There was some talk here a while back about the Si5351, an equivalent to the Si570 that has 3 programmable oscillators and only costs a couple dollars. I just got an application board from AdaFruit and fired it up to see how it performs. I have some questions about spurious outputs that I'd like to discuss with anyone who's using this part. If you have any experience with it, please contact me directly(joeatroccisdotcom) Joe W3JDR