Excellent antennas! Definitely superior to the NOOELEC kit included in the NESDR Smart kit, but still far superior to the kit included in the competitor kit. First, this magnetic mount is much heavier and includes an M5 bolt (the M3 bolt is included in the SMART kit) and a telescoping antenna and two tuned whip antennas. The frequency ranges of both "plugs" are clearly documented by NOOOELEC, but I found the one with the blue O-rings worked very well at UHF frequencies as well. This is still the best value for money. Haven't tried the magnetic mounts on a moving vehicle but they are AWESOME on a hotel fridge!
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