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U3606A emission

Question asked by dave_f on Jul 6, 2011
Latest reply on Jun 22, 2012 by thong-lin_tan
We purchased a U3606A for use in a test setup. The data taken contained spurious signals, which was tracked down to be coming from the U3606A. A cross-check confirmed that our E3646A is not emitting anything like this, and the E3620As we have are some of the quietest supplies we have.

I've included a scope trace taken at the force output on the front panel, unloaded. A lot of this is also on the measurement input. Is this normal, or is the unit defective?