Done my first grade of db programs, was a mix of low and high freqs, I noticed that when going from high to a low freq, there is no ramp at all and get quite a jolt. why isn't ramp working?

When dong a biofeedback scan of any type, a ramp should not be used. Typically you are spending under 5 seconds on each frequency, and if you specify a ramp to take over 5 seconds, which starts at 0 volts, no voltage would ever get applied -- the voltage resetting to 0 every time the frequency changed. This also is an issue with any type of sweep.

It is possible John has coded the scans to ignore the ramp setting. I do not recall.

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