[Hamara-devel] Share Wireless Hack info

[Vikas Tara]

On 21/09/15 18:00, shirish wrote:
> at bottom :-
>
> On Monday 21 September 2015 05:23 PM, Syam wrote:
>> Hi Hamara Team,
>>
>> Can you share some details of the wireless hack you did.
>>
>> Links to the Hardwares used ?
>>
>> And share what are you working on now?
>>
>
> Hi Syam,
>
> AFAIK what has been done as far as on the Pi is concerned is using the 
> RPI 900 with a DNT module.
That's correct
> I do not know whether the DNT Module is the same as shared or not. 
> There are two it seems, DNT 900 and DNT 2400 (spells suspiciously 
> close to TNT and am guessing it would also be disruptive to current 
> telecom monopolies.)
You can only use DNT 2400 in India (which is a shame) because the 
government sold the other spectrum to mobile phone companies.
>
> See http://rpi900.com/hardware/features.html
>
> I *think* the real innovation is yet to take place, both in terms of 
> power, bandwidth and materials.
>
> As shared by Vikas, both these products would need to be imported, and 
> while hamara would be looking to import the antennae and the DNT 
> module, what would be kick-ass is if we could have some sort of local 
> replacements of the radio antennae as well as the DNT module.
Right now, we are looking to bring in the DNT module and RPi 900. Also 
certain connectors. I think it would be best to also provide an antenna kit.
>
> Even the laptop antennae on the other end that was show-cased was a 
> hack. I would guess and believe, we need to find something much more 
> cheaper and sturdier material (as that antennae is extremely fragile 
> as was shared by Gurvinder) .
This depends on your use case. Step 1 should be to encourage DIY 
enthusiasts by making the components available.

With Gurvinder's set up - simply adding metal cans around each antenna 
focuses the signal and significantly increases the range - certainly 
above your usual wireless routers.
>
> So there's lot of possibility of innovation which probably would lead 
> to something which can be at a deployable state.
Most people wanting to join in with this are probably not going to jump 
straight to really long ranges - so supplying the base components should 
be find for now.

>
> Hope Vikas chimes in with some more details.
Hope that helps!