By Brian Farmer Introduction As we ride on the cusp of a new age of electronic warfare, management and use of the electromagnetic spectrum are becoming increasingly important. In fact, the Department of Defense (DoD) has deemed the electromagnetic spectrum a critical resource and has established DoD Instruction 4650.01, which defines policy and procedures for … [Read more...]
On-site EMF Testing of an Emergency Network Communications Vehicle
Thorough testing requires taking measurements both inside and outside the vehicle. David A. Case, Jaime McLain and Murry Gavin Cisco Systems, Inc., Richland, Ohio, USA Experienced compliance test personnel are familiar with the usual spate of RF issues. Tasks range from performing MPE (maximum permissible exposure) studies and SAR (specific absorption rate) testing to … [Read more...]
New EMC Directive: 2004/1081 EC
Manufacturers should familiarize themselves with the additional requirements and the alterations found in the new EMC directive Manjula Bhati Electronics Regional Test Laboratory (West), Indian Ministry of Information Technology, Mumbai, India The current EMC directive 89/336/EEC, which was first published in 1989 and then succeeded by four amendments has been rewritten as … [Read more...]
Voltage Sag Testing for Commercial and Industrial Equipment
The ultimate goal for any product manufacturer is to make its product immune to voltage sags. Andreas Eberhard, Power Standards Lab Alameda, CA Modern equipment can be sensitive to brief disturbances on the AC power mains. Unfortunately, electrical systems are subject to a wide variety of power quality problems that can result in interruption of the production process, damage … [Read more...]
Cost Considerations for Selecting RF Shielding Materials
Taking these factors into account can save time and money. Gary Fenical, Laird Technologies Delaware Water Gap, PA RF shielding materials are an important consideration when designing electronic components because these materials help ensure that the electronic device will perform to its optimum functionality. Considering RF shielding materials at the beginning of the … [Read more...]
