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Author Topic: HP 54601A Noisy?  (Read 608 times)

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Offline mike4t5Topic starter

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HP 54601A Noisy?
« on: March 12, 2022, 06:17:42 pm »
Hi there all,
I'm new to this forum and electronics in general. I recently got a HP 54601A as my first scope for a decent price on ebay. First of all love the CRT on it, makes me want more CRT stuff now! I have been messing about with it and found the it seems really noisy. i don't know if its meant to be like this or if there's something wrong with it? I believe that there's an issue with it. i have an image of what i'm seeing. i don't really know where to start. hope someone can help me out please.


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Offline Vovk_Z

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Re: HP 54601A Noisy?
« Reply #1 on: March 13, 2022, 07:15:15 am »
I don't see if "20 MHz" mode is turned on. Without it - it can be noisy.
« Last Edit: March 13, 2022, 07:19:02 am by Vovk_Z »
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Offline mike4t5Topic starter

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Re: HP 54601A Noisy?
« Reply #2 on: March 13, 2022, 09:25:53 am »
Ah okay, I honestly have no idea if its on. Do you know how to see if its on? I don't see that as an option.
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Online oPossum

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Re: HP 54601A Noisy?
« Reply #3 on: March 13, 2022, 12:19:22 pm »
What does the cal output look like? Noise should be about +/- 1 LSB.

Bandwidth limit (20 MHz) in in the channel menu.
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