That's very simple to answer Pamela.
The Dreambox tuner, although not capable to autosearch, is VERY sensitive.
To be able to scan a satellite you can either have a satellite database file in use (satellite.xml) or do manual scan transponder by transponder.
For the pssionate DXer the following solution is the ultimate:
Enter all possible satellite / transponder combinations into the satellite.xml database and the Dreambox will even find the weakest feeds which come and go.....
That's how I do it and it works well!
