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SoftWright Releases TAP™ 7.2 RF Propagation Software with Updated Features
July 1, 2019

SoftWright, a GSA contract holder, is the developer of the Terrain Analysis Package (TAP™) PC-based terrestrial RF propagation software. TAP™ is used by federal agencies, state/local public safety departments, energy companies, utilities, and consultants to evaluate radio transmitter sites; predict, map, and analyze radio coverage; plan land mobile radio and cellular systems; conduct intermodulation and adjacent channel interference studies; and design microwave, VHF, and UHF links. TAP™ models the physical layer of communication systems – specifically, RF propagation over terrain. However, TAP™ provides straightforward study creation and visualization options to conduct a wide range of advanced wireless communication analyses, including analyses for Project 25 (P25) and TETRA systems. SoftWright’s all-new TAP 7 software now includes updated Intermodulation, Omni Pattern Distortion, and Stacked Antenna software tools. 

The Intermodulation Module is one of our most popular modules.  It is used to compute intermodulation products as a function of frequencies and other transmitter and receiver specifications. Rather than the standalone TAP 6 calculator, implemented through multiple windows, intermod functionality is now tightly integrated with the TAP 7 project model.  A TAP 7 project can include Path, Coverage, and Intermodulation studies. After executing the study, the intermod report generator filters and sorts results in order to isolate intermod problems that are likely to occur.  

The Pattern Distortion module models the horizontal plane pattern distortion of a side mounted, vertically-polarized, omni-directional antenna when mounted on a metal tower structure. It uses the mounting orientation and distance from the tower, as well as the size and type of tower, frequency and nominal gain to calculate the distorted pattern.   This modeled pattern can then be plotted and saved to the antenna pattern library and used later to improve accuracy when calculating area coverage.

The Stacked Antenna module adds multiple vertically-stacked horizontal plane directional antenna patterns (with different powers and major lobe azimuths) and calculates an approximate composite pattern.The program combines the horizontal plane (or “azimuth”) pattern of multiple directional antennas, including the effects of uneven power distribution and different azimuth orientation for each antenna. The program assumes the antennas are stacked vertically, with no electrical coupling between the antennas that would affect the individual horizontal pattern of each antenna. Consult the antenna manufacturer to determine the suggested vertical spacing (typically 0.6 to 1.0 wavelengths).

Visit www.softwright.com for more information or to download a free demo version of the latest TAP™ software.

 

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