![]() If you want to check out the flowgraph or edit it for even more RTL-SDRs, feel free to download it here:Ĥ. ![]() To put it in more simple terms I think the SDRPlay performs well as my base station setup while my HackRF One performs well in mobile situations. I find this configuration to be extremely portable, depending on antenna choice. Notice, that this isn’t any useful to decode or demodulate any signals, because of phase and clock misalignment, but it can be very handy, if you want to view a larger spectrum than 2.4 MHz and don’t want to spend money in a more expensive SDR, that can be used at higher sampling rates. On one hand, the HackRF One supports the Portapack H1 add-on, which now can be loaded with the Mayhem firmware. I bought a HackRF One because I wanted to try other things, but it was an. The HackRF One is a test equipment for RF related experiments which covers a frequency range from 10 to 6000 MHz. bandwidth of 2.4 MHz, resampled the signals to 4.8 MHz, then shifted the first signal down by 1MHz, the other one 1 MHz up, added them together, divided the combined signal by 2 to lower the noise floor again and finally feed it into a FFT plot.Īt first, I tried shifting the signals by 1.2 MHz to get full 4.8 MHz, but I realized, that I had a notch in the center, so I reduced the frequency shift until I had no notch anymore.Ĭompared to the HackRF One at 4.8 MHz sampling rate: The HackRF One is capable of receiving and transmitting on a frequency range of 1MHz to 6GHz with output power of 30 mW to 1 mW depending on the band. I simply took two RTL-SDR dongles at their max. So, now that I knew a thing or two about gnuradio, I opened an empty flowgraph and this is the final outcome with 4.4 MHz of bandwidth: You can find the lessons by Michael Ossmann here: ![]() ![]() But thanks to my purchase of a HackRF One, I was forced to use GRC and found some very useful tutorials about SDR in general, with special attention to the HackRF One. Since I had no idea of gnuradio-companion then, I didn’t know how to do this. Combining the bandwidth of 2 RTL-SDR dongles in GRCĪ while ago, I had the plan of taking 2++ RTL2832U SDR dongles to get a wider spectrum in a FFT-plot. ![]()
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