Products > Test Equipment
FeelTech FY3224S 24MHz 2-Channel DDS AW Function Signal Generator
nikbry:
Thanks for the suggestion. I am afraid it's too late for that, since I did the grounding mod.
Still puzzled why the 1x probe setting measures the 5Vpp up to almost 2MHz.
Aldo22:
--- Quote from: nikbry on October 16, 2024, 01:32:02 pm ---Still puzzled why the 1x probe setting measures the 5Vpp up to almost 2MHz.
--- End quote ---
Whatever that may be, it does not indicate to me that the FY3224S is responsible.
Cables, oscilloscope, settings...
nikbry:
--- Quote from: Aldo22 on October 16, 2024, 02:30:09 pm ---
--- Quote from: nikbry on October 16, 2024, 01:32:02 pm ---Still puzzled why the 1x probe setting measures the 5Vpp up to almost 2MHz.
--- End quote ---
Whatever that may be, it does not indicate to me that the FY3224S is responsible.
Cables, oscilloscope, settings...
--- End quote ---
Thanks Aldo for bearing with me.
Since I had nothing better at hand, I connected the two BNC to Crocodile cables that came with the Feeltech together, to connect the generator to the scope. With this arrangement Vpp is 5V up to 5Mhz, then it starts to rise peaking at 5.9Vpp at 15MHz to then decay to 3.7Vpp at 24MHz.
I'm not sure what to make of it all. First thought would be that all three of the probes that came with my Owon and Zotek have a similar attenuation error when used above 5kHz with the 10x setting. But at that low of a frequency this shouldn't be the case???
Anyway, interesting little problems to deal with.
Atlan:
Use bnc cable without crocodile
nikbry:
--- Quote from: Atlan on October 16, 2024, 05:05:56 pm ---Use bnc cable without crocodile
--- End quote ---
Thanks for the tip, I do not have a BNC to BNC one at hand.
I did some further testing and have come to the conclusion that the problem is not due to the signal generator. With one of my oscilloscopes (Owon VDS1022i) I did a scope and probe calibration and now the Vpp I measure stays at 5Vpp through the entire frequency range up to 21MHz. |O
So sorry everyone for my rant and confusion.
Special thanks to Aldo, and I stand corrected about my unhappiness with the Feeltech.
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