Oscilation during recording

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EGC's picture
Oscilation during recording

I recently had a problem when recording spontaneous event under V-clamp. When hold cell for a while, I saw huge spikes coming in during recording,  like electric signal passing by the equipment.  The set up is stable and ground is fine. I reset clampex 9, as technique support suggested, but it didn't eliminate the spike. Does anyone see it before?  What could be the cause of this?  Thanks a lot.

fai's picture
i saw spikes during recording

i saw spikes during recording many times when any call or SMS is coming on my mobile phone. check any electrical or communicating signals around your equipment.