Could you explain this more. Why would you locate satellites? I don't understand how this would help to find out in what direction your "object" is? And how can you "aim" to a satellite, if you do not know where it is..?
Hi MisterT,
Firstly, I'm new to this and open to correction!
The tracker will follow the source of the NMEA sentence. These sentences can be transmitted from many sources, satellites, vehicles, animals, RC models, with a GPS sending out 'sentences', in fact it's open to ideas what you would like to track. There are different 'sentences' that can give location, time, direction, height, speed etc in ASCII form.
Some of the things are interesting to track don't have strong signals, so it's good to aim the antenna. To start the operation, either a guess, a known location perhaps from tables, or calculation can be got from the web or scan for a signal.
Say you are tracking a satellite. First you would have to have some idea where it is, until a location sentence is received, then the tracker will take over. Some satellites are used to communicate by radio.
Say you are tracking a radio control model, you can aim the antenna while it is in sight, then as it goes away, the tracker follows it. Some of these models have video sent back to 'base' and these signals tend to be difficult in certain circumstances, that are improved by a tracker.
I have drawn a mock up of a tracker, to give you an idea.
I hope this helps you understand, but ask anything.
Cheers, Camerart.