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6) Adjust oscillator cavity motor to get to 68 MHz +/- 50 Hz. Yes 50 hertz.
Roughly the cavity Measured Frequency/Counter/Vitara Repetition Rate should change at a rate of -30.8 MHz/m. So a 1 um step will change the cavity by 30 Hz, 10 um by 308 Hz and 100 um by 3080 Hz. There is pretty annoying backlash when trying to move the motor by less than 10 um, so be patient.
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