As wireless networking technology continues to expand and shrink the supply of available electromagnetic spectrum, researchers are working to develop solutions to locate and develop alternate solutions for data transfer. Harald Hass, a researcher at the University of Edinburgh in the United Kingdom, is currently working to enable wireless devices to utilize the spectrum of … [Read more...]
FCC to Exceed Goal of Freeing 300 MHz for Mobile Wireless Broadband by 2015
A Federal Communications Commission official has reported to Congress that the agency will exceed its goal of freeing up 300 MHz of spectrum for mobile wireless broadband by 2015. Ron Repasi, deputy chief of the FCC’s Office of Engineering and Technology, discussed the FCC’s progress at a recent hearing on "The Role of Receivers in a Spectrum-Scarce World." According to … [Read more...]
Evolution of Wireless Technology May Affect GNSS Over-the-Air Testing
The evolution of wireless communications technology, in combination with the incorporation of GNSS positioning into mobile devices and the increasingly crowded frequency spectrum, is increasing reliance on over-the-air testing and forcing the creation of new specifications, standards and testing procedures for electronic devices. Consumer electronics continue to strive for … [Read more...]
UK 4G Mobile Network to Debut Despite Interference With Television Signals
The United Kingdom has begun the process of implementing the new “Everything Everywhere” nationwide 4G network despite concerns about its interference with digital TV provider Freeview. The new 4G mobile services will occupy the 800 MHz spectrum band alongside the 700MHz spectrum band occupied by Freeview. Experts theorize that approximately 2.3 million homes are expected to … [Read more...]
Distributed Amplifier for Test Instrumentation, Military and Space Applications
Custom MMIC, a developer of performance-driven monolithic microwave integrated circuits, has released the CMD173, a wideband GaAs MMIC distributed amplifier die for applications from DC to 20 GHz. According to the company, the CMD173 is ideal for microwave radio and VSAT, military and space applications, telecom infrastructure and test instrumentation. The CMD173 incorporates … [Read more...]
Signal Generator for Testing of Narrowband Analog Radio Equipment
Anritsu, a manufacturer of radio frequency, microwave, optical, wired and wireless solutions, has released the MG3740A analog signal generator for evaluation of narrowband analog radio equipment used in public safety networks and private commercial networks. The analog signal generator is an “excellent -140 dBc/Hz SSB phase noise [that] optimizes the test signals outputted … [Read more...]
New Wireless Technology Developed to Increase 3G and 4G Network Efficiency
In an effort to resolve the ongoing available spectrum issue, researchers at the University of California at Riverside have developed a way to double the efficiency of wireless networks. The researchers theorized that the use of modified full-duplex radios, which transmit signals at the same time in the same frequency band, could double the efficiency of the spectrum. Current … [Read more...]
FCC Examines Development of “Geo-Targeting” Broadcasting System
The Federal Communications Commission is scrutinizing a new broadcasting system that will give FM radio stations the ability to divide their coverage areas into geographic zones and “geo-target” their advertising and programming. According to developer Geo-Bradcast Solutions, the ZoneCasting system uses GPS and mobile broadband technologies to divide the FM signal but avoid … [Read more...]
Lightning Arrestors for Protection of High Power RF Transmission Lines
EMI/EMC solutions supplier NexTek has announced a new series of lightning arrestors for protecting high-power radio frequency (RF) transmission lines, including the HF, VHF and UHF frequency ranges from 0(dc) to 1000MHz. The K1 series offers protection for high-power RF transmission lines of up to 50,000 Watts while the T1 series has a transient rating up to 100,000 … [Read more...]
TVS Diode Arrays for High-Speed Data Line Protection
Circuit protection provider Littelfuse, Inc., has announced a new series of TVS diode arrays for protecting telecommunication interfaces. According to the company, each SR70 Series TVS diode array “is built from four low capacitance, rail-to-rail diodes to provide excellent protection against electrostatic discharge (ESD) and lightning-induced surge damage.” Chad Marak, … [Read more...]
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