Services Provided


Requirements Definition – 


Commercial electronics products need to have the right kind of regulatory compliance markings before they can be offered for sale to the US market and before they can be offered to Europe or Worldwide.  We can help you wade through the myriad of regulations, standards, markings and test methods needed for you to successfully market your product – at home or abroad.


Systems integrators have to take numerous RF environments into account when preparing top level requirements that ultimately have to flow to subcontractors.  Legal, Inter-system, Intra-system and natural environments all must be considered before a meaningful specification can be produced.  We have experience working with systems integrators to generate clear and accurate specifications.  


Military and Aerospace subcontractors are sometimes faced with top level requirements that are often confusing or non-standard.  These requirements may lead to costly product redesign if not properly managed.   We can help flow top level specifications into solid requirements.  


  • FCC Compliance
  • CE Marking
  • MIL-STD-461
  • DO-160


Design – 


It’s important that EMI is taken into consideration at the very beginning of a products life cycle. Up-front EMI design saves overall product cost and reduces time to
market.  We can help by working with your electrical and mechanical design engineers to produce a compliant product with a rapid development cycle.  In some cases, moving an existing product into a new market changes requirements and ultimately can affect the EMI design.  Updates or changes to existing designs are often needed, even if the requirement changes appear benign.   We can help you understand the scope of the changes needed for new requirements and to help you work through all aspects of the design cycle.  We can also solve EMI problems in ‘real time’… when the product is undergoing test.   Southwest EMI has the experience to modify EMI designs on the fly, ultimately leading to compliant products while reducing cost impacts and without months in the lab.


  • Interface and power line filters 
  • Grounding, bonding and shielding
  • Chassis design
  • Circuit board layout
  • Transient suppression 



Analysis – 


EMI analysis is often needed to determine if a product can be compatible in a given environment or if it can meet legal or contractual requirements. We offer a number of analytical techniques to let you and your customers rest assured there will be no surprises when your product hits the lab.


  • SPICE Circuit modeling
  • Shielding analysis
  • Field to wire
  • RF system EMC (intermod, harmonics, spurious response/emissions)
  • Self Compatibility



Testing -


We will act as your company’s representative in the test lab, watching out for your best interests. Product EMI testing is where up-front design and analysis pays off.  However, a poor test can lead to false results, either introducing unneeded costs to mitigate false positives or to allow problems to go uncovered, exposing your company to possible contractual or
legal risk.   We have the experience needed to manage you product’s test accurately and efficiently.  


Test Labs range widely in capability, cost and experience.   Proper lab selection often balances cost versus risk.   We have worked with a number of labs in the past and have learned the lessons of what makes a lab right for a particular product line.   


  • Test Planning
  • Lab Selection
  • Lab Scheduling/Coordination
  • Witnessing
  • Test Reporting



Training -


Companies often do not have a dedicated EMI engineer on staff, and the responsibility for your product's EMI compliance often falls on engineers from a variety of disciplines.  We provide a customized in-house training program focused on your company's unique EMI requirements, design and test needs. We make it a point to work with your staff to design products that pass the first time - reducing lab costs, product risk and ultimately your time to market.


  • Custom Training Modules
  • 1/2 day to multi-day course options
  • In-house at your facility or at a local lab
  • Product specific EMI requirements, electrical and mechanical design, pretesting and final testing.
  • "Take Home" training material


Documentation -


The job is not complete until the paperwork is done!  Providing accurate and thorough documentation is critical to any product – whether it’s a computer system sold worldwide, a $200 Million satellite, or a complex communications system. 


Commercial:

  • Technical files
  • Test Reports
  • Declarations of Conformity 

 

Military/Aerospace:


  • Proposal Support
  • PDR/CDR packages
  • Control plans
  • Test Plans/Procedures
  • Reports


Customer Representation -


We will represent your company and product to your customers, in working groups, design reviews, EMCABs or other critical meetings.  We have the professionalism and confidence needed to take the job seriously and to provide your customer the assurance that their needs are being met. 


Test Facility Design and Support  - 


We have the background needed to help a client develop test facilities - from engineering a single test method to designing an entire lab.   We can work with building architects, test equipment suppliers and chamber vendors to create a solution that will meet your test facility needs in an effective and cost efficient manner.