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Reviews (9)
Apr 23, 2021
Good product!
1 of 1 found this helpful Small, but very versatile spectrum analyzer. All self-tests completed OK. An included signal generator is a great bonus. The inputs are very sensitive for damage due to static electricity and too high input power. A great solution to this is to always use an external attenuator (e.g. 10dB) connected to the inputs. It will remove any static electricity, an protect against input power up to 10x the maximal rating. Every ham should have one of these, as well as other people into RF.
Feb 20, 2019
High quality for it's price.
Solid aluminium chassis, internal electronics well designed. I've still not measured the output power, but since it's built on a TPA3116 Class-D amplifier IC there is no mystery as the datasheet gives this information. Good lowpass filter at the outputs. Very low noise (if none), and performs well as a large screen TV-amplifier with 24V power supply and 2 x 10" PA-speakers. One of the best eBay products I've seen so far.
Dec 30, 2017
Great D/A converter
This optical input to analog stereo out converter, was tested with sample rates from 32kHz to 96kHz, and with bit-resolution from 16 to 24. It works with all combinations, Also it supress noise when not in sync with the digital stream. With 5V (USB) as power, of course the analog dynamic range is not like a professional preamplifier. But it works, and for it's price this is a give-away.