Digital Microwave Transmission and Link Design
•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
b.Merits and Demerits of microwave communication
c.Application areas for m Microwave transmission
•Radio Equipment Characteristics
a.Equipment Configuration (Indoor, Outdoor, Split)
b.Basic Radio System Diagram
c.Radio Modems and MUX (PDH/SDH)
d.Bottlenecks of TDM Radio
g.Transceivers and Branching filters
h.Frequency and Space Diversity
b.Electrical Performance Parameters
c.Radiation Pattern Envelope
d.Standard Parabolic, Shielded, Grid, Focal Plan antennas.
a.Free Space Loss
a.Establishing Planning Briefs
b.Path profile calculations
e.Calculation of Tower Heights: Fresnel Zone and Earth Bulge
f.Path and Site Surveys
•Microwave Link Engineering
a.System gain and fade margin
c.Multipath fade margin: Vigent Barnett
d.Rain fade margin: ITU-R rain model
e.Protection vs. Diversity
f.Measures to overbuild a link
a.Causes of interference
c.Basic ITU arrangement of frequency planning
•Quality and Availability Objectives
b.G.821 and G.826 performance objectives
c.ITU-R Hypothetical Reference Path
d.Causes of unavailability and short outages
Who Can Benefit
Professionals involved in the field of operation, maintenance and planning of microwave radio systems.
•VSAT Networks: Planning, Design & Implementation
Consultant led classes, tutorial exercises and Path Loss 4.0 Microwave link planning tool.
•Radio Fundamentals (or have equivalent experience)
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Tools and Options
Organiser Contact Details
United Arab Emirates
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