Microwaves & RF UPDATE
MWRF - www.mwrf.com
October 21, 2005

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Today's Table of Contents:
1. Bringing UWB To The Masses
2. Digital Fountain Licenses FEC Technology To Nokia 
3. ARRL Asks FCC To Shut Down Manassas BPL System 
4. Keithley Expands Presence in Southeast Asia 
5. FOCUS Enhancements Launches UWB Evaluation System 
6. Holley Communications Selects ADI for 3G TD-SCDMA Phone 
7. Aeroflex/Metelics Delivers Diode Catalog 
8. Happenings - Conferences 

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1.  Viewpoint 
Bringing UWB To The Masses

Ultrawideband (UWB) technology is yet another military 
communications technique that is working its way to commercial 
applications. Based on time-sequenced pulsed signals at low power 
levels, UWB promises to provide many times the bandwidth of even the 
highest-frequency wireless local area networks (WLANs) over similar 
distances. For that reason, some companies have eyed the technology 
as a viable candidate for wireless home networking involving video 

One of these video-UWB pioneers is FOCUS Enhancements (Campbell, 
CA). And the company has done more than just tout its radio 
solutions. It has assembled a full evaluation kit (see the story 
below) to help commercial and consumer-electronics designers to test 
their UWB radios in typical home and office environments. As Brett 
Moyer, the firm's President and CEO relates, FOCUS wants 
manufacturers to test and confirm that their UWB radios work in a 
wide range of environments. The evaluation kit is a boon to 
companies considering UWB for their products and a tremendous push 
for this fledgling technology.
Technical Director

2. News
Digital Fountain Licenses FEC Technology To Nokia

Digital Fountain (Fremont, CA) has licensed its patented DF Raptor 
forward-error-correction (FEC) technology to Nokia for the 
cell-phone maker's next-generation cellular handsets. The DF Raptor 
technology supports efficient delivery of multimedia data streams or 
large data files over wireless networks even with the occurrence of 
high packet loss. The technology minimizes processing requirements 
and transmission bandwidth while providing tremendous flexibility in 
the face of lost packets. A version of DF Raptor was recently 
selected by the Third Generation Partnership Project (3GPP) for 3G 
high-speed wireless networks, and is part of the first release of 
the Multimedia Broadcast Multicast Service (MBMS) standards. 
Digital Fountain ---> http://news.mwrf.com/t?ctl=172C9:49027F

3. News
ARRL Asks FCC To Shut Down Manassas BPL System

Last issue, it was reported that Manassas, VA had gone to a 
full-scale broadband over powerline (BPL) communications system for 
high-speed internet access over power lines. In response to the 
full-scale deployment of the system, and the effects of its 
interference on other radio systems, the Amateur Radio Relay League 
(ARRL) has asked the Federal Communications Commission (FCC) to 
instruct the city to shut down the system. Communications 
Technologies (COMTek) operates the system for the city over the 
municipally owned electric power grid. ARRL cites the system as a 
source of harmful interference for amateur radio operators and "is 
not compliant with applicable FCC Part 15 regulations" according to 
the ARRL's 16-page filing with the FCC. A copy of the ARRL's filing 
with the FCC is available on the ARRL web site at 
ARRL ---> http://news.mwrf.com/t?ctl=172D6:49027F
COMTek ---> http://news.mwrf.com/t?ctl=172C8:49027F
FCC ---> http://news.mwrf.com/t?ctl=172D9:49027F

4. News
Keithley Expands Presence in Southeast Asia

Test and measurement specialist Keithley Instruments has announced 
significant expansions in Southeast Asia with an office expansionin 
Singapore and the opening of two new offices in Malaysia for direct 
sales and support of its electrical test and measurement solutions. 
Of the expansion, the company's Chairman, President, and CEO, Joseph 
Keithley noted "It will allow us to provide our customers in these 
emerging markets with even faster, more effective sales applications 
assistance." More than 50 percent of the firm's sales come from 
outside the United States. The company maintains branch sales 
offices in 15 countries and also has sales representatives in more 
than 76 countries around the world.
Keithley Instruments ---> http://news.mwrf.com/t?ctl=172CF:49027F

