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[liberationtech] Can HAM radio be used for communication between health workers in rural areas with no cell connectivity?

Carlo Cosmatos carlo.cosmatos at internetgov.info
Thu Mar 7 11:04:29 PST 2013


They exist a lot of digital modes used by the amateur radio operators,
but the speeds are very low, from 31,25 baud to 64bps for the
traditional modes.

(PSK, MFSK, PACTOR, RTTY are mostly used, obviously for chatting, while
the APRS is mainly used for the identification and localization of a
transmitter and weather data)

Here you can see an example of the modus operandi of digital modes (in
this case is PSK) (they exist obviously interfaces more simple):
http://www.youtube.com/watch?v=0lSXs4p7HUg

-------

HInternet actually is my preferred mode, its about the implementation of
wireless data networks over amateur radio frequencies called High-Speed
Multimedia Radio (HSMM):

I know this Project:

http://www.hsmm-mesh.org/

Related articles:

http://www.arrl.org/files/file/Technology/tis/info/pdf/QST_Jul_2006_p84.pdf
http://www.qsl.net/kb9mwr/projects/wireless/High%20Speed%20Multimedia%20Radio.pdf

(I didn't know about the Project Byzantium, I'll read, very interesting)

-------

With ATV (Amateur television) it is possible to broadcast also video and
audio, like the satellites do.

-------

The problem with amateur radio as already mentioned are related to the
privacy, security and mainly obtaining a stable permanent connectivity.

The Licensing Exams are not difficult and the contents are very
interesting. On the web is available a huge amount of documentation and
also apps that can help you obtain the call sign.

-------

For my experience Amateur radio it was a kind of liberation technology,
I use it 30 years ago without licence, and it was indeed the first
global social network that I participate, I have a collection of
confirmed communications, letters, photographs and many other gadgets
received from all over the world. For me Wireless it means Freedom.

Actually I have a full licence, and I encourage everyone to go on. With
the licence you can develop solutions, make connectivity experiments and
tests, otherwise legally impossible.

--------

I believe that in the future the use of radio frequencies for MESH
networks (also with the use of aerial swarms 3D printed) they will
provide a sustainable Internet connectivity solution for the rural areas.

Actually is very important to sustain policies promoting open spectrum
and unlicensed spectrum for Internet connectivity.

Hoping that I was a little bit helpful
Kind regards
carlo


Il 3/7/13 5:38 PM, The Doctor ha scritto:
> On 03/07/2013 03:02 AM, Eugen Leitl wrote:
>
> > The whole ham culture and liberation technologies do not really
> > mix.
>
> Unfortunately, this has been my experience as well.
>
> --
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