[time-nuts] Basic question regarding comparing two frequencies

Peter Vince pvince at theiet.org
Mon Jul 26 10:32:03 EDT 2010


Sorry Bert, I don't follow the last part about the 100Hz - can you
explain further please?  (and is that 100.00 or 100.01 Hz?)

     Peter


On 26 July 2010 14:27,  <EWKehren at aol.com> wrote:
> Hi,
>  ten years ago not having a super counter I copied the input circuit  of
> the Austron 2110 that using an XOR gate mixes 5 MHz with 500 Hz getting
> 5.0005 MHz. It is devided down to 1.0001 Mhz which in turn is mixed in 74 HC 74
> D F/F giving 100 Hz, that most counters are able to count at high
> resolution.  Still use it today. May be a time-nuts project.
> Bert Kehren




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