[time-nuts] Scopes and 1 PPS signals?
steveheidmann at yahoo.com
Tue Oct 23 18:56:01 EDT 2007
Isn't 5370 ownership a prerequisite for this group ?
Brooke Clarke <brooke at pacific.net> wrote:
While trying to figure out the O-1814 Rb source I found a 1 PPS signal that's
less than 10 us wide. But using an HP 54501A DSO it's almost impossible to
determine the period. http://www.prc68.com/I/O1814.shtml
If the display is 1,000 dots wide:
at 2 us/sq the trace takes up about 4.5 squares or 450 dots,
at 200 us/sq the trace takes up about 0.045 squares or 4 dots but the second
pulse is way off screen. At slower sweep speeds you can't see the pulse.
Are there scopes that allow the period of a narrow pulse to be measured that
don't cost an arm and leg?
http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Cam
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