Case Studies

Where we excel

Reliability of Frequency Division Multiplexer Racks.

The Problem

  • Reliability of ageing Frequency Division Multiplexer (FDM) racks – resulting in service delays
  • Customer was looking for assistance in scoping an overhaul programme to provide maximum benefit

Challenges for SET

  • Additional float stock was required to support the overhaul
  • Equipment contains various obsolete and custom components
  • Safety case was complex for fit form and function replacement
  • 3 parties involved in the overhaul


  • Technical report based on analysis of the design and historical repair data.
  • Several costed options offered, along with rationale for each


  • SET’s proposal selected
  • New design was independently audited and approved by SNC Lavalin

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