Propagation Delay Time In Signal Measurements

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danner123

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Why is propagation delay time important when measuring the frequency of a signal? I have a 9600Hz signal feeding into a NI PXI DAQ card to measure the frequency. I want to make sure my signal can be measured by the PXI DAQ card. I am confused and need more information on what to worry about when selecting ICs for propagation delay.

Thanks so much!
 

Propagation delay is not applicable to measuring a frequency. It does not matter how long the cable is the frequency of measurement stays the same. In a pulsed system it just takes longer to get there.
Frank
 
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