Archive for the ‘Technology’ Category
Thursday, November 5th, 2009
High Frequency Integrated Vacuum Electronics (HiFIVE)
The objective of the HiFIVE program is to develop an integrated, microfabricated vacuum electronic (VE) high-power amplifier (HPA) circuit for use in high-bandwidth, high-power transmitters. Additionally, the program will demonstrate operation of such a circuit over a 5 GHz frequency band centered at 220GHz. The ...
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Wednesday, November 4th, 2009
India has the 2nd largest communication network in the world, having a tele-density of 28.33% and is one of the fastest growing wireless markets, with a total subscriber base of 325.78 million at the end of June 2008, adding 9 -10 million subscribers a month.
India is likely to leap-frog from ...
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Thursday, October 29th, 2009
Roke Manor Research Ltd (Roke) today launches the world’s first commercial generic high voltage test facility.
The new service can accommodate Radio Frequency (RF) power and voltage on a massive scale. It combines high voltage isolation with screening to 18 GHz, whereby most other facilities only allow for testing at 50 ...
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Thursday, October 22nd, 2009
In radio communications, a base station is a wireless communications station installed at a fixed location and used to communicate as part of a push-to-talk two-way radio system, or a wireless telephone system such as cellular CDMA or GSM cell site. In professional two-way radio systems, a base station is ...
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Monday, September 28th, 2009
What is World Standards Day?
World Standards Day began as a celebration of the birth of the International Organization for Standardization (ISO www.iso.org), which held its first meeting in London on October 14, 1946. From an initial roster of 25 countries, ISO (based in Geneva, Switzerland) now has 123 member nations ...
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Thursday, September 24th, 2009
Chroma's 63600 Series DC Electronic Loads are designed for testing multi-output AC/DC power supplies, DC/DC converters, chargers, batteries, adapters, and power electronic components. Excellent for research, development, production, and incoming inspection applications. The 63600's state of the art design uses DSP technology to simulate non-linear loads using an ...
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Wednesday, September 23rd, 2009
In Search of the Zero-Ohm Load
High-wattage resistors often are used as test loads for power transformers. Resistors don't introduce phase shifts, and it's easy to check that a transformer's voltage regulation remains within spec at different rms currents. The effect of various primary tap and secondary loading combinations also can ...
Posted in Applications, Product News, Technology | 1 Comment »
Friday, September 11th, 2009
Leading Smart Grid and Internet Connectivity Companies Join U-SNAP Alliance
Alliant Energy, CLECO, Comverge, GE Consumer & Industrial, Portland General Electric, Radio Thermostat Company of America, Sensus, Trilliant and eleven other companies join U-SNAP Alliance in smart grid home area network standard creation.
Morgan Hill, CA. (September 10, 2009) – The U-SNAP ...
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Thursday, August 27th, 2009
Question:
What are the main differences between a conventional Function Generator and an Arbitrary Waveform Generator (AWG)?
Answer:
A function generator has standard, predefined waveforms, i.e. sine, square, ramp and triangle. The user can manipulate these waveforms by adjusting basic controls such as the duty cycle, amplitude ...
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Wednesday, August 26th, 2009
Barring the occasional thunderstorm, most Americans take the electric current behind their power buttons for granted, and assume the juice will be there when they're ready to fire up an appliance or favorite tech toy. Little do most know, the strain on our electric grid—which has led to rolling brownouts ...
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