This oscillator has an 11.6MHz crystal and is also tuned for the third overtone or harmonic of 34.8MHz. The sine wave underneath is kind of good, and there is sort of nothing in the eleven.6MHz basic during the 34MHz output while in the Fourier Screen. A frequency adjustment Digital circuit https://crystaloscillatormanufact82603.blogthisbiz.com/37210181/precision-crystal-oscillators-things-to-know-before-you-buy