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During a break in the clouds earlier this week I managed to collect some periodic error (PE) data.
AP warrants that their 1200/1600 sized mounts will be 5 arc-seconds peak-to-peak, or less, BEFORE any correction.
1st pic. My raw data. It looks like 1.6 peak-to-peak.
2nd pic. The correction curve that AP flashed into my mount before shipping.
3rd pic. Corrected PE? TBC...
N.B. I shoot from the suburbs, over rooftops and a main road.
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