Thanks AJ for clearing that up I found it really odd at first but your explanation makes perfect sense. My Sensorly finally updated so there should be 3 purple circles smack dab in the middle of Seattle but don't come rushing out trying to map it because once I hit our 40th floor the signal drops beyond the threshold for at least my phone to connect to it no matter what I tried so I don't know. I walked around a couple blocks trying to make my phone connect to it on ground level with no luck.