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Temperature compensation check

After participating in Pete's quiz on cal course temperature compensation, I wondered how well it works in practical application.

So this morning I went out in the cold on my street to measure a 100m section of my calibration course. I have measured this 100m section many times, a couple of them when the temperature was close to 68 degrees, so I know it is pretty accurate.

It was about 39 degrees when I did the taping, one length of my 100m tape. There was bright sunshine, but it was low in the sky and the course is partly shaded, so I think that had little effect.

My measurement was 100.025m. Applying the temperature compensation gives 100.006m.

I plan to repeat this measurement later this year when it is 80-90 degrees.
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