AnsweredAssumed Answered

33500B phase modulation bug?

Question asked by jbrodr on Jun 8, 2016

I am using pulse output at low frequency (100Hz) with phase modulation by noise.

The settings are :  Ch.1:  100Hz pulse, 1ms width.  10V pp, +5V offset, Modulation = internal, PM, Phase dev = 10 deg, Shape = noise, bandwidth = 20Hz.

Occasionally there is an extra pulse inserted in the waveform at 180 deg, in other words a frequency doubling for one cycle. I have tried this with sine modulation, with similar results. 

Is there a firmware fix available for this bug?