I thought this was pretty damn impressive <a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;electronics&#x2F;comments&#x2F;3m1bao&#x2F;13ghz_oscillator&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;electronics&#x2F;comments&#x2F;3m1bao&#x2F;13ghz_o...</a> I didn&#x27;t know you could make a fairly simple oscillator to generate ~1GHz frequency.