Hi Alejandro, I would except much less. We tried to communicate in grain (corn to be exact), and it was less than 1m. Eventually, we used 868MHz, which was still really bad, but we could live with that. But anyway, you should try it, it's quite simple. One more thing: in our tests, it seemed that it was much better if the mote was in a bigger box, so its antenna gets farther from the grain (but we couldn't use this solution).
Andris On Fri, Oct 5, 2012 at 6:53 PM, <[email protected]> wrote: > Dear Hamid Rafiei. > > Thanks for your answer. > > What do you think is the maximum distance in the best case? e.g. in 50 m. > > Sincerely, > > Alejandro > > >> Hi, >> >> I believe it all depends on the level of moisture in the soil, in case of >> a >> high level of humidity it wouldn't be much at all >> >> On Friday, October 5, 2012, wrote: >> >>> Dear all, >>> >>> Someone know how much is the maximum distance to communicate two TelosB >>> under the soil using antenna of 5 dBi each one and 2.4 GHz? I mean the >>> two >>> sensors are "buried" even the antennas as well. >>> >>> Thanks in advance for any information. >>> >>> Regards, >>> >>> Alejandro. >>> >>> >>> >>> _______________________________________________ >>> Tinyos-help mailing list >>> [email protected] <javascript:;> >>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>> >> >> >> -- >> -- Sent from my iPhone >> > > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
