1. Site Survey UCSC -Engineering 2 Linda Rosewood – Lynne Sheehan – Bob Vitale

2. 1.Compare 802.11b/g coverage using 2.2dBi “duck” and 5.2dBi ceiling mount antennas. 2.Investigate interesting propagation effects -through walls, windows, between floors, down corridors. 3. Map a coverage area for the 2 nd floor using APs positioned in the corridor and positioned in a lab. Do the results help determine AP placement for building? Objective: Learn About & Understand Propagation in the Engineering 2 Building South Corridor Note “decorative” metal ceiling tiles

3. 2 nd Floor Survey Areas Faculty offices Labs Academic Support Conference room Conference room Loc #2: Rear Corridor Ceiling, AP above 5.5dBi antennas hang below Loc #1: Inside Lab, survey done with 2.2dBi “ducks” and 5.5dBi ceiling mount omnis

4. Ducks vs. Ceiling Mount Omni 5.5dBi Suspended Ceiling Mount Omni- Directional Antennas Cisco AIR-ANT1728 Cost: $105 each 2.2dBi Rubber Duck Antennas Cisco AIR-ANT4941 Cost: $15 each

5. 9 11 13 14 12 1615 6 4 7 5 108 32 E2 2 nd Floor West Survey – Rubber Duck vs. Ceiling Mt Omni TestPoint Value (+= 5.5dBi omni better) 1

6. RubberDuck Ceiling Mount Omni Diff Location #NameAverageSTDEVAverageSTDEV + = om 1 Room 208 3 feet from AP 6376110-2 2 Outside Rm 208 Main Cooridor 4975455 3 Bench 1 Outside Rm 210 4965455 4 Bench 2 Outside Rm 215 3353793 5 Room 216 cube close to AP 3233542 6 Room 216 cube furtherest away 3143342 7 Room 215 card towards AP 2242352 8 Room 215 card away from AP 192 31 9 Room206 Card pointed South A/C Unit between AP/Card 4945434 10 Room 205 cube closest to windows 3944526 11 Hall behind Room 208 53105976 12 Room 237B Office w/Door closed 4534934 13 Interactive Space 4834981 14 Benches outside E2-219 2142564 15 Room 201 Last Cubicle on Windows 3734255 16 Cowboy Chairs 2nd Chair in 206183-2 17 Room 308 Immediately above AP 162 30

7. Proposed Location 2 nd AP for E2 2 nd Floor – East E2 2 nd Floor – East Survey

8. Glass Corridor vs. Free Space Is there a difference at 173 feet?

10. 802.11b Propagation FreeSpace vs. Through Coated Glass

13. Proposed 2 nd Floor Coverage Plan Faculty offices Labs Academic Support Conference room Conference room Channel 1 Channel 11 Channel 6 Channel 1