21 software found
SoftWright LLC Software
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TAP Software
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SoftWright - Intermodulation Products Module
The Intermodulation Products module is used to compute intermodulation products as a function of frequencies and other transmitter and receiver specs entered manually or imported from a database. After executing the study, the intermod report generator filters and sorts results in order to isolate intermod problems that are likely to ...
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SoftWright - Asset Manager Module
SoftWright’s Asset Manager is specifically designed with wireless communication sites in mind. It can operate as a stand-alone software package or fully integrated with TAP software. This module is used to document all the details of how equipment is catalogued, installed and maintained at fixed radio sites as well as similar information about mobile units that are being maintained. It organizes related wireless assets, such as all the equipment ...
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SoftWright - Version RF - Mobile Radio Transmitting and Receiving Facilities Software
The RF Facilities Module is used to build up a database of both fixed location and mobile radio transmitting and receiving facilities. This includes templates of typical configurations of antennas, transmission line, transmitters and receivers to be recalled for use at a later date to save time in data entry when setting up RF studies. This fixed facility database can also be populated directly from imported data previously entered into EXCEL, Access or ...
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SoftWright - Shadow Mapping Module
The Shadow Map Module identifies locations that: 1) are shadowed (obscured) by terrain or obstructions; 2) have line of sight, but obstructions within the specified (e.g., 0.5 first) Fresnel zone for a specific frequency, and 3) have clear line of sight with no obstructions within the specified Fresnel zone. For specified transmit and receive antenna heights, the shadowed areas around a site are clearly ...
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SoftWright - Map Crossing Module
Given a set of transmitter and receiver geographic coordinates, the Map Crossing module will calculate distance and bearing, crossing points on the maps and a list of required topographic maps (if the path is in the US). This greatly facilitates the preparation of paper maps for a field inspection of a proposed or problematic path. The module supports multiple map scales, calculates corner coordinates for all maps on path, calculates distance from corner ...
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SoftWright - Land Use Module
The Land Use module imports USGS National Land Cover Database (NLCD) files and Global Land Cover (GLC) files and uses them in the radio coverage predictions and link analyses. Loss values may be defined for any frequency ranges for each specified type of land use to permit the inclusion of localized environmental conditions in predicted system performance. Recommended loss values are readily available. The USGS NLCD files categorize land use attributes, ...
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SoftWright - Topo Utilities Module
The Topo Utilities module will import USGS formatted ASCII files in their 3″ and 30 meter DEM resolutions and convert them to the TAP™ binary format for use in TAP™. An editor for TAP™ binary formatted topo data files (30″, 3″ and 30 meter) may be used to modify the contents of these files to make individual corrections of anomalies in these files. A viewer will graphically display any of these TAP™ binary ...
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SoftWright - Longley-Rice (aka ITM) Propagation Module
The Longley Rice (aka Irregular Terrain Model) Propagation module is the most flexible and popular TAP propagation module. It is valid for a wide frequency range from approximately 30 MHz to 30 GHz. The Longley-Rice model is an implementation of many of the equations presented in the NTIA Tech Note 101. In addition to expected parameters such as frequency, effective radiated power (ERP), antenna pattern and antenna heights a number of other parameters ...
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Bullington Propagation Module
In the Bullington model, computed free space field strength is adjusted for obstruction attenuation for knife-edge diffraction based on the method described in “Radio Propagation for Vehicular Communications” by Kenneth Bullington (IEEE Transactions on Vehicular Technology, November 1977). Facility and path parameters (transmitter power, directional antenna, beam tilt, earth curvature correction, antenna heights, etc.) are all user-specified ...
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Okumura Propagation Module
The Okumura model computes basic median field strength and then adjusts for factors such as terrain, type of area (urban, suburban, open, etc.), terrain slope, etc. from the families of curves, as described in “Field Strength and its Variability in VHF and UHF Land-Mobile Radio Service”, Review of the Electrical Communications Laboratory, Vol. 16, Numbers 9-10, Sep.-Oct, 1968, by Yoshihisa Okumura, et. al. The Okumura adjustments for area ...
