video Manuel Lausmann compares the performance of the RTL-SDR Blog V3 and the RTL-SDR Blog V4. The video is narrated in German, however YouTube's autotranslate + captions feature works well.

In the video he first compares the performance on HF, noting that there are significantly less interference signals in the HF spectrum due to the lack of Nyquist folding around 14.4 MHz, which is a known problem with the direct sampling mode. He later also compares performance in the VHF and UHF bands, notably finding an improvement in the 145 MHz region where the V3 has a pumping noise floor from out of band interference, whereas the V4 does not thanks to it's additional filtering.

Der neue RTL SDR V4 VS RTL SDR V3

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Bruce Ferrell

It’d be nice if his video had english translations

Robert

The V4 dongle is a definite step up from the V3 dongle , I do wonder what the next big thing they have in the works is .

Leftovertech

Next week, they will be releasing the v666.
This new model can tune from the depths of hell at 666 Hz to well beyond ultraviolet.
Incidentally, it only supports 1000 GHz of instantaneous bandwidth, but v666.1 is on the drawing board!

Chris

Looking forward to trying out the V4. I’ve been checking every day for news on when it’ll be available to purchase again.