Services Offered

The following services are offered:

•   Requirements analysis and definition
•   Project scope definitions
•   Design reports
•   Network specifications
•   Cost estimates
•   Tender evaluation
•   Technical option analysis
•   Design reviews
•   Presentations
•   Prepare drawings
•   Microwave radio link design according to ITU-R P.530 recommendations
•   Radio line of sight and obstruction analysis
•   Reflection, multipath and diffraction analysis
•   Radio repeater site selection
•   Evaluation of existing radio link performance
•   Optical fibre cable network design
•   Multiplexer network design
•   Site surveys (line of sight surveys)
•   Transmission solutions
•   Network optimisation studies
•   Constructability analysis

Example of technical services relating to microwave radio links

The following types of services are offered:

• Repeater site selection (if required)

• Desktop based map studies, coverage analysis and database searches to identify candidate sites
• Desktop based selection of sites for optimum line of sight, road access, availability of electrical power, safety, environmental impact, land owner issues and cost
• Site visits to confirmation of site layout and suitability
• Confirmation of line of sight by conducting site visits and using mobile towers if required
• Radio equipment selection and modelling
• Confirmation of detail equipment parameters
• Radio frequency spectrum coordination

• Radio path engineering

• Determine applicable clearance criteria and antenna heights
• Select minimum earth radius factor for problem areas
• Investigate effect of path obstructions (terrain, vegetation, buildings) on link performance
• Rain attenuation
• Space diversity and antenna separation
• Multipath, diffraction and reflection analysis
• Determine optimum antenna heights for various k values taking tower and clearance rules into account
• Using software planning tools for desktop investigation   (Pathloss 5.0 with SRTM and ASTER DTM)

• Radio link engineering

• Design objectives for link availability
• Calculation of predicted link availability
• Equipment configuration for reliability
• Optimise link availability, tower requirements and costs

Radio repeater site options analysis

Radio link path profile (Pathloss 5)

Space diversity antenna separation analysis