Thanks for clarifying that 'point' Bill, it's what i was after, as i wasn't sure if it was standard behaviour or not for the FB3. I'm still curious 'why' the metered average signal was 0.17vdc/0.34vac on a single point in a frame, but as you've said you're not revealing more, i'll not press you! (not that it would do any good anyway!)Also, putting "just a point" into the drawing window will NOT give you a constant, unchanging 5V signal -- well, not from our software anyway... Our software does certain things "behind your back", and you will just have to trust that we know what we are doing, and the things that we do are for your own good
Could this effect be anything to do with why both my lasers appear to be the same brightness? Would 3 1.5v AA batteries (4.5v) be ok to test the modulation line?
Could low average voltage on some frames/patterns upset TTL lasers, if they happen to fall on or around the switching point? Would there be any practical use for having a software feature that provided a binary type (TTL) output over the analogue output? Again, i don't even pretend to know about these things but i'm trying to apply the logic that i do know, so any clarification is useful.Color signals are pulsed waveforms, and a meter will, at best, give you the average voltage. You need a scope to measure the voltages coming out of color lines, not a meter.