[sdiy] Re: S[DIY} frequency counter

[Dave Manley]

David G. Dixon wrote:

> 
> More importantly, it depends on what you actually want to achieve with the
> device.  I would like to be able to measure fractions of Hz at the low end
> of the audio spectrum or even below.  Hence, I will probably end up adding a
> PLL to multiply the signal...  The Art of Electronics has a very nice
> subchapter on frequency counting and period measurement, by the way.

Are you putting the counter in a module?  If so bring the pll and 
multiplied outputs to the panel and you can use it in a patch. 
Depending on the loop filter you can get interesting results when the 
PLL tries track the input.

-Dave