EMConsulting
Electromagnetic Compatibility Consulting Engineering Services
Helping you to prevent or eliminate electrical noise and interference in your electronic, electrical, and electromechanical equipment and systems.
Military, Aerospace, Industrial, or Telecom - EMConsulting solves your interference problems.
Test Labs
Washington Labs
Gaithersburg, MD - Our EMI/EMC, safety, and environmental compliance testing process - from design help to test plan to product review, test suite to full report - all ensure that your compliance needs will be met. Whether it's CE marking, MIL-STD testing, wireless approvals, emissions or immunity - whatever your testing needs - we have the expertise and facilities to help you get your products to market fast. CE marking, FCC certifications, UL or NRTL approvals, environmental testing - all available from your EMC, product safety and environmental compliance source - Washington Labs.
MET Labs
Baltimore, MD - MET Laboratories is a leading testing and certification laboratory, providing true one stop testing, and on-line, real time tracking of a project's progress. MET Laboratories' unique array of testing services and accreditations for regulatory testing to EMC, environmental simulation, telecom, wireless, and product safety requirements provide the complete package needed in today's world market.
Engineering Reference
Aircraft Connector Bonding Resistance Tests and Materials Analysis
This paper by John A. Ziegenhagen, James C. Hierholzer, and Edward L. White discusses aircraft electrical connector bonding resistance tests conducted by the Electronics Failure Analysis Laboratory, Materials Integrity Branch, Air Force Research Laboratory (AFRL/MLSA) at Wright-Patterson Air Force Base, Dayton, Ohio. The electrical bonding resistance between a MIL-C-38999 cadmium and nickel-plated aluminum connector and mating surface has be found to increase over time. Indications suggest the growth of an oxide film on the faying surfaces being responsible for the increase in resistance. The initial evaluation attempted to determine the causes of the phenomenon by conducting connector bonding resistance tests and materials analyses using conventional cadmium-plated connectors. Subsequent evaluations were peformed using connectors with different finish and base material combinations.
RF Cafe
RF Cafe is a unique portal of RF, microwave, wireless, and other engineering resources. Vast collection of equations, references and conversions for electrical, mechanical, physical, and mathematical fields. Links for vendors, app notes, test notes, ham radio, magazines, books, active forums, patent and communications standards, technical crossword puzzles, quizzes, and much more.
si-list data repository
si-list is a technically oriented mailing list dedicated to the discussion and interchange of information on all topics related to signal integrity. This is a link to the archives of the mailing list. Also included are links to related sites, technical papers, and downloadable software.
Test Equipment
Transient Specialists
Transient Specialists, Inc. is your single source provider for renting EMI/EMC compliance testers for IEC, EN, Telecom and UL Standards as well as military and avionics standards, like MIL STD 461 and DO 160. They also supply industry-specific EMI test equipment such as automotive test sets for standards SAE J1113 and ISO 7637 and many others.
Parts and Materials Suppliers/Manufacturers
Panashield
Panashield provides facility solutions for global electromagnetic compatibility (EMC), by creating controlled electromagnetic environments necessary for testing electronic devices in today's world. We have installed thousands of shielded rooms and anechoic chambers around the world. We are able to build facilities that meet your requirements, and give you the benefit of our exclusive technology.
LumenFlow
LumenFlow offers superior solutions to your photonics challenges. Whether you are looking for engineering assistance or a completely designed and manufactured solution or anything in between, LumenFlow can fulfill your needs.
Integral Marketing
With over 65 years of combined experience in representing high technology companies, Integral Marketing specializes in serving the DOD, non-DOD, government, prime and sub contractors as well as the commercial sector in the Mid-Atlantic area. The high technology companies we represent specialize in instrumentation and related products in the areas of acquisition and storage, telemetry, precise time and frequency, electronic packaging, and systems integrations components. Integral Marketing represents Equipto, a manufacturer of high performance shielded racks and enclosures.
Fun or Interesting
Jim Hawkins Radio and Broadcast Technology Page
Take a walk down memory lane with great photos and recollections of radio's past. Jim Hawkin's site has great graphics and interesting, first-hand tours of broadcast facilities and lots of photos.
On the evening of March 8, 2011, the Shuttle Discovery (mission STS-133) and the International Space Station made their last visible pass over the Mid-Atlantic region of the United States. I wrote this page to provide viewing tips for this event.
