FYI: RTL-SDR Blog V4 End Of Line

That said, there are two new dongles in the works, a Blog V4L ‘lite’ and a Blog V5.

https://www.rtl-sdr.com/rtl-sdr-blog-v4-end-of-line/

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Not a bad run for something only intended as a stop-gap

I bought one the other day, but not for adsb. It’s quite good - the better filtering is useful and the built in upconverter makes HF reception far better than direct sampling on the older versions. It’s not a patch on a proper HF receiver, but it is usable.

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