669 results found for Louis E. Frenzel, displaying items 1 - 20
August 13, 2008
[Web Exclusive] NIWeek Wrap Up
One of the best conferences I go to each year is NIWeek. Another has come and gone, but like always I got a glimpse at some solid technology from the mega-company. National Instruments has been sponsoring their own conference here in Austin, TX for several years now, and it has become a solid industry event. Why? Simply because NI’s products like LabVIEW software, data acquisition hardware, and virtual instruments have become so widely used.
August 12, 2008
[Web Exclusive] Is It Worth Waiting For The Next Generation iPhone?
The media is simply overflowing with articles on Apple’s iPhone 2.0 which came out last month. (June 9). I have already had the feeling that I was the only writer/editor/blogger/pundit who had NOT written about this device. So, here is my two cents worth. But to liven this up, I will tell you what I think will be the new and better features of the third version of the iPhone, not the newest one, but the (hypothetical) one just beyond.
August 14, 2008[Design FAQs] Automated Test Summit 2008
What is the Automated Test Summit? The Automated Test Summit is an annual virtual industry event for test and design engineers hosted by National Instruments. It includes a virtual trade show floor with exhibits, interactive Q&A, live keynotes, and several live technical tracks. You can experience all of these events just as you would if you were attending the conference yourself, but from the convenience of your desk...
August 14, 2008[Leapfrog: First Look] Big, Black, And Bold Oscilloscope Breaks Performance Barriers
The WavePro 7 Zi series from LeCroy revolutionizes oscilloscope design and functionality (Fig. 1). While the 15.3-in. WXGA LCD touchscreen can display all sorts of useful data at the same time, the real breakthrough is what’s inside, as its hardware and software make it one of the best scopes on the market. The series includes five basic models with maximum bandwidths of 1.5, 2.5, 3.5, 4, and 6...
August 14, 2008[TechView: Test] Updated Signal-Generation Software Uses Click-And-Drag GUI
Keithley Instruments has launched the 2.0 version of its SignalMeister Waveform Creation Software. Introduced last year, the original version of the software tool lets engineers create highly complex signals needed to test modern RF and wireless products. With SignalMeister, designers can create waveforms for multiple signal standards and add signal impairments and channel modeling. The created waveforms are downloaded to Keithley’s 2900 series RF...
August 14, 2008[Engineering Feature] Good Times For Ham Radio
I recently spoke with David Sumner (K1ZZ), the CEO of the Amateur Radio Relay League (ARRL), at the Dayton Hamvention, the big ham conference held every year in Dayton, Ohio. If you’re a ham, you know about the ARRL, which supports and promotes amateur radio. The organization is the ham’s interface with the Federal Communications Commission (FCC), and it lobbies for spectrum and other rights and benefits. It publishes the monthly ...
August 14, 2008[Engineering Feature] SDR Transforms Amateur Radio
Like almost everything else in electronics, radios are becoming processors with software that communicate via a small amount of RF I/O circuitry. Surely, then, the rise of software-defined radio (SDR) should come as no surprise. Digital signal processing (DSP) lies at the heart of SDR. Add to that the arrival of faster analog-to-digital and digital-to-analog converters (ADCs and DACs) and processors, and SDR becomes more viable for a wider range of...
August 14, 2008[Engineering Essentials] Welcome To Antennas 101
Antennas are much more than simple devices connected to every radio. They’re the transducers that convert the voltage from a transmitter into a radio signal. And they pick radio signals out of the air and convert them into a voltage for recovery in a receiver. Typically taken for granted and left for the last minute in a design, antennas are nonetheless critical for establishing and maintaining a reliable radio connection. They may look complex and enigmatic...
August 11, 2008
[TechView: Wireless] Wireless Gateway Makes Building A Point-To-Point Multipoint ZigBee Network Easy
The Digi International ConnectPort X is a ready-made gateway designed to speed the implementation of 802.15.4 or ZigBee wireless networks. It lets modular wireless nodes connect to the Internet via cellular, Wi-Fi, and Ethernet IP services to provide remote monitoring and control.
