Thursday, August 16, 2012

Which Operating system is not Hacked Yet? ......That is mainframe

Hello friends,

The only operating System & server which is not hacked yet, & not possible in feature also is MAINFRAME. That is why almost all the banks, Insurance companies, & those who are dealing with money, use to prefer mainframe only. That is the most secured server in the world.

As it is most secured. on the other hand it is very very much costly. In the survey it is found that banks spend nearly 70% of their expenditure on IT infrastructure.

Windows is an operating system started off as being meant for one user only, and they could run only one program at a time, and it was written to manage real devices in the PC, that is, it was limited to what the PC had.

When it was realised that this approach meant that programs which required more hardware capacity (like memory) could not be written, special routines that virtualised hardware had to be written. However, the underlying operating system files etc were all open to anyone who wanted to install software, that is, any programmer could overwrite system software causing malicious or unintended damage.The operating system grew organically and tries to mimic multi- user environment, virtualisation and allowing multiple programs at the same time etc, but this has been developed as additions and not designed from ground up. Hence the stability issues and issues of hacking because the entire system software etc was open for anybody to overwrite with their own code.

Mainframe OZ (zOS) on the other hand was written ground up to be virtual,multi user system, multi program system. The hardware was always virtualised and programmers do not deal with physical limitations of the system.

Next, Operating system files and production code always was protected by the creation of a strict discipline and the creation of special libraries from which they could be run. This is controlled by system programmers.

Application programs never replace operating system files unlike in Windows or UNIX (to a lesser extent).

This created this environment never to be hacked to date.

If you want proof of this claim, consider what you can find by searching news archives and trade journals, looking for references to mainframes and data loss, hacking, security breaches, and similar topics. Recent research included checking the archives of ComputerWorld, InformationWeek, and The Wall Street Journal for reports of unauthorized access of any traditional mainframe environment via userid/ password exploitation, corruption of a mainframe-based networking resource, or contamination of a mainframe sys- tem software component.

Sunday, August 12, 2012

True Facts about Mainframe

Hello Dear Friends,
   I am herewith some of the true & important facts @ Mainframe, Its Very Interesting & much more demanding. So some of the facts are as

Mainframe facts.....!!!!!

1. All 25 of the world’s top banks still use mainframes, while 71 per cent of global Fortune 500 companies are mainframe clients as well. Additionally, nine out of the top 10 global health insurance providers process all of their high-volume transactions on a mainframe. This shows that, despite incursions being made by software as a service (SaaS) providers, an overwhelming majority of the world’s big business still value the reliability and security of mainframes, particularly for mission-critical functions.

2. Around 63 per cent of mainframe sites in the Asia-Pacific region believe the lack of skills in the current generation of mainframers is a major concern. In Europe, 66 per cent of mainframe sites believe mainframes are already suffering from a serious skills shortage.

3. About 72% of mainframe sites have mainframe staff eligible for retirement. (CA 2011)

4. The mainframes hold approximately " 70 % " of the entire data stored in this planet
5. The latest ones can support over 25,000 users
6. They can support devices spread over 26 miles using fibre optics
7. The size of the "basic" OS is about 14 GB
8. This OS comes in about 57 magnetic tapes, But latest with 4 tapes
9. It takes ATLEAST a month to install and customize a basic mainframe OS configuration
10. It takes around 3 full days for a mainframe to get up and running
11. Basic configuration for development environment costs 8 crores (hardware + Software)
12. A full team of qualified system operators are always required to be on stand by to ensure successful operation
13. Earlier mainframes were provided with cooling pipes through which cold water was passed to cool the system - TCS have one in Chennai facility
14. Recent mainframes have variable speed fans in the cabinet to keep it cool
15. Have u ever heard of a mainframe system being hacked??? Mainframes are one of the most secure data installations ever
16. You cannot buy the mainframe OS, but u'll have to pay a license to use it. The cost?? cool ......1.5 crores a year.
17. Finally, mainframes today r the most preferred data servers for even the most hi-fi of the organizations!
18. So far no virus has attacked Mainframes

    So this is how mainframe is...!!!!

Saturday, August 11, 2012

DB2 – faster than a speeding bullet?

Last week, IBM sent out press releases saying that it has achieved the industry's highest ever TPC-C (transaction processing) benchmark using a Power Systems configuration with DB2, hitting 10,366,254 transactions per minute. And in case you don't realise just how fast that is, the press releases goes on to inform us that it beats HP's best result by more than 2.5 times and Oracle's best by more than 35%!

