Electronics > Beginners
doubt square wave
Adrian_Arg.:
The problem I see is that if I use the BNC-BNC the single block looks good, if I use the rigol probe x1, they look good, worry if I use them x10, the peaks appear, they only disappear if the amplitude is 6 volt or higher, can someone tell me what can it be?
Rigol ds1054z and FY6900 20Mhz
- the first image, with BNC-BNC cable (provided by feeltech), without attenuation of 20Mhz
- the second image, with BNC-BNC cable (provided by feeltech), with 20Mhz attenuation
- the third image, with probe of the rigol ds1054z, without attenuation attenuation of 20Mhz.
- the fourth image, with probe of rigol ds1054z, with attenuation attenuation of 20Mhz.
-the fifth image, with probe of the rigol ds1054z, without attenuation attenuation of 20Mhz. but the selected amplitude is 6V. The peaks are not exaggerated.
1- Subido en subir imagenes
2- Subido en subir imagenes
3- Subido en subir imagenes
4- Subido en subir imagenes.
5 - Subido en subir imagenes
0culus:
Are you attaching the ground lead on the 10x probe to ground? That third image looks like it's just not grounded.
Adrian_Arg.:
--- Quote from: 0culus on November 06, 2019, 03:11:55 am ---Are you attaching the ground lead on the 10x probe to ground? That third image looks like it's just not grounded.
--- End quote ---
In the third image, the only thing that changes is the deactivation of the 20 MHz attenuator of the oscilloscope. I think for the precise square wave 50 Ohms terminations
w2aew:
I agree that it looks like you haven't connected the ground lead on the 10x probe, or you're using a very long ground lead. This video might help:
Adrian_Arg.:
Thank you, I was watching the video, the oscilloscope brings some small additives to use with the probes in order to reduce the distance between + and ground, but the FY6900 of 60 Mhz, produced the same effect, otherwise it works correctly to be a generator of 69 dollars the FY6900 20Mhz, I do not have to forget that it is for hooby use :popcorn:, I can measure inductors correctly.
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