Monthly Archives: January 2015

Noise and distortion in signal generation

So this is interesting. Apparently, according to the fairly sparse specifications, the Velleman HPG1 signal generator uses a ten bit DAC, which suggests a fairly high noise floor. I figured I’d measure it to provide this blog with some more … Continue reading

Posted in Testing | Leave a comment

Analogue vs Digital signal generation

In 1997, just starting out on this writing stuff, I decided I needed an audio signal generator. Off-the-shelf ones, to the extent that they were available at all, were way too expensive for me. However back in those days there … Continue reading

Posted in How Things Work, Testing | Leave a comment