What is the modulation type and data rate? Could be a delay spread
issue. Maybe the outside unit is receiving a reflected signal from the
surface of a nearby structure and is experiencing inter-symbol
interference that by chance the base unit is shielded from. This would
occur only if a high symbol rate was being used.



i was thinking about that...but no....

all the multi-path paths are reciprocal as well,,, so whatever the
delay spread is one way should be the same the other way.

Mark