The method I use is similar to the one described by Francesco. Launch your satellite into an orbit of 475km above Kerbin. From there, continue just as he describes: wait until the KSC is 90 degrees ahead of you (this is assuming that in a reference circle, your satellite would be at 0 degrees.) A handy trick here would be to put a ship on the launch pad then switch back to your satellite. That way, you have a specific point on your map. From there, burn prograde until your apoapsis reaches 2868.75 km. Then circularize when you reach that altitude. Depending on your accuracy, your ability to estimate when the KSC is 90 degrees ahead of you, and your precision on the controls, the KSC might be a little ahead or behind you. If it is, don't worry. If it is ahead of you, then decrease your orbit by a few kilometers and wait until the KSC is below you then reestablish the keostationary orbit. If it is behind you, raise your orbit a bit and do the same thing. This maneuver became a staple for me when I started to play with RemoteTech. Hope this helps!
The method I use is similar to the one described by Francesco. Launch your satellite into an orbit of 475km above Kerbin. From there, continue just as he describes: wait until the KSC is 90 degrees ahead of you (this is assuming that in a reference circle, your satellite would be at 0 degrees.) A handy trick here would be to put a ship on the launch pad then switch back to your satellite. That way, you have a specific point on your map. From there, burn prograde until your apoapsis reaches 2868.75 km. Then circularize when you reach that altitude. Depending on your accuracy, your ability to estimate when the KSC is 90 degrees ahead of you, and your precision on the controls, the KSC might be a little ahead or behind you. If it is, don't worry. If it is ahead of you, then decrease your orbit by a few kilometers and wait until the KSC is below you then reestablish the keostationary orbit. If it is behind you, raise your orbit a bit and do the same thing. This maneuver became a staple for me when I started to play with RemoteTech. Hope this helps!