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T-Roof Description || Program Features and Fields || Sample Output || Professional Edition

Comply with FCC Limits The FCC has implemented specific limits for radiation at different frequencies and must be applied to areas both accessible to employees of the responsible company and to areas accessible to the general public. The FCC now requires that all RF antennas be within compliance limits by September 1, 2000. The compliance limits are laid out in OET Bulletin No. 65, Edition 97-01, entitled "Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields." T-Roof is an engineering tool designed to help corporations meet these requirements when dealing with rooftop scenarios and antenna farms. Results You Can Use T-Roof reports RF radiation analysis results in terms of the total percentage of the compliance limits specified by the FCC. This means that areas above 100% of the limits are out of compliance according to FCC regulations. Since different types and frequencies of antennas have differing methods of measuring compliance, this is a very convenient result whenever multiple antennas of any kind are involved. Additionally, T-Roof will report results in terms of the maximum permissible exposure (MPE) time allowed. In both cases, two separate reports will be generated in terms of controlled exposure (such as trained and informed employees), or uncontrolled exposure (such as the general public or non-maintenance personnel.) Thus, four simple to read and use charts and data sets are generated. Analyze Rooftops and Multiple Antennas T-Roof is designed to easily handle multiple antennas of various types, frequencies, sizes, and uses. T-Roof can handle antennas mounted on towers, on the ground, on rooftops, or in any combination. T-Roof analyzes an array of points over a two dimensional area at any specified elevation. The results can be displayed in a variety of color-coded formats, or exported as raw data for other engineering purposes. T-Roof also takes into account Bulletin 65 guidelines to mark off areas that are in compliance, out of compliance, or varying degrees in between. Attention to Detail One of the most powerful features of T-Roof is the level of detail that can be used to perform the analysis. For example, T-Roof takes into account the gain, diameter, length, height, polarization, tilt, azimuth, frequency, and beamwidth for each antenna used in the analysis. Regional loss ratios (such as the front to back ratio) are also used relative to the antenna's mounting arrangement. Power levels can either be entered directly or calculated from transmitter power and line loss values. This information is used in conjunction with the formulas specified in Bulletin 65 to create an accurate and detailed RF Analysis study on your rooftop or antenna form. Additionally, if you cannot find all of the information needed for an antenna, T-Roof can use acceptable default values for most cases. Analyze Towers with T-Roof Pro With an upgrade to the Professional Edition of T-Roof, you gain the ability to perform detailed RF analyses along towers, in a manner similar to T-Safe. However, unlike T-Safe, the T-Roof Pro tower analysis factors in antennas on multiple towers, and uses the same detailed three-dimensional analysis as T-Roof. T-Roof Pro is the complete RF Safety Analysis solution for all of your antenna and tower sites. Combine with other T-E Software If you are already using T-Site or T-Safe to store your antenna system data or perform tower analyses, you can conveniently import most of the data that you need for T-Roof with the push of a button. This saves time and aids with the RF analysis process. What are the differences between T-Roof, T-Roof Pro and T-Safe? Please see our RF Safety Software Comparison Guide for more detailed information. Other downloads...

The T-Roof database makes entering your antenna system data a snap! Quickly and easily set up your rooftop system for analysis. (enlarge) See also Features. T-Roof provides several useful charting formats to satisfy your engineering needs. (enlarge) or see Additional Output. With T-Roof, you can easily store the resulting data or charts directly in the T-Roof database for future use. You can also export this data to spreadsheet format, text files, or bitmap files for your engineering needs. The above chart is one example of what you can do with this resulting data using Microsoft Excel. (enlarge) See also Additional Output. The T-Roof Pro upgrade gives you the additional power to perform vertical tower analyses, similar to the functionality of T-Safe (enlarge)