Trisilco Folec can provide qualified field engineers to obtain factual path data. From this data, evaluations can be performed to determine the performance level of the system when installed. The main requirement for radio links is line-of-sight. Conducted field surveys will provide the basis to help determine the selection of paths, antenna elevations, sizes and computation of the received signal levels and fade margins. When conducting a path survey, Trisilco Folec will verify site coordinates, ground elevations and record trees and man-made obstruction along the path. This information will be recorded on the appropriate path profile.