For any of the K3 users out there, KE7X sells a K3 guide that complements the K3 manual. It is a 269 page book that can be downloaded as a PDF or you can buy the paper book. I saw the one that Ron, K4WZ has and it is very interesting. Here is a link to the KE7X site http://www.ke7x.com/home/guide-to-the-k3/order