On Tue, Sep 17, 2019 at 03:03 AM, Raymond Domp Frank wrote:
Hi Raymond,It acquires waveforms, but it's as though it's acquiring two differentThe "low frequency" that you see is actually the retrace (return of beam to
I agree with your interpretation, retrace samples appear in the acquired waveform. But I think your suggested remedy is not working. The Z-axis blanking is itself a result of internal signal. The only logical output of the Z-axis circuit is the GSF signal which inhibits digitizing/storage of extreme Y values. During retrace there must be some "inhibit" signal active which prevents digitizing/storage during retrace.
It's won't be easy I think to pinpoint the cause. I spent a few minutes reading the Theory of Operation and looking at some diagrams, but oh boy!