We're told that: "The results place IBM in a unique position as the undeniable leader. With these new clustered results (and with the long-standing single system result), IBM has demonstrated its ability to scale up to handle higher transaction loads and to scale out to optimize more types of workloads than the competition."

This result is the largest ever TPC-C result published (dated 17 August 2010) and was obtained on a cluster of three IBM Power 780 servers featuring a storage subsystem with 116TB of Solid State Drives (SSDs) and running DB2 9.7.

Just to rub in the fact that it beats the Old rival, Oracle, the press releases goes on to inform us that: "The IBM result represents 2.7 times better performance per core than the Oracle result, 41% better price performance, and 35% better energy efficiency per transaction. IBM's performance is also more than 2.5 times better than HP's best result, 69% greater performance per core, and 2.1 times better price/performance."

The new TPC-C benchmark result uses standard IBM software. DB2 9.7 has been around since June 2009, and AIX 6.1 was released in November 2007. IBM says that the selection of software versions reflected levels currently in use by a large number of their clients.

IBM highlights the fact that the IBM TPC-C results on POWER7 technology shows off IBM Storage technology in the form of Solid State Drives (SSDs), which enable higher throughput and lower response times. SSDs also provide reliability, lower energy usage, less cooling requirements, and the ability to reduce data centre footprints. The total storage used was over 800TB while the Oracle/Sun configuration had 686.6TB of total storage.

The Oracle/Sun cluster is 71% more expensive based on published price/performance relative to the IBM Power 780 cluster result. The total system cost of the Sun cluster is 26% greater than the total system cost of the IBM cluster. Because of different discount structures, care should be taken in comparing individual price components.

As a result of these differences, the TPC does not allow comparisons using TPC price information on anything other than the total configuration. The IBM Power 780 with DB2 9.7 result yields greater than 10 million tpmC for IBM (a feat Oracle hasn't accomplished) and significantly better price/performance for the IBM solution.

The configuration for this benchmark achieves an estimated consumption of 65.1 kWatts or 6.3 kWatts per million tpmC, 35% better than the Sun cluster energy consumption estimate of 73.9kWatts or 9.7 kWatts per million tpmC.

You get the idea anyway – there's more of the same in the press release. The bottom line is that IBM can now claim to provide performance in excess of double-digits (10 Million Transactions Per Minute), which, they say, no-one else can do.

Tuesday, July 24, 2012

after 3G and 4Gwht is there......its 5G comming soon

First (1G), second (2G), third (3G) and fourth (4G) generations of mobile technology are not new to us, however, 5G WiFi is, something that we got to hear in 2012-13.
Now the Question is What is 5G exactly?

           5G WiFi refers to 802.11ac, the latest version of WiFi technology. 802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in 802.11a, 802.11b, 802.11g, and 802.11n versions.

            It is also termed as Gigabit WiFi since it is the first WiFi technology that is capable of offering peak data rates of 1 Gbps or more, even up to 3.6 Gbps, compared to the 600 Mbps peak data rate possible with 802.11n, aka N or Wireless-N, 11ac’s predecessor. Now, why it is called the 5G WiFi is because it is the fifth generation of the technology after 802.11a, 802.11b, 802.11g, and 802.11n.

      The first generation of WiFi 802.11a with 3Mbps speed was used during 1997-1998 period, the second generation, 802.11b, with 11 Mbps was used during 1999-2001, the third, 802.11g, with 54 Mbps was used from 2002 to 2006 and the fourth 802.11n with 600 Mbps was used from 2007 till 2011. Development of 802.11n began in 2002, but it took seven years for the finalization of this standard.
              It was Broadcom who first started using the term 5G WiFi when it launched its 802.11ac chips, early this year and also has a website http://www.5gwifi.org dedicated for this.

Top 10 companies in IT services

World’s Top 10 brands / companies in IT services

Brand Finance, a company that specializes in brand valuation has recently announced World’s Top 10 brands in IT services. Among this list 3 Indian IT Companies are there, that’s a good news for Indian IT market.

Tata Consultancy Services (TCS) comes in at number 4 behind IBM, HP and Accenture. Infosys is fifth, followed by Cognizant at number 9 and Wipro at number 10.

Here’s the entire list of World’s Top 10 brands in IT services.

