Hello everyone. I have a lot of questions about APRS via satellite. I know very little about it right now so I will probably use a lot of wrong terminology so please bear with me. From what I understand, there are birds up there that simply act as digi's. As you might expect, they are not always avaiable for you to use. Questions section 1. I am running a D700 mobile and am wondering about antenna's. I currently have a mobile dual band antenna. That is, of course, vertically polarized. Can I communicate with satellites with this type antenna? I know that during field day this year went they were doing voice ops through satellite they were using a yagi type antenna. Do you have to have a special antenna to communicate through a satellite? 2. What is the best way to pick the "bird" you want to use? It seems there are several to choose from. And what is the best way to track that bird so that you know you are getting into it? 3. What are your settings to make your D700 work APRS through a satellite? In short, I am looking for some elmering on this topic. Thanks for anyhelp.