HUH?
10 ppm @ 10MHz = 100 Hz.
+/- 10 ppm @ 10MHz = 200 Hz.
35.3 Hz < 200 Hz.
???????????????????????????????????????
It looks like your Orion may be out of spec. TT published specs on Orion's
temperature stability is +/- 10 ppm, At 10 MHz, that is 30 Hz. Your Orion
had an excursion of 989.0 - 953.7 or 35.3 Hz. One would hope that the +/- 10
ppm is 'worst case' but your measurements are even worse.
73,
Mark
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