I built an experimental scope mount to track sats with movement in only one axis. I set it up with the help of "closest approach" figures from Mr. Orbit.It allowed me to track sats from horizon to horizon with a spotting scope. Here's the url: http://www.geocities.com/SiliconValley/Pines/7438/sattrak.html Hope someone else can try it out. I plan on building a more accurate mount soon.... this one had a lot of slop and sometimes required minor corrections of the azimuth while tracking... --------------------------------------------------- Dishheads, dishheads, Roly poly dishheads! Computer controlled TVRO - http://www.geocities.com/SiliconValley/Pines/7438/dishhead.html There's a fine line between a purr and grrr! ---------------------------------------------------