tailieunhanh - cwna certified wireless network administrator official study guide phần 10

Máy ảnh kỹ thuật số cho chụp ảnh các địa điểm cụ thể trong một bộ sạc thiết bị pin Antenna suy hao (hình 11,9) đo bánh xe (Hình 11,10) giỏ hàng phù hợp hoặc cơ chế khác để vận chuyển thiết bị và tài liệuNếu cuộc điều tra trang web thường xuyên là một phần của doanh nghiệp của bạn, | 315 Chapter 11 - Site Survey Fundamentals Digital camera for taking pictures of particular locations within a facility Battery chargers Antenna attenuator Figure Measuring wheel Figure Appropriate cart or other mechanism for transporting equipment documentation FIGURE Antenna attenuator FIGURE Distance wheel FIGURE Access point with a battery pack If frequent site surveys are part of your business create a toolkit with all this gear in it so that you will always have the necessary site survey tools on hand. The last item in the CWNA Study Guide Copyright 2002 Planet3 Wireless Inc. Chapter 11 - Site Survey Fundamentals 316 above list - a cart - will become a valued possession after making a few dozen trips back and forth across a large facility moving the hardware and site survey support gear. Figure shows the type of cart that can be used to carry gear. FIGURE Site Survey travel case Conducting a Site Survey Once on site with a complete site survey toolkit walking several miles throughout the client s facility is common. RF site surveying is 10 surveying and 90 walking so comfortable shoes should be worn when performing site surveys in large facilities. However the general task has not changed collecting and recording information. Beginning your site survey with the more general tasks of recording non-RF related information is usually the best course of action. Indoor Surveys For indoor surveys locate and record the following items on a copy of the facility blueprints or a drawing of the facility. AC power outlets and grounding points Wired network connectivity points Ladders or lifts that will be needed for mounting access points Potential RF obstructions such as fire doors metal blinds metal-mesh windows etc. Potential RF sources such as microwave ovens elevator motors baby monitors GHz cordless phones etc. Figure shows a spectrum analysis of a GHz phone. Cluttered areas such as office cubical farms CWNA Study