Hello everyone, I want to ask experienced people for advice in solving my problem.
I have a WP950 1GHz 16Gs/s oscilloscope, the problem is that during the rise and fall of the signal, inadequate amplitude readings appear, the oscilloscope draws a straight line between them, and sharp "saws" are obtained that spoil the reading signal. That is, the oscilloscope is not showing the sample correctly.
For testing, I assembled a simple high-frequency oscillator at about ~600 MHz.
RIS helps a little, but it doesn't solve the problem, it only reduces it. It is not always possible to use RIS, more often I need a single shot signal. The "saw" is also visible in RIS.
I also want to note that the "saw" goes through if you turn on the second channel, the third, or all at once. From this I conclude that the sampling frequency is to blame. At 16Gs/s the signal is bad, and at 8Gs/s and 4Gs/s it's already more or less normal. I would like to use the full capabilities of the oscilloscope. I suggest you watch my video where I showed how it all looks. -
I also have a question about the fact that the oscilloscope sometimes thinks for a very long time. You turn it on, work, work, and sometimes it freezes, and sometimes you have to wait up to a minute. Automatic recalibration on reboot turns on by itself, although I turn it off. At the same time, the time is right. This means there are no real-time battery problems.
I'm even thinking of buying a new device, I really want a DDA-3000 or WavePro-7300A, but it's very difficult to find in Russia and neighboring countries for adequate money
Thanks for the help.
-Tim