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Category: GPS

Allan Deviation — the Time-Nuts’ Statistic

February 4, 2022 n8ur Leave a comment

The essence of time-nuttery is measuring the stability of clocks and oscillators.  Allan Deviation (“ADEV”) is the statistic most commonly…

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Posted in: GPS, Test and Lab Equipment, Time and Frequency Filed under: ADEV, Frequency, PTTI, Time, time-nuts

GPS Survey — First Results

September 16, 2019 n8ur Leave a comment

Now that I have my GPS antennas permanently mounted on my tower, I’ve done a first set of measurements to…

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Posted in: GPS Filed under: GPS, NRCan, Opus, Survey

GPS Frequency Stability

April 8, 2019 n8ur Leave a comment

I couldn’t find a nice graph showing the timing performance of a single-frequency, sawtooth-corrected, pulse-per-second output from a GPS. So…

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Posted in: GPS, Test and Lab Equipment, Time and Frequency

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