System Design and Integration

An RF System Design requires many steps, and many calculations to make sure the final system delivers reliable and redundant communications. In some applications, such as mining, the system must also be scalable to accomodate the changing topography.

A good design begins with detailed conversations with the client to determine:
  • Performance Needs
  • Budget
  • Time Frame
  • Future Growth or Changes
  • Specific Requirements
  • Vendor Preferences
Evaluation of the Site:
  • Paper Evaluation
    • AutoCad Files of the Area
    • 7.5 min Maps, if available
    • Coverage maps
    • Profiles
  • Preliminary Report - NOT a final report - this is a step in the process and usually will tell you what will NOT work, thus saving time during the field evaluation.. On site evaluation is critical to a well designed system.
    • Site List
    • Feasibility for Backhaul
    • Preliminary Node Coverage
    • Preliminary Configuration
  • On Site Survey
    • Evaluate Site Characteristics
      • Terrain
      • Vegetation Size, Type and Density
      • Man-made obstructions - buildings, towers, power lines
      • Potential Node locations
    • Confirm backhaul feasibility and site locations
      • Confirm exact Site Coordinates by GPS
      • Check critical points in path for:
        • 1st Fresnel Intrusions
        • 2nd Fresnel Reflections
        • Reflection points over water
        • Reflection points that are not blocked
    • Confirm areas the site needs covered
      • Drive test to creat a "snail trail" showing critical coverage areas
      • Collect and record existing frequencies in the area for post-processing after the drive test
    • Visually look at required coverage from various backhaul nodes
      • Determine Preliminary Antenna requirements
        • Azimuth beamwidth
        • Elevation beamwidth
  • Prepare preliminary System Design based on survey
  • Final design will be reviewed by engineering to confirm
    • Distances
    • Profiles
    • Coverage
    • Link Budgets
    • Fade Margins
    • Solar Calculations, if required
    • Power BackUp
  • Preliminary Report and Conference Call with Client
    • Recommended Solutions
    • Possible Final System Designs
    • Options
      • Pros and Cons of Radio Options
        • Type of Solution
        • Vendor Options
        • Equipment Options
        • Rough Order of Magnitude Costing
  • Final Report
    • Site List
    • Maps
    • System Diagram
    • Detailed Installation Drawings
    • Detailed System Drawings
    • Detailed Link Budgets
    • Detailed Solar Calculations
    • Detailed Power Backup Calculations for AC Sites
    • Bill of Materials with approximate costs
    • Project Phases and Costs
    • Time Frame
    • Permitting and licensing
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