Samsung OTA tuner problem

Archived from groups: alt.tv.tech.hdtv (More info?)

I have a Samsung SIR-T151 Digital OTA tuner which works well except for one
problem I live in rural Pa. and have to pluck my signals from two different
geographical areas, using a high gain antenna and a rotator, spread
approximately 120 degrees apart. If I programme the tuner to automatically
gather the cluster of signals from one direction, it looses the cluster I
have memorised from the other. I am not able, either, to select the
"missing" ones using the manual selection process, despite the signal being
strongly received when automatically memorized. So, it is a flip.