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MSO5000 Bode Plot Capability: Is it Good Enough? [Many tips about a 1st scope]

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Fungus:

--- Quote from: 2N3055 on October 04, 2022, 02:04:41 pm ---
--- Quote from: balnazzar on October 04, 2022, 10:58:45 am ---So, if I stimulate the circuit with an external WG, the AD2 will bodeplot its response? Thanks.

--- End quote ---
No, Bode plot and impedance analysis works by controlling generator and scope in synchronization.  AD2 has internal AWG and uses that one...No support for external AWG.

--- End quote ---

Weird. My copy of the manual says the generator can be external. You might know that if you owned an AD2...



PS: Can your oscilloscope do this?

egonotto:
Hello,

now the Bode plot with the LC oscillating circuit with lower C.

The Network Analyser of AD2 goes with the new Waveforms till 25 MHz

Best regard
egonotto

JeremyC:

--- Quote from: Fungus on October 04, 2022, 01:52:40 pm ---FWIW: Here's a screenshot taken with my AD2 with nothing connected to the input. 5 or 10 mV is about as low as it usefully goes without 50 Ohm terminated stuff (yes, it has a real 50 Ohm termination).

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Fungus, the "Discovery BNC" board doesn't have 50 Ohm input termination. The JP4 and JP5 jumpers are for AWG output.

balnazzar:

--- Quote from: Fungus on October 04, 2022, 12:43:35 pm ---
--- Quote from: balnazzar on October 04, 2022, 10:21:30 am ---Also, can you confirm that the software is complete, functional, and overall better than the sw that comes generally with bench scopes?

--- End quote ---

As I said earlier, you can download and try the software for free.

--- End quote ---

The problem is interfacing the soundcard with the probes (I'm trying to understand how to). I installed the software, but I should do something real with it.

balnazzar:

--- Quote from: egonotto on October 04, 2022, 01:35:56 pm ---Hello,

I tried a Bode plot with an LC oscillating circuit. The signal is severely disturbed, but it still worked to some extent. Enclosed the circuit (drawn with the mouse) and the Bode plot, the signals measured with the AD2 and a signal measured with the RTA4000.

Waveforms can now run the function generator with 25 MHz, but there is a warning. This means that the network analyzer now goes up to 25 MHz.

Best regards
egonotto

--- End quote ---

Thanks! This was very useful information.

Why is the signal from the LC oscillator so disturbed? I mean, it seems to be so even with the other instrument (presumably a more expensive dedicated NA, as far as I understand).

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