For the frequency ranges in which they overlap the rtlsdr dongles out perform the HackRF. I bought my first rtlsdr in early 2013 and am a HackRF kickstarter bac

For the frequency ranges in which they overlap the rtlsdr dongles out perform the HackRF. I bought my first rtlsdr in early 2013 and am a HackRF kickstarter backer. The BladeRFs are great if you want to do serious work like running cell basestations. That extra price you pay is worth it in that regard.