Courses Details
Course Overview

Digital microwave radio systems are extensively used for mobile backhauls, local, junction and trunk networks.  With higher capacity broadband implementations such as LTE and WiMAX, microwave backhaul has gained renewed importance.  Understanding planning issues such a reliability and availability becomes even more critical.   This course covers all stages of terrestrial microwave point-to-point network build-out from initial planning and feasibility studies to system deployment.  It provides participants with the theoretical knowledge and the practical skills for planning and design of a microwave link.   Emphasis is given to practical guidelines and activities involved in putting microwave systems into operation.  It describes the process behind planning and creating a business case for a microwave network, including the advantages and disadvantages, and includes discussions that will help executives to make an informed decision about whether to build a microwave network.

Course Schedule
Target Audience

Professionals involved in the field of operation,maintenance and planning of microwave radio systems.


Course Prerequisites

 Radio Fundamentals (or have equivalent experience)


Expected Accomplishments
Identify factors which affect microwave propagation
Outline the general layout of microwave transmit and receive chain
List the features of a next generation   IP microwave radio system
Interpret a microwave antenna radiation pattern envelope 
Compare and contrast the different microwave antennas 
Perform path profile planning from topographical data
Perform link budget calculations 
Compare a pure Ethernet radio system with a Hybrid radio system.
Explain how Ethernet traffic is handled by modifications to a legacy TDM (PDH/SDH) based microwave system
Describe how packet synchronization is supported
Compute fade margins based on Vigent Barnett and ITU Rain model
Conduct frequency planning based on ITU guidelines
Understand quality and availability objectives, metrics and methods used to improve these

Course Outline
Introduction 
oMicrowave Spectrum
oMerits and Demerits of microwave communication
oApplication areas for m Microwave transmission
oPath planning

Radio Equipment Characteristics
oEquipment Configuration (Indoor, Outdoor, Split)
oBasic Radio System Diagram
oRadio Modems and MUX (PDH/SDH)
o Bottlenecks of TDM Radio
oEthernet Radio
oHybrid Radio
oTransceivers and Branching filters
oFrequency and Space Diversity

Microwave Antennas
oAntenna Characteristics
oElectrical Performance Parameters
oRadiation Pattern Envelope
oStandard Parabolic, Shielded, Grid, Focal Plan antennas.
oRadomes

Microwave Propagation
oFree Space Loss
oReflection
oScattering
oDiffraction
oAtmospheric Refraction
oAtmospheric Absorption
oRain Attenuation

Link Planning
oEstablishing Planning Briefs
oPath profile calculations
oRadio repeaters
oAtmospheric Refraction
oCalculation of Tower Heights: Fresnel Zone and Earth Bulge
oPath and Site Surveys
oCase Study

Microwave Link Engineering
oSystem gain and fade margin
oAvailability Models 
oMultipath fade margin: Vigent Barnett 
oRain fade margin:      ITU-R rain model
oProtection vs. Diversity
oMeasures to overbuild a link

Frequency Planning
oCauses of interference
oInterference conditions
oBasic ITU arrangement of frequency planning
oFrequency reuse

Quality and Availability Objectives
oAvailability objectives
oG.821 and G.826 performance objectives
oITU-R Hypothetical Reference Path
oCauses of unavailability and short outages