RTL-SDR.com V3 Direct Sampling with HPF Demonstration скачать в хорошем качестве

RTL-SDR.com V3 Direct Sampling with HPF Demonstration

Showing reception on the RTL-SDR.com V3 in direct sampling mode for HF reception. Note that our 2.6 MHz High Pass Filter was required to filter out ultra strong broadcast AM. First we compare reception against an upconverter (the Spyverter). It's worth nothing that the upconverter can receive signals well even without the filter in place. Using the filter does still help the upconverter receive a little bit better but the effect is not shown in the video. Imaging mirrored around the 14.4 MHz Nyquist limit can be seen in the direct sampling mode. Then we simply scroll through the spectrum and listen to a few signals. Using a Wellbrook Loop as the antenna.