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Wireless 108 – one more time

 
Last Friday, august 6th, another program of the wireless 108 course came to an end. The course took place at our network academy in TCV, Dharamsala. The course was attended by 14 students mainly hailing from the Vocational Training Center in selakui.
 
wireless 108-6
As in previous times when the course was given, we covered the basics of computers (hardware and software) and networks (wired and wireless) with an aim to enable participants to carry out basic PC troubleshooting, create a simple server-based network and connect computers to it via wired and wireless interfaces. 
What started in 2007 as a framework for providing students with easy access to basic knowledge in computers and networking has evolved to a wider concept.

Wireless 108 Summer Course beginning soon

course31

We are happy to announce that registration for a new Wireless 108 course is now open. The four-week course (June 20 - July 15) will be delivered out at our premises in Upper TCV, Dharamsala, Himachal Pradesh. The overall course cost will be Rs. 5,000, which will cover tuition and study materials. Travel, accommodation and food are the participants' responsibility (we will be happy to advise on possible accomodation in the area). 

And then came the snow...

Snow on the antennasThe cold wave in North India announced itself in Dharamsala with a bitterly cold snow storm in Mid January. Waking up to the sleek white surroundings would usually give the sense of pure tranquillity, which regardless of climate is not usually hard to find in Dharamsala. However it was not long before the impact of the snow had its effect on everyday necessities. Roads were snowed in, electricity down and thus internet barely available across the network.

Throughout the week of the snowstorm the AirJaldi team worked overtime, getting the Dharamsala network back on track. The sheer weight of the snow had disabled cables, they had to be rewired. Naturally water is not good for radio signals, thus towers were climbed and antennas wiped of snow.

Inclusive Learning

AirJaldi 108 New course opening on Feburary 7

 

 

A new Wireless 108 course will be opening on Monday, February 7. the four-week course (February 7 - March 4) will be carried out at our premises in Upper TCV, near Dal Lake, upper Dharamsala. The overall course cost will be Rs. 5,000, which will cover tuition and study materials. Travel, accommodation and food are the participants' responsibility.

The course is open to anyone who speaks English (our instructor can speak Tibetan and Hindi, but the materials and language used in the course will be English), has an interest in computers and is willing to put his/her head and hands to work.  

While some seats are reserved, a few places are still available. If you are interested in attending the course, please write us at info@airjaldi.org. It would greatly help us if you give us some details about yourself - in particular your background in computers (if any) and reasons for wanting to join the course.  
 
We look forward to hearing from you!

Research update

 

As many of you know, we at AirJaldi take pride in our tight collaboration with academia and leading research institutes, chief among which is the UC-Berkeley's TIER group. These collaborations have proved instrumental in keeping the technical edge and allowed AirJaldi to continuously improve our own and others' understanding of rural networking.

JaldiMAC

 

Wireless 108 is on!

 

The AirJaldi Network AcadWireless 108 - Yonten emy’s new offering – Wireless 108 – is on at the AirJaldi premises in Upper TCV. The four week course, delivered by Tenzin Yonten, is AirJaldi’s new offering. Wireless 108 is our basic wireless course, which is aimed at anyone who has basic computer knowledge, good knowledge of English, interest in the field and willingness to put one’s hands and head to work.

The course is designed to cover the basics of computers (hardware and software) and networking (wired and wireless). At the end of the course, participants are able to carry out basic PC troubleshooting, create a simple server-based network and connect computers to it via wired and wireless interfaces.

Spilling the IT baby with the ICT4D trial water?

comproomyRecently, a fine article by Anurag Behar, co-CEO of the Azim Premji Foundation , entitled "Limits of ICT in Education" was published in LiveMint.Com .

In it, Mr. Behar concludes that “After 5 years [of developing a digital learning resource library and supporting schools who made use of it], when we took stock at a fundamental level, we realized that the whole thing was at best a qualified failure.”

Having read it with great interest, and being involved with activities in the derided ICT4D field, I thought of sharing my own thoughts on this thougtful and provoking piece. 

 

 

Two years away - what have changed?

