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Our Review:This will be a work in progress as we have only just begun to examine the unit. Firstly, the reception sensitivity is impressive on the HF spectrum. We tested shortwave radio reception on a small magnetic loop and compared to a number of consumer shortwave radios. What was most unexpected was our ability to filter out QRM / interference. There is a lot or radio noise in an urban setting and in many modern homes. We actually had more difficulty with interference on the dedicated consumer shortwave radios than we did on the HFDY Malahit SDR. The little whip antenna that is shipped with the unit is pretty useless. For better VHF reception there are a number of antennas available in the ham radio HT category with sma connection as well as some good quality telescoping antennas. Another option is a quality scanner antenna, although they typically have a BNC connector thus the requirement of an adapter. We replaced the whip with a basic and lightweight telescoping antenna of reasonable length with very positive results. The larger the antenna the better (more metal, more signal) however keep in mind that you do not want to put a great deal of stress on the sma connector of the unit. Perhaps an "active antenna" with sma cable connection as a separate stand alone unit is a good idea. For 2-meter amateur radio reception we had best results connecting to an outdoor antenna such as a J-pole.The sound quality of the HFDY Malahit SDR was also surprising, it actually sounds pretty good. On reception of FM broadcast on WFM stereo the sound quality of the tiny internal speaker was more than antiquate. Next we will connect the line-out to a hifi amplifier to satisfy our curiosity. AM broadcast reception and audio quality is also impressive.