5. News
FOCUS Enhancements Launches UWB Evaluation System

Video specialist FOCUS Enhancements (Campbell, CA) has introduced 
the Talaria Ultrawideband (UWB) Evaluation System for computer, 
mobile communications and consumer electronics companies designing 
next generation UWB-based wireless audio/video products. The system 
includes all elements needed to test UWB radio performance in 
typical home and office user environments, and can be used to 
validate the performance of FOCUS Enhancements' UWB radio modules in 
real-world environments. Talaria is expected to provide transmission 
rates to 880 Mb/s at ranges to 8 m and 37 Mb/s at a range of 40 m. 
"For UWB to become a viable technology in commercial markets, it 
must prove that it can work in a variety of commonly encountered 
environments," said Brett Moyer, FOCUS Enhancements' president and 
chief executive officer. The evaluation system contains two PCI 
slots, which house a mini-PCI Talaria UWB radio module and a FOCUS 
Enhancements Gemini MPEG decoder card. It provides IEEE-1394, 
component video, composite video, VGA and DVI video outputs and 
S/PDIF digital audio outputs.
FOCUS Enhancements ---> http://news.mwrf.com/t?ctl=172C7:49027F

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6. News
Holley Communications Selects ADI for 3G TD-SCDMA Phone

Analog Devices (Norwood, MA) has announced that it will supply 
third-generation (3G) cellular chipsets to Holley Communications 
(Hangzhou, China) for handsets based on the emerging TD-SCDMA 
low-chip-rate (LCR) air interface. Holley will use the SoftFone(R)-LCR 
chipset, which provides all the critical functions necessary to build 
a TD-SCDMA handset, including the baseband signal processing and control, 
analog-interface functions and radio as well as Datang Mobile's TD-SCDMA 
software solution and applications suite. 
Analog Devices ---> http://news.mwrf.com/t?ctl=172D1:49027F
Datang Mobile ---> http://news.mwrf.com/t?ctl=172CB:49027F
Holley Communications ---> http://news.mwrf.com/t?ctl=172CC:49027F

7. News
Aeroflex/Metelics Delivers Diode Catalog

Designers in need of a high-frequency diode will more than likely 
find it in the new 48-page catalog from Aeroflex/Metelics 
(Sunnyvale, CA). The firm is a long-time supplier of microwave 
diodes for the aerospace, defense and wireless industries. The 
short-form catalog provides extensive performance specifications for 
a wide range of diodes, including PIN, Schottky, step recovery, 
tunnel, and varactor types. The catalog also offers information on 
MIS and MOS capacitors. It includes several pages of outline 
drawings covering the many package options available for these 
high-performance devices. The 48-page catalog is available for free 
download from the company's web site at http://news.mwrf.com/t?ctl=172CD:49027F
Aeroflex/Metelics ---> http://news.mwrf.com/t?ctl=172D0:49027F

8.  Happenings - Conferences

42nd Annual Association of Old Crows (AOC)
October 23-26, 2005
Virginia Beach, VA 

IEEE Compound Semiconductor IC Symposium (formerly the GaAs IC Symposium)
October 30 - November 2, 2005
Palm Springs, CA

ARMMS RF & Microwave Conference
November 7-8, 2005
Harben House Hotel, Newport Pagnell, England

Wireless Congress 2005: Systems and Applications
November 9-10, 2005
Munich, Germany

Automatic RF Techniques Group (ARFTG)
66th Microwave Measurements Conference
December 1-2, 2005
Marriot Hotel, Washington, DC

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               companies and products, visit:


Read past issues of Microwaves and RF (MWRF) UPDATE e-Newsletter: 

Technical Director: Jack Browne
Associate Editor: Laurie Collins

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