Hi tatel!
Please see this animation: https://youtu.be/cUD1gMAl6W4
Thank you! That's a great animation, but do you know this video?
If you like old American science fiction movies, then you will love the music.
And I think it's still very educational.
Regarding the other information from you, I have to admit that I cannot assess the effect of the antialiasing filter in practice.
All I can say is that I don't see anything unusual from my normal tests (besides the coax test).
For example, if I connect my small FM test transmitter to the Zeeweii, I can use it to set the transmission frequency.
If Zeeweii says that we now have 105 MHz, then the receiver/radio also has a signal at 105MHz. Why should I think this is wrong?
Of course, I will not seek details about the signal in this area.
If I hold the probes to the 16 MHz clock of the Arduino, the Zeeweii tells me that 16.0MHz is oscillating there.
Why should I assume this is wrong?
When I try to pick bad from even worse ne5532 fakes, the Zeeweii shows me the original square signal and the trapezoid-like amplified signal of the ne5532.
Why should I think that instead of a square and a trapezoid, it's actually a butterfly and a balloon? (Image attached).
If you can explain to me that it's not really a square and a trapezoid (more or less), then I'll throw the device away.
Otherwise that's enough for me and it's worth my money.
Above 5Mhz, I don't really care about how the signal looks anymore.
Perhaps what some don't understand is that I never expected more from this device.
It costs as much as a bottle of wine in a restaurant here.
Thank you!