On Sat, Dec 11, 2021 at 08:00 PM, n4buq wrote:
In AUTO mode, the time-base is in a "free-run" mode which generates a ramp at
the selected sweep rate and, at the end of the ramp, generates another ramp.
This continues whether a trigger is present or not.
In AUTO mode, any sweep ramp is followed by some HOLDOFF time, during which the sweep circuit watches to see if it gets a triggerable signal from the input. If a triggerable signal arrives during the HOLDOFF time, a new ramp is generated. If no triggerable signal arrives during the HOLDOFF time, an auto-generated ramp is started.
I'm not familiar with this plugin, but, in general, the HOLDOFF time is adjustable. If I'm reading the manual for this plugin correctly, the center knob of the sweep rate assembly can be set to control the HOLDOFF time if some internal jumper is set.
In NORM, the time-base waits for a triggering signal before executing a sweep
and, at the end of the sweep, waits for another trigger signal before
generating another ramp.
In general use, the difference between AUTO and NORM is that, with no input signal, AUTO gives you a flat line, while NORM gives you a blank screen.
