Re: [silk] Internet access for senior citizen in special care facility

2008-02-26 Thread ashok _
On Fri, Feb 15, 2008 at 12:11 PM, rene wrote:
   If i bought an off-the-shelf antenna how easy is it to hook it up with
   a standard
   dlink, linksys type wifi router ... ?
  Linksys Router (I only know the WRT54G series) have a somehow unique
  Antenna connector, it's called TNC-RP (stands for reverse polarity TNC).
  See an image at http://www.i-tec.it/catalog/images/rptnc.jpg (Most of
  other available routers have a SMA-RP connector, which is smaller.)


Thanks for this and all the other advice... i have a working setup now
similar to
what is described above. Some issues related to legality are still
pending from the
local council authorities... but its a small town so shouldnt be a
major problem.

thanks
ashok



Re: [silk] Internet access for senior citizen in special care facility

2008-02-15 Thread rene

Hi Ashok,

(yeah, I'm now on the list, a personal introduction will follow)

ashok _ wrote:

but most of the instructions seems to talk about homebrew antennas :
http://www.instructables.com/id/WiFi-Directional-antenna-fix--from-Aluminium-can./

actually if you are able to work precise, (which is not that easy), than
a selfbuild one is a good alternative. you know what you get, if you buy
 one you have usually no idea.


If i bought an off-the-shelf antenna how easy is it to hook it up with
a standard
dlink, linksys type wifi router ... ?

Linksys Router (I only know the WRT54G series) have a somehow unique
Antenna connector, it's called TNC-RP (stands for reverse polarity TNC).
See an image at http://www.i-tec.it/catalog/images/rptnc.jpg (Most of
other available routers have a SMA-RP connector, which is smaller.)

Regards,
Rene





Re: [silk] Internet access for senior citizen in special care facility

2008-02-15 Thread va
On Fri, Feb 15, 2008 at 9:11 AM, rene [EMAIL PROTECTED] wrote:
 Hi Ashok,

  (yeah, I'm now on the list, a personal introduction will follow)

Hi Rene, wassup with the wi-fi group ?

-- 
|| vid ||



Re: [silk] Internet access for senior citizen in special care facility

2008-02-14 Thread ashok _
On Wed, Feb 13, 2008 at 9:19 PM, Srini Ramakrishnan wrote:
  Does this sound feasible ? Is there a better way of doing this ?
  What you've outlined seems unreliable without someone to support it,
  is there skilled help available?


the senior citizen's son (no young man himself) lives in the house
mentioned 250 metres
from the facility... but he is not very clued up about fixing
problems, though he is able to use
a computer reasonably well... If the ADSL goes down he can call some
technical personnel to
fix it (as he uses it himself).


  A more reliable solution wouldn't use a PC or flaky connectivity.
  Inexpensive and reliable however don't seem to co-exist yet in the
  video conferencing world.


Yeah :-( but they cost a lot and require specialized equipment at both ends...

Anyone recommend a wifi signal booster that does the require range
through old concrete and
stone  walls ?



Re: [silk] Internet access for senior citizen in special care facility

2008-02-14 Thread Venkat Mangudi's Silk Account
If you can buy an old WRT54G that can use DD-WRT firmware, signal can
be boosted or two of them can be used for repeating forming a kind of
mesh if u know someb ody who lives between the two places. I
understand WRT54G-L can be used similarly. Tons of info about this on
the Net.

On 2/14/08, ashok _ [EMAIL PROTECTED] wrote:
 On Wed, Feb 13, 2008 at 9:19 PM, Srini Ramakrishnan wrote:
   Does this sound feasible ? Is there a better way of doing this ?
   What you've outlined seems unreliable without someone to support it,
   is there skilled help available?
 

 the senior citizen's son (no young man himself) lives in the house
 mentioned 250 metres
 from the facility... but he is not very clued up about fixing
 problems, though he is able to use
 a computer reasonably well... If the ADSL goes down he can call some
 technical personnel to
 fix it (as he uses it himself).


   A more reliable solution wouldn't use a PC or flaky connectivity.
   Inexpensive and reliable however don't seem to co-exist yet in the
   video conferencing world.
 

 Yeah :-( but they cost a lot and require specialized equipment at both
 ends...

 Anyone recommend a wifi signal booster that does the require range
 through old concrete and
 stone  walls ?





Re: [silk] Internet access for senior citizen in special care facility

2008-02-14 Thread Eugen Leitl
On Thu, Feb 14, 2008 at 05:52:15PM +0530, Suresh Ramasubramanian wrote:

 If they are just 250m apart, string Ethernet or something across the
 rooftops. Contact your local cablewallah, he can do that without too many

Uh, no galvanic separation. This will fry your end points in no time.
Might string a thick copper cable along with it, and pull the end points
to the same ground. Won't do a damn thing for lighting, though.

 issues, knows the right cops to pay off etc.

-- 
Eugen* Leitl a href=http://leitl.org;leitl/a http://leitl.org
__
ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org
8B29F6BE: 099D 78BA 2FD3 B014 B08A  7779 75B0 2443 8B29 F6BE



Re: [silk] Internet access for senior citizen in special care facility

2008-02-14 Thread ashok _
On Thu, Feb 14, 2008 at 3:22 PM, Suresh Ramasubramanian wrote:
 If they are just 250m apart, string Ethernet or something across the
  rooftops. Contact your local cablewallah, he can do that without too many
  issues, knows the right cops to pay off etc.


this is in a European country so the regulations arent as malleable as
they ought to be  :-)



Re: [silk] Internet access for senior citizen in special care facility

2008-02-14 Thread Kiran Jonnalagadda

On 14-Feb-08, at 5:51 PM, Venkat Mangudi's Silk Account wrote:


If you can buy an old WRT54G that can use DD-WRT firmware, signal can
be boosted or two of them can be used for repeating forming a kind of
mesh if u know someb ody who lives between the two places. I
understand WRT54G-L can be used similarly. Tons of info about this on
the Net.


