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OC Board of Adjustment – 6/8/2015 Page 12 of 68 Mark Micol: Can the tower be modified to add an additional 70 feet? 1 2 Lee Kerlin: I doubt that. I couldn’t say, but I doubt that. 3 4 Tom Johnson: As I understand that was a recent tower approved in Durham County and it is just a restrict ion on height 5 because it was a monopine and the height was restricted as part of that process. I do want to show this. It is what is 6 called the propagation map from the site we are proposing. Lee just described what that does for you with the existing 7 site so you can see the coverage here is the RTP and this is the receive signal, code power, this is the pilot channel of 8 the site. What we are receiving on a handset and this is a propagation so this is a tool we use to estimate the 9 coverage. You can see we get a lot of coverage on Mt. Sinai Road out into the county which is what we are looking for. 10 We also make a firm connection back to our existing network towards northeast. We definitely connect towards the 11 south back to 40 and I have good coverage moving into my neighborhoods to the southeast which is also important. 12 13 Jeff Schmitt: My phone does not show me all these numeric things so you could assist me with bars? 14 15 Lee Kerlin: It is difficult to say that would vary by model handset, mapping, eac h handset and/or carrier maps different 16 bar levels to different signal strengths. It is really difficult to say and I wouldn’t want to say something that isn’t true . 17 18 Jeff Schmitt: I guess generally, the palest green is the poorest communication? 19 20 Lee Kerlin: Yes, you would have the lowest level of signal there. We are talking about outdoors there, less likely in 21 building coverage in that situation but possibly in a car and that keep us running down the road. If there is an accident, 22 someone is able to raise the tower from those cover levels. 23 24 Samantha Cabe: I have a question, is north actually the top of the page? 25 26 Lee Kerlin: Yes. That would be true north to the top. 27 28 Tom Johnson: On the next slide, this is the American Tower slide; just describe what you are giving up in terms of that. 29 30 Lee Kerlin: If you can remember the one before, you can see the big difference in coverage out Mt. Sinai Road towards 31 the county. Also, a reduction of coverage of Erwin, my fear is that I would not make a good co nnection to the other site. 32 Part and parcel of cell towers and using the cell phone is mobility and that is the ability to move from one cell to the next 33 cell. A hold between the two sites would be every time you drove down the road, you would drop a cal l there so we are 34 looking to make that continuity there. Also, you could see the reduction in coverage to the southeast which is towards 35 the neighborhoods I am trying to cover there as well. 36 37 Jeff Schmitt: Mt. Sinai Road is….. 38 39 Lee Kerlin: That is moving out towards the county to the west, to the left. 40 41 Jeff Schmitt: Northwest. 42 43 Lee Kerlin: And Erwin running northeast. This is the site as proposed and this is the American Tower site. You can see 44 the difference in terms of what you are losing between those two. 45 46 Tom Johnson: To put it in perspective, the co -location opportunities are on this tower for other carriers who would 47 come in the future. The third spot on this tower is still a 45 foot better center than the ATC tower. The likelihood of 48 people wanting to co-locate on the ATC at that height is low depending on what the coverage objective is. It just 49 doesn’t meet our objectives. 50