 

 

It's been very long since my last blog post here!

So many things have changed since I moved to Berkeley a bit more than two years ago...

 

On the personal front, I'm now the proud father of two kids (yes two in two years) - Divya (just turned two) and Nitai (he's now seven months old).

 

As for the technology, I came across an old document yesterday - "Keeping the network alive", http://wiki.airjaldi.org, which I wrote back in September 2007, in the hopes it would spark a lively discussion and might turn into a productive collaborative environment. The document presented a perspective on what has changed and what remains valid today. Particularly, some issues at the forefront of our R&D agenda back in 2007 have since been resolved, while surprisingly many others, where we've and others have made little or no progress, remain open problems to address today.

 

That document did result in substantial academic studies, starting with our own paper (with a very similar title) - "Beyond Pilots: Keeping Rural Wireless Networks Alive" - http://www.usenix.org/event/nsdi08/tech/surana.html
Published in August 2008, this paper have already inspired many researchers, led to many studies and has been quoted in 33 peer reviewed publications: (http://scholar.google.com/scholar?cites=12485503342736570061 ) -- not bad for less then two years. Additionally, I was surprised to find this paper on the syllabus and reading lists of many classes and seminars at leading universities worldwide.

 

Where have we been?

A long absence from one’s own website, such as the one visitors to this website have witnessed for quite some time, requires explanations.

Where

Well, we were here all the time, but as sometimes happens (though shamefully should not happen to an ICT-minded outfit such as ours), our small team was always busy doing other things, or rather – those of us who are willing to submit postings (most are not – they prefer to be out and about putting up nodes and would rather struggle for hours with a pesky connection rather than try to articulate what it is that they are doing).

AirJaldi calling Sidhbari...

 

The past few months at the AirJaldi Network Academy have been quite hectic and very fruitful. Amongst other things were eight weeks spent in Delhi, a key outcome of which is a brand new Red Hat Certified Engineer in our midst! (Me! :-) Of course, it's best to set this fancy titles (and its barefy impressive acronym) aside... This qualification is valuable for the expanded and formalized understanding of Linux internals and basics; a first step, a launch pad from which to blast off towards being "Harder, Better, Faster, Stronger." As AirJaldi grows, with its technology and experience spinning off into a rapidly expanding network, there are exciting opportunities to hone and develop these skills. But more on all that, in other posts and at other times.

As importantly, another iteration of Cisco's IT Essentials: PC Hardware and Software is almost over, just in time before the onslaught of the monsoons is unleashed. Staged a few kilometres from Dharamshala, participants for this episode of ITE were members and associates of Nishtha and Jagori Grameen , two prominent local grassroots NGOs.

Aloha VTC!

 
For around six weeks, beginning in the second half of August and ending late in September, the AirJaldi Network Academy was invited to conduct on-site training at the Tibetan SOS Vocational Training Centre (VTC) at Selakui, a small town 17km. from Dehradun, in the state of Uttarakhand, India. The participants were 21 students from the institution who were close to graduation, a time when they are to venture onwards, putting their skills and abilities to practice in professional work environments.

45 Km., 5Mbps, Basunti is UP!

gompotenna “I have a terrible headache!” admitted Dhonam, climbing down after a 2-hour stint in the    mid-day sun near Pong lake. We were all dehydrated and discouraged. We have been trying to bring up the carefully-planned and so far meticulously executed link for the best part of the day with little success. It was time to rethink our approach

 

 

AirJaldi receives a special mention for excellence at the Stockholm Challenge Award

The Stockholm Challenge Award winners were announced on Thursday, May 22 at a Gala dinner held in Stockholm. The winners were selected from among 2,000 registration, from whom among 145 finalists were selected. Of those, seven projects received prizes as winners of their categories and nine additional projects received special mentions for excellence in the use of ICT.

The AirJaldi Network Academy - Course Announcement!

The AirJaldi Network Academy will be offering the next iteration of Cisco's IT Essentials: PC Hardware and Software between June 9, 2008 and July 4, 2008. Confirm your participation, by registering early!