August 4, 2008
[NI Week] Get Ready For NIWeek
NI Week 2008 is here. Starting on Tuesday, August 5, more than 3,000 engineers, scientists, educators, and NI developers will convene at the Austin Convention Center in Austin, Texas for three full days of interactive technical sessions, hands-on workshops, case study presentations, and exhibitions on the latest technologies for design, control, and test applications. Hosted by National Instruments, this show is both intellectually stimulating and a lot of fun.
July 25, 2008
[TechView: Test] Handheld Real-Time Spectrum Analyzers Nail Interfering Wireless Signals Fast
Complex wireless technologies make measurement a real challenge with their short bursts and non-deterministic timing. Furthermore, identifying and locating interfering RF emitters that are misusing the radio spectrum has become more of a challenge. Yet Tektronix’s SA2600 and H600 Hawk Real-Time Spectrum Analyzers can meet both of these measurement challenges.
July 25, 2008
[TechView: Test] Software Options Make Good Spectrum Analyzers Even Better
New options are available for Anritsu’s popular MS271xB economy microwave spectrum analyzers. The three available models have upper frequency limits of 7.1, 13, and 20 GHz. They also have a 10-MHz demodulation bandwidth and support the most common 3G cell-phone and WiMAX standards.
July 24, 2008[TechView: Communications] Cut Cost, Power While Delivering 10-Gbit/s Ethernet Over 30 m Of Copper
Designers can deliver up to 10 Gbits/s of Ethernet over 30 m of copper cable thanks to a pair of developments from Phyworks Ltd. The 24 AWG twin-ax cable is terminated in SFP+ connector assemblies that employ the company’s PHY2060 active equalizer, CDR, and retimer IC (see the figure). The PHY2060 was originally developed for optical-fiber applications, but it adapts well to the copper...
July 24, 2008[TechView: Communications] Powerline Modem Uses OFDM To Overpower Noise And Transmit Data Reliably
Powerline communications (PLC) has been available for many years, but it hasn’t always lived up to its expectations. Electrical utilities regularly use the technology to monitor and control ac power lines. Some companies have even tried offering broadband Internet services. But the high-speed limitations of the ac lines as well as noise and interference issues have impeded its progress. Still, designers can use PLC for monitoring and control...
July 24, 2008[TechView: Communications] Five-Port Ethernet Switch Targets Cost-Sensitive Low-Port Apps
The KSZ8995FQ five-port Ethernet switch from Micrel targets applications with low port counts like industrial Ethernet, managed media converters, and fiber to the premises (FTTP) customer premise equipment (CPE) where low bill of materials (BOM) costs are essential. It includes five full 10/100-Mbit/s transceivers, five media access control (MAC) units, a high-speed non-blocking switch fabric, a dedicated address lookup engine, and an on-chip...
July 9, 2008
[TechView: Communications] Optical Interface For HD video In Home Entertainment Systems Makes Sense
The Omron Electronic Components SX51 fiber-optic cable assembly includes a transmitter and receiver module on each end of the cable, making it bidirectional. It’s designed to address the data-transfer challenges inherent in the uncompressed bandwidth-intensive applications associated with HDMI rev. 1.3-compliant HD video and HDCP Video extender markets.
July 7, 2008
[ED Bookstore] Broadband Wireless Access And Local Networks: Mobile WiMAX and Wi-Fi Broadband Wireless Access And Local Networks: Mobile WiMAX and Wi-Fi is a brand new book published by Artech House. A long time publisher of wireless and related books, Artech is doing a great job of finding authors with the latest knowledge on wireless topics, and quickly getting books into the hands of those who need them. Overall, this book is a recommended reference book if you are working with these standards.
July 7, 2008
[ED Bookstore] Antenna Engineering Handbook, 4th Edition
I will be straight with you and say I have no idea how to write a review of a book like this. It does indeed fit the definition of the word “tome,” but I mean that in the best possible way. If you are looking for a master reference on antennas, this is certainly a great one. You will not be disappointed.
June 26, 2008[Engineering Essentials] DDS Basics
Most newer signal generators, such as arbitrary waveform generators (AWGs), lower-frequency RF generators, and vector signal generators (VSGs), use direct digital synthesis (DDS) instead of fractional-N phase-locked-loop (PLL) synthesizers, which are common in older instruments and higher-frequency RF generators. Though not new, DDS has improved significantly over the past few years thanks to the arrival of faster, single-chip DDS synthesizer chips like those from Analog...
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