1)     IBM   —> Brand Value: $39.1 billion 2)     HP    —> Brand value: $21.7 billion
3)     Accenture   —> Brand value: $ 6.8 billion
4)     Tata Consultancy Services (TCS)  —> Brand value: $4 billion
5)     Infosys    —> Brand value: $3.6 billion
6)     Cap Gemini   —> Brand value: $2.8 billion
7)     Computer Services Corporation (CSC) —> Brand value: $2.1 billion
8)     Atos Origin   —> Brand value: $2 billion
9)     Cognizant (CTS)    —> Brand value: $1.79 billion
10)    Wipro         —> Brand value: $1.76 billion

Source : NASSCOM

Friday, July 13, 2012

MultiSim - circuit Simulator free download

Hello friends,

This is very nice software for Electronics engineers to work, For all your academic practicals & projects. This simulator contain micro controller IC's so that you can simulate any circuit containing micro controller or microprocessor.

What is multsim?

This is the circuit simulator used for simulating the various types of analog & Digital circuits, Even it is possible to simulate the circuits of microcontroller circuits.

Multisim is the schematic capture and simulation application of National Instruments Circuit Design Suite, a suite of EDA (Electronics Design Automation) tools that assists you in carrying out the major steps in the circuit design flow. Multisim is designed for schematic entry, simulation, and feeding to downstage steps, such as PCB layout.

Minimum System Requirements

To run NI Circuit Design Suite 11.0.1, National Instruments recommends that your system meet or exceed the following requirements:

• Windows Vista/XP 32-bit editions.

• Windows Vista 64-bit edition.

• Windows 7 32-bit and 64-bit editions.

• 512 MB of memory (256 MB minimum).

• 1.5 GB of free hard disk space (1 GB minimum).

Steps to install MultiSim

Download all 5 parts by clicking on the following links

MultiSim_11.0.1_Ultiboard_PowerPro_+_Crack_Keygen.part1.rar

MultiSim_11.0.1_Ultiboard_PowerPro_+_Crack_Keygen.part2.rar

MultiSim_11.0.1_Ultiboard_PowerPro_+_Crack_Keygen.part3.rar

MultiSim_11.0.1_Ultiboard_PowerPro_+_Crack_Keygen.part4.rar

MultiSim_11.0.1_Ultiboard_PowerPro_+_Crack_Keygen.part5.rar

Save all them in single folder

Open any of the part, the screen like below given will appear

Click on Extract to

Give the specified path where you wish to save it

Now open the folder MultiSim 11.0.1 Ultiboard PowerPro + Crack Keygen

Install the application by using NI_Circuit_Design_Suite_11_0_1.exe

Choose the option of trial version while installing.

Once you have installed multisim, use kg_v1101 license generator.exe for generating the license file

Open the lic generator

For full version press 2 & Enter

Now in the folder check for license files (.lic), Two license files will be generated

Now use these license files for activating the application

· Click : Start button

§ Programs

§ National Instruments

§ NI License Manager

§ Options

§ Install License File

§ Select Multisim_PKG & Utiliboard_PKG license files from folder License Generator is located, then click OPEN

§ If “Do you want to overwrite?” Select YES

§ Close all Windows

Done

Now you can enjoy the full version of multisim

One more software by National Instrument for Instrumentation Purpose i.e LABVIEW. I will post it soon

Monday, March 26, 2012

Very Usefull links for ROBOT builder

Hello Everyone,

Here i am posting some of the important links that i came across before few days, related to robot building,
These links help u too much, just try each related link.

1. Electronics

1.1. General electronics sites

A collection of tutorials in electronics subjects. Well worth a look.

http://www.designnotes.com/designschool.htm

A huge collection of links to other electronics sites, nicely indexed.

http://www.epanorama.net/

Another excellent large collection of links to electronics and software sites.

http://www.pin-outs.com/directory/

A large resource of articles written by industry insiders, field service engineers, and semiconductor company engineers on a wide variety of electronics subjects.

http://www.chipcenter.com/kc/

A personal page by an electronics enthusiast. Very entertaining stuff, as well as informative.

http://www.electricstuff.co.uk/

A circuit theory textbook online

http://www.sweethaven.com/acee/forms/toc01.htm

HVW Tech have many documents on a variety of electronics & robotics subjects on their site

http://www.hvwtech.com/downloads.htm
http://www.hvwtech.com/learning.htm

Excellent optics resource and community

http://www.optics.net

Excellent electronics resource and community

http://www.electronicsee.com

1.2. Electronics circuit archives

These sites offer archives of circuit diagrams. Most should be tested, but this is by no means guaranteed!

