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ZJchao 1hz-500khz DDS Function Signal Generator Module Sine+ Triangle+ Square Wave

The build quality is very good. I appreciate the digital display, which gives a precise indication of the frequency being generated. My oscilloscope sees exactly the same signal that ZJchao says it is sending. You have to provide your own USB 5V power supply, but that"s not a problem (I have half a dozen of them laying around the house). Also, you have to provide your own cable with BNC connector to carry the output signal, so be sure to purchase that at same time. ZJchao has been criticized for not including these items, but I think they are just trying to keep the price point as low as possible.

by: Bill F.
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