Is this an acceptable 100Mhz OCXO output?
Is this an acceptable 100Mhz OCXO output?


Within the limitations of measuring it with an oscilloscope, yes, probably.

Amplitude

You want to use it as a clock for your circuit. You need therefore sufficient volts peak to peak, and fast and clean slew rate through the transition regions, which it shows. There's no real requirement to have any particular waveshape at the top and bottom, so the fact that it doesn't look precisely sine, or square, should not matter.

Frequency

Measuring a single cycle, or even a few, between cursors, any timing on an oscilloscope from 9.5nS to 10.5nS would be acceptable. It means the OCXO is not grossly wrong.

If you want to tell whether your OCXO is producing 100MHz +/- 1kHz, or +/- 10Hz, or +/- 0.1Hz, then you need different equipment.