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Author Topic: Tektronix 2432A noisy trace  (Read 450 times)

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Offline gerdyTopic starter

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Tektronix 2432A noisy trace
« on: February 23, 2023, 07:16:29 pm »
Hi, I have a Tek 2432A scope. It works well except it has a bit of a noisy trace. Grounding the input channel(s) does not change that, still noisy.
Anyone experienced this before? Any clues where I have to look to fix this?
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Offline Ground_Loop

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Re: Tektronix 2432A noisy trace
« Reply #1 on: February 23, 2023, 11:52:41 pm »
That actually looks kinda normal.  Go down to 2mV and check it.  I have a 2430 and a 2440 and they both pretty much do the same.
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Offline David Hess

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Re: Tektronix 2432A noisy trace
« Reply #2 on: February 24, 2023, 10:54:56 pm »
Didn't we just cover this?

The Tektronix 2400 series DSOs are pretty noisy because of their CCD technology, but that looks pretty normal to me, and is actually not bad for a 300 MHz bandwidth, but check at the most sensitive vertical sensitivity to make sure.
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