[time-nuts] another Ebay mixup, 5370

Tom Van Baak tvb at LeapSecond.com
Sun Jun 10 04:19:32 EDT 2007

> Measurements taken from 3325B at 1 MHz:
> 5370B reference:       INT          EXT (same 5087A as 3325B uses)
> Square wave, 2v pk:    15-20 ps     11-12 ps
> Sine wave, 2v pk:      50-70 ps     30-35 ps
> Square wave, 1v pk:    20-25 ps     12-13 ps
> Sine wave, 1v pk:      60-80 ps     40-45 ps
> Square wave, .1v pk:   40-60 ps     40-45 ps
> Sine wave, .1v pk:     600-900 ps   500-600 ps
> -- john, KE5FX

Very nice data. Thanks for staying up late to make the measurements.
What trigger levels and input configuration did you use for this?

Based on these results can someone calculate how much jitter is
due to the 5370B input circuits alone and how much is due to the
rest of the circuitry of the unit?


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