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Oscilloscope calculations

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Ok just to make sure i am doing this right on my Instek GOS-620 scope.

Volts= No divisions × volts/div x probe setting

My case v= 2.0 x 0.1 x 10 so v=2. Now freq is #of div/cycle × time/div i have t=6.6 x 50us=330us n freq=1/t or 1/330= 3.03 kHz buuuut the signal is the scopes 1kHz, 2Vp-p signal and my multifunction counter says1.04 kHz, so what am i doing wrong?  I know having the counter i don't have to know how to calculate it but nice to know how. Thanks







Edited by jknightandkarr
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