M E A S U R I N G Frequencies - Kenwood CS-4125 Instruciton Manual

M e a s u r i n g F r e q u e n c i e s
Since the frequency i s found as a reciprocal of a period, measure time (period) of
one cycle and calculate its reciprocal v a l v e .
1. Measure the time of one cycle
2. Calculate the reciprocal value of the period found.
Frequency =
E X A M P L E :
I n the case of F i g u r e 14, the period found comes to 40 a s. T h i s frequency i s
calculated as follows:
Frequency = i n x in-6 = 25 X 10
26
1 Cycle = 40as (5 us/div x 8 div)
F i g u r e 14. M e a s u r i n g Frequency
Time between
points on the same
horizontal graduation
line equals the period.
3 = 25kHz
two