well, 2.4 GHz (compared to 70-500 MHz), a short delay profile will be what you are working with, but with a high likelihood of 0dB echos. The echoes tend to get quite strong due to the large reflective surface performance. But there tends to be alot of them, rather than 1 or two dominant echos . There is plenty of data on this in the literature.
Indoors, there is a tendency for flat fading even with very wide bandwidths, so some sort of diversity (as Greg axwell pointed out) is required. g On 19/09/2017 12:50 AM, Adrian Musceac wrote: > Hi Glen, > > On 9/18/17, glen english <g...@cortexrf.com.au> wrote: >> It would not improve the performance in a low local multipath dominant >> two tap local delay scenario like rural/farmland. >> > > I would be very curious about the dB levels vs. frequency. From my > knowledge, above 400 MHz is highly unusual to have such a long delay > with such a low ratio. But I'm not a specialist, and my data is mainly > ~2.4 GHz so I'll try to prove it by eating the cake and providing BER > stats vs. GPS data (speed etc.) vs. simulation (qradiopredict has > CLC2006 data and in the future will do other models) > > Cheers, > Adrian > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Freetel-codec2 mailing list > Freetel-codec2@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
