![KA7OEI's blog: Characterizing the RTL-SDR Blog (Version 3) for HF reception using the "direct" input. KA7OEI's blog: Characterizing the RTL-SDR Blog (Version 3) for HF reception using the "direct" input.](https://1.bp.blogspot.com/-q7EZFNdgbOE/YE2e1FGW1KI/AAAAAAAAIDc/gbe_w2Kcums9N8dHYjISSuO7RG05DVP-ACLcBGAsYHQ/s1600/rtl_sdr_external.jpg)
KA7OEI's blog: Characterizing the RTL-SDR Blog (Version 3) for HF reception using the "direct" input.
![rtl-sdr.com on Twitter: "Using an RTL-SDR Blog V3 in Direct Sampling Mode to Receive HF DRM on an Android Phone https://t.co/7SXN4MN24O https://t.co/oqyfXCthud" / Twitter rtl-sdr.com on Twitter: "Using an RTL-SDR Blog V3 in Direct Sampling Mode to Receive HF DRM on an Android Phone https://t.co/7SXN4MN24O https://t.co/oqyfXCthud" / Twitter](https://pbs.twimg.com/media/EO3DbafU4AAnTOB.jpg)
rtl-sdr.com on Twitter: "Using an RTL-SDR Blog V3 in Direct Sampling Mode to Receive HF DRM on an Android Phone https://t.co/7SXN4MN24O https://t.co/oqyfXCthud" / Twitter
![u/psychopat666's photo shows possible new dongle board revision with pins 4 and 5 on the RTL chip broken out to pads for direct sampling HF! Could people look to see if they u/psychopat666's photo shows possible new dongle board revision with pins 4 and 5 on the RTL chip broken out to pads for direct sampling HF! Could people look to see if they](https://external-preview.redd.it/JvCOZDD-8ikk7LvMYM8aunA7--p86lxAQOmeQ8zzgyw.png?width=640&crop=smart&auto=webp&s=0a2f1870e8bf54ab84c61b9c96676dd42f348f30)