I’ve just received a Hantek DSO8060 digital oscilloscope. This is a dual channel 60MHz scope with a 320×240 display. Samples are 8bit. There are various mathematical functions that can be applied to the signal, notably an FFT. It is also a digital multimeter that measures A,V,R, Diodes and Capacitors. It also has a built in 25MHz arbitrary function generator. There is a USB port for attaching a storage device or connecting to a PC. It comes with a bag, two 10/1x probes, software for Windows, multimeter leads, a coax cable and a good instruction booklet. Here is the scope:
The screen can be saved to a .bmp file. Here is an example: this is measuring the output of a 416Hz triangle wave signal from a Droid X running my “AudioTool” application:
This also shows the FFT (in blue). There are cursors which can be used to measure features of the channel signals or the mathematical functions, manually or automatically.
Overall, I am extremely impressed so far. The operation is very straightforward and intuitive. i shall be comparing it to my benchtop Tektronix 7844 in the next few days.
A couple of things I haven’t been able to work out: can the FFT data be averaged (the time domain signal certainly can), and how to change the vertical (dB) scale for the FFT.