For more information about the academy, courses, fees and timings, visit The AirJaldi Network Academy.

The AirJaldi Adventure

NicolasBouliane

I arrived in India three months ago. In the middle of the night I landed at the Delhi airport. Exhausted by my 2 days of flying from Montreal to Amsterdam and then to Delhi, I was happy to finally put my feet on the Indian ground for the first time of my life.
I'm a young freelancer that has crossed the ocean, from Quebec, Canada to Himachal Predesh, India to take part, as an internship, of what I would call "the AirJaldi adventure".

AirJaldi a finalist in the Stockholm Challenge Award

With some delay (quite some delay…) we are happy to let you know that we have been selected as finalists for the Stockholm Challenge Award in the Public Administration Category .
The Award promotes ICT4D initiatives by highlighting projects that use ICT to tackle development challenges. The Stockholm Challenge 2008 features a six category award in the following areas: Culture, Economic Development, Education, Environment, Health and Public Administration. The winning projects – one for each category – will be announced at a prize ceremony that will take place in Stockholm on May 22nd. Each winner receive the Stockholm Challenge trophy and certificate of achievement and a cheque for 5,000 Euros.

The AirJaldi Network Academy - Course Announcement!

The AirJaldi Network Academy is offering, between April 7, 2008 and May 2, 2008 Cisco's IT Essentials: PC Hardware and Software in its first campus at the Upper TCV School, one of the highest and most picturesque locations in the Dharamsala area.

For more information about the academy, courses, fees and timings, visit The AirJaldi Network Academy!

Two Courses old!

Inaugurated on a brilliant winter day a little over six weeks ago, the Airjaldi Network Academy is now two courses old, and set firm on its mandate - of providing innovative and practical courses on Information and Communication Technology (ICT), with a particular emphasis on building wireless Internet networks in rural areas. We are now approaching an even more exciting juncture, in which we, the only certified Cisco Networking Academy in Himachal Pradesh that is open to the public, is inviting all interested to enroll in our courses.

Bridging Gaps, Opening Opportunities - the AirJaldi Network Academy is inaugurated

AJNA_2

Presenting AirJaldi to Dr. Abdul Kalam, former President, India and John Chambers, Cisco CEO

On October 30, we were honored to present our work and technology to Dr. APJ Abdul Kalam, the former President of India and a staunch supporter of bringing technology to rural areas, and Mr. John Chambers, CEO of Cisco. The presentation was given as part of the inauguration of Cisco’s newly-built Globalization Centre East, located in Bangalore.

The presentation, given by Jim Forster, a distinguished Cisco engineer, a leader of Cisco’s Digital Inclusion network (DINet) Project, and an AirJaldi director and supporter, included an overview of one of our basic CPE nodes, and a live video conference - carried out using two of our nodes - between Jim and members of our team located outside the demonstration theater.

 

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Jim Forster presenting AirJaldi to Dr. Abdul Kalam (former President, India), John Chambers (CEO, Cisco), and owen Chen (President, Cisco Asia Pacific )

How to aim long distance WiFi antennas - the low-cost way

Very often I'm being asked how can we aim such long distance WiFi links.

A relatively simple way of doing this would be to use a high-power analog signal transmitter fed into the antenna on one side, with a spectrum analyzer identifying that signal on the other side.

In our global village world - we can find the above for less then $300 (total for both sides), which conventionally would cost way over $10,000:

Buy a high-power 2.4Ghz video transmitter from:www.chinawholesaleonline.org
At first - I was a bit worried to give my credit-card on an unknown Chinese web-site. For once, I'm happy that I was brave enough. The owner of that site - Adam, had dispatched the transmitter immediately, and I got it days later via DHL. However, the unit was faulty, it would often not turn-on, the frequency would not be stable and would shift with temperature and the power was less then 300mW.
For a moment I thought to myself that I deserved it for buying from such an unknown source. However, I have emailed Adam, and he had quickly <"read more", to continue>

 

Chinese video transmitter - 2w

Here is the small transmitter being measured with a spectrum analyzer to establish the power. Look at the nice and stable analog signal which is so easy to spot on the far side.