Electro Tech Online
Electro tech offers a great resource for discussing General Electronics, Electronic Projects, Robitics Chat and PIC/BASIC Programming. Electro Tech also offers Free Electronic Projects and Theory Articles.

1.3. Chip information

http://www.equinox-tech.com/chipdir/c/a.htm
http://www.chipcenter.com/circuitcellar/
http://www.bonex.co.uk/startpages/framed/home.htm

1.4. Electronics company information

http://www.epanorama.net/companies.html
http://www.nctnico.cistron.nl/all_man.htm

1.5. PCB layout and manufacture

Eagle Layout Editor - The best free PCB design tool on the web. Superb. Free version is restricted to 10cm x 8cm size and no more than double sided but that still allows very complicated projects. Features schematic capture, extensive libraries, very good ripup-and-retry autorouter, user groups, extensive array of online public domain tools available for it.

http://www.cadsoft.de/

PCB Pool - Very good value PCB production house. For example, a double sided 10cm x 8cm PCB designed using Eagle above cost just £24 for a one-off including all P&P costs. Based in Ireland. Very helpful on the phone.

http://www.pcbpool.com/

ExpressPCB - A free PCB layout tool, with optional online manufacturing ordering (from USA). Cheap even though they come from the USA.

http://www.expresspcb.com/

PROTEUS Lite - A shareware PCB layout package. Better than ExpressPCB but no tied manufacturing service.

Proteus Lite at download.cnet.com

An excellent description of how to make your own PCBs. I did this stuff for 4 years and came to exactly the same conclusions as Mike has here. Making PCBs really isn't very hard these days now that most people have a PC which can run free layout software, and have a good printer that can print dark black onto transparencies.

Another guide to making PCBs

http://www.geocities.com/SiliconValley/3569/data/pcb2.htm

A method of building prototype circuits without making PCBs (and not using the dreaded Veroboard!). I'm not totally convinced by this method, personally I think it is always worth making a PCB. Using the techniques described in the links above, making PCBs is really quite easy.

http://www.chipcenter.com/circuitcellar/december00/c1200sb1.htm

An article describing the effects bad PCB layout can have, particularly on analogue circuits. Essential reading if you are building your own speed controller!

http://www.chipcenter.com/analog/c060.htm

1.6. Kits

Quasar Electronics http://www.quasarelectronics.com

Radio Shack (aka Tandy) http://www.radioshack.com/

This Greek company sell battery charger kits.

http://www.smartkit.gr/

1.7. MOSFETs

http://www.infineon.com/products
http://www.irf.com/technical-info/appnotes.htm

1.8. Optocouplers

A few manufacturers of optocouplers. All have online datasheets:

Agilent is the new name for Hewlett Packard Semiconductors.
http://www.semiconductor.agilent.com/isolator/
IDT:
http://www.idt.com/
Infineeon is the new name for Siemens Semiconductors.
http://www.infineon.com/cgi/ecrm.dll/ecrm/scripts/prod_cat.jsp?oid=-8198
Sharp are a big name in optoelectronics:
http://www.sharpsma.com/sma/Products/Opto/new_products/photocouplers.htm
Toshiba:
http://www.toshiba.com/taec/cgi-bin/display.cgi?table= ProductDetail&ProductID=2796

1.9. Electronic devices for robots

Acroname make some pretty cool stuff including range finding and machine vision. Lots of technical article here too.

http://www.acroname.com/

An article describing range finding using the polaroid 6500 ranging module

http://www.acroname.com/robotics/info/articles/sonar/sonar.html

Using infra-red devices for range-finding.

http://www.acroname.com/robotics/info/articles/sharp/sharp.html

Robot vision - making your robot able to see!

http://www.acroname.com/robotics/info/articles/ramcam/ramcam.html

1.10. Microcontrollers and development systems

Quasar Electronics PIC programmer and Atmel ABR programmer

http://www.quasarelectronics.com/pic_programmers.htm
http://www.quasarelectronics.com/atmel_programmers.htm#3122

The Atmel AVR series is popular amongst hobbyists.

http://www.xs4all.nl/~sbolt/e-spider_prog.html

A couple of build-your-own PIC programmers:

http://www.geocities.com/CapeCanaveral/7706/prog2.html

The Chip Directory section on microprocessors chronicles the development and describes a great many processors.

