The time acolytes have great interest in measuring jitter of the 1 pulse per second timing output available from GPS receivers. This signal is almost always synchronous to the GPS receiver clock which is asynchronous to GPS time itself producing jitter equal to the clock period. This jitter limits precision of a GPS disciplined oscillator over medium timescales unless it is corrected.
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I have done it several times. Never even thinked to use any kind if oscilloscope trigger delay for it. When I have old times done these things I have many old Tektronix 7000 series analog Rolls-Royces with couple of plug'ins including different time bases with normal simple delay up to trig after delay after delayed trig. One Tek have even real independent beams and both beams have dual timebases with delayed trigs. Of course after then there was also more low grade Tek's starting from some older and many 2000 series analog scopes. With this and that delayded time bases. Also some more or less boat anchor DSO's was under and over tables.
Dual independent timebases A and B and Trig B after delay after trig A is rare in cheap DSO's
But then...
When I come to 1pps jitter measurements it was never even in mind even one half of second that I use oscilloscope delay after trigger or trig and delayed sub trig and so on for this purpose.
Even simplest cheap DSO can do it without any kind of delays after trig or dual time base with this and that delayed things.
In any case result quality depends trigger delay time jitter + trigger itself jitter.
Result quality is depending scope itself timing quality.
But, it is many times more easy to trust some known external reference what have some known jitter (all have) or just so much better that no need think.
Here in very simple example image is 1pps (yellow) and 10MHz very good reference with quite low jitter and drift in observation time. Just do simple things using simple methods. Here I do not need think so much how is possible scope own jitter. THis result can easy trust (enough).
Of course I can use 1s delay after trig but then I need know how much jitter this 1s delay may have. With simple xtal clocked scope... this jitter is so huge that for this kind of measurements using scope delay alone is just garbage collections, waste of time and even more crap if we go to old analog sweep timing scopes (only reliable method is compare SUT and known reference signal.
What scope have reference clock quality what is needed here if use 1s delay time. If then need use external reference for accuracy it can also use with cheapest DSO. Even with scope what have external reference input I will not use it for this purpose but connect reference to other input channel and 1pps to other channel and simply compare and I feel I can trust result much better.
Why make simple things complex.
And as can see it also do not need long memory.
14 sample points memory is enough for this.
And in this case, in history buffer I can look also every single acquisition if I'm interested to look ecah one separately.
So its is how we do things. Some need complex things for simplest things and many times result may be then "reliable looks like" complex garbage.