oscilloscope 122 16 bad mesurements ?

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oscilloscope 122 16 bad mesurements ?

Post by chrisdgy » Thu Apr 01, 2021 4:17 pm

Hello guys, well here I wanted to start to learn a little to use an oscilloscope and the red pitaya is therefore perfect for that but then I do my first attempts just to send 200mv out one or 2 of the rdp 16 and with a piece of cable I come on output 1 or 2 and I therefore expected to find around 200 mv as what the generator sends but I barely measure 40 mv on the signal from the oscilloscope rdp 16 I changed port 1 or 2 and it is always the same and I also changed the port on the generator and it is also the case in any case never of measurement close to my 200mv is this normal ?? can be a calibration to be done how can we do the calibration on the 122/16 ?? I tried several connecting cables but identical!

thank for help

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Re: oscilloscope 122 16 bad mesurements ?

Post by redpitaya » Fri Apr 16, 2021 11:35 am

What is the frequency?
Can it be because there is No DC coupling ?
Please note that the minimum RF Input frequency at -3dB: 300kHz

The 16 bit board was designed specially for HAM radio operators.

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