http://www.chipdir.com/chipdir/f/mcu.htm

ePanorama's microcontroller links section

http://www.epanorama.net/microprocessor.html#microcontrollers

Rabbit Semiconductor make a clone Z80 microcontroller with a cheap development kit

http://www.rabbitsemiconductor.com

1.11. Other useful electronics articles

A beginners guide to what capacitors are

http://www.uoguelph.ca/~antoon/gadgets/caps/caps.htm

All about capacitors. These devices are not as simple a you may think. An advanced guide.

http://tm0.com/sbct.cgi?s=118415788&i=353328&d=1467049

2. Speed controllers

4QD. Manufacturer of speed controllers. Has a lot of good technical info on the site too.
The Open Source Motor Controller project. A speed controller design & project.

http://www.inconnect.com/%7Edennis/osmc/

IFI Robotics. Manufacturer of speed controllers.

http://www.ifirobotics.com/victor_883.htm

A description of electronic speed controllers

http://www.omegaco.demon.co.uk/mechtml/fmectech.htm#anchor479856

3. Motors, Solenoids, and Actuators

Iskra. Manufacturer of electric motors. Includes sketchy performance characteristic graphs. http://www.avtoelektrika.com/

Parvalux. Manufacturer of electric motors. No technical data that I can find.
http://www.parvalux.co.uk/products.asp

Litton. Manufacturer of electric motors and actuators. Includes comprehensive datasheets.
http://www.litton-ps.com/Motors/motors.html

Theory of starter motors. Quite a good page.
http://www.apra.org/publications/electrical/fordther.htm

Controlling voltage spikes (motor suppression). SGS Thomson Acrobat document.
http://us.st.com/stonline/books/pdf/docs/1703.pdf

Lynch. Manufacturer of electric motors. Characteristic graphs included.
http://www.lynchmotor.com/

Using car windscreen wiper motors
http://www.geocities.com/sprite-midget/wipers.htm

4. Batteries

http://www.battery-index.com/
http://www.mhpower.com.au/TecBroInx.html
http://www.4qd.co.uk/faq/bmnc2.html
http://www.oksolar.com/battery/deka.html
http://www.hepi.com/lit.htm
http://www.steatite.co.uk/batt/rg12v_24.htm
http://www.sonnenschein.org/
http://www.yuasa-exide.com/catalog.asp

A commercial battery charger manufacturer
http://www.statpower.com/prdlst3.htm

A commercial battery charger manufacturer. Not sure whether any of these are suitable for SLA batteries though, even though they say they are suitable for all lead acid batteries.
http://www.gunson.co.uk/acatalog/index.html

A commercial battery charger manufacturer. Ths company manufacture a device which they purport will bring dead SLA batteries back to life.
http://www.4unique.com/battery/pulsetech/pulsetech.htm

Ibex make battery chargers and gave lots of useful information on their site.
http://www.ibexmfg.com/index.htm

US supplier of many types of batteries. Limited technical information.
http://batterymart.com

5. Radio control

5.1. General interest sites

A comprehensive introduction to using radio control on fighting robots.
http://www.narc.org.uk/bld_elect/rc_index.php

Loads of helpful articles, mainly about CB, which are still relevant to us.
http://www.firestik.com/Tech_Docs.htm

The Model Electronics Company site has some great stuff, presenting projects as well as commercial products.
http://www.omegaco.demon.co.uk/mechome.htm

This radio ham has loads of useful information on his site
http://www.geocities.com/SiliconValley/3569/

Everything You NEVER Wanted To Know About Radios! Some technical inaccuracies to do with AM & FM bandwidth, but a reasonable introduction.
http://www.torreypinesgulls.org/Radio%20Article.htm

The theory of superheterodyne (dual conversion) radio receivers
http://www.ezlink.com/~crash/parks/hetbasic.html

The Panorama Electronics Link Site - Radio section. Loads of links to technical sites to do with radio communications, antennas, etc.
http://www.epanorama.net/radio.html

The British Model Flying Association has some information on radio control.
http://www.bmfa.org/links_commercial.html

Low Power Radio Solutions sell telemetry modules. The CDP-02 from Circuit Design operates at 459MHz which is an allowable frequency for Robot Wars in teh UK.
http://www.lprs.co.uk/site01dec99/main.html

http:www.cdt21.com

Some links to hobby radio control sites.
http://www.welwyn.demon.co.uk/sites.htm

A good RC information site
http://rcvehicles.miningco.com/hobbies/rcvehicles/library/glossary/bldef_dualcon version.htm

The Radiocommunications Agency in the UK govern the frequency spectrum. This is the band of the spectrum that we are using.
http://www.radio.gov.uk/document/ra_info/ra365.htm
http://199.104.132.208/ProdCat/tax/0,1252,M942369080308,00.html

