Re: [gaia] Video about community network using HF band
Javier Simó <javier.simo@urjc.es> Wed, 18 March 2020 09:41 UTC
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Subject: Re: [gaia] Video about community network using HF band
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18 years ago we worked on a HF packet-radio based solution and developed improvements using OFDM newQPSK; getting up to 9600 bits/s. I don't know whether I can find the expert who might resemble all the details, code, etc, but if you feel it could be interesting I can explore that. Best Javier El 18/3/20 a las 4:31, Rafael Diniz escribió: > Gracias Luiz! > > We carried initial tests of this system in Mexico. The raw throughput, > in reasonable propagation conditions, is from 500 up to 4k bit/s. In > "real world" tropical region NVIS trx with hundreds of kilometers of > distance, with packet protocol and ARQ layers in place, the net > throughput ranges from 50 to 500 bit/s, depending on many factors. > > Abrazo, > Rafael > > > On 3/17/20 6:23 PM, Luis Martinez wrote: >> Parabens Rafael ! >> It is wonderful, we are discussing a project like that in Mexico. Can >> you share what is the speed you are able to achieve ? >> Obrigado. >> Luiz >> >> >> On March 17, 2020 at 1:37:42 PM, Rafael Diniz (rafael@riseup.net >> <mailto:rafael@riseup.net>) wrote: >> >>> Hi all, >>> >>> Here is the link of our latest developments about HERMES[1]: >>> https://vimeo.com/398331581 >>> >>> Cheers, >>> Rafael Diniz >>> Rhizomatica >>> >>> [1] https://www.rhizomatica.org/hermes/ >>> >>> _______________________________________________ >>> gaia mailing list >>> gaia@irtf.org <mailto:gaia@irtf.org> >>> https://www.irtf.org/mailman/listinfo/gaia > > _______________________________________________ > gaia mailing list > gaia@irtf.org > https://www.irtf.org/mailman/listinfo/gaia -- *Francisco Javier Simó Reigadas* *Profesor, Director de la ETSIT* *Dep**t. Teoría de la Señal y Comunic. y Sist. Telemáticos y Computación* Universidad Rey Juan Carlos Campus de Fuenlabrada(Madrid), España Teléfono: 91 4888167 javier.simo@urjc.es <mailto:javier.simo@urjc.es>| www.urjc.es <http://www.urjc.es>| @URJC |
- [gaia] Video about community network using HF band Rafael Diniz
- Re: [gaia] Video about community network using HF… Luis Martinez
- Re: [gaia] Video about community network using HF… Rafael Diniz
- Re: [gaia] Video about community network using HF… Javier Simó
- Re: [gaia] Video about community network using HF… Adam Burns
- Re: [gaia] Video about community network using HF… Jane Coffin
- Re: [gaia] Video about community network using HF… Rafael Diniz
- Re: [gaia] Video about community network using HF… Rafael Diniz
- Re: [gaia] Video about community network using HF… Rafael Diniz
- Re: [gaia] Video about community network using HF… Rafael Diniz
- Re: [gaia] Video about community network using HF… Javier Simó
- Re: [gaia] Video about community network using HF… Jane Coffin
- Re: [gaia] Video about community network using HF… Adam Burns
- Re: [gaia] Video about community network using HF… Rafael Diniz
- Re: [gaia] Video about community network using HF… Leandro Navarro
- Re: [gaia] Video about community network using HF… Luis Martinez
- Re: [gaia] Video about community network using HF… David Johnson