This oscillator has an 11.6MHz crystal and it is tuned to the third overtone or harmonic of 34.8MHz. The sine wave down below is fairly excellent, and there is almost nothing at all of your 11.6MHz fundamental in the 34MHz output during the Fourier Screen. Euroquartz is Qualified to AS9100 https://waylonrgujw.estate-blog.com/30255395/considerations-to-know-about-crystal-oscillator-exporter