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Rounded Obstacle Propagation Module
The Rounded Obstacle model is based on Section 7 (“Diffraction Over a Single Isolated Obstacle”) of Tech Note 101(Transmission Loss Predictions for Tropospheric Communication Circuit, 1967, NTIS), treating path obstructions as rounded obstacles as described in Section 7.2. In addition, methods from Section 9 (“Forward Scatter”) are used to compute tropospheric scatter losses. The two loss components may be combined in any of ...
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Broadcast/SMR (FCC Part 73) Propagation Module
The Broadcast/SMR module of SoftWright’s Terrain Analysis Package (TAP) uses topographic elevation information to compute height above average terrain (HAAT) from a specified site. This information is used to compute field strength from the f(50,50) and f(50,10) curves for FM and TV from Part 73 of the FCC Rules. Distances to a specified signal contour are calculated for SMR (specialized mobile radio) by appropriate deration of the Part 73 curves. ...
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Carey (FCC Part 22) Propagation Module
The Carey module uses topographic elevation information to compute height above average terrain (HAATs) from a specified site. This information is used to compute field strength from the f(50,50) and f(50,10) Carey curves from Part 22 of the FCC Rules. Distance to service contours for Cellular Geographic Service Area (CGSA) are also calculated, as well as the calculations described in FCC Report and Order 94-201. The Carey Module also allows calculation ...
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Hata/Davidson Propagation Module
The Hata/Davidson model uses developed empirical formulas derived from the many Okumura families of curves. The calculations depend upon which type of environment is present in the coverage area – urban, large city, small/medium size city, suburban or open area. Although Hata’s model requires the inclusion of transmitting and receiving antenna heights it does not contain any of the path-specific corrections included in the more detailed ...
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Egli Propagation Module
The Egli module is an implementation of John Egli’s methodology published in October, 1957 in the Proceedings of the IRE. This model is derived from measured data out to a distance of approximately 50 miles and over gently rolling terrain with average hill heights of approximately 50 feet. It relies on frequency, distance and heights of transmitting and receiving antennas. It does not rely on localized path elevation ...
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VHF/UHF Reliability Module
The VHF/UHF Reliability module provides a flexible, easy-to-use tool for designing and evaluating link reliability in both UHF and VHF bands. It provides calculations of received signal level and fade margin. Using the flexibility of the RF facilities database in TAP, transmit and receive sites can be evaluated in different combinations of locations and hardware configurations to find the best design for each site and the best overall route for multiple ...
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Microwave Reliability Module
The Microwave Reliability module provides a flexible, easy-to-use tool for designing and evaluating microwave link reliability. It provides calculations of various models of rain attenuation up to 100 GHz, air absorption, path climate and terrain factors, fade margin, reliability, outage, frequency and space diversity improvement. Performance can be calculated for both digital and analog links. Using the flexibility of the RF facilities database in TAP, ...
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Reflection Analysis Module
The Reflection Analysis module will locate potential reflection points along a path and evaluate the potential destructive interference on the received signal. For each point along the path, the antenna heights and path elevation at the point are used with Figures 7A and 7B from Lenkurt. The reflection point distance for that path elevation is determined for both 2/3 (Figure 7A) and 4/3 (Figures 7B) earth ...
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AutoPath Module
The AutoPath module enables TAP to automate setting up path specifications eliminating manual data entry. The program can then plot a path profile for each specified path, as well as compute the field strength value at the end of the path. Path information can be defined from a single transmitter site, or for a different transmitter site for every path. The path information (end point coordinates, antenna heights, earth curvature, transmitter ERP, etc.) ...
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Aggregate Coverage Module
The Aggregate Coverage module takes the TAP signal strength results from multiple area coverage studies and calculates a new resultant area coverage. This aggregate coverage reflects the combination of multi-site and/or multi-frequency area coverages in a particular region to provide best server net coverage, as well as Simulcast Delay Spread (SDS) coverage. Areas of specific carrier to interference levels (C/I) may be calculated with this module and ...
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AutoCoverage Module
The AutoCoverage module enables TAP to automate setting up coverage specifications, thereby eliminating manual data entry. The program can then calculate and plot a coverage for each set of specifications. The facility information (geographic coordinates, antenna heights, transmitter ERP, etc.) can be entered manually into TAP, or you imported from another source, such as a spreadsheet or ...