Learning about WR absolute calibration at NIKHEF, Amsterdam.
Inspired by discussion on time-nuts, here's a revised noise-colour graph. There are a few updates: The PSDs (both phase and frequency) now cross at 1 Hz (with the relation between phase-PSD and frequency-PSD explicitly stated), and the ADEV/MDEV theoretical lines now include the formula for the pre-factor (the old graph only had 'proportional to' here).
It is left as an exercise to the reader to properly explain the ADEV pre-factor for flicker-phase noise :).
Might be some of the last weekends this season for biking in decent weather... Mostly easy but hilly gravel paths from Oittaa heading north to Solvalla, then back south along the main road.
A few weeks of Iltarastit on Sundays now, before the end of the season.
A bit of searching inside the control circle on 23, then from 15 about 45-degrees wrong direction towards 38. Just before 39 a turn downhill and had to circle back to the control.
A bit windy but quite warm and good temperature for running. Fairly easy course but it's always more fun in the darkness 😉
A bit of rain but not too bad, quite warm.
Most of the narrow trails on the northern/westward part of the route were too difficult for me to ride. The beginning and end were on gravel-roads so no worries there.