I've decided to move spectrum analyzer posts onto their own page. I've been getting complaints from approx. 25% of my readership (hi, Katie) that I'm crossing the line to "too nerdy". So, I'll let you opt-in to hearing about it. The page is available here. I'll write sub-pages for each module. Unfortunately, I don't think there's a way to make an RSS feed of changes to this page, so if you're interested you'll just have to check in occasionally. I'll also post when it's all done, so there is that to look forward to.