Rene Ejury over at the Bangalore WiFi Mesh project (and CCed) has  
experience setting up mesh networks in Germany.


Rene, you may want to start here for context:
http://groups.yahoo.com/group/silk-list/message/24313




Re: [silk] Internet access for senior citizen in special care facility

2008-02-14 Thread rene

Hi All,

(not sure if I'm allowed to post to the list, so cc to Jace)

the right way was mentioned, just get yourself a cheap but good 
directional Antenna. Forget everything about signal boosters, they are 
usually crap and will damage the signal and the whole spectrum more than 
they will help. Use a directional Antenne, this will boost the signal in 
the sending and the receiving direction and filter the noise which is 
around you, than 250m should be no problem at all.


Regards,
Rene

PS: Waiting since 16ht of Jan 08 of administrator approval to follow 
this list, any chance for [EMAIL PROTECTED] ?


Kiran Jonnalagadda wrote:

On 14-Feb-08, at 5:51 PM, Venkat Mangudi's Silk Account wrote:


If you can buy an old WRT54G that can use DD-WRT firmware, signal can
be boosted or two of them can be used for repeating forming a kind of
mesh if u know someb ody who lives between the two places. I
understand WRT54G-L can be used similarly. Tons of info about this on
the Net.


Rene Ejury over at the Bangalore WiFi Mesh project (and CCed) has 
experience setting up mesh networks in Germany.


Rene, you may want to start here for context:
http://groups.yahoo.com/group/silk-list/message/24313






Re: [silk] Internet access for senior citizen in special care facility

2008-02-14 Thread ashok _
On Thu, Feb 14, 2008 at 8:10 PM, rene wrote:

  the right way was mentioned, just get yourself a cheap but good
  directional Antenna. Forget everything about signal boosters, they are
  usually crap and will damage the signal and the whole spectrum more than
  they will help. Use a directional Antenne, this will boost the signal in
  the sending and the receiving direction and filter the noise which is
  around you, than 250m should be no problem at all.


Okay, understood
I found some info online
http://www.radiolabs.com/Articles/wifi-antenna.html

but most of the instructions seems to talk about homebrew antennas :
http://www.instructables.com/id/WiFi-Directional-antenna-fix--from-Aluminium-can./

If i bought an off-the-shelf antenna how easy is it to hook it up with
a standard
dlink, linksys type wifi router ... ?

thanks

ashok


So primarily I want a point-to-point kind of system with good signal strength,
since the idea is to make skype/video available over the connection...



[silk] Internet access for senior citizen in special care facility

2008-02-13 Thread ashok _
I have the following scenario :

1) A senior citizen with alzheimers who has been confined to a special
care facility.
2) Senior citizen's residence is about 250 metres from the special care facility
3) The senior citizen has a part of her family living in the residence
mentioned in (2),
there are other parts of the family living in other countries.
4) The family living in other countries want to communicate on a daily
basis with the senior citizen, preferably via video chat.

So the idea is to provide an EEEpc or similar compact laptop for the
senior citizen's room
in the special care facility room.

For internet access : ADSL is available at the house 250 metres away,
so setting up a WiFi
access point, with maybe a Wifi signal booster. This would then be
accessible from the PC
at the special care facility.

Does this sound feasible ? Is there a better way of doing this ?



Re: [silk] Internet access for senior citizen in special care facility

2008-02-13 Thread Srini Ramakrishnan
On Feb 13, 2008 2:11 PM, ashok _ [EMAIL PROTECTED] wrote:
 I have the following scenario :
[...]
 Does this sound feasible ? Is there a better way of doing this ?

What you've outlined seems unreliable without someone to support it,
is there skilled help available?

A more reliable solution wouldn't use a PC or flaky connectivity.
Inexpensive and reliable however don't seem to co-exist yet in the
video conferencing world.

All things considered, what you say seems most viable considering the
conditions.

Cheeni



Re: [silk] Internet access for senior citizen in special care facility

2008-02-13 Thread Suresh Ramasubramanian

Srini Ramakrishnan [13/02/08 23:49 +0530]:

On Feb 13, 2008 2:11 PM, ashok _ [EMAIL PROTECTED] wrote:

I have the following scenario :

[...]

Does this sound feasible ? Is there a better way of doing this ?


What you've outlined seems unreliable without someone to support it,
is there skilled help available?


Arun Mehta and Vickram Crishna over on india-gii are probably the leading
experts in India on ICTs for disabled people (they developed some software
for stephen hawking, not that its been used by prof hawking yet..)

arun at holisticit dot com



Re: [silk] Internet access for senior citizen in special care facility

2008-02-13 Thread Ashok Krish
On Feb 14, 2008 1:59 AM, Suresh Ramasubramanian [EMAIL PROTECTED] wrote:

 Srini Ramakrishnan [13/02/08 23:49 +0530]:
  Does this sound feasible ? Is there a better way of doing this ?


Might work if one can ensure that it's always on, and connected. Perhaps,
some remote management software to keep things running might be useful. One
of the relatives here or abroad could be designated sysadmin.


-- 
Krish Ashok
Blog: krishashok.wordpress.com
GTalk: krishashok
www.stage.fm/krishashok