Wireless Systems Information Wireless systems consist of combined RF components such as transmitters, receivers, transceivers, filters, down / up converters, antennas, and antenna positioners. Wireless systems use low-powered radio waves to communicate data between these devices without the use of cables. Uses Wireless systems are widely used in computer networking and communication applications. Wireless systems used in computer networking typically include a wireless router or access point...
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Q & A on Wireless Systems

We asked our users for their input on Wireless Systems. Here are the results of 110 users familiar with Wireless Systems.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice |

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing wireless system design?
16 answers
Answers:
ZigBee (Industrial & Building Automation), Bluetooth Low Energy (Healthcare), NFC (Mobile Marketing), Energy Harvesting (Low Power Applications), and M2M Mobile SoC (GPRS, GSM, 3G, UMTS).
~Luis Diego D, Research & Development, Doral, FL
I believe that the trend toward using TVs as Internet devices is a big influence on wireless systems.
~Sarah McGraw, Project Manager, Owens Cross Roads, AL
In my domain of work, CDMA technology in wireless sensor network.
~Uma Datta, Research & Development, Durgapur, India
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Q:
From your perspective, which companies are creating the most innovative wireless systems?
18 answers
Answers:
Synapse Wireless, Digi, Texas Instruments, NXP, STMicroelectronics, Panasonic, Telit.
~Luis Diego D, Research & Development, Doral, FL
Like Ruckus, but I think the better is coming...Watch out for Ericsson or Blue Wan.
~Juan B., Engineering Consultant, Madrid, Spain
Netgear and Cisco are creating the most innovative wireless systems.
~Sarah McGraw, Project Manager, Owens Cross Roads, AL
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Applications and UseTop

Q:
Please share with us any “non-standard” applications that wireless systems have been used for.
9 answers
Answers:
Control data for synchron movement separate segments of portal cranes, within millimeters. Control data for heavy machines for positioning in cokes oven production.
~Fred W, Design Engineer, Weesp, The Netherlands
For people you are deaf in one ear - sounds that are produced near the deaf ear are transmitted via bluetooth into the good ear.
~John M, Market Analyst (Industrial Automation), Wellingborough, England
There are three areas, e-health, security and M2M applied to mobility pretty exciting right now. And they are not "classic".
~Juan B., Engineering Consultant, Madrid, Spain
Remote monitoring of field equipments, eg fire alarm panel transferring of machine status, eg from the I/O of the PLC.
~Kiang T, Project Manager, Singapore, Singapore
This can be used for switching of lighting in remote locations.
~MUTHAIYAN C, Process Engineer, SURAT, INDIA
Wireless adapter for printers on a network.
~Noel E., Automotive, Urbana, OH
Wireless Gesture HB LED Dimmer
~Luis Diego D, Research & Development, Doral, FL
Outdoor lighting
~Engineering, Design, Bangkok, Thailand
Telemetric ecg
~Engineering, Consulting, Budapest, Hungary

