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Articles and Technical Papers

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FHSS frequency hopping spread spectrum graphic link
Typical Frequency
   Hopping Pattern  
The following magazine articles and technical papers are unedited versions. The published versions were edited by the publishers for space considerations. Hard copies of most of these published articles and papers are available upon request from Data-Linc Group. Contact us at (425) 882-2206 Pacific Coast Time, fax (425) 867-0865 or .
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FSK frequency shift key graphic link
 FSK Schematic
(Frequency Shift Key)


bullet: Tech Tips-Add wireless metrics to HMI A-B Journal, August 2006, pg 51-53
"Wireless Automation Rocks!"
A retrofitted wireless automation system makes aggregate production more efficient and improves process monitoring.
bullet: Tech Tips-Add wireless metrics to HMI A-B Journal, November 2005, pg18-20.
"Tech Tips: Add Wireless Metrics to HMI," Larry Terwisscha, Customer Relations/Tech Support.
Read the complete article entitled "Adding Wireless Metrics to your HMI" which gives the "how-to" regarding integration of application and wireless data into a single-user interface.
bullet: Tech Tips-Add wireless metrics to HMI A-B Journal, September 2005, pg 37
Success is in the Subsystems:
"Ethernet Wireless Modems Aid Truck Assembly
" Renee Robbins, Executive Editor
(2 MB A-B Journal article, page 37 pdf download) Read the unedited version
bullet: Article-Applying wireless to Ethernet/IP industrial networks Applying Wireless to Ethernet/IP Industrial Networks
(January 2005 unpublished paper)
bullet: Article-Oil and Gas Pipeline monitoring and control Data-Linc Conquers Brazil's Rugged Terrain and Reduces Costs for Large Oil and Gas Pipeline Network
Data-Linc and A-B Tech provide a viable solution to monitor the integrity of a vast pipeline network from one central location. (August 2004, unpublished paper)
bullet: Article-Wireless video applications in industrial environments Wireless video applications in industrial environments
Combining wireless and video to create a network requires careful consideration of capabilities and limitations. (August 2003, unpublished paper)
bullet: Article-Expanding existing SCADA system U.S. Water News Vol. 20, No. 6, (June 2003) pages 6,12.
"Expanding existing SCADA system for growth can be daunting task"
Case study presented at the Texas Water Association conference in Corpus Christi TX, April 2003.
bullet ISA's Intech Magazine, July 2002.
Taking Back Control: Most common way to implement a SCADA system is to go outside, but is it the best way?
Read an excerpt of how Camrosa Water District saved $24K per year, or download the complete article (pdf file 120 K).
bullet: Article-Traffic control City of Bellevue Case Study Traffic Control: City of Bellevue Case Study (unpublished paper)
bullet: Article-Wireless Sign Control: Engineering article Control Engineering, (Mid-December 2000).
"Wireless Scores With Sign Maker: Washington-based companies make wireless technology a team effort".
bullet A-B Journal, June 2000. (on Allen-Bradley website)
"Victor Valley Dives into Data Acquisition"Contact Data-Linc at 425-882-2206 for print article.
bullet: Article-Extend Your Plant Network with Industrial Wireless Ethernet I&CS, (September 1999) pages 91-95.
"Extend Your Plant Network with Industrial Wireless Ethernet".
bullet: Article-The Only Wireless Ethernet Modem Designed for Industrial Environments Industrial Computing Magazine, (April 1999).
"License Free Ethernet Radio Modems: The Only Wireless Ethernet Modem Designed for Industrial Environments"
bullet: Article-Repairing the Weak Link in Data Acquisition link A-B Journal, (September 1997) page 66-67.
"Repairing the Weak Link in Data Acquisition and Control."
bullet: Article-Selecting a Radio Modem Technology for Industrial Automation Applications: 5 Case Studies I&CS, (July, 1997) pages 69-72.
"Selecting a Radio Modem Technology for Industrial Automation Applications: 5 Case Studies."
bullet A-B Journal, (June 1997) page 34.
"Data-Linc Group: Its Niche and Latest Development."
bullet WATER/Engineering & Management, (July 1996) pages 22-25.
New Techniques Provide Solutions to Data Communications Dilemmas in Water Districts."
bullet Control Engineering, (March 1996) pages 75-76.
"How to Improve Industrial Data Communication."
bullet Industrial Computing, (July 1995) pages 14-19.
Avoiding Data Communications Problems.

Technical Papers

bullet: Article-Water Waste/water SCADA System upgrade Updated unpublished articles
(April 2008)

Modernization Without Compromise: Wastewater SCADA System Upgrade, Sussex County, Delaware,
(download 1MB pdf file); Original article regarding installation presented at ISA 2004 and published in
Intech (Feb 2004).

bullet: Article-Water Waste/water SCADA System upgrade Sydney Water West Camden Recycled Water Supply Project
by Asghar Khan, Wired & Wireless Solutions International, Richard Camilleri, Sydney Water, Larry Terwisscha, Data-Linc Group
(download 1.8MB pdf file)

bullet: Article-Water Waste/water SCADA System upgrade Paper presented at Automation Fair 2006 (October)
by Larry Terwisscha, Training & Technical Services Manager
Designing the Ultimate RTU— Communiucation Options
(download 543K pdf file)

bullet: Article-Water Waste/water SCADA System upgrade Discrete/Analog Multiplexer 2005 (March)
"Wireless Communication System for Stray Current Interference Testing"
by Janani Suseelar, BE (Electrical, UNSW), Sydney Water Commission
Gil Dent, Asset Management Specialist, Sydney Water Commission
(download 371K pdf file)
bullet Secure Data Transfer (December 2001).
Data-Linc Group SRM Series Wireless Security: Understanding Wireless Modem Data Transmission
bullet ISA Paper (October 1998).
Applying Safety Systems in Certified Environments Utilizing Remote I/O and Communications.
bullet IEEE Paper (August 1996).
License Free Spread Spectrum and FSK Wire Industrial Data Communications.
bullet ISA Paper (February 1995).
The FSK Advantage: New Techniques Support Enhanced Data Acquisition and Control.
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