Yahel's talk at UC-Berkeley - October 11th, 2007

My talk at UC-Berkeley, could serve as decent and current source of information about AirJaldi.
While surely not my best talk from a personal point of view (my excuse is that I was sick and under-slept),
I did got to address many issues tanks to the questions from the audience.

It's an hour long and no commercials ... Enjoy:

Watch the video -
* Yahel's talk at UC-Berkeley (new window) *

UCB-Talk

Talking AirJaldi

 

Yahel UCB

Yahel and I have recently made a number presentations on AirJaldi and our work. Press here to join Yahel on a tour of our Wireless Clouds in the Himalayas – a talk given at UC Berkeley’s Center for Information Technology Research in the Interest of Society (CITRIS ), on October 11.

Czech router in the Himalalyas...

   
I'm happy to announce that all 4 wireless routers which where installed on AirJaldi's main tower in Upper-TCV school, where replaced by a single router from the Czech republic!
Thanks to the generous donation of Mr. Lukas Hudecek from IteQ s.r.o of his newly designed quad-radio router.
The robust cast-Aluminum weather-proof enclosure with a massive heat-sink, hosts a MikroTik Router-Board 523A board.
The 4 high-quality Reverse SMA RF connectors at the bottom are an excellent choice for the most demanding outdoors installations of both 5.8 and 2.4 bands, while maintaining a port-density better then what bulky N-type connectors offer.
We feed the router with 48v (it's more like a 56v with batteries fully charged) over a very long PoE drop, through the IP67-rated Ethernet connector.
A proprietary optional connector is added for special applications, such as daisy-chaining additional routers, connecting a video camera etc.
The router is loaded with an AirJaldi Mesh firmware, based on Kamikaze release of OpenWRT.
More details can be found on Itec's web sites:
http://www.outdoor-wireless.com/
Hopefully - we where able to provide Lukas with valuable feedback, which will contribute to an even better version of this router in the future.
Many thanks Lukas !
We look forward for future collaboration...

Installation of Czech router on TCV tower

Dinesh & Rana install the IteQ router on the TCV Tower.

Iteq Outdoor router

Jaldi Charger - safe charging at a reasonable price


Pauli

Pauli Närhi, a student at University of Oulu in Finland, has just completed a very productive half-year internship with us. While in Dharamsala, Pauli focused mostly on developing a battery charger suitable to the very demanding realities of rural India (and rural areas elsewhere). Pauli has just left us, but the power stays! Read Pauli’s own account of his work and the “Jaldi Charger”. You can also download a detailed description of the Jaldi charger hardware design.

AirJaldi in San-Sebastian, Spain

Yahel and Yael infront of San-Sebastian City Hall Since I attended the AirJaldi conference held in Dharamsala on October 2006 only virtually, while sitting in Berkeley, I decided to physically join Yahel for his talk in San-Sebastian, where he was invited to speak at the San Sebastian Municipal Summer Course about AirJaldi's work.

AirJaldi in the news

 

Indian Express

The Indian Express, one of India’s largest English language newspapers, carried an article about AirJaldi in their Weekend edition, the Sunday Express.

While some of the personal details in the article are not always accurate ;^), we thought it would be nice to share it with you. You can view the full article, “Dharamshala Wi-Fi has an Israeli network ” on India Express’ website. Do visit other sections of this website and feel free contact us for more information about our work.

The AirJaldi Network Academy established

 

Learning

The establishment of a training and capacity building center is one of the central components of our vision . The first steps towards realizing this vision were made during the last few weeks.

More

Free telephony project

 

This post is long due, but like they say - better late then never.

Following the AirJaldi conference (end of October 2006) David Rowe came to visit us in Dharamsala, all the way from far Australia.

 

David is leading a unique and exceptionally important project of revolutionary potential: Free Telephony Project

While many of us are still getting used to, and learning the concept of Free / Open Source Software (F/OSS), David's project introduces additional confusion, yet equally innovative concept: Open-Source-Hardware

Open Source Hardware - VoIP PBX

More...