Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works Great with Correct Antennae Placement

When I first got this and hooked it up it didn't really work that well. Then I sat down and read the manual and now understand how critical antennae placement is. Followed the recommendations and now it works great. I went from almost nothing, to five bars back in my bedroom.I have noticed that it does lose signal for a few seconds randomly while I'm on a call. It doesn't drop the call completely, there's just a brief second when I can't hear anything. I think it might be the unit's signal competing with the actual signal from outside.