Which of the following factors most affects the accuracy of a frequency counter?
Input attenuator accuracy
Time base accuracy✓پاسخ درست
Decade divider accuracy
Temperature coefficient of the logic
توضیح
The counter counts input cycles during a gate interval set by its internal time base, so a fractional error in the time base becomes exactly the same fractional error in the displayed frequency. Attenuators and dividers do not alter the count-to-time relationship, which is why counters are specified by time base stability.