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I'm trying to use a function generator HP 8116A and an oscilloscope Tektronix TDS210. When i connect the probe to trigger output of function generator, i can observe the square wave correctly.

However, if i use normal output of the function generator and send a signal of 5V and 10kHz (sinusoidal, square..) i observe this bad signal on oscilloscope display which i showed below. If you share your idea about this problem, i will be very happy.

Trigger Output (No Problem):

enter image description here

Sinusoidal Signal (With Problem):

enter image description here

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2 Answers 2

Reset to default
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I realized that the "DISABLE" mode is open on function generator. When i closed it, the signal became correct. You can see "DISABLE" button on the right side of function generator in photo. The problem was solved.

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Not a 100% sure but it looks like your having aliasing issues. Try increasing the o-scopes sampling rate

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