Q:
What wireless systems have you used?
24 answers
Answers:
Customized wireless systems for Defense applications....mix of Wi-Fi and some of GSM technology.
~Ravi S, Wireless R&D Manager, CHENNAI, INDIA
Industrial applications in heavy environment based on IEEE802.11abgn Process control and Video data
~Fred W, Design Engineer, Weesp, The Netherlands
Synapse SNAP using Synapse and Panasonic 2.4GHz radio modules
~Engineering, Design, Danbury, CT
R/F Transmitters and Receivers Spectrometer CDMA Antennas
~Noel E., Automotive, Urbana, OH
Helped setup and maintained at the Dallas Convention Center.
~Technical Support/Services, Dallas, TX
UHF-Band, L-Band, S-Band transmitters, receivers, repeaters
~Engineering, Consulting, Maple, Canada
802.11a/b/g/n Wifi. Branch I use is MikroTik and Ubiquity.
~Rudy P, Owner, therefore all titles apply., Castalla, Spain
The whole set. From WiFi to Wimax, GSM, UMTS, CDMA, LTE...
~Juan B., Engineering Consultant, Madrid, Spain
2.4 & 5ghz 802.11 ABGN from ruckus, mikrotik & ubiquity
~Engineering, Design, Rhodes, Australia
Gsm controller/modem bluetooth I/O controller
~Kiang T, Project Manager, Singapore, Singapore
Texas Instruments Nordic Semiconductor
~David G, CTO, Falcarragh, Ireland
Lowpower wireless sensor network
~Uma Datta, Research & Development, Durgapur, India
Remote keyless entry systems
~Engineering, Design, Tlajomulco de Zuñiga, Mexico
Belkin, Cisco, and Netgear.
~Sarah McGraw, Project Manager, Owens Cross Roads, AL
IEEE 802.15.4, RFID
~Luis Diego D, Research & Development, Doral, FL
Bluetooth enOcean
~Engineering, Design, Pretoria, South Africa
Router linksys
~Engineering, Consulting, Caracas, Venezuela
Hartwireless
~Engineering, Design, Villahermosa, Mexico
WiFi & Dect
~General Management, DF, Mexico
All brands
~Fiorenzo D, Manufacturer, BOMBINHAS, Brasile
802.11 b/g
~Technical Support/Services, Birmingham, United Kingdom
Cellphone
~Engineering, Consulting, Budapest, Hungary
WiFi
~Adrian C, Technical Support, Bucharest, Romania
Gps
~Engineering, Design, Bangkok, Thailand

Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of wireless systems?
7 answers
Answers:
Yes... in one of the hospitals there was an important surgical operation that came down to halt because some one switched on their mobile and it triggered the false alarm. In that hospital there are strict regulations NOT to switch on mobile phones, because of some bug in their wireless systems connected to operation theater equipment.....then it led to disaster....surgery had to stop in the middle and reset all the equipment, then start..... time lost for the patient who was on the surgery table.
~Ravi S, Wireless R&D Manager, CHENNAI, INDIA
Yes - R/C model aircraft often crash if someone switches on their transmitter that is operating on the same channel (SSFH obviates this situation).
~John M, Market Analyst (Industrial Automation), Wellingborough, England
Well, not disasters but serious business damages. The growth of mobile broadband is catching up with operators networks capacity.
~Juan B., Engineering Consultant, Madrid, Spain
On my own behalf? Yes, I should have invested in different devices (antennas) if I only would have known more earlier.
~Rudy P, Owner, therefore all titles apply., Castalla, Spain
A broadband cable connected in a LAN socket with DHCP enabled, messed up the network.
~Adrian C, Technical Support, Bucharest, Romania
Watch out for coexistence issues with other wireless interfaces.
~Luis Diego D, Research & Development, Doral, FL
Interference seems to be the biggest issue.
~Noel E., Automotive, Urbana, OH

FeaturesTop

Q:
What would your design or feature "wish list" be for these products?
16 answers
Answers:
Highest integration possible for lowest cost Microprocessor (at least 28kB) and Wireless Section Power management Built in non volatile memory for both program and datalogging Good ADC Extreme Low power sleep mode
~David G, CTO, Falcarragh, Ireland
Better interference resistance. Not only higher sensitivity, also better selectivity. In crowded spectrum this becomes more and more important to guarantee stable networks.
~Rudy P, Owner, therefore all titles apply., Castalla, Spain
As far as possible the gadgets should be minimum on the configuration part while installation and user friendly is more invited, like plug and play.
~Ravi S, Wireless R&D Manager, CHENNAI, INDIA
Look out for new sensitivity parameters based on DSP filter oriented signals. Devices will become more multiradio platform in short period of time.
~Juan B., Engineering Consultant, Madrid, Spain
1. Low cost IDE 2. API with a higher level of abstraction 3. Accessible and low cost PCB design/assembly service
~Luis Diego D, Research & Development, Doral, FL
Special filtering of data for roaming in high reflective environments to get high speed roaming.
~Fred W, Design Engineer, Weesp, The Netherlands
More than one USB port on the Linksys router Longer lasting batteries for mobile devices.
~Noel E., Automotive, Urbana, OH
If I could, I would like to have more reliable, faster wireless systems.
~Sarah McGraw, Project Manager, Owens Cross Roads, AL
They are totally reliable in any situation relevant to the application.
~John M, Market Analyst (Industrial Automation), Wellingborough, England
One-to-many network many-to-one network mesh network
~Kiang T, Project Manager, Singapore, Singapore
Router with print server & bonus Samba Sharing
~Adrian C, Technical Support, Bucharest, Romania
Level control for higher elevation
~MUTHAIYAN C, Process Engineer, SURAT, INDIA
Mobility & triple play support
~General Management, DF, Mexico
CDMA wireless sensor network
~Uma Datta, Research & Development, Durgapur, India
802.11n 802.11s
~Technical Support/Services, Birmingham, United Kingdom
Lighting
~Engineering, Design, Bangkok, Thailand

Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using wireless systems?
10 answers
Answers:
When selecting a wireless system, users should evaluate the signal strength requirements, number of broadcast channels (I recommend dual band), consider placement of the equipment for aesthetics, for future maintenance, and for maximum signal transmission. Users should also consider security for their wireless systems. In all cases, users should shop for the best quality that they can afford, and compare life-cycle costs of equipment.
~Sarah McGraw, Project Manager, Owens Cross Roads, AL
Realize that wireless is always a compromise to wired connection. Realize that the radio data capacity is not to be compared with wired data capacity.
~Fred W, Design Engineer, Weesp, The Netherlands
Yes....please look for the standard products to get the required QoS, in return for your money spent.
~Ravi S, Wireless R&D Manager, CHENNAI, INDIA
Get involved in the spec process. And watch out for IPR. There is a minefield there.
~Juan B., Engineering Consultant, Madrid, Spain
Yes this state of art technology this can be used in human non approachable areas.
~MUTHAIYAN C, Process Engineer, SURAT, INDIA
Shop around - be sure it can meet the requirement before parting with your cash!
~John M, Market Analyst (Industrial Automation), Wellingborough, England
Try to work with solution providers (SoC+IDE+Technical Support+PCB Design).
~Luis Diego D, Research & Development, Doral, FL
Research the application requirements fully before committing.
~David G, CTO, Falcarragh, Ireland
Keep a good security system and encryption..
~Noel E., Automotive, Urbana, OH
Good Brand that updates the product.
~Adrian C, Technical Support, Bucharest, Romania

Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of wireless systems?
10 answers
Answers:
Yes, while selecting the wireless equipment first of all shortlist and focus your needs; there are gadgets having diverse applications making big holes in your pocket; just narrow down your requirements and be focused to get the equipment only on that focus/need; just you need to go for some amount of dig down exercise to suit your needs.
~Ravi S, Wireless R&D Manager, CHENNAI, INDIA
1. Work with a trusted vendor or manufacturer that has a dedicated customer service. 2. If you're working with secure applications, watch your bandwidth budget and avoid throughtput issues when using encryption. 3. Debug.
~Luis Diego D, Research & Development, Doral, FL
If I could share any advice with users, I would tell users to buy a wireless system with an excellent warranty, and to buy from a company with a record of good customer service.
~Sarah McGraw, Project Manager, Owens Cross Roads, AL
Better understanding of radio wave propagations and impact on digital data spread by means of wireless medium with the use of different technologies.
~Rudy P, Owner, therefore all titles apply., Castalla, Spain
Test all unfavorable conditions before using the wireless system in a mission critical application (i.e. don't risk what you can't afford to lose).
~John M, Market Analyst (Industrial Automation), Wellingborough, England
Do not put the broadband cable in LAN socket Do not put a 300Mb/s device on channel 11 or more
~Adrian C, Technical Support, Bucharest, Romania
Always perform a site survey rather than "guessing that it will work".
~Fred W, Design Engineer, Weesp, The Netherlands
Make sure all components are compatible before purchase.
~Noel E., Automotive, Urbana, OH
Frequency band selection regarding range considerations.
~David G, CTO, Falcarragh, Ireland
Examine handsets or terminal device cost.
~Juan B., Engineering Consultant, Madrid, Spain

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