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11 Sep 06. High-power amplifiers developed by CPI International, Inc. were recently utilized in a successful demonstration of Raytheon Company’s newly-designed Dual-Mode, All-Band, Relocatable Communications Transport Terminal (DART-T) at Fort Huachuca in Sierra Vista, Ariz. for key personnel from the U.S. Army and Marine Corps. The DART-T is a highly transportable, self-contained communications terminal that includes custom Ku-band traveling wave tube amplifiers developed by CPI International (CPI) and is configurable for operation in satellite and troposcatter (TROPO) communications. CPI is the parent company of Communications & Power Industries, Inc., a leading provider of microwave, radio frequency, power and control solutions for critical defense, communications, medical, scientific and other applications.
Sep 06. Pulse Electronics announce the introduction of their “Cheetah” range of military grade compact (40 x 70 x 20mm) modules incorporating complete power systems inclusive of filters, alarms and controls and delivering up to 100Watts output. Operating from a 28Volt DC nominal Input voltage and incorporating configurable DC/DC conversion they offer a range of single or multiple output voltage options in the range 5V to 48V. Optimum flexibility is afforded by utilising power converters incorporating leading edge low-profile planar magnetic technology provisioned within multi-layered PCB structures, and used as configurable modular custom redundant power blocks. Benefits of this technology result in lower magnetic EMI profiles, significant improvements in sustaining operation through high shock/vibration profiles and reduced overall volume requirements – effectively allowing a higher “electronic content” than more conventional solutions. The high efficiency concept (demonstrably up to 90% and above) incorporates transient ride through, input current limit active circuitry, lightning suppression and multi Alarm Bite monitors. Also standard is “Automatic Power Sharing” converters with defined voltage output characteristic without a Single Point of Failure system share line – providing integrated Primary and Secondary Current Limit and removing problems associated with Dormancy. Operating over a temperature range of –40C to +100C (with suitable cooling/heat-sinking arrangement), environmental performance to MIL-STD-810E and achievable EMC to MIL-STD-461E, combined with a minimal weight of less than 100 grams assures suitability within commercial and military aerospace applications. Full data and specifications are available upon request from Pulse Electronics who are available to work with customers to ensure specific application; system integration and budget requirements are met.
13 Sep 06. Some dueling disk-drive makers are claiming new records for storing data, extending a technology that is celebrating its 50th anniversary in Silicon Valley this week. A unit of Hitachi Ltd. plans to announce today that its researchers have demonstrated the ability to store 345 gigabits — or billions of bits — of data per square inch on a disk. That compares with a maximum of 133 gigabits a square inch in disk drives now on the market. Not to be outdone, rival Seagate Technology of Scotts Valley, Calif., plans to disclose research results with storage capacities of 421 gigabits of data per inch. It can take years for new techniques for magnetically encoding bits of data to be incorporated into disk drives. Hitachi, based in Tokyo, said last year that it was able to achieve 230 gigabits per square inch in the laboratory, for example, and isn’t offering that capability in its products. By 2009, however, Hitachi predicts that its 345-gigabit technology could dramatically increase the capacity of today’s disk drives. A 3.5-inch drive for desktop computers, for example, is expected to store two terabytes, or trillions of bytes, of data — about 2½ ti