This document from the Model Electronics Company describes all the model frequency bands
http://www.omegaco.demon.co.uk/mechtml/fmectech.htm#anchor80638

If you are thinking about designing a 40MHz radio link yourself, like I was at one point, then Motorola produce this excellent IC (MC13310) which was designed for CT1 cordless phones that will operate at the 40MHz channel frequencies. Software for driving this chip is shown in the Embedded chapter in "Radio.c".
http://www.mot.com/SPS/WIRELESS/cordless/46_49mhz.html

Motorola ICs
Unfortunately Motorola no longer supply the above chip. However, a very similar IC, the UAA2062, is produced by Phillips
http://www.semiconductors.philips.com/pip/uaa2062ts/c1

A large site containing information on RC electronics
http://www.eagleairaust.com.au/

5.2. RC Receivers and Servos.

HVW Tech. Lots of technical information included.
http://www.hvwtech.com/servos.htm
Information about the encoding of radio control radio sets
http://www.geocities.com/BourbonStreet/3220/servotx.html
Another page like that above
http://home.iprimus.com.au/nooyen/multi.htm
A basic introduction to radio control servos
http://www.seattlerobotics.org/guide/servos.html
Another Servo tutorial (in two parts)
http://www.uoguelph.ca/~antoon/hobby/servo1.htm
http://www.uoguelph.ca/~antoon/hobby/servo2.htm
More in-depth information on RC servos
http://www.geocities.com/BourbonStreet/3220/servobasics.html
Some circuits for generating and receiving PPM RC signals
http://www.geocities.com/SiliconValley/3569/use/rc-prop.htm
Servo pinouts and connectors
http://www.uoguelph.ca/~antoon/hobby/servopin.htm
http://www.uoguelph.ca/~antoon/hobby/leads.htm
A three part tutorial in PPM radio control
http://www.omegaco.demon.co.uk/mechtml/fmectech.htm#anchor160947

5.3. Radio control hobby stores.

Quick UK
http://www.quickuk.co.uk/raccs.htm
Sussex Model Centre
http://www.sussex-model-centre.co.uk/
Tower Hobbies
http://www.towerhobbies.com/rcweb.html

5.4. Radio control equipment manufacturers

Links to many RC electronics manufacturers
http://rcvehicles.miningco.com/cs/mfgselectronics/index.htm
Hitec. Manufacturer of RC sets.
http://rcvehicles.miningco.com/gi/dynamic/offsite.htm?site= http://www.hitecrcd.com
QuickUK supply 40MHz base loaded antennas:
http://www.quickuk.co.uk/raccs.htm
Novak. Manufacturer of ESCs and receivers
http://www.teamnovak.com
Airtronics. Manufacturer of RC sets.
=http://www.airtronics.net
Futaba. Manufacturer of RC sets.
http://www.futaba%2Drc.com

5.5. Radio interference.

Note that this section is specifically about interference problems in radio control modelling. All the comments in the EMC and radio sections also applies.
An article about interference for RC plane flyers.
http://www.uoguelph.ca/~antoon/hobby/rip.htm
This model club has a page on radio interference and tips on how to reduce the problem.
http://tenthoffroad.co.uk/interference.html
Technobots supply products to robot builders, and have this excellent help page for EMC.
http://www.technobots.co.uk/technical/guidance/EMI%20and%20how%20to%20deal%20with%20it.pdf

5.6. Antenna.

Capacity hat antenna used by a competitor
http://www.longrange.net/BattleBot/Antenna.html
Quick UK supply 40MHz antennas which are rather hard to get hold of. Part no H5330
http://www.quickuk.co.uk/raccs.htm
Flair products also sell 40MHz antennas. Part no MX75119.
http://www.flairproducts.co.uk

Radio tech manufacture antennas for the 459MHz band. Part nos Hel-458 and 1/4-458
http://www.radio-tech.co.uk/antenna.html

Very soon i will post some of the books related to robotics

About me

Thank you for your interest to know about me. You may find any inspiring and exiting information, Technical information, new Software's & many more. Just keep Following me. More about me, I am Prakash Narkhede basically from Buldhana , Maharashtra, Working as a Application Developer with IBM India Pvt. Ltd on Mainframe development & QA. Before IBM, i worked as a lecturer in ISB & M School of Technology Pune for approx 2 years. I am mostly interested in new cutting edge technologies in electronics ....keep following me .....