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Interference Technology

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Multi-Layer Ferrite Bead Chips Come in Compact Case for Portable Telecom Applications

 

The BKP0603 from TAIYO YUDEN U.S.A. is a 0.6 x 0.3 x 0.3-mm, multi-layer ferrite chip beads for reducing power circuit noise in cell phones and other portable battery-powered electronic equipment. This new series offers a 64 percent reduction of the device footprint as compared to the company’s earlier BKP1005 series. These devices utilize the latest advances in material … [Read more...]

Industry Analysts Foresee Market Shakeup as Bidding for Canada’s Spectrum Slows

 

Industry Analysts Foresee Market Shakeup as Bidding for Canada’s Spectrum Slows After six weeks of aggressive bidding that will bring over C$4.2 billion to Ottawa’s coffers, Industry Canada’s auction is on the verge of drawing to a close with only a handful of licenses in the far north still in contention. (As we prepared the eNews, round 221 of bidding was underway.) Telecom … [Read more...]

UK-Based Smiths Group Buys Australian RF Filter Products Firm

 

British engineering and electronics firms Smiths Group has bought Triasx Pty Ltd, a Brisbane-based wireless communications components manufacturer, from private owners for an undisclosed sum. The acquisition of Triasx expands Smiths’ Interconnects microwave business and adds the design and development of complex radio frequency filter products for the wireless communications … [Read more...]

German Study Finds No Evidence of Health Risk from Cell Phone Use

 

The Berlin-based Federal Office for Radiation Protection (Bundesamt für Strahlenschutz, or BfS) found no adverse effects associated with the use of mobile phones. German Environmental Minister Sigmar Gabriel, at left, announced that more than 50 studies carried out from 2002 to 2008 by the German Mobile Telecommunications Program had found no evidence that mobile phones or … [Read more...]

Third Generation of Filter Architecture Targets Telecom Applications

 

The third generation of the Praetorian LC filter architecture from California Micro Devices is based on an innovative coupled inductor design. The Praetorian III architecture utilizes a six-pole, pi filter topology and features high cutoff frequencies, high levels of attenuation, and robust ESD protection up to 15-kV contact discharge consistent with the IEC 61000-4-2 level 2 … [Read more...]

Clamp Device Provides Lightning Protection for Ethernet

 

The TClamp™ 3302N from Semtech, Inc. is a new ESD, cable discharge-, and lightning rated device for Ethernet systems. The 3302N is the latest addition to the TClamp™ product line. This new device provides telecom/datacom system designers a compact 3.3-V working voltage protection device rated for 100 A GR-1089 intra-building lightning surge. Utilizing the proprietary Enhanced … [Read more...]

Hong Kong Will Release More Spectrum

 

Hong Kong Will Release More SpectrumOfta, the telecom regulator for Hong Kong, has announced plans to sell off more radio spectrum to wireless telecom providers. Ofta will auction separate lots of 4.8 Hz in the 1800-MHz band. For the purposes of the sale, the spectrum will be divided into six blocks. Winning bidders will have the right to use the airwaves until 2021 when many … [Read more...]

Next Round in White Space Interference Controversy: FCC Testing

 

The Federal Communications Commission’s Office of Engineering and Technology (OET) has announced that as of July 14, 2008,it will begin field testing the performance of prototype White Space devices designed to operate in vacant spectrum between those bands used by digital television broadcasters. These tests are part of the FCC process of rulemaking and will help determine … [Read more...]

Rebanding to Protect Public Service Radio from Interference Stalled Again

 

The Federal Communications Commission (FCC) has issued an Order granting additional waivers to public safety licensees to move their broadcasts to different frequencies and thus eliminate the interference that has plagued First Responder radio signals. The original deadline had been June 26, 2008, but some waivers were granted on June 17. In this Order, those agencies that … [Read more...]

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