PTP Path Profiler

Cambium has produced the web based utility PTP Path Profiler to create path profiles, which can be directly imported into PTP LINKPlanner:

The file output by PTP Path Profiler is complete in the sense that it includes the Latitude and Longitude. Most of the imports from other software do not address this problem and thus it is important to correct the Latitude and Longitude in the PTP LINKPlanner for translated files.

PTP LINKPlanner automatically generates requests and sends them to PTP Path Profiler (either as soon as the link is created or from the menu options Project, Get Profiles). PTP Path Profiler imports the path profile data automatically into LINKPlanner. See Obtaining Link Profiles.

When path profiles are loaded into PTP LINKPlanner, verify them as described in Adjusting Link Profiles. The following questions must be answered:

• Has PTP Path Profiler given the correct ground height at each end of the link?
• Has PTP Path Profiler given accurate data for any sections of the path that pass over water? The method of survey, which is radar on board a satellite, may cause inaccuracies over water. The ground return is dispersive in angle, ensuring that some power goes back to the satellite. A water return in calm conditions can be reflected in one direction away from the satellite, introducing potentially large errors.